本文叙述了悬臂拼装预应力混凝土连续梁的预加力引起的弯矩重分布。
In this paper the moment redistribution due to prestressing in precast segment continuous prestressed concrete beam erected by cantilever method is described.
滨州黄河大桥引桥是预应力混凝土连续梁桥,采用C50高性能混凝土。
The approach Bridges of Binzhou Huanghe River bridge are of prestressed concrete continuous girder structures used with C50 high performance concrete.
研究并分析了体外预应力混凝土连续梁弯矩重分布的规律及其影响因素。
The redistribution of moment of model beams and its effect factors are studied and analyzed.
介绍大跨度不对称曲线预应力混凝土连续梁桥的设计和成桥后的静、动载试验。
In this paper, the design of the long span asymmetric prestressed concrete curved continuous girder bridge, and static and dynamic load tests for the completed bridge are described.
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.
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.
从我国已经建成的大跨度预应力混凝土连续梁桥的实践来看,大部分采用悬臂浇注法施工。
In the great span prestressed concrete continuous Bridges which already completed in our country, the majority were constructed by the cantilever concreting.
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.
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.
重点对预应力混凝土连续梁桥使用过程中存在的主要问题、形成原因以及设计对策等方面进行了初步分析和论述。
Emphasis is laid on the problems caused during the service of such Bridges, and initial analysis is made of the causes and countermeasures in the design.
研究目的:预应力混凝土连续梁采用满布支架施工时,常常因为现场浇注的混凝土量过大,而不得不分段进行施工。
Research purposes: the segmental casting method is often used in the full framing construction of prestressed concrete continuous girder because concrete casting in-site is too much.
目前,关于预应力混凝土连续梁、连续刚构的理论研究较为深入,从设计理论上讲已日趋成熟,施工经验也较丰富。
At present, the theoretics of continuous Bridges and continuous rigid-frame Bridges have been researched deeply, design theoretics has matured and the experience of construction has been abundant.
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.
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,.
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.
预应力混凝土连续箱梁与钢混结合梁在公路、铁路工程中的应用越来越普及。
Prestressed concrete continuous box girder and steel-concrete composite girder are more and more adopted in construction of highway and railway.
针对布筋方式不同的预应力钢筋混凝土连续梁结构,采用力法分别求解其预加次内力。
Several types prestressing armoured concrete continuous beams are analysed. Hypo-internal force are separately calculated by introducing mechanics way.
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.
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.
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.
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.
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.
预应力混凝土连续箱梁以其结构刚度好、行车平顺舒适、外形美观、养护简单等优点而备受工程界欢迎。
Prestressed concrete box girder with its structural rigidity for good, smooth driving comfort, appearance handsome, conservation and has the advantages of simple engineering welcome.
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.
预应力混凝土连续曲线箱梁桥应用日益广泛,已经成为现代交通基础设施的重要桥型。
It is the wide application of P. C. continuous curved box-girder bridge which has become an important bridge style in the transportation infrastructure.
合龙段施工是预应力混凝土连续箱梁施工的关键环节,关系到全桥的受力和线形状况。
The closure segment's construction is the key part of continuous concrete box girder's construction, and it is related to stress and line form condition of the whole bridge.
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.
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.
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.
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