分析了预应力混凝土桥梁裂缝的成因；
Reasons caused the cracks of prestressed concrete bridge are analyzed.
分析表明灰色预测控制适用于大跨预应力混凝土桥梁的施工控制。
The results indicate that the grey predictive control system is adapted to the construction control for the long-span PC Bridge.
预应力混凝土桥梁在长期运营服役期内，会出现开裂和下挠现象。
The prestressed concrete bridge in long-term operation service period, may appear the phenomenon of cracking and deflection.
本文提出了预应力混凝土桥梁结构弹性工作阶段的有限元分析方法。
This paper presents a finite element method of analyzing the secondary forces of prestressed concrete bridge.
本文主要介绍了专桥2119后张法预应力混凝土桥梁的施工方法。
This paper introduces the constructing method of rear - spreading prestressed concrete in Bridge 2119.
对外贴FRP加固预应力混凝土桥梁正常使用极限状态的抗裂和变形性能进行初步研究。
This paper conducts a preliminary study of crack resistance and deformation behavior of prestressed concrete girders strengthened with externally bonded FRP in serviceability limit state.
沿海钢筋混凝土与预应力混凝土桥梁易受渗入到钢筋表面的氯盐腐蚀，影响结构的耐久性。
The coastal reinforced or prestressed concrete Bridges are always liable to chloride corrosion permeating on the reinforcement therein and durability of the structures is thus degraded.
采用钢弦式应力计测量预应力混凝土桥梁结构应力时，由于种种原因，将导致测试结果与理论计算结果不符。
When using reinforced-stress gauge to measure structural stresses in prestressed concrete girder bridge, there exist errors between measured values and the theoretical ones because of various factors.
体外预应力技术的应用领域现阶段主要包括体外预应力混凝土桥梁、结构的体外预应力加固和预应力钢结构。
The current applied fields of external prestressing mainly includes externally prestressed concrete bridge, structure rehabilitation and prestressed steel structure, etc.
探讨了碳绞线体外预应力混凝土桥梁的结构特点和构造措施，以及该类桥梁中挠度、延性及抗弯、抗剪的计算分析方法。
The structural properties of concrete bridge externally prestressed with CFCC, and the analysis methods of deflection, ductility, bending and shear design of the bridge are discussed.
本文通过广泛的资料收集和合理的理论分析与计算，主要进行了以下几项工作：(1)较细致地分析了影响预应力混凝土桥梁起拱度的各项因素。
With abroad data and rational analysis, the major work is described as follows: (1) Influencing factors of reversed arch in prestressed concrete beam is analyzed at length.
我国近半个世纪以来。预应力混凝土技术在公路桥梁建设中已广泛应用。
Based on the extensive application of prestressed concrete technique in highway bridge during half a century in China.
再次，讨论了预应力、混凝土徐变、箱梁抗弯刚度等对桥梁结构下挠的影响。
Thirdly, pretressing, concrete creep and bending rigidity of box girder are studied to discuss their impacts on the deformation of girder.
无粘结部分预应力混凝土同普通预应力混凝土相比具有很多有优点，在公路和铁路桥梁工程中得到广泛应用。
Compared with normal prestressed concrete, unbonded partially prestressed concrete has a lot of advantages, it is used extensively in highway and railway bridge engineering.
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.
与预应力钢筋混凝土梁相比，其刚度较小，特别是在大跨径桥梁中，其挠度变形是影响其应用的重要控制因素。
Compared with prestressed rebar concrete beam, its stiffness is more little. Especially in the-big-span bridge, its deflection is a important control factor which influence its application.
预应力混凝土连续梁和连续刚构桥是目前桥梁工程中应用最广泛的桥型，通常采用平衡悬臂方法施工。
Pre-stressed concrete continuous beam and continuous concrete rigid frame bridge, constructed through balanced cantilever, are the widest used in recent Bridges.
我国交通系统的完善促进了预应力混凝土桥墩在桥梁建设中的应用。
The development of transport system facilitates the adoption of prestressed reinforcement concrete bridge piers.
随着桥梁设计、施工技术和预应力混凝土技术的飞速发展，悬臂施工的工艺越来越成熟。
With the rapid development of the bridge design, technology and prestressed concrete technology, the cantilever construction process is more and more mature.
预应力传感器是锚固工程、预应力混凝土工程、预应力桥梁工程等领域进行监测、研究与试验必不可少的测量用传感器。
The pre stress sensor is necessary for measurement in monitoring, research and test in the construction of anchors, pre stress concrete and pre stress Bridges.
预应力混凝土连续梁桥因其优越的结构体系成为当今一种广泛采用的桥梁形式。
The prestress concrete continuous girder bridge is one of the most widely used in bridge engineering because of its excellent structural system.
在已建设的众多预应力混凝土空心板桥梁中，存在出现混凝土裂缝、跨中挠度过大及因施工质量问题而造成废梁等问题。
Some problems such as concrete cracking, bigger deflection of span and abandoned beams caused by construction quality have appeared in the completed prestressed concrete voided slab Bridges.
大跨度预应力混凝土连续刚构桥底板出现开裂是该类桥梁出现的问题之一，其影响因素较多。
It is one of the defects that cracks occur in the bottom slab of an extra-long prestressed concrete continuous rigid frame bridge. There are many influence factors.
介绍某预应力钢筋混凝土斜弯坡桥在工程即将完成之际，进行桥面铺装之前发生沉降情况及原因分析，并对沉降后的桥梁进行复原与加固。
Described in this paper is the settlement of some prestressed RC bridge which occurred when deck pavement was to be paved, including analysis of the causes, and recovery and enhancement thereof.
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.
预应力混凝土连续箱梁的悬臂施工作为大跨径桥梁的主要建设方式日渐成熟，但此类桥梁设计、施工中仍然存在着某些关键问题其处理方式比较含糊。
Now cantilever construction of prestressed concrete continuous box girder as the chief construct methord in engineering has gone intio the rang of mature.
对于高烈度地震区大跨桥梁的设计推荐了一种全新的桥式方案——空腹式箱梁连续刚构，该结构是钢管桁架和预应力混凝土板的组合结构。
The author recommends a brand new long-span bridge structure in high intensity earthquake areas—consecutive box girder rigid frame bridge with hollow abdomen.
通过工程实例，详细叙述了桥梁的桥墩盖梁加固的植筋施工工艺，预应力钢筋混凝土施工工艺和高强复合纤维粘贴施工工艺。
With engineering examples, the workmanship to strengthen Bridges is described in detail, including the cap beam reinforcement setting, PC reinforcement, and high tensile complex fiber gluing.
通过工程实例，详细叙述了桥梁的桥墩盖梁加固的植筋施工工艺，预应力钢筋混凝土施工工艺和高强复合纤维粘贴施工工艺。
With engineering examples, the workmanship to strengthen Bridges is described in detail, including the cap beam reinforcement setting, PC reinforcement, and high tensile complex fiber gluing.
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