基于4D施工安全信息模型的建筑施工支撑体系安全分析方法

4D CONSTRUCTION SAFETY INFORMATION MODEL-BASED SAFETY ANALYSIS APPROACH FOR SCAFFOLD SYSTEM DURING CONSTRUCTION

建筑施工支撑系统倒塌在我国建筑工程施工安全事故中占很大比例,使施工支撑体系安全分析的研究得到广泛重视。该文通过研究现有的支撑体系安全分析方法,针对其三维建模和对施工期连续时变特性描述和分析等方面存在的不足,引入4D(4-Dimensional,四维)技术和BIM(Building Information Model,建筑信息模型),通过建立4D施工安全信息模型,将支撑体系与施工过程信息动态地链接起来,能快速建立支撑体系的3D模型,并自动生成随进度变化的支撑体系安全分析模型,从而简化支撑体系的力学分析过程,提高了计算精度和效率,为支撑体系的分析计算提供了新的途径和方法。该文还通过一个应用实例,验证了将4D施工安全信息模型应用于施工期支撑体系安全分析的可行性。

Collapses of scaffold system account for a significant proportion in construction accidents so that safety analysis of scaffold system during construction received wide attention.However,the existing calculation methods have some deficiencies in 3D modeling and time-dependent description.This paper proposed a new safety analysis approach for scaffold system during construction by inducting 4D（4-Dimensional） technology and BIM（Building Information Model）.The 4D Construction Safety Information Model,which provides complete information for dynamic connection between scaffold system and construction process information,is presented and established so that 3D models and structural analysis model of scaffold system can be generated rapidly and automatically,therefore the safety analysis process can be simplified greatly.This paper also demonstrates that safety analysis of scaffold system based on the 4D Construction Safety Information Model is feasible and practical through an application example.