【摘要】 在役房屋结构经过长时间使用后,建筑材料、构件和结构会存在不同程度的损伤和性能退化,当损伤累积到一定程度后,会降低结构的安全性、适用性和耐久性。通过对在役结构进行安全性评价,计算其破坏概率,对随机变量的极限状态函数4阶矩进行推测,从而保证在役结构的正常使用功能。更多还原

【Abstract】 After the long use of the building structure in service,there exist damage and performance degradation to its building materials,components and strutures to different degrees.And the accumulation of the damage to a definite extent will bring down the safety,adaptability and the durability of the building structure.By evaluating the safety of the building structure in service,calculating its damage probability and speculating limit state function of fourth-order moment of the random variables,we can guarantee the normal use function of the building structure in service.更多还原