基于案例的装配式建筑全寿命期综合效益评价

A Case Study of Life Cycle Analysis of Comprehensive Benefits of Prefabricated Buildings

基于全寿命期的实际案例,从“经济效益、环境效益、社会效益、其他效益”4个方面,将装配式建造与传统现浇建造进行定量定性的对比分析,发现目前发展中的装配式建筑相对现浇建筑,建设阶段成本上升,其中建筑安装成本费用上升最大,主要影响因素为构件价格;使用阶段因装配式建筑设计―生产―施工一体化,产品质量好、舒适,运维费较现浇低;回收阶段2种阶段模式的回收价值均不高。最终得出了装配式建筑较现浇建筑经济效益更好,环境效益显著,社会效益明显,是实现绿色建造的有效途径的结论。

A life cycle analysis with quantitate and qualitive analysis is made to compare the comprehensive benefits of prefabricated buildings and traditional cast-in-situ buildings to achieve sustainable development of buildings with economic,environmental,social and other benefits.It is found that the cost of prefabricated buildings increases compared with that of cast-in-situ buildings,in which the cost of construction and installation increases the most,which is result of the increasing price of components.Due to the integration of design-production-construction of prefabricated buildings,the product quality is good and comfortable,and the operation and maintenance cost is lower than that of cast-in-buildings.However,the recovery value of neither mode is high.It can be concluded that prefabricated buildings are better with economic,environmental,and social benefits,which could give insight to green construction.