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公路桥梁经常受着水流、气候、生物等自然界的作用,不断地受着冲刷、千缩、冻涨、锈蚀、腐朽、虫害等等不同程度的影响;又受各种荷裁的力学和机械的反复作用,使结构物发生沉降、变形、疲劳、磨耗、破损等等的消耗和损坏。有名的赵州石桥也几经坍塌修复才能至今维持使用。世界上的事物没有什么一成不变的,桥梁建筑也不例外,只有不断地加以精心地检验观察,及时地加以必要的养护维修和改造,才能维持其处于正常的使用状态。人们从积累的经验中总结了一套桥梁养护的规程制度,对各种桥梁的养护工作都作了比较详尽的指示,这些技术规程还应该
Highway bridges are often affected by nature such as water flow, climate, biology and so on. They are constantly influenced by scouring, shrinking, freezing, rusting, rotting, insect pest and so on. They are also affected by various mechanics and mechanics Repeated effect, so that the structure of settlement, deformation, fatigue, wear, damage and so on the consumption and damage. The famous Zhaozhou stone bridge also collapsed repair can be maintained until now. Nothing in the world remains intact, and bridge construction is no exception. Only by constantly carefully observing and observing it in a timely manner to make the necessary maintenance and renovation can we maintain its normal use. People from the accumulated experience summed up a set of rules and regulations of bridge maintenance, maintenance of various bridges have made more detailed instructions, these technical regulations should also be