建立了基于静动力测试的既有预应力混凝土梁桥的承载力评估方法。
A static and dynamic-based evaluation procedure of load-carrying capacity for existing prestressed concrete girder bridges is proposed.
波纹钢腹板预应力混凝土梁桥是对传统的预应力混凝土梁桥的一次重大改进。
The prestressed concrete beam bridge with corrugated web has greatly improved the traditional prestressed concrete beam bridge.
分析无粘结预应力混凝土梁桥的主要困难，在于构件的截面强度和构件整体变形耦合。
The main difficulty in analysis of unbonded prestressed concrete beam bridge is the coupling between the sectional strength of member and the whole structural deformation of member.
阐述了体外预应力结构的概念与特性，分析了传统体外预应力混凝土梁桥建模方法——等效荷载法和荷载平衡法的缺点。
The shortcomings of the traditional modeling methods, the equivalent load method and the load balance method, in external pre-stressed concrete bridges were analyzed.
运营中的大跨径预应力混凝土梁桥箱梁普遍开裂，严重影响了桥梁结构的安全性和耐久性，造成了桥梁过早的失效和破坏。
The long-span prestressed concrete beam bridge is likely to craze in operation, which decreases the bridge's safety and durability and then leads to its structure's early failure and destruction.
挂篮是目前大跨径预应力混凝土连续刚构桥和连续梁桥在悬臂浇注施工时主要采用的施工设备。
The hanging baskets are the main equipments in the cantilever casting construction of large-scale prestressed concrete continuous rigid bridge and continuous girder bridge.
跨座式单轨PC(预应力混凝土)轨道梁桥结构具有承重、导向及稳定的作用。
Straddle type single track beam of Press Steel Concrete (PC) possess the action of bearing, orienting and stabilizing.
本文主要针对预应力混凝土曲线梁桥抗扭设计中的相关问题进行了分析计算。
This article mainly aimed at analyzing and calculating some problems related to the torsion design of curved prestressed concrete girder Bridges.
预应力混凝土箱梁以其优良的截面性质在梁桥中占据了主要地位。
With its excellent section characters, the prestressed concrete box beam plays a main role in the girder bridge.
预应力设计是混凝土连续梁桥设计中的重要组成部分。
The prestress design is the important part in the design of concrete continuous girder bridges.
通过磊口大桥工程实例，对带挂梁的预应力混凝土T型刚构桥的设计进行总结。
By a actual engineering example in Leikou bridge, the design of prestressed concrete T-frame bridge hanging a beam.
针对某大跨度连续刚构桥出现的主要病害及其原因，介绍了采取增设预应力混凝土箱梁体外索的加固措施。
Aiming at the main damage and its causes of a large-span continuous rigid framework bridge, the strengthening measure of adding the external cable to prestressed concrete box girder was introduced.
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.
本文以预应力混凝土连续梁桥为研究对象，采用有限元分析手段结合依托工程进行研究。
In this paper, prestressed concrete continuous girder bridge is studied by using finite element analysis tool with support project.
通过试验，使我们对于预应力混凝土半刚构-连续梁桥有了进一步的认识。
By test, we will know more about prestressed concrete semi-rigid frame continuous box girder bridge.
计算结果验证了预应力混凝土箱形连续梁桥中出现斜裂缝的原因推测。
Results prove that presumption of the causes of diagonal cracks in continual box-gird with pre-stressed concrete bridge is correct.
本文提出了一种新桥型——部分预应力混凝土组合连续梁桥的设计原理与施工方法。
In this paper, some design principles and construction methods of a new type composite continuous beam bridge with partially prestressed concrete have been put forward.
预应力混凝土连续箱梁桥的开裂可以说是“多发病”，影响着构件的外观、使用寿命，甚至结构安全。
Cracking is quite common in prestressed concrete continuous box girder bridge, which influences appearance of component, life span of using, and even safety of structure,.
而且，在预应力混凝土连续刚构桥悬臂施工过程中，已建成梁段的线形在后期施工中是不可调整的。
And during the cantilever construction of the prestressed concrete continuous rigid frame bridge, the beam axis shape of formed blocks can't be regulated during the subsequent constructions.
芜湖长江大桥桥塔拉索锚固区为预应力混凝土箱形结构，无中间梁，索塔锚固区为单箱单室结构。
The cable anchoring zone on the cable tower of the Wuhu Yangtze River bridge is of pre stressed reinforced concrete box structure without intermediate beam.
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.
基于以上的理论分析，本文对某预应力混凝土连续梁桥进行时变系统可靠度分析。
Base on the above theoretical analysis, the article carries on the time-dependent system reliability analysis to some prestressed concrete continuous beam bridge.
其次，研究了预应力混凝土曲线梁桥中预应力钢束对曲线梁桥扭矩的影响。
Secondly, I have researched the influence of prestressed reinforcement on the torsion of curved girder bridges.
试验证明，利用体外预应力技术加固混凝土简支梁桥，可以明显提高承载力及延性。
The test results show that the externally prestress technology can be applied in strengthening concrete simple span beam to enhance its bearing capacity and ductility.
采用三维实体单元和杆单元相结合的空间组合有限元方法，对一座两跨曲线预应力混凝土箱形连续梁桥进行空间受力分析。
Using a spatial composite finite element method, combining three-dimensional solid element and bar element, the mechanical analysis of a two-span curved PC continuous box girder bridge is conducted.
经由以上原则以及设计施工等诸多方面考虑后，确定预应力混凝土连续梁桥为最终设计方案。
Accdoding to the above principles and construction factors, the prestressed conous bridge is chosen to the ultimate.
经由以上原则以及设计施工等诸多方面考虑后，确定预应力混凝土连续梁桥为最终设计方案。
Accdoding to the above principles and construction factors, the prestressed conous bridge is chosen to the ultimate.
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