刚架拱静载试验加载效率研究

以某刚架拱桥为背景,利用影响线法进行刚架拱静载试验,发现在主节点（L/4截面）附近内力和挠度加载效率存在差异,同时对比了同矢跨比的普通拱桥在L/4截面的内力和变形加载效率,结果表明以内力主控时刚架拱在主节点附近处挠度的加载效率需要增加测试工况来满足要求.

Research on Loading Efficiency of Static Load Test for Rigid Frame Arch Bridge

Taking a rigid frame arch bridge as the background, this paper conducted the static load test of rigid frame arch using the method of influence line. It was found that there were differences between the loading efficiency of internal force and deflection near the master node （L/4 section）. Loading efficiency of internal force and deformation in L/4 section for ordinary arch bridge with the same rise-span ratio were compared. The results showed that test condition of deflection loading efficiency near the master node should be incresed to meet the requirements when rigid frame arch mastered by internal force.