论文部分内容阅读
我公司承担的某影剧院改建工程,根据要求,该建筑物原墙柱及看台楼面不拆,只除拆屋面和木基层,将它换成钢筋混凝土屋架和预应力钢筋混凝土屋面板。屋架重9吨,因场地狭小,只能采用桅杆式起重设备。吊杆支承在桅杆离地5米的高度时,才能吊装看台顶上最远处的一榀屋架。经汁算,桅杆承载力不能满足吊装要求,于是我们采取了一项技术措施,改变了桅杆的受力状况,提高了桅杆的承载力,并顺利地完成了任务,具体作法如
In accordance with the requirements of the reconstructed project of a certain movie theatre undertaken by our company, the original wall column and the grandstand floor of the building will not be demolished. Only the demolished roof and wooden base will be replaced by reinforced concrete truss and prestressed reinforced concrete roofing. The truss weighs 9 tons. Because of the small space, only mast-type lifting equipment can be used. The boom supports a truss at the farthest point on the top of the grandstand when the mast is 5 meters above the ground. After the calculation of the juice, the bearing capacity of the mast cannot meet the hoisting requirements, so we adopted a technical measure that changed the stress condition of the mast, improved the bearing capacity of the mast, and successfully completed the task.