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Brigade Tech Garden B-4, Bengaluru

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BRIGADE TECH GARDEN-B4 at Brookfield’s, Bengaluru – has 2 levels of RCC floor plate to suit the circumference of the Dome and envelope the whole space with a Dome shaped structural system which receives either concrete or glazing as an envelope. Sterling was involved as Structural Engineers for both RCC and Structural steel frame works.

After the Architectural concept was frozen, visualization of structural system, its varying profiles at different cross section, thinking about the material which can be used, arriving at a structural system which could be implemented, inspection of fabrication process, identifying the difficulties and wastages, after shifting the materials to site addressing the various difficulties during execution and finally obtaining the profile close to its intension.

Spray Concreting was first time used in building in Bengaluru where proportion of accelerator used in concrete and completing the concreting to the closest profile. Thereafter waterproofing and finishing.

Structural Aspects

This was in two parts.

1. The whole dome

2. The façade with curved surface with glass profile.

The entire structural profile including both the aspects i.e., glazing and concreting were analysed for various section and adequate sizing of members and its fabrication. The loads of the suspended partition weight also needed to be evaluated and executed.

Challenges

Architecture and façade consultants gave the profiles at different section of the Dome. Creating computer model of all the profiles and analysing it in 3D

Designing of all the frames of different sections including the change in curvature in width of the members to minimize the members protruding out of the surface adjusting the support systems to the RCC building.

While executing lot of difficulties experienced in holding down.

Salient Features

3D model of various cross sections having different load condition on each frame because of concrete and glass and executing them at site.

It is the combination of section to obtain the profile which has got different loading conditions and adding to structure. Spray concreting over the entire surface of the Dome required to be done.

The Clients requirement and the architectural designs, several alternatives were discussed and all of them were either to be imported or very expensive. I felt that this can be achieved in Indian conditions much more practical and cost effective, watertight alternative. The process of arriving at a solution was to define the geometry of the structure from 3D model. This was given to us as Data & we visualized the structure as series of sections at close intervals in order to achieve 3D profiles. A 3D computer model was generated in which every member is to be profiled differently including the inclination of Top flange. Further to reduce the cost, few internal columns were picked up to support the roof with tetrahedron members meeting different members in different inclination.

Fabrication also had lot of challenges in order to minimize the stages, computer software was used to cut the webs to profile and bend the flanges with strips. These were fabricated in the workshop under moderate controlled environment. In order to meet the variations in connecting the base structure, some alterations were needed since the profiles in continuously varying. MS sheets with stiffeners were used to moderately get the profile as desired.

The very important part of the work was using the spray concrete with injection of accelerator to stick to the surface against and along the gravity. The finishing works were carried out more accurately and subsequent waterproofing and final finish. Extremely happy for achieving this structure.”

Nagendra Kumar, Director, Sterling Engineering Consultants Pvt Ltd

Factfile:

Developer: Brigade Enterprise Ltd

Architect: Zachariah Consultants

Structural Consultant: Sterling Engineering Consultants Pvt Ltd

PMC: CBRE

Façade Design : Building Envelope Specialist (BES)

Steel Suppliers : TATA Steel

Tales – P S Somasunder

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Talking About Life’s Engineering Saga (TALES)’ is a segment that exclusively focuses on the top Structural Consultants across the globe sharing their engineering journey in their own words. We have – P S Somasunder – sharing his deep knowledge with us…

A structural engineer whose journey as you read would highly surely inspire is here to share it with us….

P S Somasunder, Managing Director, Facilities & Building Solutions Pvt Ltd

INSPIRATION…

I come from a family where everyone is an engineer, and I was the youngest in the house and we already had mechanical engineers, electricity engineers and other engineers. Even I wanted to be a mechanical engineer, but initially I got seat outside Bangalore in Mechanical engineering ,and as in those days it was difficult to get seat in government colleges in Bangalore. I was very happy when I got transferred in Bangalore and for civil engineering course ,and since I managed getting ranks initially in few semesters and realized I can do better in civil engineering by concentrating more and putting more efforts etc and after which I got ranks in many of the semesters in the entire course and that is how this inspired me to take up civil engineering.


LEARNING CURVE FROM STUDENT TO PRO…

I was quite lucky because only few civil engineering students were selected by L&T in the campus interview, and I was one among them as a management trainee. Though I was initially resistant, but my family said since you are a civil Engineer, stick to civil Engineering only. Also, my mentor Mr. A.K Sahasrabudhe in the initial 2 years as a trainee with L&T ,and Mr Dheeraj Shah of Oberoi hotels ,who thought me how-to do-good shuttering and good quality civil work, thanks to people like these in my formative years , for what I am today. I have done many projects all over the country. In this entire journey have done a lot of projects both in India and abroad , from concrete to steel.

CHALLENGES…

I would talk about the structural challenges we face in our projects. Quality and safety in India are only available when it is demanded by the client or the project managers. It rarely comes on its own, very few companies do it as a matter of policy or philosophy otherwise these are the challenges even today.

The major challenge in those days was that some of consultants just give a number or budget without worrying about it and later the budgets usually go up. They should ensure they give what they promise, ensure that whatever dynamics are happening in the project are captured well and integrated and this way a project manager helps the structural consultants to do a better job. He can be trouble-shooter  telling them whenever the quantity goes higher , saying that they are offshoots and also gives the options to be utilised to mitigate this and without compromising any quality or safety aspects . I think mutual synergy between the project manager and structural consultant will go the long way in making the industry proud of its own projects

USAGE OF PARALLEL FLANGE BEAMS…

Parallel flange beams in not used in a large way and its matter of time it must be used much more.

 

CHANGE TO WITNESS…

I would like to state with an example when I was with L&T,WE have done an Indoor Stadium project which I wish would have been done in steel now.

I believe with steel; you can do wonders in limited time span making it an elegant structure. While the problem with concrete is when the span increases, the depth /weight ,increases which is a huge problem in handling and logistics etc and , we don’t have to worry about this much in steel. One can do wonders with steel just like we did ITC in Pune. With approx. 65 metre span column free space The flexibility that steels offers is unique as well as it saves a lot of time, and it is way forward.

AFFAIR WITH STEEL…

In the journey of 17 years as FABS , starting from 2205 we have done OVER 200 projects. I would say 70 per cent of the projects are industrial and all of them are with many big brands name eg BMW, Toyota, Volva Bosch, ITC etc. While all these ideally, it’s a steel structure and normally pre-engineered building. We are into this for a long long, time and Now it is much more lighter material and we are able to do longer spans without getting worried.

BEST STEEL WORK…

ITC Ranjangaon Pune is one of the best because it was very tough and challenging in terms of fabrication and erection since it was huge spans. So, we had to plan well and ensure we erected safely. ITC is a great team to work with and INTERARCH THE VENDOR they helped us in making the erection and complex work easy.


Other PROJECTS WE would say there is one Volvo factory Expansion where we had to build a new factory which is adjacent to the existing factory, and we ensured the not a single day of production was lost. So, the challenge we could overcome because of the fantastic support from Volvo and such practical challenge we could easily overcome.

ITC, Haridwar where we had to build seven factories at the same time, and it was not completely pre – engineered building. We had to erect RCC columns of almost five meters and then erect the pre-engineered building. No Indian Manufacturer was able to deliver the quantum of steel (14 Lacs square feet) which was during the formation of state of Uttaranchal. During those time in 2005 no PEB manufacturer was able to deliver this quantum while today we have many PEB Players. They wanted the project in 7 months, but we were able to deliver it in time as we got the PEB steel from Bluscope China .

UPGARDING WITH CHANGING TIMES…

One is by attending seminars, or by reading which is not my great passion, and interact with people from the industry.

Attending negotiation meetings where the suppliers come up with very good ideas, they come out with wonderful ideas and by just listening to people you get some very good ideas.

I also interact with senior core team members from my firm who are managing 5-6 clients at a time who share their knowledge and we do go to the various project sites to understand the challenges they face .By talking to them on various issues , and this helps me keep in mind for future projects and this is the way we continuously improve. This is how I keep myself updated.

QUICK FACTS

College Name & Place: University Visvesvaraya College of Engineering (UVCE), Bangalore.

Total Years of Experience: 40 years

Mentor or Idol: Mr A.K.Sahasrabudhe of L&T,Mr. Dheeraj Shah of Oberoi Hotels & Mr. K.V.Rangaswamy OF l&T -ECC

Mantra for Success: Hard Work and never be complacent

Want to be remembered as : A good human being and then as an engineer

Projects currently working on : Bosch, Britannia Dairy plant pune, Plasmagen -Pharma plant, INDO SPACE Logistics, Manjushree plant ,Coca Cola plant in Andhra Pradesh ,Graviss foods, Griffiths, and many other industrial projects.

Pearl Resort

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This special section covers an out-of-the-box design with steel as an essential element of the design. The main aim of this section is to showcase how steel can be innovatively used in today’s world of architecture.

Here’s Ar Sudiksha Parekh, Principal Architect, Imprint Architects, unveils their out-of-the-box design concept, that ought to turn the tables in the future…

Imprints is a company set up by an architect who has realized the need to bridge the gap between common man’s aspirations to creativity and the gap between contractors and clients. Here is the Architect solving this with yet another innovatively designed structure.

Steel’s invention has provided architects, engineers, and designers a competitive advantage in creating unique, organic, and complex structures. Steel technology advancements have proven to be beneficial to both designers and clients. Steel allows for time saving, cost-effective and environmentally friendly solutions.

The Pearl Resort’s design is based on a pearl nestled quietly in an enclosed seashell, periodically disturbed by the waves crashing on the shoreline. Similarly, the pearl resort was created with the traditional, ornately decorated haveli in mind, as well as the pearl in a seashell. The pearl resort sits on a waterbody with a shining steel beam construction that resembles a shell. Steel, due of its versatility, is chosen for the shell’s design.

The task at hand was to design a seven-star resort along a body of water. The minute aspects of a haveli, such as jalis and jharokha, have been included. The upper shell-like steel structure adds to the resort’s elegance while also identifying the resort’s overall concept.

Architect’s Interpretation

Steel technology advancements have proven to be beneficial to both designers and clients. Steel allows for time saving, cost-effective and environmentally friendly solutions. The pearl resort was created with the traditional, ornately decorated haveli in mind, as well as the pearl in a seashell. The pearl resort sits on a waterbody with a shining steel beam construction that resembles a shell. Steel, due of its versatility, is chosen for the shell’s design.”

Sudiksha Parekh, Principal Architect, Imprint Architects

STEEL BOOSTS CREATIVITY

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Steel offers bouquet of advantages making it the finest green product. It enables creativity and flexibility making it convenient and easier to shape structures, says, Ar. Swapnil Jaggi, Principal Architect, Swapnil Jaggi Architects

Q. What are the major advantages of using steel vis-à-vis conventional materials?

A. As per our experience steel structure is one of the finest green products. Some of the common advantages are design, strength and durability, light in weight, easy installation and speed in construction, pest, and weather resistance.

Q. How structural steel can be innovatively used in construction to provide design aesthetics and at the same time offer economical solution?

A. As steel can be fabricated in any shape, structures could be made rapidly and moderately cheap. Because of simple-to-make portions of steel structure, it is hassle- free to install and assemble them in any site, so steel could help to provide housing multi- dwelling. Large span and column free structures can be creatively used in any desired shapes and forms.

Q. What is your take on the variety of sections/grades provided by our steel producers for various demands of creativity?

A. Steel can span greater distances with steel joints. Steel hollow sections have the unique characteristic that distinguishes itself from other building material. It not only gives greater flexibility to shape structures but also makes it convenient and easier to express creativity.

Different varieties of steel sections/ grade give us freedom to design our structure with multi dimension. We can use different sizes of section as per the design demand.

Q. What trend are we going to witness in next 5-7 years, as far as designing structures with steel is concerned?

A. Since steel is one of the most durable and strong material available. As the development rate of India is high, demand of steel is huge. In upcoming years, we will be witnessing small and large sized structures made of steel, in various shapes and form. Utilising steel structures for small individual bungalows/ buildings will surely be visible in upcoming years.

Also, steel is cost effective so it could be used for affordable housing and its recycling properties will allow to create temporary structures too.

Q. What should be the strategy of industry in promoting structural steel construction in India?

A. In Today’s ecologically awareness times, steel wins the hand down over wood and plastic. Some strategies to promote steel in India are the architect’s and the designer’s steel work reflecting the growth in infrastructure and inspiring at the same time. Creating opportunities by organizing competitions which helps the designers to learn more about steel and when the common people see those structures, they will understand how versatile steel could be used.

Through regular seminars, webinars and talk shows, steel suppliers get in touch with the designers regularly. The Research and development sector should be highly promoted.

Q.Which is the iconic steel-specific projects executed by you?

A. The Flower Story, Telibandha, Raipur, Chhattisgarh:

The client came up with a concept project of FLOWER BOUTIQUE- a luxury retail outlet.

Steel being the core element proved as cost effective yet giving a crisp look to the space. A punch of subtle color crafted on the arched railing creates sleek and clean effect in the staircase. Extended steps are fabricated to increase the width of the steps. Display Racks are fabricated and painted for the gifts and flowers. In the mezzanine floor, the partition is framed beautifully by series of arches, just creating enough visual separation from the ground floor, while keeping the spaces cohesive at the same time.

Combination of spotlights, hanging lights and wall lamps are used in an artistic manner. For the display area, spotlights are being installed. To enhance the space, metal encased hanging lights hanged on the metal grid patterned jali attached in the ceiling gives a sense of hugeness to the space.

Light House Projects

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The Ministry of Housing and Urban Affairs had organized a Global Housing Technology Challenge – India (GHTC- India) with the aim to identify and mainstream a basket of innovative technologies from across the globe for the housing construction sector that are sustainable, eco-friendly, and disaster-resilient. The shortlisted technologies from the Challenge are being used to construct Light House Projects (LHP) under Pradhan Mantri Awas Yojana – Urban (PMAY-U) at six locations across India.

These LHPs are being built using innovative technology to demonstrate & deliver ready to live houses with speed, economy, and better quality of construction in a sustainable manner, suitable to the geo-climatic and hazard conditions of the region.

Skeleton Consultants have been associated from the initial stage on the development of these alternate technologies for use of housing construction. Currently structural engineering consultancy services for three Light House Project (LHP) at Indore, Lucknow & Agartala is being done by them.

Structural Aspects

With the aim of using these projects as live demonstration for future projects on various aspects of transfer of these technologies to field application, the structural configuration and construction material was selected based on various parameters, such as functionality, performance, availability, and ease of construction, after brainstorming with each stakeholder. The following is brief of various structural aspects of the project:

  • The residential towers in these projects are ranging from G+6 to G+13.
  • considering the latest developments in field, demand of cost effective, rapid, and sustainable design and obtaining desired performance to satisfy various codal provisions, the buildings are envisaged as RC steel hybrid structure.
  • The structural system of buildings consists of substructure up to plinth level in RCC and superstructure in Ductile RC structural walls with pre-engineered structural steel frames.
  • To achieve economy in design, sturdy structural behaviour and enable faster construction, RC structural walls are proposed only at communal areas around Stairs & Lifts with structural steel frames at majority of locations.
  • The RC structural walls along with special moment steel frames at selected locations are designed to cater the lateral load due to Wind & Earthquake. The other frames are designed as ordinary moment frames to transfer only gravity loads.
  • The floor system comprises of steel beams with concrete slab over deep profiled metal deck sheet to avoid intermediate joist to achieve clear height.
  • The structural design of buildings is carried out in accordance with the provisions of IS875, IS1893, IS456, IS800 and NBC.
  • The structural design of building has been Peer reviewed and approved by IIT Delhi and committee comprising of expert from IITs, CBRI & BMTPC.

Encounters

In process to make the system future ready, various challenges/complexities were faced:

  • The Lateral load resistant system: Out of the various available alternatives like moment frames, RC Shear walls, braced frames, dampers, base isolation etc, Dual system of RC structural walls & steel frames was adopted owing aesthetics, functional, structural, cost-effective and construct ability. The location of Shear walls and special moment frames were carefully chosen to fulfil the behaviour in dynamic effects due to Wind & Earthquake.
  • Integration of Innovative Technology unit with structural frames: The technical details and installation procedure of prefabricated wall units of innovative technology were understood from the technology provider of each project. The detailing of structural steel frames & connections has been done to accommodate the technology components in design with ease.
  • Economic & Rapid construction: During the design development, it was stressed to have symmetric configuration and modular design. The structure has been designed & detailed considering High Strength factory made Pre-engineered Steel sections with bolted connection in such a way that it is easy, repetitive and enhances construction productivity with Reliable quality & Rapid erection also reducing wastage & unskilled work.

Building Frames

The Primary frame of the building consists of rigid jointed special moment resisting structural steel frames to cater lateral loads with RC structural walls. Secondary frame comprises of ordinary moment resisting structural steel frames to cater gravity loads only.

For floor system, steel beams at frame location were provided only without any secondary members such as Joists. Plate fabricated I section made of high strength steel having yield strength of 345 MPa have been used for framing & flooring members.

Salient Features

The Salient features of these projects are use of alternate innovative technologies for rapid & sustainable construction. In LHP at Indore, Japanese technology of Prefabricated Sandwich Panel system made of cement or calcium silicate boards and cement mortar with EPS granules balls shall be used. The light houses in Agartala will be built using Light Gauge Steel Frame (LGSF) System technology innovated in New Zealand. LGSF system is made of galvanized light gauge steel components produced by cold forming method. Canada’s technology of Stay in place (SIP) PVC wall will be used in Lucknow. The SIP walls consist of rigid poly-vinyl chloride (PVC) based polymer panels as a permanent stay-in-place finished formwork for concrete. The following are the advantages of these technologies:

  • Being factory made, brings speed in construction.
  • The panels have light weight material as core material, which brings resource efficiency, better thermal insulation, acoustics & energy efficiency.
  • Being light in weight results in lower dead load of building & foundation size.

Structural Uniqueness

The superstructure is designed in structural steel which offers flexibility and strength, in addition to being light weight material. Using structural steel, forces in the structure are reduced and its foundations are therefore lighter. This reduction of design forces significantly reduces the cost of both, the superstructure, and foundations of a building.

The use of Dual system of RC structural walls & High Strength Pre-engineered Steel frames for lateral load resistance offers better and reliable structural behaviour and ease of construction where both the activities can be carried out independently.

The combination of special moment resisting frames & ordinary moment frames helped in optimizing the cost since the lateral loads were transferred at selected locations only and most of the structure needs to withstand gravity loads only.

High strength plate fabricated I-Section produced in factories with controlled quality and accuracy have been used to suit the demand of these fast-track projects.

With increasing demand of residential dwelling units in country and huge gap created due to speed of conventional construction technique has encouraged usage of innovative technology practiced world over to be used. Structural steel with its in-built attributes when integrated with these technology offers added advantages of assured quality, enhanced durability, reliable performance and cost effective & rapid construction for multi storey residential projects. Over the years, We at Skeleton, have developed expertise and competency in projects involving structural steel and alternate technologies. Our learnings from past projects and understanding of innovative technology has helped us in delivering effective & optimized structural design of these projects.”

Nitesh Agrawal, General Manager-Operation, Skeleton Consultants Pvt Ltd

Factfile

Client: Ministry of Housing and Urban Affairs & BMTPC

Architect: Sthapati Associates Pvt Ltd

Structural Consultant: Skeleton Consultants Pvt Ltd

EPC Contractor:

KPR Projecton Pvt Ltd LHP Indore)

JAM Sustainable Housing LLP (LHP Lucknow)

Mitsumi Housing Pvt Ltd (LHP Agartala)

Steel Fabricator:

Altis Industries Pvt Ltd

Stelloid Infrastructure Pvt Ltd

Struc-Rite Metal Building Systems

S. Pushp Steel Structural Trading Co

Infinity Fabtech Pvt. Ltd

Arman Steelcon Pvt. Ltd

University of the West of England Bristol School of Engineering

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The University of the West of England have recently opened their new School of Engineering building on UWE’s French campus in Bristol. Designed by AHR Architects and built by BAM Construction, the new academic building houses 1600 students and delivers state of the art teaching and research facilities. The building is organised around a large central atrium bringing natural light into the building and providing a central hub for students to work collaboratively, designing, making, assembling and testing their products. The lower levels house the heavy engineering workshops and laboratories, such as automotive engineering, manual and mechanical workshops and the concrete workshop. Lecture theatres and general teaching spaces share the higher levels with such disciplines as physics, electronics and mechatronics. There are also administrative rooms and many private study areas and meeting rooms along with open study space on several levels. Client: University of the West of England (UWE). Architect: AHR Architects. Main Contractor: BAM Construct UK. Structural Engineers: Hydrock. M&E: Highadmit Projects. Roofing and cladding: Sage. Cost Consultant: Mace. Project Management: Capita. Internal glazing: Lusso. Cladding: Corten cladding

The structure is designed to support the coming generation of engineers as it aims to break down boundaries between engineering disciplines enabling greater collaborations and attracting students from wider cross-section of the society. Set over three floors and 8,500m2, the building features teaching studios, simulation suites, laboratories, and specialist workshops accommodating a wide range of subjects.

The brief recognised the value of ‘Social Learning’ spaces outside of traditional teaching to encourage collaboration. A significant design constraint was the spatial and servicing requirements of over 20 different labs and workshops – AHR’s response was to stack the accommodation based on practical requirements: heavy workshops and ‘maker’ space on the ground floor; specialist laboratories on the first floor; and lighter labs and offices on the top floor.

The brief recognised the value of ‘Social Learning’ spaces outside of traditional teaching to encourage collaboration. A significant design constraint was the spatial and servicing requirements of over 20 different labs and workshops – AHR’s response was to stack the accommodation based on practical requirements: heavy workshops and ‘maker’ space on the ground floor; specialist laboratories on the first floor; and lighter labs and offices on the top floor.

The atrium is topped by a dramatic 1000m2 timber-framed north-light roof which encloses practical ‘maker space’ (ground floor), collaborative workspace (first floor), and quiet study spaces overlooking activity below (second floor). Distinctive Corten steel cladding creates a bold presence at the heart of the UWE campus masterplan. The open colonnade faces the main thoroughfare and provides a welcoming threshold into the building. The design is very flexible to change over a long lifespan and a strict structural grid was adopted. Elevations follow a 1m module with vertically banded windows allowing maximum flexibility to relocate internal walls.

Services follow a ‘ring main’ around the atrium edge feeding off to perimeter rooms, all intended to provide maximum building lifespan. The project was delivered on a live site and to an ambitious timescale, opening to students exactly three years after design work commenced, with the final eight months during the peak of the first wave of Covid-19. While occupancy was limited during the first year, the spaciousness and natural ventilation strategy has enabled staff and students to make use of the building throughout the pandemic.

The University has targeted carbon neutral by 2030. The brief included BREEAM Excellent, with a focus on operational energy and a DEC B operational energy rating. The building is designed for long-term adaptability with an efficient structural grid. Corten steel cladding requires no maintenance and windows were selected that would exceed 60-year lifespan. The 1000m2 atrium roof is glu-lam and CLT which has offset 125t of carbon. This highly serviced building performs extremely well against the RIBA 2025 climate targets and through robust design strategies will provide exceptionally long life with minimum barriers to adaptation and change.

The Rise of the Golden Bird

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This special section covers an out-of-the-box design with steel as an essential element of the design. The main aim of this section is to showcase how steel can be innovatively used in today’s world of architecture.

Here’s Ar Bhupendra Kumar, Founder, Aeiforia Architects unveiling their out-of-the-box design, that ought to turn the tables in the future…

India is always known for its contribution in all possible fields whether it’s economy, culture, science, mathematics, or space. This rich pure and powerful character of INDIA is the thought and soul of the sculpture to be known as, “THE RISE OF GOLDEN BIRD”. The left part of the structure depicts the ancient INDIA, and the right part of the structure depicts the modern and rising INDIA.

Features

The feathers shall only be having a symbol, well embossed within its curve. This symbol is to be supplemented with a QR code. Scanning the QR code shall lead the visitor to the web page, defining the accomplishment with all due facts and figures. Hence shall keep the engagement of visitors.

The placement of feathers is done in such a way that not only provides interesting facts about India to the visitors but also protects them from the sun and rains. The feathers are marked in the shape of a lotus leaf, that’s the symbol adopted by all religions and is the metaphor for equality in India.

Rings and Feathers

  • The sparkling chrome skeleton of the bird is complemented with golden feathers.
  • Feathers are modular in nature.
  • Each feather marks one different contribution of India to the world.
  • Feathers on the Left-wing define glorious history, whereas right-wing feathers are showcasing modern contributions.
  • Part Space is filled with a generalised designer feather to be replaced with future achievements.
  • The central vista is having a single golden feather that displays the most recent win.

Sun Dial

It’s complemented with a sundial symbolising time in front of the beak of the sculpture.

Shadow Analysis

The structure is oriented North-South, to add a play of sun and shade, symbolising growth with the time.

The structure has a low footprint, and it covers 7 per cent of the site rest is the green landscape for infiltration of water and carbon sinks

Zero Energy Structure

The sculpture will be lit by solar-powered yellow lights (color temp 3000K), to sing its golden saga.

Why Steel

This sculpture poses a counter-question to answer this question, why Sone ki chiriya?

Sona” means, gold, that money, and in turn economy. The steel industry has played a very significant role in the rise of the Indian economy, whether it’s the golden past or the shining present. Steel is ahead of most of the other products. The reports from PWC show very encouraging growth in the steel industry.

Tales – J N KHATANIAR

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Talking About Life’s Engineering Saga (TALES)’ is a segment that exclusively focuses on the top Structural Consultants across the globe sharing their engineering journey in their own words. We have –. J.N. KHATANIAR – sharing his deep knowledge with us…

A consultant who believes RCC structures can’t be stand-alone without the help of steel sections…but steel sections can stand alone with a smiling face without use or in combination with concrete, an outdated concept of the modern construction practice.

J N KHATANIAR, SENIOR TECHNICAL CONSULTANT, SRISHTIE is here to share his wonderful journey with us…

INSPIRATION…

My father is an electrical engineer from the Jadavpur engineering college. In our family all are engineers. I oriented and learned many things from my father. Finally, I wanted to become a civil engineer. A combination of lines and curves has so many calculations and imagination to create a safe and beautiful structure. I believe “civil engineers are builders of quality of life”. So, my father was my inspiration to be an engineer.

LEARNING CURVE FROM STUDENT TO PRO…

It can’t be explained with words as it was excellent, memorable from the day of my joining as an engineering student in my college at Assam engineering college (1072-1977) and finally working as an engineer officer in Assam state electricity board during the year 1978 to 1996 and after that in professional life as civil engineering consultant through my firm “Srishtie” established in the year 1997 at Guwahati and still offering honest technical services to everyone as my social responsibilities.

CHALLENGES…

There are many challenges in the structural engineering field. All the seven states in the northeast of our country fall under very high seismic zone v, country’s number 1, and India is one of the 6th most severe earthquake-prone zones as per the Global Seismic Map.

So, all structures we are planning and designing to be healthy enough and seismic-resistant, which is a most challenging job for all professionals working in this region from a structural safety point of view.

USAGE OF PARALLEL FLANGE BEAMS…

It is most useful due to its exceptional properties and demand and the requirements at construction sites.

CHANGE TO WITNESS…

Introduction of Pre-Engineered Steel (PEB) frame structures may be by using the readily available steel sections or by using light gauge steel frame structures (LGFS) by replacing outdated RCC structures.

These are not-at-all green by nature and are time-consuming + cost + not behave well during the sudden shaking of the earth during the earthquakes in comparison to the pre-engineered buildings (PEB) steel frame structures.

AFFAIR WITH STEEL…

Without any relationship with steel, the civil engineering subject will be incomplete. In RCC building structures which we are still adopting though outdated as of date, are a combination of steel and concrete.

If we considered the structures as human beings, steel reinforcements act as the skeleton made up of bones and concrete is acting as our muscles. So, without our skeleton means bones, we can even stand on this beautiful earth. Steel frame structures are also incomparable to RCC frame structures to be safe and perfect in all respect during earthquakes.

BEST STEEL WORK…

In addition to all the RCC structures to date, I believe my best work on a date is the introduction of a truss-less roofing system in some particular frame building structures where we need more headroom, where we need steel sheets from 0.80mm to 1.30mm thickness which I am applying in so many structures like pavilion buildings and indoor stadium structures in 32 sports complexes under construction as signature projects under PWD.

INTERNATIONAL PROJECT THAT STRIKES A CHORD…

The damaged world trade Center in the USA by the extremists a few years back, the reasons behind are we had learned so many engineering aspects and deficiencies, from that, an unexpected incident.

UPGRADING WITH CHANGING TIMES…

As per the flow of the modern innovations and creations and all the scientific trends related to the overall developments of the construction practices.

Conclusion remarks:

RCC structures can’t be stand-alone without the help of steel sections…but steel sections can stand alone with smiling face without use or in combination with concrete, an outdated concept of the modern construction practice.”

QUICK FACTS

You’re college name: Assam engineering college Jalukbari Guwahati.

Total Years of Experience: 44 years

Your idol/mentor: My all teachers and the experts in the field of civil engineering

You’re mantra of success: Honesty and Dedication.

You want to be remembered as Simple and high thinking honest civil engineer working for the benefit of the society

Steel projects you are currently working on So many projects by replacing the conventional outdated RCC construction practices.

STEEL ENHANCES POSSIBILITIES

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Steel can go as far as our imaginations go, the possibilities are limitless, and its strength and durability make it a ‘state-of-the-art material. Steel gives architects the freedom to design extra ambitious projects. It has the potential to integrate seamlessly with any other material, and express AR. JAYAKANTH JK & NAMDEV TALLURU, AN INDEPENDENT COLLABORATION

Q. What are the major advantages of using steel vis-à-vis conventional materials?

A. Steel gives architects the freedom to design extra ambitious projects. It has the potential to integrate seamlessly with any other material. Steel even when left unfinished gives an industrial and modern aesthetic as opposed to other construction materials. 

Q. How can structural steel be innovatively used in construction to provide design aesthetics and at the same time offer economical solutions?

A. As steel structures are prefabricated, it is easier to have precise control over the design and desired outcome. In the current times, speed is an imperative factor that is very well addressed by steel and prefabricated construction systems. It is, at least in my opinion, more economical, if one considers the amount of time it saves.

Steel can go as far as our imaginations go, the possibilities are limitless, and the strength and durability make it a ‘state-of-the-art material. The range of grades and sizes available in steel gives architects and designers the flexibility to think creatively and execute projects with ease. 

Q. What is your take on the variety of sections/grades provided by our steel producers for various demands of creativity?

A. Modern technology has led to the production of custom-made steel sections which can be tailored for each unique design. Even a single project can utilize a variety of different components in a diverse area of the structure. This allows designers to explore more in terms of design and removes the shackles to structurally constrain a building design.

I think it is important for architects and manufacturers to work closely. Enabling the architects to keep themselves updated about new grades and sections and their possibilities. Also enables the manufacturers and engineers to truly witness the possibilities of the materials through architects and understand their needs better.

Q. What trend are we going to witness in the next 5-7 years, as far as designing structures with steel is concerned?

A. Earlier, steel just played an auxiliary role in the construction industry. It was utilized to bear loads and glue together joineries. But in the last decade steel has introduced a wide range of possibilities to the field of architecture. It paved the way for a lot of innovative architectural structures. Acclaimed architects such as Zaha Hadid, and Frank Gehry have broken down the idea of using steel as merely a building’s skeleton and have instead designed innovative and surprisingly fluid structures that pay homage to the material itself.

Steel structures have also accelerated the growth of the design industry. Now steel has become the backbone of the construction field and is extremely crucial for the development of the industry. With the rapidly growing technology and prefabrication becoming the new future, steel will play a vital role in the construction field soon.

Q. What should be the strategy of the industry in promoting structural steel construction in India?

A. I think it is important to gain the attention of the public. Everyone needs to understand the possibilities of structural steel. We must create iconic architecture projects and installation designs that display the potential of structural steel. 

Q. Which are the iconic steel-specific projects executed by you?

A. ‘Billion Impressions’ is our prized project and the winning entry for TATA steel’s Notions of India – an international design competition to create an iconic outdoor symbol of India. The overall dimensions are 7.8 m X 7 m X 11.5 m and it consists of two connected parts, back to back. Using YST355 circular hollow sections offered by TATA Structura is a very smart option, which resulted in a lightweight, budget-friendly, and structurally sound sculpture. The sculpture is a free-standing cantilever structure. However, having the two parts of the structure connected, played a great role in controlling the deflection and smartly modified the behavior bringing it a bit towards a frame. The overall structure was however studied as a cantilever, conservatively.

The sculpture aims to be timeless. The ambitious structural endeavor never lost sight of the project’s greater goal as an iconic sculpture that brings people together. The project is coming soon in a bustling neighborhood in Ranchi, Jharkhand, India. We hope to build the sculpture in multiple cities across the

Qaammat Pavilion, Greenland

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Located in Sarfannguit, a cultural landscape in West Greenland and a UNESCO World Heritage site since 2018, the Qaammat pavilion by Konstantin Ikonomidis is designed to celebrate and promote the Inuit intangible cultural heritage and traditional knowledge of the environment.

Characterized by the two fjords that meet on Sarfannguit’s eastern tip on the hills, the pavilion’s location has been carefully chosen by the local community, UNESCO site manager Paninnguaq Fleischer-Lyberth and the commissioned architect Konstantin Ikonomidis for its impressive view over the Sarfannguit municipality. Set on the planned trail between Sarfannguit and Nipisat, this site-specific installation will serve as a landmark and a gathering point and dissemination site in Sarfannguit, where the World Heritage site’s beautiful surroundings can be experienced by locals and visitors to the village.

The Qaammat pavilion is designed as a poetic and aesthetic object, but most importantly as a symbolic gesture acknowledging the natural site and rich history, the distinctiveness of the Greenlandic culture, and the spiritual sensibilities rooted in Sarfannguit. Attached to the upper part of the metal poles is a custom-made stainless steel bracket with a circular geometry. The metal bar is fully horizontal and the poles vary in length according to the terrain. The curving walls, constructed in glass blocks, form a linear pathway open at both ends, which serves as the entrance to the pavilion.

The design draws inspiration from the moon and the Arctic light in combination with the snow’s reflections. An important part of the design phase was site-specific research by Konstantin Ikonomidis. Following his earlier work and research on the subject of home, Konstantin focused on his interest in integrating landscape, culture, and human stories into the design. Marked by encounters, conversations, and interviews with the locals, the architect intends to reflect these experiences, stories, and myths poetically in the design of the pavilion.

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