摘要
进行了l2组试件的拉拔试验,给出了拉拔力与滑移的关系曲线,确定锚固钢筋受力破坏的各个阶段及特征点,通过统计回归提出了粘结强度的统计公式。并采用一次二阶矩法对钢筋在砌块专用砂浆中的锚固长度进行了可靠度分析,进一步验证了砌体结构设计规范给出锚固长度的可靠性。
Based on the pull-out test results of 12 groups of Mortar specimens, load vs. slip curves are gained. Every phase and its characteristic value of failure are determined. As test results, this paper establishes an anchorage strength calculating formula by means of regressive equation and calculates the index of reliability of anchorage length in mortar with JC method. The safety of bar anchorage length is further validated in Reinforced Masonry Structure.
出处
《房材与应用》
2005年第1期5-7,共3页
Housing Materials & Applications
基金
国家十五攻关课题子课题(项目编号:2002BA806B-4)
关键词
配筋砌块砌体
砌块专用砂浆
拉拔试验
粘结强度
锚固长度
reinforced block masonry
mortar used in concrete block masonry
pull-out test
bond strengthen
anchorage length
