Abstract：
In this paper, the key technology for the concrete structure of Xining city to build a rail transit project, combined with static load test of different high performance concrete beams and finite fatigue loads, analysis of failure modes of high performance concrete beams, stress performance comparison of different water binder ratio of reinforced concrete beams, HPC and OPC beams bearing under different ratio of load and fatigue load under cyclic bending capacity, deflection, strain, strain of steel, influence of crack width. The results show that the bearing capacity of HPC beams is higher than OPC beams; fatigue performance, crack resistance are better than OPC; fatigue cumulative number in 50 000~100 000, the rapid growth of the crack.
