装配式复合外墙外保温施工技术与承载力计算

Construction Technique and Bearing Capacity Calculation of Assembled Composite External Thermal Insulation

目的对既有建筑进行节能改造,实现装配式施工.方法基于装饰复合板及复合板与锚固于既有外墙墙体的受力配件的装配式固定与连接,提出外保温施工方法,完成试点工程.以现行规范和国家相关标准为基础,结合工艺特点,进行外保温体系承载力计算.结果计算结果表明,装配式复合外墙外保温体系水平荷载远大于竖向荷载,水平承载力安全储备系数为3.4,满足安全储备限值要求.通过工程实践,检验了施工方法的可行性.结论装配式复合外墙外保温体系承载力具有较高安全储备,确保外保温体系的整体安全、可靠,可简化施工工序,减少环境污染,缩短工期.为工程实践提供理论及应用基础.可满足我国严寒地区居住建筑节能65%的要求.

Assembled composite external thermal insulation for existing buildings is proposed which shortens the duration of external insulation, simplifies the construction procedure and achieves the target of building energy saving 65 %. On the basis of composite panels with decoration which is connected with the force ac- cessories anchored in the exterior wall, construction method of external thermal insulation is proposed to complete the project. Bearing capacity calculation is based on the existing norms and the relevant national standards with polytechnic characteristics. Through the result, horizontal load of external insulation is much larger than the vertical load, bearing capacity is in line with requirement which is 3.4. The feasibility of con- struction methods is tested by the project. Bearing capacity of external thermal insulation has higher safety storage to ensure the safety and reliability of the insulation system and provides theoretical foundation and application for engineering practice.