真空压浆是后张预应力混凝土结构施工中的一项新技术，已经越来越广泛地应用于工程实践中。
Prestressed construction technology of the box girder concrete of the bridge and the vacuum grouting technology;
将留后浇带预应力混凝土梁模拟为弹性支座梁，研究了留后浇带预应力混凝土结构施工期间的力学性能。
The structures are simulated as a beam with elastic bearing, then a model is proposed for the analysis of prestressed concrete structures with a strip of post pouring concrete during construction.
本文还针对预应力混凝土连续刚构桥和斜拉桥，分析计算了其在施工和运营阶段，混凝士徐变对桥梁结构的影响。
The influence of concrete creep on bridge structure under the construction and operation stage for prestressed concrete continuous rigid frame bridge and cable-stayed bridge is also analyzed.
施工期间的预应力混凝土结构是时变体系。
The prestressed reinforced concrete structure during construction is a time-dependent structural system.
在预应力混凝土斜拉桥的施工过程中对主梁线形与结构内力的控制非常重要。
The control of girder geometry and internal forces is very important in the construction of pre-stressed concrete cable-stayed Bridges.
简要介绍武汉白沙洲大桥主桥上部结构的钢箱梁、高强螺栓、预应力混凝土箱梁、斜拉索的施工工艺和质量控制措施。
Construction technology and quality control measures for steel box girder, high-strength bolt, prestressed concrete box girder and inclined cable are briefly introduced.
水电站混凝土闸墩预应力锚索空间结构复杂，影响施工质量因素较多。
Hydropower stations concrete pier tendon has sophisticated spatial structure and the factors affecting construction quality are numerous.
无锡金城大桥主跨上部结构为预应力混凝土连续箱梁，纵、横向预应力孔道压浆采用真空辅助压浆工艺。介绍该真空辅助压浆的施工工艺。
The superstructure of the main spans of Jincheng Bridge in Wuxi is a prestressed concrete continuous box girder with its longitudinal and transverse prestressing ducts grouted by vacuum method.
以工程实例对无粘结预应力混凝土结构筒仓的设计、施工作了介绍。
Design and construction of unbonded tendons concrete structure at silos is introduced with practical project examples, which...
这类桥梁在设计计算过程中均是按照全预应力混凝土结构进行设计的，施工和运营中任何截面混凝土拉应力均不允许超过允许应力值。
Bridges of this kind are designed according to fully prestressed concrete theory, and tensile stress is allowed to exceed allowable stress during construction and service.
超长混凝土结构的设计和施工中可以采取设置后浇带、采用微膨胀——补偿收缩混凝土或设计无粘结预应力混凝士结构来防止温度收缩裂缝的产生。
The designer can set post-pouring belt, using UEA con- crete and designing pre-stressing concrete structure to avoid the crack caused by temperature and shrinkage.
本文依据结构可靠度理论，对高墩大跨预应力混凝土刚构桥的施工期桥墩可靠度进行研究。
On the basis of structure reliability principles, this essay studies the reliability of prestressed-concrete rigid-frame bridge with high-pier and large-span during construction period.
尽管存在施工方面的原因，但结构设计理论不足，是预应力混凝土箱梁开裂的主要原因。
Although the cause has some relation with construction operation, yet the major factor should be due to deficiency of the theory and improper design of the prestressed steel.
根据材料优缺点、施工特点等进行多方案分析比较，确定展厅、报告厅、演播室等楼盖结构选用后张有粘结预应力混凝土梁，钢桁架结构楼层采用钢筋桁架组合楼板。
The post-tensions prestressed beams are disposed for large space such as exhibition halls, reporting halls and studios, while the steel truss floors are formed by steel bar truss deck.
根据材料优缺点、施工特点等进行多方案分析比较，确定展厅、报告厅、演播室等楼盖结构选用后张有粘结预应力混凝土梁，钢桁架结构楼层采用钢筋桁架组合楼板。
The post-tensions prestressed beams are disposed for large space such as exhibition halls, reporting halls and studios, while the steel truss floors are formed by steel bar truss deck.
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