| 1. | Prestressed concrete sleepers - pretensioning type
预应力混凝土轨枕.预拉伸型 |
| 2. | One - time pretensioning analysis method for prestressed space truss
预应力空间网架结构一次张拉计算法 |
| 3. | Application of mathematic and physical statistic theory in pretensioning prestressing beam construction
数理统计原理在先张法预应力梁施工中的应用 |
| 4. | The article analyses negative effects of pretensioning for underground structure on waterproof coated membrane and introduces the way of treatment and quality control measures taken
分析了地下工程结构预应力张拉对涂膜防水层的负面影响，介绍了采取的有针对性的处理方法以及保证防水施工质量的控制措施。 |
| 5. | The program fearpv is applied to analysis the sealing structure of the pressure vessel model during the total process , including bolt pretensioning process , heating and compression process , thermostated heating and constant pressure process , and the cooling and decompressing process
应用反应堆压力容器瞬态密封有限元分析程序对反应堆压力容器模拟体密封结构进行了螺栓预紧、升温升压、恒温恒压、降温降压等全过程分析。 |
| 6. | The program fearpv is applied to 3 - d transient sealing analysis of nuclear pressure vessel during the total process , including bolt pretensioning process , heating and compression process , thermostated heating and constant pressure process , and the cooling and decompressing process . according to the analysis and computational results in this thesis , although the actual structure and work conditions of the pressure vessel in nuclear power station are much more complex than that of the pressure vessel model , the program fearpv still can get quite good convergence on the plasticity and
由本文分析计算可知，虽然电站核压力容器的结构及计算工况较压力容器模拟体复杂得多，然而反应堆压力容器瞬态密封有限元分析程序对塑性迭代和接触迭代仍具有很好的收敛性，数值稳定性好，得到的结果具有良好的规律性，在升温、升压、恒温、恒压、降温和降压等过程中其规律和压力容器模拟体基本相似。 |
| 7. | Furthermore , the internal forces and displacements when pretensioning the structure can be obtained easily by means of the suggested method under many conditions such as pretensioning a tendon , pretensioning several tendons simulta ? neously , pretensioning one strand in a tendon or pretensioning tendors by stages and in groups
当单根杆件施加预应力、多根杆件施加预应力、同一杆件各股分别施加预应力以及分级分批施加预应力时，采用本文提出的方法可方便求得各工况下预加应力全过程的网架内力和变位及其变化规律，并可一次性地完成预应力施加工作。 |
| 8. | Pretensioned space lattice structure is a new kind of space structure which develops very fast in recent years . through taking the pretensioning with tendon , the space lattice structure could effectively improve the weight of bearing , control the distortion of the structure , minimize the cost of the engineering
拉索预应力空间网格结构是近几年发展比较快的新型空间结构体系。在空间网格结构中通过拉索引入预应力，能够有效地提高结构承载力。控制结构变形，降低工程造价。 |
