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我公司在衡阳冶金机械厂热处理车间工程施工中,由于吊装疏忽,将1榀24m跨预应力屋架下弦与吊车履带相撞,造成屋架下弦8～9节间杆件中段局部多处裂缝。征得有关单位同意,我们对裂缝部位作局部处理。处理后屋架经过结构试压检验,满足设计要求。现将处理过程介绍如下: 一、裂缝情况该屋架为24m跨预应力钢筋混凝土折线形屋架,按原一机部第一设计院所编图集CG423(三)YWJ_(24)-V制作。屋架个别裂
During the construction of the heat treatment workshop of Hengyang Metallurgical Machinery Factory, due to the carelessness of the hoisting, our company collided a 1榀24m crossover of the prestressed truss lower string with the crawler track, causing partial cracks in the middle section of the lower part of the truss between 8-9 sections. With the consent of the relevant unit, we dealt with the cracks locally. After processing, the truss passes structural pressure test to meet the design requirements. The process is now described as follows: First, the crack situation The truss is 24m span prestressed reinforced concrete bent line roof truss, according to the original design of a machine designed by the Institute of Atlas CG423 (C) YWJ_ (24)-V production. Roof cracking