Prefabricated coupling beam easy to demould and composite coupling beam composed of prefabricated coupling beam easy to demould: Fid-Bau Portal

Prefabricated coupling beam easy to demould and composite coupling beam composed of prefabricated coupling beam easy to demould

HAN WENLONG / XIAO MING / YU YINQUAN

Abstract

The invention provides a prefabricated coupling beam easy to demould and a composite coupling beam composed of the prefabricated coupling beam easy to demould. By changing the shape of a prefabricated coupling beam stirrup or enabling part of the prefabricated coupling beam stirrup not to extend out of the top surface of the prefabricated coupling beam, mutual interference between the prefabricated coupling beam stirrup and a prefabricated coupling beam top mold is reduced, so that top mold demolding in the production stage of the prefabricated coupling beam is facilitated, the production efficiency is improved, damage to a top mold caused by mold removal is reduced, the repeated use frequency of the mold is increased, and the production cost of the prefabricated coupling beam is reduced; and after the number of the prefabricated coupling beam stirrups extending out of the top face of the prefabricated coupling beam is reduced, connecting steel bars are additionally arranged between the prefabricated coupling beam and the horizontal post-cast strip, so that the common working performance of the prefabricated coupling beam and the horizontal post-cast strip is enhanced, and the integrity and the stress performance of the composite coupling beam are guaranteed. According to the prefabricated coupling beam easy to demould, the situation that violent form stripping is needed in the production stage of a traditional prefabricated coupling beam structure can be avoided, damage to a mold caused by form stripping is reduced, the production cost of the prefabricated coupling beam is reduced, and the production quality of the prefabricated coupling beam is improved; and meanwhile, the integrity of a laminated coupling beam composed of the prefabricated coupling beam can be guaranteed through corresponding measures.

一种易拆模预制连梁及其组成的叠合连梁，通过改变预制连梁箍筋形状或部分预制连梁箍筋不伸出预制连梁顶面，减少预制连梁箍筋与预制连梁顶模相互干扰，以便于预制连梁生产阶段顶模拆模，提高生产效率，减少拆模对顶模造成的损坏，提高模具重复使用次数，降低预制连梁生产成本；减少伸出预制连梁顶面的预制连梁箍筋数量后，在预制连梁、水平后浇带之间增设连接钢筋，以增强预制连梁、水平后浇带的共同工作性能，保证叠合连梁的整体性和受力性能。本发明可避免传统预制连梁构造生产阶段需暴力拆模的情况，减少拆模对模具的破坏，减低预制连梁生产成本，改善预制连梁生产质量，同时可通过相应措施保证本发明预制连梁组成的叠合连梁的整体性。

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