Abstract

In this paper, a prefabricated structure is used to study the main transformer firewall with truss structure of the substation. The beams, columns and wall panels of the firewall are prefabricated components, and the cast-in-place structure is used only at the top beam and column joints.

Highlights

  • With the development of construction technology and the continuous improvement of safety, environmental protection and energy saving requirements of engineering construction, the new construction of buildings has become a trend

  • In 2016, the Chinese State Council set a goal of making prefab buildings account for 30% of new floor space within 10 years or so.[1]

  • The main transformer firewall of a 500kV substation is taken as the object to study a prefabricated firewall technology that bears the load of the framework

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Summary

Introduction

With the development of construction technology and the continuous improvement of safety, environmental protection and energy saving requirements of engineering construction, the new construction of buildings has become a trend. During the construction of the conventional firewall structure of the frame masonry in the substation, the amount of scaffolding and formwork is large, the construction period is long, the construction area is large, and the influence on the surrounding environment is great. The main transformer firewall of a 500kV substation is taken as the object to study a prefabricated firewall technology that bears the load of the framework. The framework and the firewall are set on the top of the firewall, and the wall adopts the prefabricated structure。

The Size of the Main Transformer Firewall
The Precast Column
The Connection of Column and Foundation
Foundation beam
Top beam
The wall board
Computational Modeling
Frame Internal Forces
Comparison With Conventional Firewall
Construction Scheme
Findings
Conclusion

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