The hollow beamconstruction not only produce the stress concentration, reduce the effect of beam mass but also extended the bandwidth.
采用空心梁结构不仅能产生应力集中而且能减少梁的自身质量带来的影响，可以有效地展宽频带。
2
The article studies for the future of prestressed steel beamconstruction error on the structural effects of the accumulation of information.
本文对此进行研究，为今后的预应力钢束施工误差对结构影响积累资料。
3
In the slab beamconstruction, common support methods include full support method, cross shape steel method, embedded steel sheet, holt hoop iron method, etc.