采取应力控制，伸长校核的原则，确保了预应力张拉施工的质量。
Thequality of prestressed stretching is guaranteed by the principle of stress control and stretch adjusting.
预应力张拉施工中夹片、钢绞线和锚环之间存在着很大的摩擦阻力。
There is much prestressing loss for friction resistance among wedge, steel strand and anchor-ring in engineering.
文章叙述了该构件的预应力张拉技术、现场生产流水线、吊装施工技术及防水处理方法。
This paper explains the prestressing expansion technique, in site producing flow line, hanging construction technique and water proof treatment method.
给出了实际工程应用中利用数字化张拉系统施工的控制过程记录，以及所测定的预应力损失值与理论计算值的对比。
The construction record controlled by digital prestress tension system and the comparison between calculated and tested values of prestressing loss in an actual project are discussed.
介绍了某汽车城车展中心有粘结预应力施工工艺、操作要点以及变角张拉技术的特点。
This article according to bonded prestressed construction technology application, operation points and tension technical angle of a car show center, And a benefit analysis for this technology.
重点内容有预应力CFRP布的张拉设备，加固施工流程和技术要点以及试验研究。
These methods and technologies include tension equipments of prestress CFRP cloth, its construction process and key technical points, and test data and so on.
在桥梁短索钢绞线预应力的施工中，锚夹具在张拉时的回收对钢绞线伸长值的量测有着不可忽略的影响。
During the prestressed construction of bridge, the field of anchor holder while straining has greatly influenced the measurement on the elongation indicators of lanyard steel strand.
根据对弹性模量、非比例强度、抗拉强度和断裂伸长率的观察分析，提出了预应力钢丝张拉施工工艺的改进意见。
Some ideas on improvement in prestressing process are raised according to the observation and analysis on modulus of elasticity, apparent yield limit, tensional strength and percentage elongation.
该改造工程不需要对预应力钢筋二次张拉和对结构进行临时支撑，因而明显地缩短了施工周期并节省了工程费用。
Using this new technology, there needs no the second tensioning of the prestressing tendons and temporary braces, thus the construction period and cost can be cut down obviously.
随着预应力在桥梁施工中的普遍应用，预应力张拉控制已成为桥梁上部结构施工中的一道重要工序。
With the common application of prestress in bridge construction, the strain-pull controlling has become an important working procedure during the upper structure construction of bridge.
在施工过程中，对预应力张拉实行有效的质量控制，可以确保预应力体系的质量和桥梁的工程质量。
In the process of construction, the effective quality control of prestressed tension can ensure the quality of prestressed system and bridge engineering.
预应力张拉是预应力混凝土构件施工的重要环节。
The prestressed tension is an important part of the prestressed concrete component construction.
通过施工实例，介绍了预应力材料、机具伸长值计算及张拉施工。
This paper Concentrates on the introduction of pre-strain materials, machine tool, calculation of extending value and extensive construction.
对T型梁桥梁板预应力张拉控制相关参数的计算，可为今后的施工提供参考。
The calculation on relative parameters for strain-pull controlling of T-style beam bridge prestress, can provide reference for construction in future.
后张法预应力混凝土梁板在张拉施工过程中，经常会出现一些施工病害。
Some diseases usually appear in the tension construction of post-tensioning prestressed concrete beam slabs.
提出了预应力筋束分步张拉施工与荷载控制方法，以减小管壁混凝土的轴向次弯矩。
The methods are suggested to determine the tensile steps and the tensile forces of prestressed strands for decreasing the secondary bending moment along the axial of the penstock.
试验证明，扭力扳手预应力锚杆张拉值与锚杆应力计监测值基本一致，说明采用扭力扳手进行预应力锚杆张拉的施工方法简易可行。
It is proved that the stretching values with the wrest wrench are almost the same as those with the stress gauge monitoring method, but the former method is simpler and more feasible.
试验证明，扭力扳手预应力锚杆张拉值与锚杆应力计监测值基本一致，说明采用扭力扳手进行预应力锚杆张拉的施工方法简易可行。
It is proved that the stretching values with the wrest wrench are almost the same as those with the stress gauge monitoring method, but the former method is simpler and.
本公司各类专业技术人员有546人，拥有大型塔吊、混凝土搅拌站及输送泵，预应力张拉以及SP先进模板体系等施工机械设备。
The company has 546 professional technic personnel. It possesses heavy tower cranes, concrete batching stations and lumps, prestress processing device and SP form system.
在高层建筑施工中采用大跨度无粘结预应力技术，并对其中的铺放技术、穴模加工、张拉设备等进行改造，使工程质量得到保证，成本也有降低。
The adoption of large-span bond-free prestressed concrete technology and tensioning device have ensured construction quality and saved construction cost of highrise building.
预应力筋张拉宜采取初拉及复拉的施工方法。
The third is that the tension of prestressed reinforcement should adopt the repeat tension construction method.
主梁后浇结构层与墩顶梁端湿接头浇筑顺序以及墩顶负弯矩预应力筋张拉顺序是简支变连续梁桥施工的关键工序。
The constructing procedure of the monolithic layer and the wet joints of the girders and the orders of straining the pre-stress force are the key orders of the simply supported-continuous system.
分析了导致底板崩裂的主要原因，主要包括跨中合龙束张拉时产生的径向力作用、非预应力钢筋构造因素及施工影响等；
The main causes of bottom flat crack are analyzed, mainly including radial force generated by closure strands stretching in middle span , non-structural elements and construction effects , etc.
给出了结构的特点和节点构造，以及预应力转换梁施工阶段验算结果及预应力筋分段分批张拉的施工顺序。
The checking calculation of the post-stressed concrete transfer beam in the construction period and the stretching sequence of the deformed bar is also introduced.
给出了结构的特点和节点构造，以及预应力转换梁施工阶段验算结果及预应力筋分段分批张拉的施工顺序。
The checking calculation of the post-stressed concrete transfer beam in the construction period and the stretching sequence of the deformed bar is also introduced.
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