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truss beams
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  桁架梁
     This paper will do some te sts on th e spatial truss beams based on the finite element theory and analyze the factors influencing the potential integer stability, then draw some conclusions.
     针对实际工程中的空间桁架梁进行基于有限元分析的模拟试验,对此类桁架梁的整体稳定承载力影响因素进行了研究,并得出一些结论。
短句来源
     Based on the tests of 12 web steel truss beams ,the carrying capacities,failure modes and bending rigidities of the typical truss beams were provided.
     根据12根无比钢桁架梁的承载力试验,获得了典型桁架梁在竖向荷载作用下的极限承载能力、破坏模态及抗弯刚度。
短句来源
  “truss beams”译为未确定词的双语例句
     Problems in Developing Automatic Drawing System of the Working Drawings of Steel Truss Beams
     钢桁梁施工图自动绘图系统研制中的几个问题
短句来源
     Changshou Yangtze River Bridge that spans Yangtze River is one of huge bridges that belong to the Yuhuai railway, locates within Changshou county's borders. The bridge is comprised of (2@24+332)m PC simple supported beams+(144+2x192+144) m consecutive through truss beams+2x32m PC simple supported beams.
     长寿长江特大桥是新建铁路渝怀线上跨越长江的一座特大桥,位于长寿县境内,桥跨布置为2×24m+3×32m预应力混凝土简支梁+(144+2×192+144)m下承式连续钢梁+2×32m预应力混凝土简支梁。
短句来源
     ANALYTICAL METHOD OF MXAIMUM INTERNAL FORCE ANALYSIS IN TRUSS BEAMS
     分析“桁梁”最不利内力的解析方法
短句来源
     Fruit of the Combination of Preparedness Against War with Peacetime Use--Assembled Truss Beams for Railways
     "平战结合"的结晶——铁路拆装式桁梁
短句来源
     The bridge pier bases locate deep water region where the water flow is rushing, so, the construction of bases and truss beams was difficult.
     该桥桥墩基础位于水流湍急的深水区,基础施工、桁梁的架设均有很大的难度。
短句来源
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  相似匹配句对
     OPTIMIZATION DESIGN OF TRUSS COMPOSITE BEAMS
     桁架组合梁的优化设计
短句来源
     The Optimized Design for Aqueduct Combined by Truss and L Beams
     桁架L型梁组合渡槽的优化设计
短句来源
     Plane truss element
     平面桁架单元
短句来源
     On Truss Model of WebGIS
     WebGIS构架模式探讨
短句来源
     Progress in Hollow Beams
     空心光束的研究进展
短句来源
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  truss beams
A new device to damp mechanical waves in modular truss beams has been proposed in [1].
      
Damping of bending waves in truss beams by electrical transmission lines with PZT actuators
      
Continuum modelling of piezoelectromechanical truss beams: an application to vibration damping
      
This is because the tuning was obtained only from the truss beams, rather than the fingers, as designed.
      


In this paper a space analysis method for built-up system of arch trussed beam has been proposed. The physical model of continuum body is adopted. The structure is resolved into several compound elements and every compound element consist of three parts: arch, trussed beam and lateral brace. In the paper authors'll derive element stiffness matrix, mass matrix and formulas for computation of inner forces. Finally we'll compare the results of computation with that of experimentation and with the precise...

In this paper a space analysis method for built-up system of arch trussed beam has been proposed. The physical model of continuum body is adopted. The structure is resolved into several compound elements and every compound element consist of three parts: arch, trussed beam and lateral brace. In the paper authors'll derive element stiffness matrix, mass matrix and formulas for computation of inner forces. Finally we'll compare the results of computation with that of experimentation and with the precise from calculation by customary finite element method in the elementary theory of space member structures.

针对拱桁梁组合体系桥梁,本文提出一种空间计算方法。方法的物理模型采用连续体,并用有限元求解。整个结构划分为若干组合单元,每个组合单元包括拱、桁梁及竖杆横撑架三部分。本文将演引组合单元刚度矩阵、质量矩阵及内力计算公式。最后与试验结果作了比较,并用精确的空间杆系有限元计算作了验证。

In this paper a finite element method for the analysis of the lateral buckling of the arch-trussed beam system has been proposed. The structure is divided into arch and beam elements except the panels at the inclined portal where substructure elements are used. A computer program was developed to calculate the safety factor of buckling. The method was verified by a model test. As an application, the critical load of lateral buckling of a bridge under construction across the Yang tze River has been...

In this paper a finite element method for the analysis of the lateral buckling of the arch-trussed beam system has been proposed. The structure is divided into arch and beam elements except the panels at the inclined portal where substructure elements are used. A computer program was developed to calculate the safety factor of buckling. The method was verified by a model test. As an application, the critical load of lateral buckling of a bridge under construction across the Yang tze River has been computed.

本文提出了拱——桁梁组合体系桥梁的侧倾稳定分析方法.整个结构除拱门架部分划分为子结构单元外,其它均划分为连续体组合单元.作者演引了几何刚度矩阵及子结构单元与连续体单元间的变换矩阵。并编制了程序,对正在建造的一座长江大桥进行了稳定计算.计算结果表明结构有足够的侧倾安全度.此外,对该桥型做了侧倾稳定模型实验,试验结果证明本方法有良好的精确度.

In this paper, an inclined portal panel is regarded as a dynamical substructure so that the finite beam segment element method can be applied to truss bridges with inclined portals. The generalized stiffness matrix and mass matrix of the substructure in terms of mode parameters are formulated by linear transforms through a mode matrix [φ] of non-full-rank and the interior truss beam segment is treated by generalized beam elements. Finally, according to the geometric relationship between...

In this paper, an inclined portal panel is regarded as a dynamical substructure so that the finite beam segment element method can be applied to truss bridges with inclined portals. The generalized stiffness matrix and mass matrix of the substructure in terms of mode parameters are formulated by linear transforms through a mode matrix [φ] of non-full-rank and the interior truss beam segment is treated by generalized beam elements. Finally, according to the geometric relationship between the substructure and the adjacent beam segment, the elements are cooperated with the substructures to obtain the F for analyzing the torsion and bending vibration of truss bridges with inclined portals. Besides, a numerical example is given and the obtained results are compared with the results obtained by SAP5 program. The comparison shows that the presented method is of good accuracy.

本文将梯形桁梁桥的斜桥门架节间作为动态子结构,计算组成其非满秩的模态矩阵[Φ],然后通过线性变换得到该子结构相应于模态坐标的刚度阵和质量阵;对于中间桁梁段则用桁梁梁段单元进行处理。最后,通过斜桥门架子结构与相邻桁梁梁段单元相接界面上的几何关系,将斜桥门架动态子结构与桁梁梁段单元相结合,即得到梯形桁梁桥挠曲扭转振动分析的子结构与梁段单元相结合的有限元方法。文中给出了算例,并将结果与SAP5的结果进行了比较。结果表明,该方法具有很好的精度。

 
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