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框架填充墙拉结筋采用化学植筋要做拉拔试验吗？有标准依据吗？ - 工程施工 - 项目管理 - 氿上知道
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满意答案
a、设备可选用拉拔仪、X－Y记录仪和电子荷载位移测量仪等。
b、拉拔承载力现场非破坏性检验可采用随时抽样办法取样，同规格、同型号基本相同部位的锚筋组成一个检验批，抽取数量按每批锚筋总数的1‰且不少于3根。
c、拉拔检验可选用两种加荷制度：
（1） 连续加载：以均速加载至设定荷载或锚固破坏，总加荷时间为2－3min。
（2） 分级加载：以预计极限荷载的10％为一级，逐级加荷，每级荷载保持1 －2min至设定荷载或锚固破坏。
d、非破性检验荷载检验值取0.9Asfyk及0.8Rk，c计算之较小值，以混凝土基材无裂缝，植筋无滑移等，宏观裂损现象，且2min持荷期间荷载降低不大于5％时为合格，当非破坏性检验不合格时，另抽不少于3个植筋作破坏性试验，极限抗拔力满足下列规定为合格：
NCRm≥[yu]Nsd
NCRMin≥NRK,
逸夫的善良
回答于：2014-01-14
共3条回答