论文部分内容阅读
使正常养护28d的70个镀锌焊接钢丝网水泥试件持续受弯，最外层钢丝的计算应力达到腐蚀状态下容许值207N／mm2，再放入自制的以70℃干燥60min和40℃3．5％NaCl溶液浸渍30min为一周期的快速模拟海洋环境实验系统中，分别承受荷载一腐蚀共同作用1、3、7和18个月（480－8640个周期），再对这些试件进行弯曲疲劳－腐蚀试验。分析评估了影响钢丝网水泥抗荷载－腐蚀性能的因素，给出了破坏概率－应力水平－疲劳寿命（P－S－N）关系，指出不必计算裂缝宽度.
The 70 galvanized welded steel wire mesh cement specimens that have been normally cured for 28 days are continuously bent. The calculated stress of the outermost steel wire reaches the allowable value of 207 N/mm2 in the corrosive state, and the self-made steel is dried at 70°C for 60 minutes and 40°C. In a rapid simulated marine environment experimental system in which a .5% NaCl solution was immersed for 30 minutes, each of the loads was subjected to a combined corrosion action for 1, 3, 7 and 18 months (480-8640 cycles), and these specimens were bent. Fatigue-corrosion test. The factors affecting the load-corrosion resistance of steel wire mesh cement were analyzed and evaluated. The relationship between failure probability-stress level-fatigue life (P-S-N) was given and it was pointed out that the crack width did not have to be calculated.