后张无粘结预应力装配式短肢剪力墙设计及建模  

Design and Model Setting of Unbonded Post-tensioned Hybrid Wall

作　　者：孙巍巍[1] 孟少平[2] 

机构地区：[1]南京理工大学土木工程系,210094 [2]东南大学RC/PC结构教育部重点实验室,南京210096

出　　处：《特种结构》2008年第1期25-27,共3页Special Structures

基　　金：江苏省自然科学基金(BK2001-011)

摘　　要：介绍了PRESSS(预制抗震结构体系)研究计划中不同于传统的现浇混凝土湿性连接的干性连接方式,并利用其中的后张无阻尼方式提出了一种新型后张无粘结预应力装配式剪力墙。新型剪力墙中因采用了干性连接,具有了自恢复能力,即最终的残余变形很小。确定新型装配式剪力墙的设计方法并通过合理的假定提出了设计模型。利用非线性有限元软件DRAIN-2DX中的桁架单元及纤维单元建立了后张无粘结预应力装配式短肢剪力墙的非线性有限元模型,并通过其验证了设计模型的合理性。＂Dry＂ connection, which is different from ＂Wet＂ connection used by cast in place concrete, investigated by PRESSS （ PREcast Seismic Structral Systems ） program, is introduced and a new type of un]3onded post-tensioned hybrid wall is proposed using the concept of post-tensioned without damping in ＂Dry＂ connections. The new type of hybrid wall is possessed of the ability of self recovery by using the ＂Dry＂ connection, i. e. , the residual deformation is little. The design methods of shear wall is provided and the design model is presented through some reasonable assumptions. The nonlinear finite element model is established using truss elements and fiber elements of DRAIN2DX. The design model is validated by the nonlinear finite element model.

关 键 词：短肢剪力墙 干性连接 无粘结 后张预应力 预应力 

分 类 号：TU398.2[建筑科学—结构工程]