prestress

Based on the accurate calculation of loads, the current most commonly used prestress methods in thermal production well have been numerically simulated by finite element software ANSYS including conventional cementing, prestressed casing and thermal stress compensator method.

在准确求解载荷的基础上，分别对现阶段在稠油热采井中常使用的常规固井、预应力固井和使用热应力补偿器方式，利用有限元软件ANSYS对井筒模型进行应力数值模拟求解。

Referring relevant code and theory, establish different analyzing and computing methods about the third moment and secondary moment of the hyperstatic prestress effect of external prestressed frame concrete structure.

根据相关的规范和理论，提出了不同的分析和计算二次弯矩与第三弯矩的方法。

Influence scope and setting distance analysis of anchor cable prestress in slope stability monitoring of open-pit mine

露天矿边坡稳态监控锚索应力场及设置间距分析

A simplified calculation method for initial prestress of levy cable domes with the consideration of self-weight

Levy型索穹顶考虑自重的初始预应力简捷计算法

The changes of prestress and cracks with temperature increasing are analysed.

对裂缝的出现和预应力的变化规律作了相应的阐释.

Membrane and cable have a negligible bending stiffness and have no compression resistance. Prestress must be applied to maintain the shape of membrane structure and carry loads.

由于膜材和索本身不具有抗弯刚度，因此必须依靠施加预张力来维持结构形状、抵抗外荷载的作用，这就引出膜结构形态的概念。

Prestress concrete beam uses C 50 concrete usually.

预应力混凝土梁中通常采用C50混凝土.

Due to exerting prestress, the structure has self-centering capability.

此外由于施加了预应力, 使得该结构具有良好的恢复力特性.

Prestress technology is an effective way to use the high strength of FRP composite.

预应力技术是充分发挥FRP复合材料高强性能的一条有效途径.

Dynamic Analysis for Steel Beam Bridge with Prestress Tendons

预应力钢梁桥的动力分析

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.

The construction method of combining the prestress hollow core slab with the pour concrete lath

预应力空心板与现浇板带相结合的施工方法

After tensioned, anchor seal material at the end of prestress beam is C 50 concrete.

钢绞线采用单束两端同时张拉,张拉后采用C50混凝土封锚.

Research on the Measures of Thermostatic Control to Prevent cracking on the Large Scale Prestress Aqueduct During Construction Period

大型预应力渡槽施工期温控防裂措施研究

External prestressing is a kind of no felt prestress.

体外预应力是无粘结预应力的一种.

Study of the Contriving Method of the Prestress Concrete Hollow Plank

预应力混凝土空心板桥设计方法研究

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.

The variational rules of prestress , cracks and reaction of continuous slabs are studied.

并对裂缝的出现、预应力及内力的变化规律作了相应的阐释.

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.

The changes of deflection, prestress and reactions with temperature increasing are presented.

主要测试了构件的挠度变化 、 预应力的变化及支座反力的变化.

Non-coherent prestress tension analysis for egg-shape shell structures of 10.9 thousand cubic meter

1.09万m~3蛋形壳体结构无粘结预应力张拉分析

Furthermore, frequency of concrete beam reinforced by external prestress was studied with the consideration of various factors ( different steering structure, tension method, prestressed reinforcement curve form).

考虑各种因素（不同转向结构、张拉方式和力筋曲线形式下）后，对体外预应力加固混凝土梁的频率进行研究。

The Wuxi Sports Meeting and Exhibition Hall consists of a meeting and exhibition building and a stadium, its roof system is composed of ten 81 meters span and ten 110 meters span non-prestress inverse-triangle steel pipe trusses.

无锡市体育会展馆是由会展馆和体育馆组成，其屋盖体系主要是由10榀81m和10榀110m跨度的无预应力倒三角钢管桁架组成。

The utility model discloses a bearing plate of anchorage, which belongs to the technical field of anchorage for producing prestress.

本实用新型公开了一种锚具垫板，属于产生预应力的锚具技术领域。

The paper introduced some control methods and measures of part prestress concrete continuous box beam.

简要介绍装配式部分预应力砼连续箱梁桥施工中的几个关键部位控制方法与措施.

Meanwhile, there are some problems exist in curved bridges, such as: the influence of temperature and prestress reinforcement.

由于对一些诸如温度、预应力问题等认识不足，许多曲线梁桥设计和使用中存在一定的问题。

The application of external prestress vertical tension method in bridge reinforcement

谈体外预应力竖向张拉法在大桥加固中的应用

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.

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

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.

The prestress loss cable is an important factor which can affect the safety of anchoring project.

锚索预应力损失问题是关系到锚固工程安全与否的重要因素.