北京石油化工总厂设计所和北京铁路局昌平构件厂对“折迭式预应力V形板”的使用情况作了调查,并写了调查小结。总的分析,大部分已建成的厂房折板质量很好。但也有的单位在使用过程中出了一些问题,如坍落、裂缝等情况。今将发生的问题和分析简介如下,以供参考。 1.坍落情况:有些地方发生了多次坍落事故,据了解多是发生在安装过程中。 Beijing Petrochemical Plant Design Institute and Beijing Railway Bureau Changping Component Factory “folded prestressed V-shaped plate,” the use of the case was investigated and wrote a survey summary. As a general analysis, most of the completed plant flaps are of good quality. However, some units have some problems during use, such as slump and cracks. The problems and analysis that will occur are summarized below for reference. 1. Slump situation: In some places there have been many slump accidents, it is understood that most occurred in the installation process.