- Site Visit to Survey of India
- Site Visit to Infosys New Building in Electronics City 2018
A site visit to the New Building of Infosys was organised by the department of Civil Engineering under the guidance of M/s. Sobha Developers Ltd. on Tuesday, 10th July,2018 to provide an exposure on construction of foundation, building materials, method of constructions, and reinforcement cement concrete design to the 5th semester BTech students.
The new ongoing building of Infosys located at Electronics City is a building of 3 basement floors + ground floor and 9 upper floors (3BF+GF+9UF). In the proposed building the superstructureproposed is 40m height. Besides, the building is of V-shape. There is another ongoing rectangular building of 3 basement floors plus ground floor and 4 upper floors (3BF+GF+4UF).
The project commenced in May 2018 and it is expected to be completed by December 2019. The cost of the project is INR 600 for a built-up area of 15 lakhs square feet.
During the visit; the students were taken to witness the construction of the footings and demonstrated on how the reinforcements were provided for different structural members, and how the grouting is carried out. Further, the different criteria taken in account for any design were explained.
About the foundation:
Excavation was upto a depth of 10m; majority of footings were isolated footings of size 3m x 1.5m, as the hard strata was found at a considerable depth. The foundation was designed for allowable settlement of 25mm and for a soil capacity of 70 – 80 KN/square meter. Concrete of water-cement ratio of 0.35 to 0.40 was provided by Transit Mixer; and the different procedures followed to check the quality of concrete were explained. The concrete was pumped and needle vibrator was used to achieve the compaction. The grade of concrete used was ranging from M30 to M45 and Fe500 was provided for steel reinforcements. The maximum diameter of bars used was 40mm. A cover of 50mm was provided since footings are in direct contact with soil.
To account for the uplift pressure, due to the higher ground water table, pipes were run below the basement, which would collect ground water and discharge it to an appropriate place.
About the superstructure:
Precast structural members such as beams, walls, slabs and even columns were used. This decreases the project duration time and reduces the cost (transport of materials, hiring of cranes, etc.) by assuring a better control of quality. The process of how those structural members are assembled at site was explained in detail and the importance of grouting which is done with Sika in order to provide monolithic structure(concept of lap joint) and assuring the adequate transmission of loads through structural members were thoroughly explained. The highest grade of concrete used was M60 and a cover of 20mm was provided.
The building will be a Platinum rated green building with a particular shape (V-shape) in order to account for ventilation and self-lighting halls.
To conclude, this was a very interactive moment where we could relate various concepts acquired in class to the practical knowledge in the field. This new bridge to the real-life project will help us to link with the various concepts discussed in class especially in Foundation Engineering, RCC Design and Structural Analysis.
Construction site of Infosys new building at Electronic city, Bengaluru
Site Engineer explaining different stages of foundation
5BTCI students with the project manager and faculties
Students observing the arrangement of precast beams and columns
- Visit to SOBHA Glazing and Metal works Industry 2018
On the of 10th July, 2018; students from 5th semester BTech in Civil Engineering had a privilege to visit the Department of Manufacturing- Glazing and Metal Works – of M/s.Sobha Developers Ltd. situated at, Electronics city, Bengalure as part of their extra-curriculum activities.
M/s, SOBHA Glazing and Metal Works is the metal working and façade glazing division of M/s. Sobha Developers Ltd. which has an enviable portfolio of projects across industries, especiallyin Information Technology and Residential sectors. Established in the year 2000, the division is well-equipped with a state-of-art manufacturing unit in Bengaluru, India, with one lakh sq. ft area.
All products are crafted to perfection having undergone stringent quality tests. They include aluminium doors, windows, structural glazing, aluminium composite panels, Structural Steel (SS) cladding, architectural metal works and pre-engineered buildings.
During the visit, students got the opportunity to wittness how aluminium doors and windows were manufactured, the process which different structural metal members undergo, why the material aluminium as against other materials and the importance of Glass as anglazing building material.
Mr. Varghese, CEO of M/s. Sobha glazing and metal works industry explaining about the beams and bending moments
Students and faculty at the manufacturing unit
Students observing the process of fixing glass to the frame by using silica gel
Mr. Varghese, CEO explaining about different metal frames to civil students