2) existing reinforced concrete bridge
既有钢筋混凝土桥梁
1.
An attenuation model for time-dependent structural resis-tance of existing reinforced concrete bridges is introduced, and a method for determining or modifying the model parameters with available resis-tance information using regression and least squares principles is detailed.
针对既有钢筋混凝土桥梁的特点 ,讨论了结构抗力的衰减模型 ,并提出了根据已有抗力信息采用回归分析方法及最小二乘法确定或修正模型参数的方法 ;建立了以现时刻为分析时间起点的考虑抗力随时间变化的继续使用期内承载能力可靠度分析模型 ,并讨论其求解方法。
3) aged RC beam
既有钢筋混凝土梁
1.
The numerical analysis of aged RC beam′s working character;
既有钢筋混凝土梁工作特性数值分析
2.
The failure of the aged beams appears some brittleness nature,and engineers should pay more attention to the difference of working behavior between aged RC beams and new RC beams.
根据对 3根既有钢筋混凝土梁构件 (构件已工作时间为 4 3年 )的静载荷试验 ,得到了 3根梁的荷载挠度曲线和破坏特征 ,其破坏特征与新建钢筋混凝土梁构件破坏特征不同 ,表现为脆性破坏 ,该破坏特征应引起工程技术人员充分重
4) existing railway concrete bridges
既有铁路混凝土桥梁
1.
Based on“multi-stage simulating loading method”,the fatigue life of a series of existing railway concrete bridges with different span under various kinds of cases is predicted,and the fatigue life reliability analysis is primarily studied.
基于所提出的“多阶段模拟加载法”,对一系列不同跨度的既有铁路混凝土桥梁在不同工况下的疲劳寿命进行了预测研究,并对疲劳寿命可靠性分析进行了初步探讨。
5) existing concrete bridge
既有混凝土桥梁
1.
Under the influence of loading,environment,material and service time,the existing concrete bridges structure performance can gradually deteriorate,which makes the actual reliability of the structure reduce than the reliability that is designed originally.
既有混凝土桥梁结构在荷载、环境、材料以及使用时间等因素的影响下,结构的性能会逐步劣化,结构性能的劣化使得结构的实际可靠度比原设计的可靠度降低。
6) existing concrete beam bridges
既有混凝土梁桥
补充资料：采用滑模工艺建造钢筋混凝土烟囱
采用滑模工艺建造钢筋混凝土烟囱
采用滑模工艺建造钢筋混凝土烟自
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条