金属结构工程公司今年施工任务的特点是工程量大和质量要求严格。在工期紧迫、施工现场狭小的高空作业中,本可以采用坦克吊、汽车吊等起重机械,但因门小进不去,以致吊桿施展不开,部份工作不得不仍采用体力劳动。在这种情况下,吊装金属结构物件「檩子」的时候,通常是用下面两种方式进行的:一种是在两个「傘花子」当中横搭上一块木头,紧后即在当中栓上「滑子」。用捲扬机慢慢把物件吊起,当离地一米时,再用绳子把物件竖起来往上吊。到了要 Metal structure engineering company construction tasks this year is characterized by large quantities and strict quality requirements. In the tight construction period and the narrow aerial work at the construction site, crane and truck crane could have been used. However, due to the small entrance of the door, the boom could not be used and some of the work had to be still manual labor. In this case, hoisting the metal structure “prickly heat” is usually done in two ways: one is to cross a piece of wood between the two “umbrellas” and immediately after the bolt On the “slider.” Slowly hoist the object with a hoist, when one meter from the ground, and then use the rope to erect the object to hang up. To be