International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056 Volume: 11 Issue: 06 | Jun 2024
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p-ISSN: 2395-0072
Effect of Bay Spacing on Optimization of Pre-Engineered Building Rashmi Shankar Pawar 1, Prof. Ganesh C. Jawalkar 2 1 M.Tech student, Dept. of Civil Engineering, N. B. Navale Sinhgad College of Engineering, Solapur, Maharashtra,
India.
2 Professor, Dept. of Civil Engineering, N. B. Navale Sinhgad College of Engineering, Solapur, Maharashtra, India.
---------------------------------------------------------------------***--------------------------------------------------------------------1.1 Literature Review Abstract - This study is conducted to analyze the Effect of Bay Spacing on Pre-Engineered Buildings and comparison of pre-engineered building with conventional building. PEB structure is designed and analyzed for different Bay spacings and the optimum structure is obtained. In first stage, the effect of bay spacing on the structure is checked and the optimum structure is selected. Then the Pre-Engineered Building (PEB) model with optimum Bay Spacing is compared with the Conventional Steel Building (CSB). The results are compared on the basis of Axial Force at Column Base, Steel consumption, Maximum deflection, Maximum Moment at Column Base. From pre-engineered building models, structure with height 9m, roof angle 10° and bay spacing 5m is selected and compared with conventional structure designed using truss members. The results shows that pre-engineered buildings are optimum and steel consumption is reduced by approximately 16%.
Many papers on comparative study of PEB and CSB concepts have been presented in past years, it has been reported that PEB structures are more advantageous than CSB structures in terms of cost effectiveness, quality control, speedy construction and simple erection method. Subodh. S. Patil, (2017) presented the paper “Analysis and Design Of Pre-Engineered Building Of An Industrial Warehouse”. This paper came out with conclusion that the PEB structure can be designed by simple method using IS codes and, It also told us the benefits of PEB structures than other structure. Balamuralikrishnan R,(2019) presented the paper “Comparative Study on Two Storey Car Showroom Using Preengineered Building (PEB) Concept Based on British Standards and Euro Code”. The paper concluded that, As per BS 5950:2000 code analysis, tapered section design was successfully carried out and EN 1993-1-1:2005 code analysis tapered section was not supported by STAAD Pro V8i software and The tapered frames contributes to 40.63% of the total weight in BS mode.
Key Words: Pre- Engineered Building, Conventional Steel Building, Optimisation, Steel Consumption.
1.INTRODUCTION Steel is used as a construction material as it has high tensile strength and ductility. The areas where concrete cannot be used, Steel proves to be beneficiary. Until recent years, Conventional steel buildings with truss were used on large scale. But now-a-days, Pre-Engineered buildings have proved to be a good alternative to the conventional steel buildings. PEB structures are being used as it is having steel sections of reducing weights, better value for money, fast erection rate, flexible fittings, etc. Tapered sections are used in PEB which effects on economy of structure.
V Vishnu Sai,(2021) presented the paper “Structural Performance of Pre Engineered Building: A Comparative Study”. The study concluded that the parameters that affect the structural weight and section sizes are Wind speed and Seismic Zone. India is one of the fastest growing economies, infrastructure development is takin place rapidly. Thus, there is a wide scope for Pre-Engineered Buildings in India for the construction of Metro Stations, Bus stands, Airports, etc. Thus, in India PEB is an upcoming field in construction industry for the rapid infrastructural growth.
The need of PEB optimization is to study the effect of bay spacing variation in the designing of PEB. Important dimensional variables of trusses include the spans and depths of trusses, lengths of specific truss members (especially compression members), spacing of trusses, and transverse purlin spacing. The PEB structure when designed for a particular dimension will have different results when designing factors like Bay spacing, Roof Angle are Varied.
1.2 Effect of Bay Spacing on Economy of Structure The distance between the two consecutive trusses is called as Bay Spacing or Spacing of trusses. The Bay Spacing is obtained by the size of space to be covered by roof. As the spacing increases, the number of trusses may reduce but the cost of purlins increases.
In this paper, we will be studying the effect of Bay Spacing on the PEB structure to obtain the optimum bay spacing to be utilized for achieving economy in the structure.
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