GEM Engserv Pvt. Ltd is an ISO 9001:2015 certified organization, certified by TUV India in accreditation with National Accreditation Board for Certification Bodies (NABCB).

Light Gauge Steel Frame (LGSF) – A new-age technique for rapid construction

Breaking free from labor-intensive traditional methods, Light Gauge Steel technology brings the future of modern housing construction today.
Construction Technology, Housing Construction, LGSF, Light Gauge Steel Frame, Prefabrication, Time Cost Quality
LGSF Live image

Housing is a basic need of human beings and explorations related to housing construction technologies, methods, materials, cost and quality have always been important issues capturing attention of both the constructors and buyers. A long-time objective of the house building industry has been to provide high quality, low-cost homes for quick assembly with a minimum of on-site labour.

In the context of India, at the time of independence, the traditional and most common type of building construction was load-bearing type of structure using brick or stone masonry. With the advancement in concrete technology, the load bearing masonry was replaced by R.C.C. framed construction. The walls continued to be made using brick masonry. Use of structural steel in framed construction was limited to commercial structures and in specials cases, mostly due to the high cost of construction. Use of bricks in the wall was gradually replaced by concrete blocks (both solid and hollow) and more recently Autoclaved Aerated Concrete (AAC) blocks. Use of Aluminium formwork (commonly known as Mivan form) created a structure which uses concrete both as a structural frame and in walls. The Mivan technology has gained popularity in high rise construction which permits a large number of repetitive uses of the costly formwork.

Does LGSF adequately balance the trade-off between time and cost of project?

All these types of construction involve considerable work at site which is highly labour intensive. In mass housing projects, the time take for construction plays an important role in the financing cost of the project. Construction professionals have therefore been on the look out for technological solutions which fulfil the time-cost-quality triad that we often hear in the context of successful project management.

Amongst a variety of technological alternatives, use of Light gauge Structural Steel Frame (LGSF) is a promising alternative. As the name suggests, LGSF technology involves use of structural steel elements made from thin sheets (light gauge). The structural elements can be easily screwed or nailed together to create any complex skeleton/frame of the structure. The LGSF technology has the following components:

  • A skeleton of light gauge structural steel elements.
  • Skin – it can comprise of a steel mesh with cement-based plaster / any one of a variety of boards such as cement fibre board, Aluminium silicate board or Gypsum board.
  • Infill – The space between the skin cane be empty as in a dry or lightweight concrete. The lightweight concrete can be either foam concrete or concrete made with EPS beads.
  • Finished surface- Over the skin the finish can be gypsum plaster and paint

Thus, except for the skeleton or the frame, a number of permutations are available to suit the budget, speed of construction and availability of materials locally.

LGSF Live image

What key benefits does LGSF offer in terms of time, cost, quality and safety?

This system offers the following advantages over the conventional RCC beam-column-slab system or RCC wall-slab system:

  1. Most of the structural components such as LGS members, connectors and steel mesh are produced in a factory on a large scale and easy to package & ship pallets.
  2. The construction site does not need to bind steel bars, support and demolish forms, which greatly reduces need of skilled manpower.
  3. It saves materials and energy, save labour, reduce management costs and speeds up the construction.
  4. Since much of work is done off-site, it is far easier to achieve superior construction quality. Even millimetric tolerances can be achieved in civil Engineering structures!!!
  5. There is no need for the site Engineers to read multiple complex drawings. All framing plans and details are developed prior to manufacturing the LGS components and elemental drawings are easy to read.
  6. The integrity of the building structure is good, and the seismic performance is also good.
  7. It is easy to deliver structure having complex shapes and variety.
  8. It does not require heavy lifting equipment as most elements/pallets can be configured to weigh less than 200 Kgs.

"LGSF technique has some very specific use cases which limits its adoption. More importantly, for this technique to be extensively utilised, the construction industry (consultants, contractors and suppliers) needs to value speed over cost."

While this technology has been well established in China, where it has been used to construct multi-story structures, its use in India is relatively less known. Dry wall technology It has immense potential to be adopted in the following structures / situations:

  1. Construction of standalone structures villas, bungalows, sample flats, show rooms.
  2. Construction of walls as a replacement of convention masonry walls made of AAC / concrete blocks or bricks in an RCC framed structures.
  3. Construction of light weight structural slabs in projects where due to enhanced FSI, while the height of the building is allowed to be increased, but the there isn’t enough margin in the structural / foundation design to accept conventional normal weight RCC slabs.
  4. Mid-height structure (as a replacement of conventional RCC beam-column-slab structure)

We at Gem Engserv have experimented with LGS technology and have the confidence to add value to any project that plans to deploy this technology.

Liked Reading this Article? Check out below some more similar content..

What is not on paper has not been said, and no more so than in projects. Discover how digital document management augments project management by improving efficiency and collaboration, learn best practices for seamless implementation and future trends.
Most successful firms no longer do everything in-house. Explore how you can enhance your output with a laser-focused collaboration strategy
Does each project go through the same stages of Initiation, Planning, Design, Construction and Closeout? This article explores ways in which projects vary significantly from one sector to another.
A project management process generally includes four phases: initiating, planning, executing, and closing. Dive deeper to understand the roles and key traits of the "Specialist Construction Manager" vs the "Versatile Project Manager".
PMCs are always asked to take full ownership of projects, but is this a risky move? With the right approach, PMCs can successfully navigate the challenges of owning a project and delivering successful outcomes.
Most projects struggle on time due to this simple oversight in the early stages. Did you have a similar experience?

Liked Reading this Article? Check out below some more similar content..

What is not on paper has not been said, and no more so than in projects. Discover how digital document management augments project management by improving efficiency and collaboration, learn best practices for seamless implementation and future trends.
Most successful firms no longer do everything in-house. Explore how you can enhance your output with a laser-focused collaboration strategy
Does each project go through the same stages of Initiation, Planning, Design, Construction and Closeout? This article explores ways in which projects vary significantly from one sector to another.
A project management process generally includes four phases: initiating, planning, executing, and closing. Dive deeper to understand the roles and key traits of the "Specialist Construction Manager" vs the "Versatile Project Manager".
PMCs are always asked to take full ownership of projects, but is this a risky move? With the right approach, PMCs can successfully navigate the challenges of owning a project and delivering successful outcomes.
Most projects struggle on time due to this simple oversight in the early stages. Did you have a similar experience?