Analyzed the uncertainties on the fatigue properties of welded hollow spherical joints plategrid structure.
分析了各种不确定因素对焊接空心球节点网架疲劳性能的影响程度。
2
Use special calcium lead tin alloy plategrid, more resistant to corrosion, charging accept ability is better.
使用特殊的钙铅锡合金板栅，更耐腐蚀，充电接受能力更好。
3
The deflection of double-pitch hipped-plategrid structure increased significantly after earthquake, and the part of anchor bolts of rubber bearing were cut off.