高层蜘蛛网式结构大跨度梁后张法预应力施工技术

Post-tensionied Prestressing Construction Technology of Spider Web Shaped Large Span Beam in Tall Building

某工程主楼中心为核心筒结构,南北为2个小体量筒体结构,形成三筒体受力,筒体与筒体、核心筒体与框架柱布置放射形蜘蛛网预应力框架梁结构形式,受力结构对称,大跨度梁采用有黏结后张法预应力施工技术,有效提高建筑净高,重点介绍了预应力施工关键技术。

In some engineering,the center building was the core tube structure,the north and south of the engineering were two small tube structures,three tube structures forced.The radiation shaped spider webs prestressed frame beam structure were formed,the forced structure is symmetrical.The large span beam effectively improves the building height by applying the large span beam bonded prestress construction technology.This paper focuses on the application of the key technology of prestressed construction.