Research on Key Joints of 750 kV Concrete Filled Steel Tube Substation Truss Structures

doi:10.11930/j.issn.1004-9649.2016.08.001.06

Electric Power ›› 2016, Vol. 49 ›› Issue (8): 1-6.DOI: 10.11930/j.issn.1004-9649.2016.08.001.06

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Research on Key Joints of 750 kV Concrete Filled Steel Tube Substation Truss Structures

ZHANG Guangping¹, XI Zenghong¹, GONG Liang¹, WANG Shuping¹, YANG Junfen¹, YANG Chao¹

1. China Energy Construction Group Gansu Electric Power Design Institute Co., Ltd., Lanzhou 730050, China;
2. School of Civil Engineering, Xi’an University of Architecture and Technology, Xi’an 710055, China

Received:2016-03-23 Online:2016-08-10 Published:2016-08-12
Contact: This work is supported by the Ministry of Housing and Urban-Rural Development(MOHURD) project(No. 2014-K2-011), the Shaanxi Natural Science Foundation(No. 2014JM7244), the Special Research Foundation (No. 2013JK0977) from the Education Institution of Shaanxi, 2014 Research Project of the SGCC(State Grid Corporation of China) Supporting Innovative Construction and Infrastructure Technologies.

Abstract

Abstract: As a reasonable structure in mechanical properties, the concrete filled steel tube(CFT) structure generally has considerable economic value. To promote construction of CFT structure in 750 kV substation, and provide theoretical basis for construction of the Qiaowan 750 kV substation in Gansu, experiment study on three kinds of key connection joints is performed. Test results show that all joints used in project have high strength reserve and ductility, and the failure form are all satisfied with‘strong connection and weak bar’ design principle. It is can be widely applied in 750 kV CFT substation after summarization on engineering projects.

Key words: concrete filled steel tube (CFT) structure, 750 kV substation truss structures, structural design, key joints, experiment study

CLC Number:

ZHANG Guangping, XI Zenghong, GONG Liang, WANG Shuping, YANG Junfen, YANG Chao. Research on Key Joints of 750 kV Concrete Filled Steel Tube Substation Truss Structures[J]. Electric Power, 2016, 49(8): 1-6.

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Research on Key Joints of 750 kV Concrete Filled Steel Tube Substation Truss Structures

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