实腹式型钢高强混凝土柱剪切粘结破坏承载力计算  

Shear Bond Failure Capacity of Solid-websteel Reinforced High-strength Concrete Columns

作　　者：陈涛[1,2] 肖从真[1,2] 

机构地区：[1]中国建筑科学研究院,北京100013 [2]建筑安全与环境国家重点实验室,北京100013

出　　处：《建筑科学》2016年第3期1-6,共6页Building Science

基　　金：国家自然科学基金(51578522)

摘　　要：实腹式型钢混凝土(SRC)柱剪切破坏包括剪切斜压破坏和剪切粘结破坏两种破坏模式,因剪切粘结破坏机理复杂、其影响因素较多,目前缺乏较为准确的剪切粘结破坏承载力计算方法。本文在分析已有剪切粘结破坏承载力计算方法的基础上,结合试验研究,提出了一种新的剪切粘结破坏承载力计算方法。采用文献中42个型钢高强混凝土柱压剪试件的试验结果,对日本标准、我国标准、本文建议方法的计算结果进行了分析对比。结果表明,本文建议方法对型钢高强混凝土柱剪切粘结破坏的判别以及对压剪承载力的估计较为准确,有很好的工程应用价值。Two types of shear failure exist in solid-web steel reinforced concrete（ SRC） columns： diagonal shear and shear bond failures. Due to complex mechanism of shear bond failure,it is difficult to estimate the shear bond failure capacity,and few calculationmethods can be found in design codes. Based on previous calculation methods of shear bond failurecapacity and experimental studies,a new calculation method of shear bond failure capacity is given in this paper. Using test results of 42 specimens with reinforced steel high-strength concrete,the shear bond failure capacities calculated by Japanese Code,Chinese Codes,and the new calculation method given by this paper are evaluated. The results show that the new calculation method is more accurate than Japanese code for estimation of shear bond failure and its capacity. It provides a practical references in engineerings.

关 键 词：型钢混凝土 剪切粘结破坏 剪切斜压破坏 受剪承载力 压剪承载力 

分 类 号：TU312[建筑科学—结构工程]