prestressing

Engineering practice of a post-tensioned prestressing web plate girder for the construction of the Changchun railway station's high elevation waiting lounge project

长春站高架候车厅后张预制预应力薄腹梁工程实践

Prestressing Construction of Pipe Arch with Bar Composite Bridge

浅谈钢管拱系杆组合桥预应力施工工艺

Fail modes are influenced by prestressing levels, length of negative moment reinforcement and fire cases.

考察了预应力度 、 负筋长度及不同受火工况对破坏形式的影响.

External prestressing is a kind of no felt prestress.

体外预应力是无粘结预应力的一种.

This thesis adopt the finite element method to upbuild the whole model, the frame internal force distribution situation are analysed between the prestressing force of cable losed or not. The soil is elastoplastic.

采用有限元分析方法进行整体建模，整体分析锚索框架内力分布情况以及在锚索预应力损失情况下框架梁的内力变化情况。

Calculation of Normal Cross Section Strength of a Bridge Strengthened with External Prestressing

体外预应力加固桥梁正截面强度的计算

FEA of Pre-stressed Anchor Device under Stress and Dimension and Material Optimum of Anchor Head; "Anchorage, grip and coupler for prestressing tendons"

预应力锚具受力过程的有限元分析及锚圈的尺寸和材料优化GB/T14370-1993预应力筋用锚具、夹具和连接器

Suitable calibrated dynamometers were used to control the pull in the prestressing cables.

用合适的率定过的量测计控制预应力钢索的拉力.

The vertical tendon had to be prestressed twice to ensure effective prestressing.

竖向预应力应两次张拉以保证有效预应力.

Reasonable Selection of the Values of the Circular Prestressing Loss and the Alternate Angle for Egg-shaped Digester

卵形消化池环向预应力损失及交错角的合理取值

The effect of practical prestressing on the static specialties of a kind of column-supported lattice shallow spherical shells is studied through the example of three-phase prestressing design.

以预应力三阶段设计为例分析预应力施加对柱支承扁网壳静力性能的影响。

Experimental research on Prestressing Construction Technology of National Gymnasium

国家体育馆双向张弦结构预应力施工模型试验研究

Additional concentric prestressing was required in the pier.

墩内要求另加集中压力.

H . Dill proposed full prestressing to eliminate cracks completely.

迪尔提出了施加全预应力以彻底消除裂缝.

Prestressing steel wires ( steel strands ) are widely used in prestressed concrete structures.

预应力钢丝 ( 钢绞线 ) 广泛地应用于预应力混凝土结构中.

Later other prestressing Methods : With parallel wire or strand tendons were also used.

后来,又使用其它的预应方法,如利用平行钢丝或钢绞线施加预应力.

The result of numerical analysis illuminates that the stress of concrete bridge panel near interior supports is always compress stress during the construction. The prestressing of the bridge can avoid the cracks in concrete in the area with negative moment.

不同施工阶段的分析表明，设计采用的预应力方法可以使内支座处混凝土桥面板保持压应力状态，有效防止负弯矩区混凝土的开裂。

Application of Non-cohesive Prestressing Force on Sludge Digester

无粘结预应力在污泥消化池上的应用技术

Influence of arrangement ways of reinforcement of prestressing tendon on the box girder natural frequency

预应力筋布筋方式对简支梁固有频率的影响

The prestressing system for reactor containment of Daya Bay Nuclear Power Station

大亚湾核电站反应堆安全壳预应力技术

Prestressing force concrete in step highway-bridge foot-path occupy leading status while being medium and small structure.

预应力混凝土结构在中小跨径公路桥梁占有主导地位.

The dimensions or prestressing force and eccentricity require modification.

尺寸或预加力和偏心需要修改.

Also, Many engineering structures at service especially bridges are suffering from fatigue or structural harm due to structure aging, corrosion of reinforcement bar and overweight. It is very effective to strengthen these harmed or fatigue structures using the externally prestressing technique.

同时，大量的在役工程特别是桥梁，由于结构老化、钢筋锈蚀以及超载等因素的影响，结构产生损伤或疲劳，采用体外预应力技术加固这些损伤或疲劳结构是十分有效的手段。

Construction of prestressing continuous slab with bonded tendons with frame structure post-tensioning method

框架结构后张法有粘结预应力板的施工

Construction of the armored concrete roof truss of prestressing force

预应力钢筋混凝土屋架的施工

In structure design, if this property is full used, it can help to decrease the dosage of the prestressing tendon, save anchorage device, reduce cost and minish invert arch.

工程设计中，若能充分利用部分预应力混凝土的这一特性，将可以减小预应力筋的用量，收到节约锚具、降低造价、减小反拱的效果。

Study on Part Influencing Area of Prestressing Force of Reactive Powder Concrete ( RPC) Box Beam

RPC箱形梁预应力局部影响区研究

The characteristics and design methods of structure strengthening with external prestressing tendons are discussed on the basis of the introduction of a project at the accessory building for foreign students in the Petroleum University.

通过对石油大学留学生楼附属用房体外预应力加固工程的介绍，探讨了体外预应力加固方案的设计思路与特点。

In this article , by applying several layout of prestressing tendon, stress and deflection is calculated.

通过采用几种不同的预应力筋布置方式, 对应力进行计算,得出一种优化的布置方式.

The stress distribution of cable-girder anchorage zones under cable forces and U-prestressing tendon is analyzed.

分析了索力和U形钢束共同作用下主梁锚固区应力大小及分布情况.