内浇外挂型预制凸窗设计与安装的探讨

Explore design and installation of pouring plug-type prefabricated bay window

中海鹿丹名苑8栋、9栋位于广东省深圳市罗湖区,抗震设防烈度为7度(0.1g),是首个政府要求满足建筑产业化指标的项目,均为高度超限工程,采用剪力墙结构体系。针对工程特点,所有外窗设计成内浇外挂型预制凸窗(共四种类型),且均在预制构件厂生产并运往工地装配成整体结构。根据预制构件在生产、脱模、起吊、运输、施工吊装、正常使用各阶段的受力特点对其进行受力分析和设计。考虑传力的可靠性、变形协调性、抗裂性、防水性等因素,合理设计凸窗与现浇部分的连接,并介绍了凸窗与铝模体系的连接。最后介绍了凸窗安装过程中的临时固定体系以及安装后的凸窗间缝隙的后期处理,并总结了此类预制凸窗在实践过程中的经验和教训。目前该项目仍在施工过程中,吸引了政府以及众多同行的参观,总体上是令人满意的。

The No. 8 building and No. 9 building of the China Overseas Ludan gardens project is located in Luohu district,Shenzhen city,Guangdong province,where the seismic precautionary intensity is 7 degree and the design basic acceleration of ground motion is 0. 1g. This is the first project must to meet the requirements of the construction industry indicators. The height of the two buildings which adopt shear wall structure all exceed the Chinese code limit. According to the engineering characteristics,All the windows were designed to be pouring plug-type prefabricated bay window( a total of four types),and produced in prefabricated components factory and transported to the site for installation.According to the structural characteristics of the prefabricated components in the production, release, lifting,transportation,hoisting,normal use each stage,the paper analyzed and designed the prefabricated components. When designed the combination of the bay windows and the cast-in-situ concrete structure,the reliability of load-transferring,the compatibility of deformation,crack resistance,water resistance and other factors were considered in the paper. The combination of the bay windows and aluminum formwork system was also introduced in the paper. Finally the paper described the temporary fixed system during the installation of the bay windows and the treatment measure of the gap between the bay windows after installation,and summarized the experiences and lessons of such prefabricated windows in the process of practice. At present,this project which is still being constructed,have attracted the government as well as a number of peers to visit. The project was generally satisfactory.