These new measures enhanced the lightning shielding ability to a certain extent and the effect was proved by the reduction of lightning failure rate in the passed year. 这些新方法和新措施的采用在一定程度上提高了线路耐雷水平。改造后的线路经一年多运行结果表明,所采用的措施防雷效果较明显,雷击跳闸率大为降低。
With the influence of strain rate considered, the strength of concrete is enhanced, and the dam can sustain higher tensile stress, so the plastic strain decreases and the region of failure shrinks, and the plastic strain rate changes as well. 考虑应变率对混凝土性能的影响后,混凝土的抗拉强度得到提高,坝体能承受的拉应力提高,拉坏区缩小,塑性应变也有所减小,塑性应变率也发生明显变化。