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- VSPT-PLUS plastic bellow has smaller friction coefficient, so it is used in the prestressed strand of large-span bridge so as to reduce appropriately reinforcement and save the prestressed steel. VSLPT PLUS 塑料波纹管 ,因其摩阻系数明显较小 ,故在大跨度桥梁预应力钢束应用中 ,可适当减少配筋 ,节约预应力钢材。
- Experimental Study of Full Process of External Prestressing Strand Stress Increment of Concrete Box Girder 混凝土箱梁体外预应力筋应力增量的全过程试验研究
- Approach to Treatments of Strand Extensibility Exceeding Standard at the Time of Post-tensioned Prestressing Strand Stretching 后张预应力钢绞线张拉伸长值超标的处理探讨
- The formula is proposed to calculate the maximum distance of prestressed strands for ensuring the uniform distribution of prestressing along the penstock. 得到了预应力筋束最大间距的计算方法,以保证压力管道各横断面能够建立相同均匀的预压应力;
- She twirled a strand of hair round her finger. 她把一绺头发卷绕在手指上。
- prestressing strand 预应力力筋
- very long prestressing strand 超长预应力柬
- Improvement such as adding prestressed strands and reinforced bars is available to abate high stress concentration and avoid cracking of concrete. 可以采取在边箱上翼板内增设纵向预应力束、增设边箱斜腹板内纵向非预应力钢筋等技术措施来改善边箱斜腹板的受力情况,避免混凝土裂缝出现。
- area of prestressing strand 钢绞线区
- During the removing of two post-tensioning PC continuous bridges,their duct grouting is investigated and some prestressed strands are collected. 在两座后张法PC连续梁桥拆除过程中,现场调查得到了该两座桥的预应力孔道压浆情况和预应力钢绞线试样。
- The Strand is one of London's busiest thoroughfares. 斯特兰德大街是伦敦最热闹的要道之一。
- The methods are suggested to determine the tensile steps and the tensile forces of prestressed strands for decreasing the secondary bending moment along the axial of the penstock. 提出了预应力筋束分步张拉施工与荷载控制方法,以减小管壁混凝土的轴向次弯矩。
- A single strand lives for up to seven years. 一根头发的寿命可长达7年。
- The strand party radio to request help. 受困的旅游团用无线电请求帮助。
- The filament strand alternates S and Z twist. 长丝纱的一段为S捻,一段为Z捻,两种捻向交替排列。
- Later other prestressing methods with parallel wire or strand tendons were also used. 后来,又使用其它的预应方法,如利用平行钢丝或钢绞线施加预应力。
- A binder is necessary for strand integrity. 粘结剂对纤维的集束性能是必需的。
- A roving is made and then drawn to a fine strand. 先制成纤维条子,再将其牵伸成细纱线。
- The strand party radios for help . 这个受困旅游团用无线电发出求救信号。
- Additional concentric prestressing was required in the pier. 墩内要求另加集中压力。