高空桁架下弦临时辅助桁架吊装法施工技术

The hoisting construction technology of high-altitude lower chord temporary auxiliary truss

针对工程产品特点、现场环境条件,以高空桁架下弦为上弦,增设下弦、腹杆形成临时辅助桁架,分件吊装腹杆、上弦杆,完成高空重型桁架的组拼,达到高空桁架的吊装目的。

According to the project product charateristics and the work field environment condition, lower chord of high-altitude truss is used as upper chord. Lower chord and web member are added as the temporary auxiliary truss. Web member and upper chord are hoisted, assembling of high-altitude heavy truss is finished.