预应力混凝土箱梁,prestressed concrete box girder
1)prestressed concrete box girder预应力混凝土箱梁
1.Design and construction of 40m double trackprestressed concrete box girder;40m双线预应力混凝土箱梁设计与施工
2.To improve the accuracy of deformation calculation,Timoshenko beam model is applied to evaluate the influence of shear deformation ofprestressed concrete box girder.对大跨度预应力混凝土箱梁结构,剪切变形对总的变形和徐变有明显影响。
3.Based on the available long-term deflection prediction data of Humen bridge,we analyze the creep deformation ofprestressed concrete box girder of large span continuous rigid bridges in several stages theoretically by use of FEM so as to find out the relation between mid-span upper and lower edge stress dispersion and the structure creep def.根据已测得的虎门大桥连续刚构桥挠度长期观测数据,建立有限元模型,分阶段对大跨连续刚构桥预应力混凝土箱梁的徐变变形进行理论分析,探讨主梁上下缘应力差与结构徐变的关系。
英文短句/例句
1.Analysis of Bearing Load Capacity and Crack for Prestressed Concrte Box Girder Bridge;预应力混凝土箱梁承载力与裂缝研究
2.Temperature influence of reinforced concrete box beam on test预应力混凝土箱梁试验时的温度影响
3.Research on the Prestress Losses in the Vertical Pre-stressed of PC Concrete Box Girder Bridge;预应力混凝土箱梁桥竖向预应力损失的研究
4.The post tensioned prestressed construction control points of prestressed concrete box beam预应力混凝土箱梁后张法预应力施工控制要点
5.Reliability Analysis of Existing Prestressed Composite Box Girder Bridge Superstructures预应力混凝土箱梁桥主梁的可靠性分析
6.Geometric Shape Control of Precasting of PC Box Girder Segments by Short-Line Match Method预应力混凝土箱梁短线法节段预制线形控制
7.The 35 m span post stretching prestressed concrete box beam prefabricated construction35m跨后张拉预应力混凝土箱梁预制施工
8.Key issues of prefabrication of the pre-stressed concrete box segments using the short line casting method预应力混凝土箱梁短线台节段预制关键技术
9.Approach to Cracking Mechanism and Preventive Measures of Large-span Prestressed Box Beam大跨径预应力混凝土箱梁开裂机理与预防措施
10.Research on the Web s Work of the Long-span Prestressed Concrete Box Girder Bridge;大跨预应力混凝土箱梁桥腹板受力研究
11.Research on Laterally Mechanical Behavior of Pre-Stressed Concrete Box-Girder with Construction by Stages分段施工预应力混凝土箱梁横向受力行为研究
12.prestressed concrete box girder用预应力混凝土建成的箱形梁
13.Test Research into the P.C. Continuous Curved Box Girder Bridge;预应力混凝土连续弯箱梁桥试验研究
14.Reinforcement of Prestressed Concrete Curved Box Girder Bridge某预应力混凝土曲线连续箱梁桥加固
15.Construction of the prestressed concrete continuous box beam cantilever casting预应力混凝土连续箱梁悬臂灌注施工
16.Crack Disease of Prestressed Concrete Continuous Box Girder预应力混凝土连续箱梁裂缝病害分析
17.Temperature Field Analysis for the Prestessed Concrete Box Girder预应力混凝土箱型轨道梁温度场分析
18.Stress Analysis of PC Box Girder under Three-Directional Prestresses;考虑三向预应力效应的混凝土箱梁应力分析
相关短句/例句
PC box girder预应力混凝土箱梁
1.The phenomenon of web and anchorage zone cracks of continuousPC box girder is fairly common.针对目前预应力混凝土箱梁腹板开裂现象比较普遍这一现象,拟从预应力混凝土箱梁顶板横向预应力框架效应查找开裂原因。
2.A long term field monitoring was performed over the creepage ofPC box girder of Jinbin Light Rail.对津滨轻轨预应力混凝土箱梁的混凝土徐变发展规律进行长期的现场监测。
3.However, China highway and bridge criterions don\"t make detailed regulations about temperature gradient ofPC box girder bridge.而现行的中国公路桥梁规范对预应力混凝土箱梁的空间温度梯度并未做详细的规定,研究和探讨符合真实情况的混凝土箱梁桥最不利温度梯度,具有重要的理论意义和实用价值。
3)prestressed concrete box beam预应力混凝土箱梁
1.This result has a certain meaning to calculate the temperature stress and deflection ofprestressed concrete box beam.通过有限元程序ANSYS模拟温度场的方法和某桥实测数据比较,分析了影响预应力混凝土箱梁模型温度场分布的因素,得出了太阳辐射吸收系数对计算结果的影响比较大的结论,该结论对计算预应力混凝土箱梁的温度应力和挠度有一定的意义。
2.Some problems existing in the construction ofprestressed concrete box beam are in- troduced, and some views and measures are put forward in the paper.介绍了预应力混凝土箱梁施工中存在的问题，提出了自己的见解及相应的措施。
4)pre-stressed concrete pre-fabricated box girder预应力混凝土预制箱梁
bined with the pre-fabrication process of the in-situ box girder of south junction J1 Bid bridge of Runyang Bridge,the article introduces in detail the construction technology ofpre-stressed concrete pre-fabricated box girder by post-tensioning method and the relative points for attention in the course of construction.该文结合润扬大桥南接线J1标桥梁现场箱梁的预制过程,具体的介绍了后张法预应力混凝土预制箱梁的施工工艺,以及在施工过程中应注意的有关事项。
5)prestressed concrete continuous box girder预应力混凝土连续箱梁
1.Now cantilever construction ofprestressed concrete continuous box girder as the chief construct methord in engineering has gone intio the rang of mature.预应力混凝土连续箱梁的悬臂施工作为大跨径桥梁的主要建设方式日渐成熟,但此类桥梁设计、施工中仍然存在着某些关键问题其处理方式比较含糊。
6)simple prestressed concrete beam预应力混凝土简支箱梁
1.Taking Guangzhou Station construction along Wuhan-Guangzhou Passenger Line,this paper introduces and analyzes new standards and techniques ofsimple prestressed concrete beam construction,providing a general knowledge for the readers with construction control in this project.文章以武广客运专线新建铁路新广州站及相关工程为例,介绍和分析高速铁路预制预应力混凝土简支箱梁施工的一些新标准和工艺,让读者对高速铁路预制预应力混凝土简支箱梁的施工控制有概貌性的认识。
延伸阅读
通用机械：预应力混凝土压力容器用预应力混凝土制成的压力容器。20世纪50年代末期﹐法国用预应力混凝土压力容器作气冷反应堆的压力壳。以后许多国家均在气冷反应堆上采用预应力混凝土压力容器﹐设计压力已达6兆帕。由于轻水型反应堆和煤转化用的钢质压力容器的尺寸不断增大﹐越来越难以用钢制造﹐在运输上也有很多困难﹐工程界正在进行以预应力混凝土压力容器代替钢质压力容器的可行性研究。混凝土的抗压性能好﹐但抗拉性能很差。为使混凝土在承受拉应力时不破坏﹐在其内部埋入高强度钢缆或钢筋﹐然后对钢缆或钢筋施加预拉伸应力﹐使混凝土承受较高的预压缩应力。这样﹐当预应力混凝土容器内承受工作压力时﹐作用在混凝土筒壁上的拉应力便被预压缩应力所抵消﹐而混凝土不承受拉应力。在容器内壁有一层薄的钢制衬里﹐以防止介质泄漏。用于高温的容器﹐在衬里层上加有绝热层﹐以防止混凝土温度过高。预应力混凝土压力容器有两个显著优点﹕ 可采用普通的设备在现场施工建造﹐容器的尺寸不受限制。当金属压力容器因直径过大﹑器壁过厚等原因而无法运输或制造时﹐可选用预应力混凝土压力容器。 这种压力容器的破坏模式与钢制压力容器不同﹐它是逐渐破坏的。钢衬里如有泄漏﹐介质沿混凝土的渗透是一个较慢的过程。此外﹐钢缆是互不相连的﹐如果个别钢缆出现裂缝﹐裂缝不会由一根扩展到另一根﹐因而容器具有高度的安全性。
