北京地铁复-八线车辆段大平台预应力工程

Prestress Project of the Large Platform of Vehicle Management Department of Fuxingmen-Bawangfen Line of Beijing Metro

北京地铁复八线车辆段大平台1层结构施工完成后地铁已经投入正常使用,在进行上部主体结构施工时,因施工荷载较大,采用体外预应力及外部粘钢等技术对首层结构进行加固。大平台以上有2层及10层小楼,为解决大跨重载问题,大平台框架主梁及次梁采用了无粘结及有粘结预应力技术。

The metro was put into service after construction of the first floor structure of the large platform of Vehicle Management Department of Fuxingmen-Bawangfen Line of Beijing Metro was finished. During construction of the upper main structures, because of huge construction loading, engineers adopted some techniques such as external prestress, and exterior sticking steel and so on to strengthen the first floor structure. There are some 2 floors and 10 floors buildings. To solve the problem of large span and heavy loading, engineers used the unbonded and bonded prestress technologies on main beams and junior beams of the large platform frame.=