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 约束影响系数
 restraint influence coefficient
 THE STEEL RESTRAINT INFLUENCE COEFFICIENT METHOD TO ANALYZE TIME-DEPENDENT EFFECT IN PRESTRESSED CONCRETE BRIDGES 预应力混凝土桥梁时变效应分析的钢筋约束影响系数法 短句来源 It's the first time clearly and systematically to present the concepts of restraint influence coefficient of steel to strain increment, to curvature increment and to deflection increment due to creep which are different each other. 本文首次清晰而系统地提出了钢筋对徐变的不同效应(徐变应变、徐变曲率、徐变上拱)约束影响系数的概念，建立了相应的计算式； 短句来源 The concepts of restraint influence coefficient of steel on the time-dependent effects of prestressed concrete bridges due to creep and shrinkage are present systematically, and the expressions are provided. Then the steel restraint influence coefficient method to analyze time-dependent effect in prestressed concrete bridges is put forward, and a series of formulae which can calculate time-dependent stresses and strains in both concrete and steel and the deflections of bridge are introduced. 系统地提出了预应力混凝土桥梁结构中钢筋对徐变和收缩时变效应的约束影响系数的概念,并给出了影响系数的计算公式,籍此提出了时变效应分析的钢筋约束影响系数法,建立了一套理论公式,可计算时变的钢筋和混凝土应力、应变及梁体竖向变形。 短句来源
 “约束影响系数”译为未确定词的双语例句
 ④　The constraint factor ? ④对规范节点抗剪公式中直交梁约束影响系数? 短句来源 Presents the definition and calculation of lateral-restraint modulus for prestressed concrete indeterminate structures,discusses the four methods established for calculating lateral restraint :adding secondary axial force,basing on two-stage-working principle,renewing the definition of secondary mo-ment and considering internal force due to lateral deformation,and sums up the three constructional ways:hinged joint in beam end,pin joint in column end and sub column,established by analyzing traditional ultimate load-carrying capacity formula. 提出了超静定预应力混凝土结构侧向约束影响系数的概念与计算方法。 在分析了现行常规设计方法承载力计算公式之后,建立了通过次轴力考虑侧向约束影响、通过预应力筋两阶段工作原理考虑侧向约束影响、通过重新定义次弯矩考虑侧向约束影响和通过位移荷载考虑侧向约束影响等四种计算分析方法。 短句来源 Based on the analysis of numerous practical projects,by changing the stiffness ratio of column to beam and the friction coefficient,an interpolation between the results whether considering the distribution of effective prestress or not is found. 改变柱梁的线刚度比、摩擦系数进行计算分析发现,侧向约束影响系数将随着梁柱线刚度比的减小而减小,随着摩擦损失的增大而增大; 短句来源
 相似匹配句对
 C. C的影响; 短句来源 Once Again Talking about Deflection Effective Co- efficient of Elastic Restraint Rod and Stability Calculation 再论弹性约束杆挠度影响系数及稳定性计算 短句来源 The Influence of Dirt Coefficient on Heat Exchanger 污垢系数对热交换器的影响 短句来源 THE STEEL RESTRAINT INFLUENCE COEFFICIENT METHOD TO ANALYZE TIME-DEPENDENT EFFECT IN PRESTRESSED CONCRETE BRIDGES 预应力混凝土桥梁时变效应分析的钢筋约束影响系数法 短句来源 The influence of viscosity-pressure coefficient is analyzed. 分析了黏压系数的影响。 短句来源

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 Presents the definition and calculation of lateral-restraint modulus for prestressed concrete indeterminate structures,discusses the four methods established for calculating lateral restraint :adding secondary axial force,basing on two-stage-working principle,renewing the definition of secondary mo-ment and considering internal force due to lateral deformation,and sums up the three constructional ways:hinged joint in beam end,pin joint in column end and sub column,established by analyzing traditional... Presents the definition and calculation of lateral-restraint modulus for prestressed concrete indeterminate structures,discusses the four methods established for calculating lateral restraint :adding secondary axial force,basing on two-stage-working principle,renewing the definition of secondary mo-ment and considering internal force due to lateral deformation,and sums up the three constructional ways:hinged joint in beam end,pin joint in column end and sub column,established by analyzing traditional ultimate load-carrying capacity formula.Thereby providing basis for rational computation of lateral restraint fo r prestressed concrete structures. 提出了超静定预应力混凝土结构侧向约束影响系数的概念与计算方法。在分析了现行常规设计方法承载力计算公式之后,建立了通过次轴力考虑侧向约束影响、通过预应力筋两阶段工作原理考虑侧向约束影响、通过重新定义次弯矩考虑侧向约束影响和通过位移荷载考虑侧向约束影响等四种计算分析方法。分析总结了梁端铰接法、柱底铰接法和子柱法等三种通过构造措施考虑侧向约束影响的方法。为合理设计有侧向约束的预应力混凝土结构提供了依据。 The concepts of restraint influence coefficient of steel on the time-dependent effects of prestressed concrete bridges due to creep and shrinkage are present systematically, and the expressions are provided. Then the steel restraint influence coefficient method to analyze time-dependent effect in prestressed concrete bridges is put forward, and a series of formulae which can calculate time-dependent stresses and strains in both concrete and steel and the deflections of bridge are introduced. This method can... The concepts of restraint influence coefficient of steel on the time-dependent effects of prestressed concrete bridges due to creep and shrinkage are present systematically, and the expressions are provided. Then the steel restraint influence coefficient method to analyze time-dependent effect in prestressed concrete bridges is put forward, and a series of formulae which can calculate time-dependent stresses and strains in both concrete and steel and the deflections of bridge are introduced. This method can be used in both statically determinate system and statically indeterminate system, and to calculate time-dependent redistribution of internal force. These formulae give obvious physical meaning and are easy to use. Comparison between theoretical values and experimental results shows that the presented approach achieves higher accurary. 系统地提出了预应力混凝土桥梁结构中钢筋对徐变和收缩时变效应的约束影响系数的概念,并给出了影响系数的计算公式,籍此提出了时变效应分析的钢筋约束影响系数法,建立了一套理论公式,可计算时变的钢筋和混凝土应力、应变及梁体竖向变形。不仅适用于静定桥梁结构,亦适用于超静定桥梁结构,可计算时变结构内力重分布。计算式物理意义明确,使用方便;理论分析与试验结果比较表明,公式具有较高的计算精度。 The influence of lateral restraints on the prestressed concrete structure has been discussed in many papers and main factors including the style of structures,stiffness ratio of column to beam and method of construction are considered except the distribution of effective prestress.Based on the analysis of numerous practical projects,by changing the stiffness ratio of column to beam and the friction coefficient,an interpolation between the results whether considering the distribution of effective prestress or... The influence of lateral restraints on the prestressed concrete structure has been discussed in many papers and main factors including the style of structures,stiffness ratio of column to beam and method of construction are considered except the distribution of effective prestress.Based on the analysis of numerous practical projects,by changing the stiffness ratio of column to beam and the friction coefficient,an interpolation between the results whether considering the distribution of effective prestress or not is found.It is indicated that the modulus of lateral restraint increase with the increase of friction loss,while decrease with the dimish of stiffness ratio of column to beam.So the distribution of effective prestress should be considered in the calculation of lateral-restraint modulus.The suggestion of considering secondary force into the computation formulas is proposed. 预应力混凝土结构的侧限影响与结构形式、梁柱线刚度和施工方法等因素有关,对于是否与有效预应力的分布有关尚没有相关讨论。改变柱梁的线刚度比、摩擦系数进行计算分析发现,侧向约束影响系数将随着梁柱线刚度比的减小而减小,随着摩擦损失的增大而增大;忽略有效预应力的分布得到的结果与实际情况有偏差,这种偏差随着梁柱线刚度比的减小而增大,随着摩擦损失的增大而增大,因此预应力作用受侧向约束的影响应考虑有效预应力的分布。建议直接考虑次内力影响进行预应力混凝土结构的设计计算。
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