柱脚锚栓的抗拉设计
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（同济大学，上海 200092）[摘要]通过比较分析中美规范关于锚栓在混凝土中抗拉设计的方法，介绍了锚栓在混凝土中的各种破坏形态和对应的承载力计算方法，为了充分利用锚栓的抗拉强度同时又避免混凝土的崩裂破坏而导致锚栓被拉出，本文给出了通过利用基础混凝土短柱中的竖向钢筋或者额外配置受拉钢筋的方法来传递锚栓拉力而避免混凝土崩裂破坏的方法。[关键词]柱脚锚栓;抗拉强度;ACI规范;崩裂破坏;拔出破坏中图分类号：TU391 文献标识码：A 文章编号：1002-848X(2013)S1-0436-03Anchor bolts design for tension forceWu Guifang(Tongji University, Shanghai 200092, China)Abstract: By comparing the anchor bolts design for tension force between Chinese code and American code, the various types of steel and concrete failure modes for anchor bolts are presented, and the tension capacity for each anchor bolt failure mode is introduced. In order to avoid concrete breakout prior to anchor bolt steel failure, this paper provide a method to using the vertical reinforcement in concrete pier or add additional reinforcement on both sides of concrete breakout surface to transfer the tension load from anchor bolts.Keywords: anchor bolts; tension capacity; ACI318; concrete breakout; anchor bolt pullout作者简介：吴桂芳，工程师，一级注册结构工程师，Email: guifang.wu@hotmail.com。
