超长预应力地下室剪力墙的设计与施工方法

Design and construction of ultra long prestressed basement concrete wall

为了控制混凝土温度收缩,防止混凝土剪力墙出现裂缝,通过分析预应力在地下室墙体结构中的应用情况,在某工程预应力地下室侧墙施工中采用后张无粘结锚固体系,配合后浇带的设置,对后浇带进行了优化设计,提出了防止剪力墙裂缝产生的措施,实践表明所采取的措施减少了裂缝的产生,认为剪力墙不易设置预应力张拉端.

The prestressed shearing force wall design controls the concrete temperature contraction and prevents the concrete from cracking. The prestressed basement spandrel wall chooses the non-caking anchor system to pouring belt establishment. The paper optimizes the design in construction to pouring belt, reduces the working procedure and the cost, at the same time analyzes the application situation of the prestressed basement wall structure, and proposes that the outer walls are not easy to be established in the stretching end.