The geometrical and mechanical properties of reinforcing steels embedded in the RC structures may be deteriorated due to the aggressive environments, such as the carbonation, chloride, and wind-induced fatigue. The joint effects of aging and seismic load on the response of high-rise buildings are always neglected in current structural design specifications. This paper presents a probabilistic methodology to assess the time-dependent annual damage probability considering the carbonation-induced corrosion and the uncertainties associated with random variables under seismic excitations, which is implemented in a 42-story steel frame-RC core tube building. The loss of cross-sectional area and reduction in strength of reinforcements are considered in the analysis for the serviceability and safety limit states. The seismic hazard model and conditional fragility are integrated to compute the total annual damage probability of this building at different aging scenarios. Numerical results indicate that the carbonation-induced corrosion in reinforcements has significant impacts on the structural performances during its lifetime under both the serviceability and safety limit states. Neglecting the influences of deterioration may lead to erroneous predictions of damage probabilities for corroded high-rise buildings. The application of this study highlights the necessity of comprehensively discussing the detrimental effects of harsh environments on high-rise buildings, which may be neglected in the available literature.

嵌入到RC结构中的钢筋的几何和机械性能可能会由于侵蚀性环境（例如碳化，氯化物和风致疲劳）而恶化。当前结构设计规范中始终忽略了老化和地震荷载对高层建筑响应的共同影响。本文提出了一种概率方法，该方法考虑了碳化引起的腐蚀以及地震激励下与随机变量相关的不确定性，从而评估了随时间变化的年度破坏概率，该方法在42层钢框架-RC核心管建筑中实现。在使用性和安全极限状态的分析中考虑了横截面积的损失和钢筋强度的降低。地震危险性模型和条件脆弱性相结合，以计算该建筑物在不同老化情况下的年度总损坏概率。数值结果表明，在使用寿命和安全极限状态下，钢筋中碳化引起的腐蚀对结构性能都有重大影响。忽略恶化的影响可能导致对腐蚀的高层建筑的损坏概率的错误预测。这项研究的应用强调了全面讨论恶劣环境对高层建筑的不利影响的必要性，这在现有文献中可能被忽略。数值结果表明，在使用寿命和安全极限状态下，钢筋中碳化引起的腐蚀对结构性能都有重大影响。忽略恶化的影响可能导致对腐蚀的高层建筑的损坏概率的错误预测。这项研究的应用强调了全面讨论恶劣环境对高层建筑的不利影响的必要性，这在现有文献中可能被忽略。数值结果表明，在使用寿命和安全极限状态下，钢筋中碳化引起的腐蚀对结构性能都有重大影响。忽略恶化的影响可能导致对腐蚀的高层建筑的损坏概率的错误预测。这项研究的应用强调了全面讨论恶劣环境对高层建筑的不利影响的必要性，这在现有文献中可能被忽略。忽略恶化的影响可能导致对腐蚀的高层建筑的损坏概率的错误预测。这项研究的应用强调了全面讨论恶劣环境对高层建筑的不利影响的必要性，这在现有文献中可能被忽略。忽略恶化的影响可能导致对腐蚀的高层建筑的损坏概率的错误预测。这项研究的应用强调了全面讨论恶劣环境对高层建筑的不利影响的必要性，这在现有文献中可能被忽略。