Research on Construction Control of Prefabricated Concrete Frame Structure
In order to solve the quality problems that are prone to occur in the construction of prefabricated frame structures,a commercial housing project in Beijing City was taken as the research object.Based on the analy-sis of the construction difficulties of prefabricated concrete frame structures,the problems that are prone to oc-cur in the two stages of construction preparation and assembly were statistically analyzed.Combined with the analy-sis results,targeted on-site construction control measures were proposed.The results show that the frequency of problems that are prone to occur during the construction preparation stage varies from 5.54%to 30.09%.Problems with a frequency of more than 20%are mainly concentrated in incomplete component attachments,rough joint surface treatment,and inadequate transportation protection.Among them,the frequency of inadequate transportation protec-tion is the highest,reaching 30.09%;The frequency of problems that are prone to occur during the assembly stage varies from 1.63%to 32.5%,and there are significant differences in the frequency of various quality problems.The frequency of inadequate lifting protection,quality defects in the post pouring section,grouting quality defects,and installation size deviations are all greater than 15%,while the frequency of poor quality of connecting sleeves,concrete cracking,and water and electricity installation problems is less than 5%.
万方数据
维普
