prestress

prestress

1. The Analysis of FRP Residual Stress and the Fiber's Best Prestress Range

FRP残余应力及纤维最佳预张力分析

2. Producing and application of GLY high-strength large-span prestress hollow slab

GLY高强大跨预应力空心板的生产与应用

3. According to the fact that most defects of this type of bridge are related to loss of prestress,the main method to reinforce old T-frame bridges is to compensate loss of prestress by increasing prestressed tendons.

T型刚构桥的大部分病害均与预应力损失过大有关,因此目前对T型刚构旧桥加固的方法主要是通过增加预应力索及粘贴钢板等来补偿混凝土的预应力。

4. YUAN Xing-fei,DONG Shi-lin.Application of integral feasible prestress of tensegrity cable domes [J].Journal of Civil Engineering,2001,34(2) :33-37.

[2]袁行飞,董石麟.索穹顶结构整体可行预应力概念及其应用[J].土木工程学报,2001,34(2):33-37.

5. Ⅱ prestress concrete crosstie

Ⅱ型预应力混凝土枕

6. A Method for Reducing the Prestress Loss due to Elastic Compression of Concrete

一种降低混凝土弹性压缩预应力损失的方法

7. Compared with the wind velocity and the prestress,the membrane angle had a marked influence on the wind-induced dynamic factor of the membrane displacement.

与风速和预应力水平相比,膜面倾角对膜面位移风振系数的影响更为显著,并对不同倾角的膜面位移风振系数提出了建议值。

8. This paper introduces structure of waveform steel web prestress concrete box girder and construction method for several bridges.

介绍了波形钢腹板预应力混凝土箱梁的结构和几座桥梁的施工方法。

9. It is very difficult to construct prestress anchored bar in the area near sea that contains many highly confined aquifers.

介绍了锚杆的构造、作用机理、施工工艺以及决定锚杆施工质量的关键技术。

10. The conceptions contain: design conception of whole prestress, partial prestress design conception, design conception of prestress equilibrium load and un agglutinating partial prestress.

介绍了预应力混凝土技术的几种设计概念,即全预应力设计概念、部分预应力设计概念、预应力筋平衡荷载的设计概念、无粘结部分预应力。

11. The paper mainly introluces the stretching method for tendon, reasons for retraction of male cone, the influence of male cone retraction on prestress value, and measures adopt in dealing with extra loss of prestress.

介绍预应力筋张拉方法、锚塞回缩产生的原因、锚塞回缩对预应力值的影响程度以及其对预应力值过大损失的处理方法和措施。

12. Their compact dimensions make them particularly suitable for service in extremely constricted structures where prestress and compression forces are to be measured.

他们紧凑的尺寸使他们特别适合于测量非常狭窄的结构里的压力和预应力。

13. But after several days, with the disappearance of the water, the increased stress will disappear gradually, then the anchorage prestress will basically recover to its initial state.

但降雨过后，随著裂隙水的消散，增加的锚固力也会消失，基本上会回到降雨前的预应力水平。

14. strengthening by external prestress

体外预应力加固

15. Application of External Prestress for Viaduct in Tianjin

体外预应力在天津城市高架桥中的应用

16. The composition of the exterior prestress concrete structure

体外预应力混凝土结构的组成

17. pretensioning method prestress

先张法预应力

18. pretensioned prestress concrete hollow beam

先张法预应力空心梁

19. Pretensioned system high prestress concrete saddle roofing, called saddle plate is initiated by NORMCO in west germany in 60's . It is applied for more than 3,000,000 sqm since it found.

先张法高效预应力混凝土马鞍形屋面板学名负高斯曲率板,俗称马鞍板.上世纪六十年代由西德NORMCO工程师首创,至今原西德马鞍板制造公司已经推广应用了三千多万平方米.

20. The Out-body Prestress Reinforcing Design Ways of Highway Beam Bridge

公路梁桥体外预应力加固设计方法

21. Calculation for equivalent loads of prestress in hexahedron element

六面体单元下预应力等代荷载计算

22. By adjusting to prestress in longitudinal beams, the effect of the deflection on the transverse structure is reduced to a minimum level.As a result, the structure can get to be optimized.

再通过对纵梁预应力的调整，使各种计算工况下纵梁产生挠度对横向结构影响最小，从而达到结构优化的目的。

23. It is analyzed that in the constructing of reinforced concrete hollowcore slab and girder by post tensioning prestress method,temperature stress is the main reason of visible cracks arising.

分析了在后张法预应力钢筋混凝土空心板梁施工中,温度应力是预制梁出现“可见裂缝”的主要原因,干缩引起的微细裂缝对“可见裂缝”的出现具有一定的影响,并提出预防措施。

24. The residual stresses in"as cured" and prestressd ARALL were analysed, and the relationships between residual stress and prestress at different temperatures were given.

分析了层板的预应力、层间残余应力和温度之间的关系并给出了表达式;

25. The calculating of initial prestress distribution is basic and important for analyzing of double-layer cable structure.

初始预应力分布的计算是双层索结构受力分析的基础。

26. It is important to calculate the initial prestress for cable-truss initial state form-finding.

初始预应力分布计算是索桁架初始态找形的重要内容。

27. the distribution of initial prestress

力密度

28. Since high pretension force exists in inclined cables before live loads are applied, the initial geometry and the prestress of cable-stayed bridges depend on each other.

包括桥的几何学和预应力分配的初始形状是使用双重迭代的方法决定的,也就是,一个平衡迭代和一个形状迭代。

29. The objective of the research is to reduce the beam's depth by bi prestress in order to save money and beautify landscape.

双预应力梁桥的研究就是试图通过双预应力体系降低梁高,从而达到节省造价,美化景观等目的。

30. It is found that monitored values are basically accordant with theoretical values and the relative error increases with the elongation of the prestress pipeline but the max value is 11.4%.

发现监测值与理论计算值基本吻合，二者之间的相对误差随着预应力钢束的增长而增大，但最大仅为11.4%。

31. At the same time, with the effect of prestress force、changes of temperature and driving of vehicle, curved beam appears lateral displacement, bearing bears transverse reactions.

同时,弯箱梁在预加力、季节温差以及车辆离心力的作用,梁体又呈现向外侧的横向变形,支座也承受横向推力;

32. post-tension cohesive prestress

后张有粘结预应力

33. Application of Post-Tensioning Prestress without Bond to Digestion Tank

后张法无粘结预应力在消化池中的应用

34. Prestress stretching control measures in post-tensioned construction

后张法预应力张拉控制措施分析

35. Construction of post-extensive method prestress

后张法预应力施工

36. Prestress by post-tensioning method

后张预应力

37. This article explains a simplified method of calculation for loss of prestress of a tendon due to draw in of anchorage counting counter friction of a sheath in various tensioning situation.

在各种张拉力场合下,考虑管道反摩擦的预应力钢筋回缩损失的简化计算。

38. The prestress was applied on the flange deck to improve the ultimate load bearing capacity. When the beam suffered the negative moment, prestressing technique was used to the CFTs to prevent the concrete cracks developing in the CFTs.

在梁的下翼缘可以施加预应力提高极限承载力 ,同时在梁承受负弯矩处可对小径钢管砼施加预应力来缓解砼的开裂 .

39. Shear lag is reduced for prestress in serviceability limit state .

在正常使用状态下,预应力平抑了箱梁剪力滞效应。

40. This paper also analyzes the unfavorable influence on loaded force of web from consortion, creepage and prestress as well as provides relative measures and design suggestions.

在此基础上，本文还浅析了扭转、徐变及预应力等对腹板受力的不利影响，并提出了相应的措施及设计建议。

41. Study on Optical Fiber Bragg Grating Prestress Sensors at Anchor Position

基于光纤光栅的锚端预应力传感器的研究

42. THE CRITICAL FREQUENCY OF A ROTOR BASED ON PRESTRESS METHOD

基于预应力法的转子临界转速研究

43. An Assessment Method of the Loss in Prestress Caused by Columns

多排柱引起梁、板预应力损失的估算方法

44. large scale prestress aqueduct

大型渡槽

45. large-scale prestress rectangular flume

大型预应力矩形渡槽

46. Application of prestress truss cable in large cross section coal roadway

大断面煤巷预应力桁架锚索的理论与实践

47. The experimental results indicate that this sensor has good reproducibility and high precision, and that it can be used to monitor prestress at anchor position.

实验结果表明，该传感器重复性好，测量精度高，可以满足预应力锚端监测的需要。

48. In regard to the main bridge, the prestress concrete continuous beam bridge, the internal force and the disposition of pre-tress steel are studied in brief.

对引桥即简支梁桥进行内力、配筋计算，强度验算、使用阶段裂缝宽度验算和变形验算；

49. The optimized reposition balance method for force-finding analysis usually is employed to accurately evaluate the self-balance prestress of ten.

对索膜结构找力分析的优化复位平衡法,能够对给定的拓扑曲面求解获得精确的自平衡预应力分布。

50. And the conclusion is considered to be that prestress loss is the main factor for three-dimensional stress, then the local temperature difference.

对结构空间受力影响最大的因素为预应力效应、其次为沿梁高非线性温差的结论;

51. The Suggestion on the Prestress of Steel Cable

对钢绞线预应力有关问题的建议

52. The various characters and change tendency of anchorage prestress ,as well as the effects of group anchorages,etc.

对锚固预应力变化特征、趋势及群锚效应等进行了综合分析；

53. The general formulation of prestress anchoring loss and the long-tern flexure deformation calculating of beams is deduced.

导出了具有一般意义的预应力锚固损失以及梁的长期挠曲变形计算公式。

54. The formula for calculating the prestress loss is presented for the prestressed concrete cylindrical oil tank.

导出了适用于考虑圆柱形预应力混凝土油罐预应力损失计算的公式;

55. Keywords laminates;prestress;residual stress;

层板;预应力;残余应力;

56. Artificial pile foundation set into rock,skirt building with prestress plane floor and tower building with steel reinforced concrete(SRC)structure are adopted in the project.

工程基础采用人工挖孔嵌岩灌注桩,裙楼采用预应力平板楼盖,塔楼采用钢骨混凝土结构。

57. interference prestress release

干涉预应力释放

58. The prestressed anchors will get accessional vertical loads that deteriorate its internal force and three prestress losses exit in the prestressed anchors as the water level is changed.

并分析了锚索上受到的竖向附加荷载,这将恶化锚索的受力,同时,锚拉桩在水位变动带存在三种预应力损失。

59. Unbound Prestress Used for Improving Reliability of Concrete Bridge

应用无粘结预应力提高混凝土桥耐久性

60. The approach of subentry calculating the total loss of prestress needs quite amount of work and the process is complicated.

我国"规范"采用分项计算预应力总损失,计算工作量大,过程繁杂,针对这一问题提出预应力总损失的简化计算方法。

61. The Application of Pareto Diagram in the Prestress Construction

排列图法在预应力混凝土施工过程中的应用

62. The basic formulas, which can determine the ratio of each hoop cable"s prestress,are derived.

推导了环索预应力设定的基本公式,由此可确定各圈环索预应力的比值。

63. Then the prestress of the piles was adjusted to the designed value in prefabrication,and good effect was achieved.

提出适当调整预应力,能够有效地解决预应力水冲桩桩身裂缝的问题。

64. Then the prestress of the piles was adjusted to the designed value in prefabrication, and good effect was achieved.

提出适当调整预应力，能够有效地解决预应力水冲桩桩身裂缝的问题。

65. The double-layer cable structure is the prestress equilibrium systems composed by tensional cables and struts.

摘要双层索结构是指由张力索和压杆组成的、具有预应力自平衡的新颖结构体系。

66. Because of the existence of the anchor bars, prestress, and surcharge in grillage supporting structure, the stress state within the slope is made very complicated.

摘要在框架预应力锚杆支护边坡工程中，由于锚杆、预应力及堆载的存在，使得边坡应力状态复杂。

67. Research is done on slow change of concrete-filled steel tubular constriction and prestress loss caused by concrete shrinkage.The parsing formula of the prestress loss is deduced.

摘要对钢管混凝土收缩徐变和预应力筋松弛引起的预应力损失进行了研究，推导出了该项预应力损失解析式。

68. Establishing the pre-stressed bridge model with the entity unit, the simulation of prestress bar has very big limitation.

摘要用实体单元建立预应力桥梁模型时，预应力筋的模拟存在很大局限性。

69. As a result of prestress, T-shaped beam of post-prestressed concrete appears invert camber and lateral bending on the prestretching stage.

摘要由于预应力等因素的影响，后张预应力混凝土T梁在张拉阶段会产生一定的反拱和侧弯现象；

70. The infuence on resonance frequencies of longitudinal-torsional ultrasonic motor exerted by prestress is studied.

摘要研究了预压力对超声马达共振频率的影响。

71. Abstract: A new structural type is proposed and tested: steel-reinforced brick based on distributed unbond prestress theory (SRB-DUP).

摘要： 本文提出并试验了一种新型的结构体系：基于分布式非黏着预应力理论的钢筋加固砖砌体结构（SRB-DUP）。

72. integrity feasible prestress

整体可行预应力

73. This study analyzes the distribution of strain in NMOS channel by using “prestress method” proposed in this investigation to simulate the different intrinsic stress.

文中亦针对奈米结构进行有限单元参数化分析，以详细讨论各项参数与应变矽之关系。

74. Abstract: The monitoring of tieback prestress and its existing problems are discussed for foundation pit protection at Dongfang Square, Beijing, and the problems in the tensile, such as the loss of prestress, bias in loading, are explained.

文摘:对北京东方广场基坑支护中锚杆预应力的监测及其所出现的问题进行了分析，说明张拉过程中所存在的问题(预应力损失、偏心荷载等)。

75. Steel Strands Shape Parameters of Skew Prestress Box Girder

斜交预应力箱梁钢绞线形状特性及其影响

76. Design and construction of new cohesionless prestress concrete structure

新型无粘结预应力混凝土设计特点和施工技术

77. improved prestress anchor block

新型预应力闸墩

78. Design and Construction of Unbonded Prestress Egg-shaped Digester

无粘结预应力卵形消化池结构设计与施工

79. Application of Non-cohesive Prestress Technology in Circular Pond Structure

无粘结预应力技术在圆形水池结构中的应用

80. Application of Non-cohesive Prestress Tension Technology in Rebuilding Projects

无粘结预应力放张技术在改造工程中的应用