钢纤维钢筋混凝土无粘结部分预应力扁梁柱节点设计方法的研究  

A NEW DESIGN METHOD FOR THE FLAT BEAM-COLUMN JOINTS

作　　者：季韬[1] 钱在兹[2] 鄢飞 

机构地区：[1]福州大学土木建筑学院 [2]浙江大学 [3]福建省建委

出　　处：《土木工程学报》2001年第4期61-71,共11页China Civil Engineering Journal

基　　金：高等学校博士学科点专项科研基金资助课题

摘　　要：在四个扁梁柱节点试验的基础上 ,本文通过理论推导 ,得到一套考虑节点内、外核心区内的钢纤维和扁梁中配有的无粘结预应力筋作用的扁梁柱节点内、外核心区的设计方法 ;该方法充分利用了节点内、外核心区混凝土的强度 ,正确考虑了柱轴压力的作用 ,仔细检查了节点的竖向抗剪能力 ;所提出的设计方法的可靠性得到试验数据的验证。A new method for designing the interior and exterior cores of the steel fiber reinforced concrete(SFRC)unbonded partially prestressed flat beam and column joints. It was based on the test of four flat beam?column joints and the theoretical researches. The effects of the steel fiber mixed in the core concrete and the unbonded prestressed tendons placed in the flat beam were considered. The concrete strength of joints was fully used and the effects of axial loads in the columns and the flat beams were involved correctly in the new design method. Vertical shear resistance capability of the joints was also checked. The reliability of the proposed method is verified by the test data.

关 键 词：钢纤维混凝土 无粘结部分预应力 扁梁柱节点 

分 类 号：TU528.572[建筑科学—建筑技术科学]