预应力混凝土桥梁,prestressed concrete bridge
1)prestressed concrete bridge预应力混凝土桥梁
1.Analysis and computation method of structure for the construction control ofprestressed concrete bridge;预应力混凝土桥梁施工控制结构分析计算方法
2.The concepts of restraint influence coefficient of steel on the time-dependent effects ofprestressed concrete bridges due to creep and shrinkage are present systematically, and the expressions are provided.系统地提出了预应力混凝土桥梁结构中钢筋对徐变和收缩时变效应的约束影响系数的概念,并给出了影响系数的计算公式,籍此提出了时变效应分析的钢筋约束影响系数法,建立了一套理论公式,可计算时变的钢筋和混凝土应力、应变及梁体竖向变形。
3.The relationship between stress and strain of concrete inprestressed concrete bridges is written as algebraic form within load duration and the equilibrium equations of internal force and compatibility conditions are introduced.首先将预应力混凝土桥梁中考虑收缩、徐变影响的任意时刻混凝土应力、应变关系在持荷时段内写成代数形式,引入内力平衡方程及变形协调条件后,提出了计入截面上钢筋位置、配筋率、预应力钢筋松弛、混凝土弹性模量随时间变化等影响的徐变效应分析的全量形式自动递进法,并建立了计算式,适用于任何形式的收缩、徐变特性表达式;基于建立的全量形式公式,可方便地求解任意时刻混凝土、钢筋的应力与应变和梁体竖向变形。
英文短句/例句
1.New Trends of the Development of Medium-Span Prestressed Concrete Bridges中等跨径预应力混凝土桥梁发展趋向
2.Reliability Evaluation of Highway Prestressed Concrete Bridge公路预应力混凝土桥梁的可靠度分析
3.Research on Modal Identification Method of Pre-Stressed Concrete Bridge预应力混凝土桥梁模态参数识别方法
4.The construction of CFRP tendons in vitro prestressed concrete bridgesCFRP筋体外预应力混凝土桥梁的施工
5.Design of 128m Combination Bridge with Prestressed Concrete Beam and Arch128m预应力混凝土梁拱组合桥梁设计
6.Analysis of ultimate loads of prestressed concrete multi-T girder bridge预应力混凝土多T梁桥的极限承载力
7.Study of Load Effects for Curved Continuous Prestressed Concrete Bridges;预应力混凝土曲线梁桥荷载效应研究
8.Mechanical Analysis for Prefabrication Stage of Prestressed Concrete T Beams on Bridge桥梁中预应力混凝土T形梁预制阶段力学分析
9.Research of Construction Control for Prestressed Concrete Continuous Beam Bridge;预应力混凝土连续梁桥施工控制研究
10.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
11.Torsion Design and Analysis of Curved Prestressed Concrete Girder Bridges;预应力混凝土曲线梁桥抗扭设计分析
12.The Research of External Prestress Reinforcement Technology for Concrete Bridges混凝土梁桥体外预应力加固技术研究
13.Seismic Isolation Design for Long-span Prestressed Concrete Continuous Girder Bridge预应力混凝土大跨连续梁桥隔震设计
14.On construction control of continuous prestressed concrete bridge浅议预应力混凝土连续梁桥施工控制
15.Reinforcement of Prestressed Concrete Curved Box Girder Bridge某预应力混凝土曲线连续箱梁桥加固
16.ANSYS MODELING OF REINFORCED CONCRETE CONTINUOUS BRIDGE预应力混凝土连续梁桥ANSYS建模
17.Load Experiment of Prestressed Hollow Concrete Plank Using in Bridge桥梁用预应力混凝土空心板荷载试验
18.The Application of Pre-stress Concrete U-Shaped Beam in Road-Bridges;预应力混凝土槽型梁在公路桥梁中的应用
相关短句/例句
pre-stressed concrete bridge预应力混凝土桥梁
1.Discussion on common problems of pore canal inpre-stressed concrete bridge;预应力混凝土桥梁孔道常见问题探讨
2.With the construction course of apre-stressed concrete bridge as a practical example,the long-term deformation of prestressed concrete bridges of the passengers-oriented railway is simulated and analysed by the age-adjusted effective modulus method and progressive finite element method in the paper.结合预应力混凝土桥梁结构的施工过程,采用按龄期调整的有效弹性模量法和有限元步进法结合实例对客运专线预应力混凝土桥梁结构的长期变形进行了仿真分析研究。
3)prestressed concrete beam预应力混凝土桥梁
1.Theoretic Calculation And Control Methods Research In Deflection Upward of Prestressed Concrete Beam;预应力混凝土桥梁起拱度的理论计算和控制方法的研究
2.Influence on reversed arch of creep inprestressed concrete beam is analyzed by combining with project under construction Jiepaiya bridge in the reach from Gucheng to Wudangshan of Xiangfan-Shiyan highway.结合襄樊 -十堰高速公路谷城至武当山段在建的界牌垭高架桥 ,分析混凝土徐变对预应力混凝土桥梁起拱度的影响 ,并提出控制桥梁过度起拱的设计方法和施工措施 。
4)prestressed concrete continuous bridge预应力混凝土连续梁桥
1.This paper used the model for the camber control of theprestressed concrete continuous bridge construction.将GM(1,1)模型用于预应力混凝土连续梁桥施工中预拱度的控制。
2.In this paper the authors establish an reliability analytical model of the global stability during the cantilever construction period ofprestressed concrete continuous bridges.建立了预应力混凝土连续梁桥悬臂施工期间整体稳定性可靠度分析模型 ,该模型突破了传统将支座视为理想铰支的简化方法 ,倾覆失效时考虑了偏心受压 ,使设计更为合理 ,并就此模型对各设计变量及参数作了较全面的分析 ,以研究它们对桥梁整体稳定性的影响程
5)prestressed concrete continuous girder bridge预应力混凝土连续梁桥
1.Variability in dynamic characteristics and comfort evaluation of aprestressed concrete continuous girder bridge;预应力混凝土连续梁桥振动特性变异及舒适度评价
2.A kind of establisment method of geometric models forprestressed concrete continuous girder bridge is given, and builds the box-girder constructional geometricmodels.针对预应力混凝土连续梁桥，提出了一种几何模型的建立方法；建立了箱形梁构造的几何模型。
6)Prestressed concrete simply supported beam预应力混凝土简支梁桥
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。
