摘要
针对装配式钢箱-预应力混凝土组合连续刚构桥的构造特点,提出通过后浇混凝土使桥面板与钢箱梁联结为一体的S-PC(Steel Box-Prefabricated Concrete Deck)剪力键及其构造型式。设计并完成了5个试件的推出试验,研究了S-PC剪力键的受载行为、荷载-滑移规律、破坏形式和破坏现象,依据试验数据和回归理论,提出加载全过程的荷载-滑移关系公式,并利用有限元软件进行了全截面应力的计算模拟。实验结果、推导公式和计算模拟揭示了S-PC剪力键的传力机制和不同部位及方向的应力分布规律,为这种后浇混凝土的S-PC剪力键的研究和应用打下基础。
The S-PC （Steel Box-Prefabricated Concrete Deck） shear conneetor which combines the bridge deck with steel box girder by the way of pouring concrete rear is proposed in allusion to the features （of the construction of Steel Box Prestressed Concrete Composite large-span rigid frame bridge. Several speeimens＂ push-out tests are designed and accomplished. There is a research on the behavior under load conditions, regularity of loading-slipping, faih, re mode and damage Phenomena of S-PC shear connector. The formuhl of tire relationship overall tire loading process between loading and slipping based on the experiment data and regression theory is proposed. The calculation of eross section stress simulation is developed using the finite element software. The experimental restths, derived formulas and computer simulation rexeal the power transmission ,mechanism of S-PC stress distribution of different parts, and provide a foundation of S-PC research and applications.
出处
《实验室研究与探索》
CAS
北大核心
2014年第6期11-15,共5页
Research and Exploration In Laboratory
基金
国家自然科学基金项目(50578168)
重庆市应用开发计划项目(cstc2013yykfB0123)
重庆交通大学山区桥梁与隧道工程国家重点实验室培育基地开放基金项目(CQSLBF-Y13-8)
关键词
剪力键
S-PC剪力键
荷载-滑移
组合结构桥梁
shear cnnnector
S-PC shear conneclor
the relationship between loading and slipping
eompnsite bridge
