It gave a research result on the manufacture technology of arch tube truss, and put forward firstly the instability hoisting technology of singletruss.
探索出圆拱形管桁架的分段制作、现场拼接技术，首次开发了单榀桁架非稳定性吊装技术。
2
The results of the simulation indicate that using the method of the sudden change coefficient of flexibility curvature, the single or multi damage of the steel truss were tested more precisely.
It includes the single site damage detection of continuous beam, simple support beam, fixed end beam, overhanging beam, truss, and the multipoint damage detection of simple support beam.