预应力孔道,prestressed duct
1)prestressed duct预应力孔道
1.To counter the insufficiency of numerical analysis for long-span bridge pier top block,study of key factors of the numerical analysis such as unit selection,mesh generation,mesh density,model simplification,prestressed duct effects,and submodel selection scope was carried out.针对目前大跨径桥梁墩项块数值模型建立及分析方法上的不足,研究了大跨径桥梁墩顶块数值分析的单元选择、网格划分、网格密度、模型简化、预应力孔道影响及子模型选取范围等关键问题。
2.Beforeprestressed duct grouting,using vacuum pump to exhaust air in the duct,made the duct a vacuum status,then using grout machine to pour cement mortar in theprestressed duct to ensure the saturation and compaction of cement mortar,the final construction quality can be guaranteed.在向预应力管道内压浆前,利用真空泵抽吸管道内空气,使管道内基本达到真空状态,同时利用压浆机将水泥浆压入预应力孔道,从而保证孔道内水泥浆的饱满度与密实度,最终施工质量得到保证。
英文短句/例句
1.Experiment on the Friction Loss of Prestressed Dust and Parameter Identification预应力孔道摩阻损失试验与参数识别
2.Techniques for Double Probe Straight Advancing Detection of Prestressed Aperture-Disease双探头直射检测预应力孔道病害技术
3.Structural monitoring and assessment for a cable-stayed bridge based on dynamic test东江南特大桥预应力孔道摩阻损失试验研究
4.Construction Technology of Vacuum Grouting for Prestressed Pore in Bridge桥梁预应力孔道真空辅助压浆施工技术
5.Study on the Impact of the Mechanics Characteristics of P.C Bridge Cross-section on Post-tensioning Prestress Porthole by Numerical Analysis Method;后张预应力孔道对P.C桥梁截面受力特性影响的数值分析研究
6.Application Study of Grouting Technology for Prestressed Duct Based on High Performance Material基于高性能材料的预应力孔道灌浆工艺应用研究
7.Influence of Prestressed Duct Type and Steel Strand Greasing on Stretching Effect预应力孔道类型和钢绞线涂油对张拉效果的影响
8.Experiment on the Friction Loss of Hole and Anchorage Loop Mouth Of 32-meter Simply-supported Box Girders for Passenger Dedicated Line客运专线现浇箱梁预应力孔道和锚口摩阻损失试验
9.Test and Research on the Frictional Loss of Prestress in the Corrugated Pipe Duck;波纹管孔道预应力摩擦损失检测与研究
10.The Studying of Prestressed Concrete Duct Grouting Experiment For Naming Changjiang Second Bridge;南京长江二桥预应力混凝土孔道灌浆试验研究
11.Test method of friction coefficient in post-tensioned cable hole后张预应力锚索孔道摩阻系数测试方法
12.Design and analysis of new double-hole asymmetric prestressed reinforcement slab双孔预应力非对称无砟轨道板设计与分析
13.Experimental Investigation of Friction Loss of Tendon Duct for Long-Span PC Bridge大跨度预应力混凝土桥孔道摩阻试验研究
14.Grout quality testing in prestressed ducts with impact-echo method冲击回波法检测预应力束孔管道压浆质量
15.Experimental Research of Ultimate Bearing Capacity of Frame Column Section with Two-way Placed Ducts for Tendons or Strands under Axes-Pressure;双向留设预应力筋孔道框架柱轴向受力时截面承载力试验研究
16.Application of supersonic detection to irrigation quality of prestressed concrete超声法检测预应力混凝土预留孔道灌浆质量的研究
17.Analysis of Structural Bearing of Prestressing Concrete Duct Grouting and Its Construction Gist预应力混凝土孔道压浆的结构受力分析及施工要点
18.Tendon Friction Coefficient Test to 60m Box Girder of Qingdao Bay Bridge青岛海湾大桥60米预应力混凝土箱梁孔道摩阻系数试验研究
相关短句/例句
vertical pre-stressed duct竖向预应力孔道
1.The weakening of web sections byvertical pre-stressed ducts on two actual pre-stressed concrete continunous box girder bridges is analyzed.以两座预应力混凝土连续箱梁桥为工程背景,分析竖向预应力孔道对腹板截面的削弱。
3)transverse prestress duct横向预应力孔道
4)two-way ducts for tendons or strands双向留设预应力筋孔道
5)preparing pipe预应力管道
1.Shallow to talk prevention measure of prestresspreparing pipe pressing grout common disease浅谈后张预应力管道压浆通病的预防措施
6)post-tensioning high performance grouts后张预应力孔道高性能灌浆料
延伸阅读
垂直孔道分子式：CAS号：性质：又称实验孔道(experimental channel)。反应堆辐照孔道的一种。供进行实验研究用，通过它将各种实验样品放入堆内，由堆芯产生的中子或γ射线对其进行辐照。垂直孔道有干孔道和湿孔道，多用于堆内样品照射。详细用途见水平孔道。
