摘要
对现浇结构中的钢筋锚固的若干问题进行总结与讨论,得出:适当增加锚固段周边的纵筋和箍筋能避免其周围可能出现的局部拉脱现象或开裂;在梁简支端下部钢筋的锚固中,钢筋间距决定了钢筋与混凝土是否形成粘结力较差的"钢筋集团"效应;梁上部和下部钢筋在中间各层端节点(框架边柱)中的锚固中,钢筋水平段和竖直段都应满足相应的锚固长度要求;从构件受力的具体情况来判断"搭接"和"锚固"是一种较为直接可行的方法。
In this paper,some issues about the steel bar anchoring in the cast-in-place structure are discussed. Appropriate to increase the longitudinal bars and the stirrup around the anchorage section,it could avoid the local pulling off and cracking; In the bar anchorage at the bottom of the simply supported beam end,the distance of bars decides whether steel bar and concrete jointly form the steel group effect,which has a poor bonding strength. The steel bar anchorage at the top and bottom of Beam in the end nodes of each layer,the horizontal and vertical section should meet the anchorage length. Distinguishing overlap and anchorage according to the force condition of component is a directly practical method.
作者
黄炎准
HUANG Yanzhun(Fuzhou Architectural Design Institute, Fuzhou 350011)
出处
《福建建筑》
2016年第9期65-67,共3页
Fujian Architecture & Construction
关键词
锚固长度
局部拉脱
钢筋集团效应
搭接
The length of anchorage
Local pulled off
Steel group effect
Overlap
