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.
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.
利用动力松弛法对预应力张拉膜进行初始平衡形状的确定以及静载分析。
Initial equilibrium shape and static behavior of pretensioned membrane structures is analyzed by dynamic relaxation method in this paper.
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.
对结构模型的选取、荷载工况的组合和单层索网的预应力张拉设计进行了深入研究。
The analysis model choosing, load combination, prestress construction design of cable net are thoroughly analyzed.
对预应力张拉索膜结构由于温度变化对结构初始平衡形状和静力效应的影响进行研究。
The temperature effect on initial equilibrium shape and characteristics of static responses of pretensioned cable-membrane structures is analyzed in this paper.
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.
预应力变角张拉装置是一种用于筒仓结构预应力张拉的机具。该装置已获国家使用新型专利。
The angle-changeable prestressing equipment is a kind of devices for tensioning prestressed tendons in silo structures.
不同的连续端混凝土浇筑和后连续预应力张拉顺序会导致永久支座负弯矩区的压应力储备不同。
The cast of concrete at different end and the post-tensioning of continuous prestress make the negative bending moment section of the permanent support have different compressive stress reservation.
对目前在国内外引起广泛关注的大跨度空间索承网壳结构进行了成形即预应力张拉阶段的试验研究。
A model experimental research of the stage of form finding (namely prestressing) for the cable-supported lattice shell structure, which is widely paid attention to in the world, is carried out.
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.
通过对主梁的受力、挠度进行分析，为制订预应力张拉修复桥式起重机主梁下挠工艺参数提供了设计计算方法。
This paper analyses the beam load and deflection and also proposes the calculating method to work out the technology parameter.
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.
本文结合工程实例，介绍预应力钢筋张拉时理论伸长值的计算方法。
The paper introduces the calculation methods of extension of prestressed reinforcement combining with project instance.
竖向预应力应两次张拉以保证有效预应力。
The vertical tendon had to be prestressed twice to ensure effective prestressing.
张拉弦钢拱架结构是一种新型的预应力钢结构体系。
The stressed-arch frame is a new type of prestressed steel structure system.
提出预应力数字化张拉技术的概念，并介绍基于这一概念的预应力数字化张拉系统的研究状况和成果。
In this article, authors provide the idea of digital prestress tension technology, and introduce situation and achievements of study of the digital prestress tension system based on the idea.
张拉千斤顶、油表在预应力钢束张拉前进行检验和标定，使用中按规定程序进行送检标定。
Tensioning jack, oil gauge shall be checked and calibrated prior to the prestressed steel strands tensioning and executed to check and calibrate in using as per the specified procedure.
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.
针对柔性系杆拱采用端横梁压重的问题，由于端横梁自重较大，而且系杆张拉后端横梁难以张拉预应力筋，端横梁的安全性是需要解决的一个难题。
It is a problem to assuring the safety of the end crossbeam in the arc with flexible tied bar, because it is difficult to prestress the end crossbeam after tensing the tied bar.
为了解预应力钢绞线张拉顺序对新老混凝土组合梁力学性能的影响，进行了双T形截面新老混凝土组合梁试验研究。
The old and new concrete of composite beam with double T-section was tested to investigate the effect of tension sequence of prestressing tendon on mechanical behavior of composite beam.
介绍了南洋河大桥的工程概况，并根据桥的使用状况提出了采用体外预应力竖向张拉法来加固旧T梁的设计构想和应遵循的设计原则。
The engineering situation of Nanyang river bridge is introduced and the idea of adopting external prestress vertical tension method to reinforce t beam and design principle are proposed.
本文主要介绍了该工程高强预应力锚栓预埋、张拉及灌浆的技术。
In this paper, the embedding, pretension and grouting technology of the high-strength prestressed bolts for this kind of the base is presented.
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.
同时还应用了环形无粘结预应力钢筋张拉技术。
The ring unbonded prestressed reinforcements tension technique was also used at the same time.
在梁体温度均匀时张拉预应力钢束，可减少结构的预应力损失。
The prestressed steel bar is drawn when there is uniform temperature of the main beam body, so that the prestress loss can be decreased.
预应力筋用量的增加、张拉控制应力的增大使预应力框架梁、柱的开裂荷载提高。
The crack load increases with the increase of the amount of the prestressing steel or the tensioning stress.
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.
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