钢管混凝土双肢边柱双层肩梁受力性能试验研究

门进杰; 张博雅; 兰涛; 秦广冲; 何浩

doi:10.13204/j.gyjzG20082306

钢管混凝土双肢边柱双层肩梁受力性能试验研究

doi: 10.13204/j.gyjzG20082306

门进杰¹,
张博雅¹,
兰涛^1,2, ,,
秦广冲²,
何浩¹

1. 西安建筑科技大学土木工程学院, 西安 710055;
2. 中国船舶重工集团国际工程有限公司, 北京 100021

基金项目:

国家重点研发计划项目（2017YFC0703406）；中国船舶重工集团科技创新与研发项目（I00121L2019）。

详细信息

作者简介:
门进杰,男,1979年出生,博士,教授。

通讯作者:
兰涛,qd_lantao@163.com。

计量
- 文章访问数: 223
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- 被引次数: 0
出版历程
- 收稿日期: 2020-08-23
- 网络出版日期: 2022-01-11

EXPERIMENTAL STUDY ON MECHANICAL PROPERTIES OF DOUBLE-LAYER SHOULDER BEAMS WITH DOUBLE-LIMB SIDE COLUMNS OF CONCRETE-FILLED STEEL TUBES

1. School of Civil Engineering, Xi'an University of Architecture & Technology, Xi'an 710055, China;
2. CSIC International Engineering Co., Ltd., Beijing 100021, China

摘要

摘要: 为了研究钢管混凝土双肢边柱双层肩梁的受力性能，在前期有限元分析的基础上，以中柱内肢在下肩梁的作用位置为主要变量，共设计了3个试件，并对其进行单调加载试验。根据试验结果分析了试件的屈服机制、破坏模式、承载力以及主要部位的受力情况。结果表明：双肢边柱双层肩梁试件屈服是由下肩梁内肢侧腹板的剪切屈服引起的，破坏源于下肩梁内肢侧腹板较大的凸曲变形；构件屈服荷载以下肩梁内肢侧腹板角部测点的屈服和荷载-位移曲线为依据确定；在中柱内肢向外侧偏移的过程中，下肩梁内肢侧剪力减小，试件承载力提高。
- 双层肩梁 /
- 钢管混凝土柱 /
- 承载力分析 /
- 应变分析 /
- 试验研究
Abstract: Based on the previous finite element analysis, the experiment took the position of the middle column on the lower shoulder beam as the main variable, and three specimens were designed to study the mechanical properties of double-layer shoulder beams with double-limb side columns. The monotonic loading test was conducted on the specimens. According to the test results, the yield mechanism, failure mode, bearing capacity and the force of the specimen's main parts were analyzed. The results showed that the yield of the specimen was triggered by the shear yield of inner limb side webs of lower shoulder beams, and the failure was caused by the large convex curvature deformation of inner limb side webs of the lower shoulder beams. In accordance with the yield of the measure points at the corners of inner limb webs of lower shoulder beams and load displacement curves, the yield load values of the members were determined. When the position of the middle column was shifted to the outside, the shear force of inner limbs of the lower shoulder beams decreased, and the bearing capacity of specimens improved.
- double-layer shoulder beam /
- concrete-filled steel tube column /
- bearing capacity analysis /
- strain analysis /
- experimental study

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参考文献(12)

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