裂纹最终致使弦杆断裂。
顶部弦杆将会被设计成中跨上临时螺栓的连接。
The top chords will be designed with a temporary bolted splice at mid-span.
采用标准节主弦杆焊胎可调措施，保证焊后尺寸。
设计顶部弦杆时，应在跨距中间有一临时螺栓铰接。
The top chords will be designed with a temporary bolted splice at mid-span.
分析比较了不同楼板假定对桁架弦杆的受力和配筋影响。
The influence of different floor hypotheses on the stress of truss chords and the reinforcing bars was compared.
附加弯矩导致桅杆的后背主弦杆受拉，传统的螺栓连接方法显得薄弱。
The additional bending moment results in the pulling state of rear back rod of the mast and the conventional bolt connection seems to be very weak.
本文讨论了敞开式桁架弦杆的平面外稳定性计算方法，并给出了计算实例。
The stability calculation of chords on open lattice beyond the main truss plane is discussed in the article. A calculation example is presented.
研究表明，无论支弦杆受拉或受压，随主弦杆拉力的增加，节点承载力逐渐降低。
The results show that the bearing capacity decreases gradually with the tension of chord increasing.
大跨度穹顶建筑物多采用钢桁架体系，钢桁架的杆件一般采用圆钢管，弦杆为曲线。
The long span dome structure are mostly steel truss structure. The member of steel truss are almost round steel tube, and curve chord.
计算弯曲弦杆的圆管节点设计强度时建议采用现有规范中适合平直弦杆的节点公式。
It is suggested that the design strength of the joints with curved chords can be calculated using the formulas suitable for the joints with straight chords in existing design codes.
结果表明：在钢桁梁桥弦杆内填混凝土能降低杆件的应力水平，提高桥梁的整体刚度。
The results show that the stresses of chord members of partially concrete-filled steel truss bridge are decreased, while its integral stiffness is increased.
受压弦杆内填混凝土能很好地协助钢管受力、减小钢管应变，提高受压节点的强度和刚度；
The concrete-filled in compression chord can help compression chord members very well, and reduce the steel tube strain;
顶端和底部水平面上的桁架通常被称为弦杆，而斜面或垂直方向上连接弦杆的则被称为腹杆。
The horizontal pieces forming the top and bottom of the truss are called the chords, and the sloping and vertical pieces connecting the chords are collectively called the web.
对常用钢屋架的弦杆腹杆截面积比值作了统计分析，以便设计者能更准确地确定计算原始参数。
Statistical analysis for cross-sectional area ratios of chord and web members commonly used in steel roof trusses are also provided for reference in predictng fundamental calculation parameters.
端面有间隙、无凸台对接是指在上、下套管之间留有一定间隙，上、下主弦杆端面同时接触对接。
End face with a gap, no boss butt is refers to the upper and lower casing left a certain gap between the upper and lower main chord rod end face at the same time contact.
不同的桁架节点形式，分析了桁架腹杆两端与弦杆的连接和弦杆与柱连接形式对结构受力性能的影响。
Different node form, the connection of web to truss chords and connection of truss chords to frame column are discussed.
吊索在吊点处不得有滑移和脱落，个别吊索应连接在被吊装结构的节点上，不得衔接在主弦杆中部和腹杆上。
There shall be no slip and fall off in the sling hanging point, individual sling should be connected in the hoisting structure nodes, no cohesion in the main chord and web members on the middle.
通过对与柱子相连接的弦杆的转动约束刚度进行修正，近似地考虑了与柱子相邻的桁架节间构件的约束作用。
The paper also approximately considers the restraints from the members of neighboring truss, by modifying the rotating restraint stiffness of chords connecting the columns.
针对塔式起重机标准节主弦杆因材料批次不同焊接后尺寸不同的问题，提出对塔式起重机标准节主弦杆焊胎的改进方法。
To solve the problem of the variety of the main rod's size after welding to adjustable tower crane standard section, because of the difference of the material batch, a novel approach is proposed.
端面有间隙、带凸台对接外形是指在标准节上部主弦杆上焊有定位凸台，定位凸台伸人另一标准节主弦杆内，上、下套管之间留有一定间隙配合定位。
End face with a gap, no boss butt is refers to the upper and lower casing left a certain gap between the upper and lower main chord rod end face at the same time contact.
针对规范主弦杆受拉则不考虑主弦杆轴力变化对节点承载力的影响，进行主弦杆轴力变化对节点承载力影响的非线性有限元分析，并与规范计算值比较。
The effect of the chord tension on the bearing capacity of the spatial penetrated joint were studied by FEA, the local code and the design bearing capacity criteria.
屋顶的最高表面的全部几何学能被定义为金牛座的内部表面。所有桁架弦杆的最高表面必须要遵循屋顶的表面几何学，将会产生需要的效果，顶部的弦杆会沿着他们的长度而扭曲。
As the top surface of all truss chords are required to follow the surface geometry of the roof, this has the effect of requiring that top chord boxes will twist along their length.
借助与桁架对应的梁的剪力图和弯矩图根据两个关系式可直接求出一般平面平行弦桁架任一根杆件的轴力。
For a complanate parallel chords truss, the axial forces of a member can be solved by the shear-diagram and two simple expressions.
通过与杆的纵振动波动方程与弦振动的一维波动方程中各个量的物理意义进行比较分析，得出扭转波是纵波的结论。
The result demonstrates that the twisting wave is longitudinal wave by anglicizing physical meaning of the longitudinal wave equation, transverse wave equation, and twisting wave equation.
介绍了CD型钢弦式测力锚杆的研发过程及其组成结构。
The CD type vibrating-wire force anchor is developed, which is made up of a few vibrating-wire stress gauges.
对单榀张弦梁的索力损失和腹杆损伤进行了试验研究。
The cable prestressing loss and web members damage experiment of a beam string structure was carried out.
对单榀张弦梁的索力损失和腹杆损伤进行了试验研究。
The cable prestressing loss and web members damage experiment of a beam string structure was carried out.
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