| 1. | The test study of model piles with branches and plates under repeatedly load on project performance
模型支盘桩在重复荷载作用下的工程性状研究 |
| 2. | Railway applications - track - test methods for fastening systems - part 4 : effect of repeated loading
铁路设施.轨道.紧固系统的试验方法.第4部分:重复荷载的影响 |
| 3. | ( 3 ) the fatigue behavior of concrete under uniaxial tension with constant amplitude cyclic loading but high temperatures is investigated based on test results
( 3 )进行了高温下混凝土在等幅重复荷载作用下的抗拉疲劳性能试验。 |
| 4. | 5 . some important dynamic responsive parameters are worked out about the reinforced earth structure under the impelling loads of train by model tests and analysis of dynamic characteristics
5 、通过对铁路加筋土挡墙在列车重复荷载作用下的室内模型试验和动力特性分析，得出了加筋土挡培在动力荷载作用下的一些重要动态响应参数。 |
| 5. | Bond behaviors of the interfaces between 3 surface patterns of prestressing tendons and concrete were compared , the bond mechanisms between the helical prestressing tendons and concrete were explained , and the main influencing factors on bond anchorage performance were discussed
根据试验结果，给出3种高强预应力钢筋在等幅重复荷载作用下的特征荷载值与应力水平上限的关系式。 |
| 6. | The result proves that composite beams with partial shear connectors have better performance to support fatigue load in that they can hardly be destroyed under general fatigue load if the welding quality is reliable
试验结果表明，重复荷载作用下的部分剪力连接组合梁具有良好的抗疲劳性能；在焊接质量有保证的情况下，处于正常使用范围内的疲劳荷载作用下的部分剪力连接组合梁几乎不会发生疲劳破坏。 |
| 7. | The thesis is a part of the project of national natural science foundation ? ailure criterion of concrete under multiaxial variable - amplitude fatigue loading . the following researches were carried out . ( 1 ) fatigue tests of concrete under uniaxial tension and tension - compression with constant amplitude cyclic loading were carried out
本文结合国家自然科学基金项目?砼变幅疲劳破坏准则( 50078010 ) ，开展了如下研究工作： ( 1 )进行了混凝土在单轴等幅重复荷载作用下的轴拉、拉-压疲劳试验。 |
| 8. | In view of the technical problems of softening of foundation soil and reduction of bearing capacity of the breakwater under the action of repeated wave loads during the execution of the second phase of the deepwater waterway regulation project in the changjiang estuary , tianjin port construction corporation has successfully developed safer , higher quality and highly efficient technology and special - purpose marine craft and machinery for laying deepwater sand blankets and offshore installation of prefabricated drains , which were more suitable for the working conditions in the changjiang estuary , and has also explored the construction technology for prefabrication of caissons with rubber anti - sliding plates , to ensure the efficient implementation of the engineering measures against softening of foundation soil
摘要针对长江口深水航道治理二期工程施工过程中遇到的堤身在波浪重复荷载作用下地基土出现软化、承载力降低的技术难题，第一航务工程局成功开发了适合长江口工况的安全、优质、高效的深水砂被铺设和海上塑料排水板打设施工工艺及专用船机设备，探索了一整套带橡胶阻滑板的沉箱预制施工工艺，确保了抗软化工程措施的有效实施。 |
