本文提出了高低支腿龙门吊宽幅双导梁法这种新的桥梁工程施工方法。
A new technique is put forward that high-low brace gantry crane wide double guiding girder method to construct bridge.
该机采用连续双导梁的结构形式，作业程序简单，安全可靠，对环境适应性强。
The machine uses continuous double guide beams, it is safe and simple to operate, and has a better adaptability to environment.
采用SAP5计算程序，对某架桥导梁实例计算，其计算结果与实测结果相符。
A guiding beam as an example is calculated by program of SAP5, both the calculating and practical results are coincide.
详细介绍了对双导梁式架桥机天车、行走系统、有效工作长度及预制梁安装就位的改进情况。
The text detailedly introduced crown block, running system, availability work period of bridge girder erection equipment and improve case for precast beams install.
以A NSYS为分析工具，对铁路架桥机导梁焊接缺陷进行有限元分析，为导梁进行结构安全评定提供依据。
The finite element analysis of the bridge-erecting machine 'beam under welding defect conditions is conducted with ANSYS program, which provides a basis for the structural safety assessment of beam.
导梁的长度、刚度及重量在顶推施工阶段对顶推主梁的内力有着重要的影响，其合理配置是全桥顺利顶推的关键。
The length, rigidity and weight of a launching nose have significant influences on the internal forces of incrementally-launched main girder at construction stage.
开关的微驱动部分由导磁的悬梁、扭梁和线圈、永磁体组成。
The microactuated part consists of cantilever, torsional girder, planar coils and permanent magnets.
一种小断纬是出现在织口到胸梁的布面上，另一种小断纬是出现在导布辊引出的布面上。
One small breaking weft is in the cloth which is between fell of cloth and breast beam, and the other is in the cloth that is from guiding roller.
由微分几何基本公式导得圆弧曲线梁中预应力等代荷载的精确公式，预应力钢索在曲梁中竖弯与平弯均较平缓，此时公式可得以简化。
A precise formula for equivalent load of prestressing force in curved girder of arc form is derived from the fundamental formulae of differential geometry.
引入运算符号，导得带任意个集中质量的梁弯曲振动频率方程和振型函数新的解析表达式。
By means of a symbol of operation, the new analytical expressions of the frequency equation and the modal function of lateral vibration of a beam with lumped masses were derived.
研究钢筋混凝土梁的动刚度随外荷载的变化规律，对准确分析其动力响应有极其重要意义。采用振型叠加法，导得了弹性加载纯弯梁的动力分析理论，给出了确定梁动刚度的方法。
In this paper the theory of dynamic analysis is proposed by adding again and again normal modes of vibration of rc (reinforced concrete) beams under the elastic loads, and an example is given.
按弹性力学理论导得了体外预应力钢箱梁桥的变形分析方法 ，建立了简支索梁的基本概念及假设和基本平衡方程 ，采用伽辽金能量原理得到了平衡方程的解答。
Based on the elastic concept this paper proposes the chart analysis method for estimation of seismic response of the selfanchored suspension cable bridge with steel box stiffening girder.
按弹性力学理论导得了体外预应力钢箱梁桥的变形分析方法 ，建立了简支索梁的基本概念及假设和基本平衡方程 ，采用伽辽金能量原理得到了平衡方程的解答。
Based on the elastic concept this paper proposes the chart analysis method for estimation of seismic response of the selfanchored suspension cable bridge with steel box stiffening girder.
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