摘要
梁板无粘结预应力筋穿过框架柱截面较多时,对框架柱承载能力是否有不利影响是设计人员担心的问题。文章对5个带有孔道和1个没有孔道的混凝土梁柱节点试件进行轴心受压状态下的极限承载能力的对比试验,试验结果表明,当孔道面积超过梁柱截面的29%时,在轴心受压状态下,截面消弱对框架梁柱节点的极限承载能力有一定的影响。
The influence of the ducts for tendons or strands weakening the section of frame column is a question in the PPC design. A contrast experimental research of five beam-column joints with two one-way placed ducts and one without any duct is presented .The result shows that there is influence of those ducts to the ultimate bearing capacity of the weakened section of the joint, when the total section area of the ducts is above 29 percent of the cross-section area of column under axes-pressure.
出处
《安徽建筑》
2006年第3期73-74,77,共3页
Anhui Architecture
关键词
梁柱节点
截面消弱
极限承载能力
轴心受压
beam-column joints
weakened section
ultimate bearing capacity
axes-pressure
