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- The key of calculating flexure strength of UPPC beam is to determine unbounded prestressed tendon s ultimate value when the components are under their ultimate load ability. 计算UPPC梁(板)的抗弯强度,关键是确定构件在极限承裁能力时无粘结预应力筋的极限应力值。
- unbounded prestressed tendon 无黏结预应力筋
- Keywords: post-tension process,unbounded prestressed; overlong concrete structure. 无结预应力，后张工艺，超长混凝土结构。
- Based on the practical engineering,the author introduces design and construction of opening unbounded prestressed concrete slabs,which gives reference for other projects. 结合实际工程,介绍了无粘结预应力楼盖开洞改造工程的设计、施工等技术,为预应力工程改造设计和施工提供了经验和参考。
- The stress increments of unbonded prestressed tendon in the continuous beams subjected to both symmetrical and asymmetrical loads are analyzed. 计算了对称和不对称加载的无粘结预应力连续梁的应力增量。
- Taking an arch foot as an example,a practical m et hod was proposed to simulate the contact pressure of the prestressed tendon acco rding to the experiment. 以桥梁拱脚为例,依据实验结果提出了一种模拟预应力钢索与索道壁之间接触压力等代荷载的实用的方法。
- In accordance with the actual condition of experimental road load stress and temperature stress which are important for unbounded prestressed concrete pavement(PCP) are analyzed in detail. 结合试验路段的实际情况,对无粘结预应力路面的受力情况荷载应力和温度应力作了详尽的分析。
- On the basis of analyzing effect of prestressed tendon layout on internal force and thrust at springer, the principle of prestressed iendon layout for three-span prestressed concrete deck arch bridge is illustrated. 摘要在分析预应力布置位置对三跨上承式拱桥内力和拱脚推力影响的基础上，阐明了该类桥型预应力筋的布置原则。
- Little has been presented about the existing small curvature radius U-shaped prestressed tendon,whose practical elongation value and theoretical stretching elongation deviate greatly from each other. 基于现有规范小曲率半径U形预应力筋张拉伸长量缺乏陈述,而该类预应力筋实测伸长值和理论伸长值偏差过大。
- And the optimization result is got through the equation.The calculation indicates that preloading stress can be more homogeneous by adopting optimized project of prestressed tendon layout. 计算表明采用优化的配索方案可以让索塔的预压应力分布更加均匀，结构可以具备更高的整体安全度，并可以节省预应力材料。
- unbounded prestressed concrete structure 无黏结预应力混凝土结构
- prestressed tendon for self-anchoring 自锚预应力
- The middle strength spiral rib steel wires is an ideal substitute of prestressing tendon in precast hollow slab. 中强螺旋肋钢丝是预制空心板中的预应力筋的理想替代品,采用中强螺旋肋钢丝的预应力空心板的受力性能好,安全储备大。
- Unbounded Prestressed Concrete Construction Quality Control 无粘结预应力混凝土结构施工质量控制
- Research purposes: This paper analyzes the effect of the lateral prestressing tendon in top deck on the lateral calculation result of box beam. 研究目的:研究顶板横向预应力钢束对箱梁横向计算结果的影响,给箱梁结构设计提供借鉴和帮助。
- In the process of pseudo-static test, the stress of unbonded prestressed tendons is invariable approximately before the yielding of the specimens. 拟静力试验过程中，无粘结预应力混凝土扁梁框架节点试件在屈服之前，无粘结预应力筋的预应力值仅有微小波动，总的趋势是基本保持不变。
- In structure design, if this property is full used, it can help to decrease the dosage of the prestressing tendon, save anchorage device, reduce cost and minish invert arch. 工程设计中，若能充分利用部分预应力混凝土的这一特性，将可以减小预应力筋的用量，收到节约锚具、降低造价、减小反拱的效果。
- The girl started to unbind her braided hair. 女孩开始解开编起来的头发。
- According to the principle of prestressing structure, the under-storey prestressing tendon reinforcing plan can be adopted when the conditions can be met with. 根据预应力结构原理，采用楼层下面的预应力筋加固方案。
- Application of Long Span Unbounded Prestressed Concrete Girderless Floor 大跨度无粘结预应力砼无梁楼盖的应用
