建筑钢结构进展2024，Vol.26Issue(4)：70-76,120,8.DOI:10.13969/j.cnki.cn31-1893.2024.04.008
钢塔-组合塔混合结构结合部承载性能试验研究
Experiment on the Bearing Capacity of the Joint for Steel Tower-Composite Tower Hybrid Structure
高晓沛 1张伟 2康福军 3朱尧于 4刘玉擎1
作者信息
- 1. 同济大学土木工程学院,上海 200092
- 2. 中交公路规划设计院有限公司,北京 100007
- 3. 佛山市顺德区工程建设中心,广东佛山 528300
- 4. 中交公路长大桥建设国家工程研究中心有限公司,北京 100088
- 折叠
摘要
Abstract
Aimed at the new joint structure of the steel tower-composite tower hybrid structure,an axial compression test of locally scaled model was carried out,and a nonlinear finite element model was built for comparing with the test results.The ultimate bearing capacity and failure mode of the steel tower-composite tower joint were studied.The strain distribution law of the steel plates and the force distribution law of the studs were evaluated,and a parameter analysis was conducted on the force transfer path and load sharing ratio.Results show that the bearing capacity of the joint meets the design requirements.The failure mode of the joint is the yielding and large out-of-plane deformation of steel plate.The bearing plate is the core force transfer component of the joint section,and increasing the plate thickness can improve the ultimate bearing capacity of the joint and the load transferred by the bearing plate.The plate thickness should be similar to the thickness of the outer wall plate.Studs and perfobond connectors are the key components to ensure the combination of steel and concrete in the joint.The connectors mainly bear vertical shear forces before the steel wall plate yields,and mainly bear tensile forces after the steel wall plate yields.关键词
混合桥塔/结合部/模型试验/传力机理/承载性能Key words
hybrid bridge tower/joint/model test/force transfer mechanism/bearing capacity分类
建筑与水利引用本文复制引用
高晓沛,张伟,康福军,朱尧于,刘玉擎..钢塔-组合塔混合结构结合部承载性能试验研究[J].建筑钢结构进展,2024,26(4):70-76,120,8.
