Study of Joint Bearing Capacity With Slope Change on Tower Consist of Steel Tubes　and Angles

doi:10.11930/j.issn.1004-9649.2016.08.031.05

Abstract

Abstract: In order to study joint feature with slope change on tower consist of steel tubes and angles, static full-scale tests on two same size joint with different slope and loading modes are performed. Analysis is carried out on loading process, bearing capacity and failure mode. Both node failure modes are gusset plate buckling in tests indicating that gusset plate is weak area. A three-dimensional solid model of joint with slope change on tower consist of steel tubes and steel angles are built by using finite element software ABAQUS. A parameter analysis is conducted to investigate main factors affecting bearing capacity of joint with slope change. The results show that all failure modes of joint are instability of gusset plate on compression side and gusset plant is weak area. According to parameter analysis result, in a certain range, the bearing capacity increases as gusset plate thickness increased. Every 2 mm increase of gusset plate thickness increases capacity by 5% to 9%. When the thickness is increased to a certain limit, the capacity is improved by 30% and gusset plate is fully utilized.

Key words: tower consist of steel tubes and steel angles, joint with slope change, bearing capacity, gusset plate

CLC Number:

TM753

JU Yanzhong, WANG Haichao, ZHANG Chuchu, WANG Dehong, BAI Junfeng, WANG Xinying. Study of Joint Bearing Capacity With Slope Change on Tower Consist of Steel Tubes　and Angles[J]. Electric Power, 2016, 49(8): 31-35.

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URL: https://www.electricpower.com.cn/EN/10.11930/j.issn.1004-9649.2016.08.031.05

https://www.electricpower.com.cn/EN/Y2016/V49/I8/31

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