A static test program on two trusses which include directly welded gap K-joints is carried out, the aim of the work is to study the static behavior of the directly welded SHS truss.
为研究直接焊接方钢管桁架的静力工作性能，进行了两榀直接焊接K型间隙方钢管桁架静力试验。
Abstract: This article reviews various research work of static and dynamic as well as aseismic behavior for the revolution bellows.
文摘：评述了波纹管的静力和动力特性以及储油罐连接波纹管的抗震性能等方面的研究工作。
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