| 1. | These materials can not be pretensioned to avoid the slack condition resulting from asymmetrical loadings .
这些材料不能预加应力以免除由于非对称载荷所产生的松弛。 |
| 2. | Pretensioned spun concrete thin wall piles
先张法预应力混凝土薄壁管桩 |
| 3. | Pretensioned spun concrete piles
先张法预应力混凝土管桩 |
| 4. | Precast pretensioned concrete beam
预制先张混凝土梁 |
| 5. | Experimental study on properties of 16m pretensioned and prestressed concrete beam - slab structure
先张法预应力砼梁板结构性能试验研究 |
| 6. | Corrosion prevention of pretensioned structures is primarily accomplished through the use of high - performance concretes or the addition of corrosion - inhibiting admixtures
要求结构防腐蚀主要依靠高性能混凝土和加钢筋阻锈剂来实现。 |
| 7. | Based on the analysis on existing problems of rock bolting for complicated and difficulty roadways , the importance of rock bolting stiffness , especialy the pretensioned stress to bolting effects was expounded
摘要在分析目前复杂困难条件下锚杆支护存在问题的基础上，论述锚杆支护系统刚度，特别是预应力对支护效果的重要性。 |
| 8. | The distribution features of the stress fields caused by the pretensioned stresses of bolts and cables , and the effects of steel strip to the bolt pretensioned stress diffusion were analyzed through finite difference numerical modelling
采用有限差分数值计算软件分析了不同预应力下锚杆、锚索产生的应力场分布特征，以及钢带对锚杆预应力扩散的作用。 |
| 9. | This paper introduces the developing tendency of the space structure and the application of the pretensioned space lattice structure , summarize the analysis method and relation between lattice structure and pretensioned space lattice structure . dissertate the space pole - truss displacement method , tendon working principle , set forth the method of optimal design and whole process design . includes the use stage design and construction stage design of pretensioned space lattice structure
本文首先介绍了空间结构的发展趋势及拉索预应力空间网格结构的应用情况，概述了网格结构与拉索预应力空间网格结构的分析方法及其相互关系，论述了空间杆系桁架位移法，拉索作用机理，阐述了拉索预应力空间网格结构的优化设计及全过程设计的设计方法，包括拉索预应力空间网格结构使用阶段的设计和施工阶段的设计。 |
| 10. | The new concepts , such as the active supporting coefficient , the coefficient of strength utilization , the coefficient of pretensioned bolt length , the effective compressive zone , the coefficient of pretensioned stress diffusion , the framework and mesh structure of the effective compressive zone , and the critical supporting stiffness were put forward
提出锚杆主动支护系数、强度利用系数、预应力长度系数、有效压应力区、预应力扩散系数、有效压应力区骨架网状结构及临界支护刚度等概念。 |
