门式钢架厂房结构安装技术（Structure installation technology of portal steel house）.doc

门式钢架厂房结构安装技术（Structure installation technology of portal steel house） Structure installation technology of portal steel house Date: 2010-11-30 9:50:16 editor: number of clicks of the information center: In recent years, because of the characteristics of steel structure and the improvement of the national steel output, the steel structure technology has developed rapidly. A large number of steel structure light steel factory buildings have been built in our country, especially the portal frame structures are widely used. I have been engaged in the installation of steel structure, combined with our company is the construction plant, according to the characteristics of portal frame structure on the installation process such building structure and some problems should be paid attention to. Portal frame light weight, slender component, easy deformation, and the installation of high precision, so the installation sequence of rational choice is an important link to ensure the installation quality of the overall structure, reasonable installation procedures are as follows: from the inter column brace internode began, first installed four steel column and the column support. To form a stable body. Then, the roof beams and sub structures between the two columns are installed so that a stable installation unit is formed, and finally, the installation of steel column, crane beam and roof beam are carried out in turn. The adjustment of the crane beam shall be carried out after the erection of all the structures. According to the structural features, it is divided into three areas for installation, the first zone is DEF cross structure installation, the second zone is FGH cross structure installation, and the third zone is HJK cross structure installation. Installation order: every area were installed to start the installation to the 1 line from the 18 line, the first installation of 18 lines and 17 lines between the steel column and column support, I installed the roof structure