悬挑脚手架安全性评价及预警管理研究

发布时间：2018-01-16 13:08

本文关键词：悬挑脚手架安全性评价及预警管理研究　出处：《西安建筑科技大学》2015年硕士论文　论文类型：学位论文

【摘要】：悬挑脚手架是建设部推广的十大施工新技术之一,具有不受现场和楼高的限制,投入低、周转快、缩短工期等优点,已成为我国目前工程施工中广泛应用的一种脚手架。作为一种重要的临时结构体系,由于设计计算、材料质量、施工技术、现场管理等方面的原因,导致悬挑脚手架安全事故在搭设、使用或拆除过程中时常发生,不仅严重威胁着施工人员的生命安全,而且阻碍了我国建筑业的健康可持续发展。因此,对悬挑脚手架的安全性及其预警管理系统进行深入的剖析和研究具有重要的理论意义和现实意义。本文通过大量有关文献的分析研究,并结合全国大范围的调研实践,展开对悬挑脚手架安全性评价及预警管理的研究,研究的主要内容包括以下几方面:(1)统计了2010-2014年房屋市政工程生产安全事故发生情况,并对全国现场调研项目的脚手架应用情况进行了分析,总结出脚手架搭设、使用和拆除过程中存在的主要问题,说明进行悬挑脚手架安全性研究的必要性;(2)在分析悬挑脚手架安全性影响因素的问题上,利用ANSYS有限元分析软件主要从构造体系及设计计算、材料质量、施工技术、现场施工管理四个方面进行详细的分析,得出重要结论;(3)在悬挑脚手架安全性影响因素分析的基础上,构建了悬挑脚手架安全性评价模型,运用区间层次分析法和灰色欧几里德关联理论对四大因素的影响进行分析。先用区间层次分析法求出各指标的影响权重,然后用灰色相对欧几里德加权关联度理论求出各指标的关联度,分析各指标对悬挑脚手架安全性的影响程度,找出关键影响因素,指出薄弱环节,最后用实例验证该评价模型的可行性;(4)介绍了悬挑脚手架安全预警管理系统的总体思路,确定了悬挑脚手架安全预警管理系统的对象,即构造体系及设计计算、材料质量、施工技术、现场施工管理四个方面。从预警分析、预控对策和应急预案三个方面对悬挑脚手架开展安全预警管理工作,并在此基础上,提出了合理有效的悬挑脚手架安全预警管理系统实现模式,为实现悬挑脚手架的安全预警管理提供了依据。
[Abstract]:Cantilevered scaffolding is one of the ten new construction technologies popularized by the Ministry of Construction. It has the advantages of low input, quick turnover, short construction period and so on. As an important temporary structure system, it is due to design calculation, material quality, construction technology, site management and other reasons. The safety accidents of cantilever scaffold are often occurred in erection, use or demolition, which not only seriously threaten the safety of construction personnel, but also hinder the healthy and sustainable development of Chinese construction industry. It is of great theoretical and practical significance to deeply analyze and study the safety of cantilever scaffold and its early warning management system. Combined with the national wide range of research practice, the research on the safety evaluation and early warning management of cantilever scaffolding is carried out. The main contents of the study include the following aspects: 1) Statistics of the occurrence of production safety accidents of housing municipal engineering in 2010-2014. The paper also analyzes the application of scaffolding in the field research projects in China, summarizes the main problems in scaffolding erection, use and demolition, and explains the necessity of safety research on scaffolding. In the analysis of the factors affecting the safety of the cantilever scaffold, the use of ANSYS finite element analysis software mainly from the structural system and design calculation, material quality, construction technology. Four aspects of site construction management are analyzed in detail, and important conclusions are drawn. 3) based on the analysis of the factors influencing the safety of the cantilever scaffold, the safety evaluation model of the cantilever scaffold is constructed. The influence of four factors is analyzed by using interval analytic hierarchy process and grey Euclidean correlation theory. First, the influence weight of each index is calculated by interval analytic hierarchy process. Then use the grey relative Euclidean weighted correlation degree theory to calculate the correlation degree of each index, analyze the influence degree of each index on the safety of cantilever scaffold, find out the key factors, point out the weak link. Finally, the feasibility of the evaluation model is verified by an example. This paper introduces the general idea of the safety early warning management system of the cantilever scaffold, and determines the object of the safety early warning management system of the cantilever scaffold, that is, the construction system and design calculation, material quality and construction technology. Four aspects of site construction management. From the early warning analysis, pre-control countermeasures and emergency plan to carry out the safety early warning management of cantilever scaffolding, and on this basis. A reasonable and effective early warning management model of cantilever scaffolding safety is put forward, which provides the basis for realizing the safety early warning management of cantilever scaffolding.
【学位授予单位】：西安建筑科技大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：TU731.2

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