Multi-node integral installation method for steel truss beam

The invention discloses a multi-node integral installation method for a steel truss beam, comprising the following steps: firstly, integral manufacturing is carried out in a factory, then the product is installed to form standard segments, the standard segments are temporarily fixed and pre-jointed in the factory, then the segments are transported to bridge location by large transportation equipment, integral lifting is carried out by a large lifting appliance and the segments are installed; the installation sequence is that firstly, a lower chord and an oblique web plate are installed, then a middle chord, an upper chord and a side upper chord are installed, at last, a lower lateral bracing, a lateral plate and a bridge deck in a welding way. The invention has the advantages that the linetype is easily controlled, the steel truss beam can be used as the operation platform, the installation speed is high, construction period is shortened and construction security is guaranteed.