Abstract
In order to get a more safety and economic foundation, finite element method was performed for a piled mat cap and piled strip cap by the software of STAAD. Through the finite element analysis, plate distribution region of bending moment and shear stress were researched; meanwhile, considering the compatibility of deformation of element plate, how to chose the design value of plate stress was researched. The result showed that: single plate value is not representative, average of value of 9 plates (3x3 array) is close to the fact. Strip cap is better than mat cap both from the moment value and shear value of plate element in this project; strip cap was recommended due to its remarkable economic benefit.
Highlights
Substation building is an essential facility in the substation, which ensures the reliability of urban power supply
We wanted to optimize the pile cap.So we suggest two schemes to piled raft cap design of substation building
The color nephogram of bending moment showed that only a few moment value of plates reached the maximum value
Summary
Substation building is an essential facility in the substation, which ensures the reliability of urban power supply. The substation building is a fifth-layer concrete frame structure, which is 26.8 meters high. 230kV gantry on the top of substation building , which is 21 meters high. Pile foundation was used in substation building. Pile arrangement and pile cap types were the major work for the engineer designer[1]
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