基于超短栓钉的钢-超薄UHPC组合桥面性能

王立国,邵旭东,曹君辉,陈玉宝,何广,王洋

Performance of steel-ultrathin UHPC composite bridge deck based on ultra-short headed studs

Li-guo WANG,Xu-dong SHAO,Jun-hui CAO,Yu-bao CHEN,Guang HE,Yang WANG

表 7 钢结构各疲劳细节应力幅

Tab.7 Stress amplitude of fatigue details

细节编号 $\sigma_{{\rm{max}}}^{\rm{s}}$/MPa $\Delta\sigma_{\rm{c} }$/ MPa $P_{\rm{\sigma}}$/ % 纯钢梁 超薄体系 细节① 65.2 31.3 60.9 52.0 细节② 62.0 40.8 60.9 34.2 细节③ 83.3 64.7 69.6 22.3 细节④ 49.0 38.81 69.6 20.8 细节⑤ 43.7 39.3 60.9 10.1 细节⑥ 43.4 36.7 95.7 15.4