摘要
本研究旨在深入研究装配式混凝土结构建造中的质量问题,并提出解决方案,促进建筑工业化的可持续发展.通过文献调研和实地项目统计,全面介绍装配式混凝土结构生产过程,包括模板设计、钢筋加工、预制构件浇筑、脱模养护、运输、吊装、连接和节点质量控制,定量描述了结构质量、尺寸偏差、外观质量、施工过程和节点质量等方面的问题.具体而言,本文发现超28％的构件存在缺陷,尺寸偏差平均达到3.2 mm,21％的构件有表面缺陷,12％在吊装和安装过程中出现问题,节点的平均尺寸偏差为6.2 mm.基于这些结果,本文提出了切实可行的解决方案,包括研发成套预制构件浇筑养护质量控制技术、研发成套预制构件高精度制作工艺及装备、研发预制构件全环节数字信息化追踪技术、开发装配式预制管桩拼接新工艺和预制构件轻量化新工艺、利用连接节点质量控制技术控制节点质量等.通过采用先进工艺和技术手段,预期可以有效降低质量问题的发生率,为装配式混凝土结构建造提供科学依据,推动建筑工业化的可持续发展.
Abstract
This study delves into quality issues in prefabricated concrete structure construction,proposing solutions to advance sustainable development in the construction industry.Through literature review and on-site data,the production process is detailed,covering template design,reinforcement processing,prefabricated component casting,demolding,curing,transportation,hoisting,connection,and node quality control.The research quantifies problems in structural quality,dimensional accuracy,appearance,construction processes,and nodes.Results show that over 28％of components have defects,with an average dimensional deviation of 3.2 millimeters.Additionally,21％of components exhibit surface defects,and 12％encounter issues during hoisting and installation.Nodes,on average,deviate by 6.2 millimeters.Practical solutions are proposed,including integrated technologies for quality control in casting and curing,precision manufacturing processes,digital tracking for prefabricated components,innovative assembly methods,and lightweighting techniques.Advanced technology is applied for node quality control.By implementing these solutions,the study anticipates a significant reduction in quality issues,providing a scientific basis for prefabricated concrete structure construction and propelling sustainable development in the construction industry.
基金项目
中国博士后科学基金(2022M720898)
广东省住房和城乡建设厅2020年科技计划项目(2020-K9-083374)
广州市建筑科学研究院集团有限公司科技进步资金项目([2024]Y-KJ07)
维普
万方数据