（1 华东建筑集团股份有限公司， 上海 200011； 2 宝业集团股份有限公司， 上海 200335；3 上海交通大学船舶海洋与建筑工程学院， 上海 200240； 4 上海装配式建筑技术集成工程技术研究中心， 上海 200011）

［摘要］考虑混凝土强度、钢筋与预制板内表面间距、钢筋粘结长度、钢筋直径和钢筋位置5个参数，对双面叠合装配式剪力墙竖向连接钢筋的锚固性能进行了静力拉拔试验研究。通过试件破坏形态、粘结应力-滑移曲线分析了竖向连接钢筋的粘结滑移破坏机理，并探索了不同参数试件的粘结强度变化规律。结果表明，从静力试验的角度来看，双面叠合剪力墙竖向连接钢筋的锚固粘结强度变化规律与现浇钢筋混凝土构件中的情况基本一致，锚固长度按现行《混凝土结构设计规范》（GB 50010—2010）规定的取值是可行的。

［关键词］双面叠合剪力墙； 竖向连接钢筋； 粘结强度； 破坏机理； 粘结-滑移曲线

中图分类号：TU375文献标识码：A文章编号：1002-848X(2017)12-0095-07

Static experimental study on bond-anchorage performance of vertical connection steel bar in double-sided superimposed prefabricated shear wall

Cui Jiachun1, Fan Hua2, Wang Chunjiang3, Xin Liting3

(1 Arcplus Group PLC, Shanghai 200011, China; 2 Baoye Group Company Limited, Shanghai 200335, China; 3 School of Naval Architecture, Ocean and Civil Engineering, Shanghai Jiao Tong University, Shanghai 200240, China; 4 Shanghai Engineering Research Center of Assembly Building Technology Integration, Shanghai 200011, China)

Abstract:Static pull-out test on anchorage performance of vertical connecting rebar used in the double-sided superimposed prefabricated shear wall was carried out considering 5 parameters including concrete strength, distance bewteen rebar and inner surface of precast slab, bond length of rebar, diameter and the position of the rebar. Based on the failure mode and bond stress-slippage curve of the specimens, the failure mechanism of the bond-slip behavior was analyzed and the variation law of the bond strength of specimens with different parameters was explored. The results show that the bond anchorage performance and bond strength of the vertical connecting rebars in the double-sided superimposed prefabricated shear wall essentially in agreement with those of the cast-in-place reinforced concrete members from the perspective of static test and analysis. It is feasible to decide anchorage length according to the current Code for design of concrete structures (GB 50010—2010).

Keywords:double-sided superimposed shear wall; vertical connecting rebar; bond strength; failure mechanism; bond-slip curve

*上海市青年科技启明星计划资助（17QB1400200）。

作者简介：崔家春，博士，高级工程师，Email: jch_cui@163.com。