| 1. | Study on stress variation around deep outlet for danjiangkou dam heightening
大坝加高试验温度应力仿真计算与原型监测对比分析 |
| 2. | Stress variation research of external tendons under live load in simple beam bridges
简支梁桥体外预应力筋受活载作用的应力变化 |
| 3. | The initial pre - stress variation in structure had no heavy influence
结构本身初始预应力的变化对结构的动力响应没有太大的影响。 |
| 4. | Stress variation of reinforced concrete columns over long periods of time while under constant load
钢筋砼轴心受压构件在长期荷载作用下的应力变化 |
| 5. | Purpose : to study the stress variation and distribution of the periodontium and the tooth initial displacement when the lingual fixate forces were applied to the depressed periodontal height
摘要目的：研究牙周支持高度降低状态下施加舌向集中力时，牙周组织的应力变化、分布规律和牙的初始位移。 |
| 6. | It was shown by the monitoring result that the variation of ambient temperature might result in stress variation in the components , and the middle cross - section of the structure was the most unfavoread one for the effect of ambient temperature
测试结果表明，环境温度的变化会引起构件应力的变化，结构中部截面是环境温度效应最不利的截面。 |
| 7. | Secondly , through the examination and observation of the structural model of the cast - in - place pre - stressed compound floor slab system , under the normal usage load , the normal usage limit - state and the failing load , we have validated the space working - feature of the structural model under variable loads , including the rigidity , the crack , failing - state , failing load and the stress variation of the pre - stressed bar , and so on
其次，通过对该体系的结构模型在正常使用荷载、正常使用极限状态和破坏状态下的试验研究，验证了现浇预应力复合楼盖体系模型结构在各种荷载作用下的空间工作性能，包括刚度、裂缝、破坏形态、极限承载力及预应力筋的应力变化状态等。 |
| 8. | The results show that in the later stage of the nucleation process , the maximum slip velocity is monotonically accelerating ; the slipping hot spot ( where the slip rate is maximum ) migrates spontaneously from a certain instant , and such migration is spatially continuous ; when the maximum velocity reaches a detectable order of magnitude ( at least one order of magnitude greater than the loading rate ) , the remaining time is 20 hours or more , and the temporal variation of slip velocity beyond this point may be used as a precursory indicator ; the average slip velocity is related to the remaining time by a log - log linear relation , which means that a similar relation between rate of microseismicity and remaining time may also exist ; when normal stress variation is taken into account , time scale of such processes can be extended by about 2 times
结果表明，在成核的后期阶段：最大位移速率单调加速增加；滑动热点（最大滑动速率处）在后期阶段开始自发性迁移，且在空间上连续；当最大滑动速率达到可以明显探测的量级时（高于载入速率一个数量级以上） ，倒计时间为20小时或更长一些，这时的速率变化可作为临震预测标志；平均滑动速率与倒计时间的关系在临震阶段呈对数线性趋势，由此可推测微震活动增长率与倒计时间同样存在对数线性关系；正应力的变化对上述时间尺度有延长作用，使之大致增加到原数值的2倍。 |
| 9. | This article guarded against explosions the heater to skid the block comprehensive support the structure to carry on the analysis ; found the question which this support structural design exists and has made the corresponding improvement design ; caused to synthesize the support the structure while to satisfy the intensity and rigidity reduced the whole weight ; tends to the optimized design in the material use ; through to synthesizes the support the finite element model to exert the different force of inertia ; obtains under the different load to synthesize the support stress variation rule , thus determine bearing capacity of comprehensive support
摘要本文对防爆加热器撬块综合支架的结构进行了分析，找到该支架结构设计上存在的问题并作了相应的改进设计，使得综合支架的结构在满足强度和刚度的同时减轻了整体的重量，在材料的利用上趋于优化的设计；通过对综合支架的有限元模型施加不同的惯性力，得出不同载荷下综合支架应力变化规律，从而确定出综合支架所能承受的最大惯性力。 |
