预应力折梁在坡地建筑中的设计与优化  

The Design and Optimization of Prestressed Folded Beam in Buildings on Hillside Fields

作　　者：曹炜 成戎 CAO Wei;CHENG Rong(Tongji Architectural Design(Group)Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《工程技术研究》2023年第20期204-206,共3页Engineering and Technological Research

摘　　要：文章以沈家门第一小学扩建项目的景观步道结构为研究对象,对常见折线型预应力梁进行了分类,归纳了折点对预应力线形的影响和处理方案,并对案例工程中典型的多折梁进行了几何优化,提出了改善双折梁(PXP型)的预应力曲线,在SAP2000模型中对此进行了计算分析,并采用了相应的构造措施,旨在为多折线大角度预应力结构提供一种新的解决方案,为同类型大跨度预应力折梁结构的设计提供参考。Taking the landscape walkway structure of the expansion project of Shenjiamen No.1 Primary School as the research object,this paper classifies common folded prestressed beams,summarizes the influence of the folded point on the prestressed alignment and the treatment scheme,and carries out the geometric optimization of the typical multi-folded beam in the case engineering.The prestressed curve to improve double-folded beam(PXP type)is proposed,the calculation and analysis are carried out in the SAP2000 model,and corresponding structural measures are adopted.It aims to provide a new solution for large-angle prestressed structure with multi-folded lines and provide reference for the design of the same type of large-span prestressed folded beam structure.

关 键 词：预应力结构 混凝土折梁 坡地建筑 结构优化 

分 类 号：TU378.2[建筑科学—结构工程]