Analysis And Assessment Of The Hazard Of Collapse In The Construction Projects

China is experiencing a period of rapid economic growth，the process of urbanization hasgreatly promoted the development of the construction industry，but the ensuing securityincidents has become the most serious problem．Security is the basic condition of economicdevelopment and social stability，but also the basic guarantee of national productivity andsustainable social economic．Although China has put great importance to the productionsafety，and various construction companies have also done a lot of security work，because ofthe diversity of construction projects，construction complexity of the environment，technologyand management at this stage are still inadequacies．So how to ensure workplace safety has tobe a top priority to the construction works．At the beginning of this paper， the hazard in the construction projects is analyzed，thenthe study includes the following aspects：Firstly，Based on accident causation theory，three types of "collapse" are analyzed by theuse of Fault Tree Analysis which get a higher accident rate in recent years and the detailed listof sources of danger on the future the qualitative analysis of other accidents reference．Second，Inspect the construction work safety evaluation of sources of danger relatedliterature，combined with a year of experience in construction，construction experts andconsult all of the flats．Three collapse of the fault tree analysis，respectively，the correspondingevaluation index system of security incidents，with the knowledge of the rough set theory todetermine the weights of the indicators and the use of fuzzy comprehensive evaluation methodto evaluate the security situation of the project was constructed collapse accident hazard safetyassessment model based on rough sets-fuzzy Evaluation of construction works．Third，a high-rise residential building projects，project examples，relevant project data obtained through field research and expert consultation，using the established index systemand evaluation model to evaluate the project’s scaffolding safety management，the evaluationresults of the actual situation．Finally，the analysis and evaluation of results，the developmentof security countermeasures，further guidance on safety rectification work．...