本文对三跨预应力连续箱梁桥的边跨与中跨比例问题进行了初步的探讨。
The paper discussed proportion between side span and middle span in three spans prestressed continuous box beam bridge.
本文所研究的上下行分层矮斜拉连续箱梁桥属于无横隔板的双层新型结构。
In this thesis a new double decked, separating up and down vehicles, non-diaphragm and partially cable-stayed bridge structure is presented.
本设计完整的进行了预应力连续箱梁桥的设计及计算，设计结果真实可靠。
Complete the design of a prestressed box-girder bridge for the design and calculation, the true and reliable design.
近年来，混凝土连续箱梁桥在国内为得到了广泛运用，造型美观，安全可靠。
In recent years, concrete continuous box girder bridge has been widely used at home and abroad, which has Attractive appearance, safe and reliable.
普通钢筋混凝土连续箱梁桥产生开裂和过大的变形等问题的产生原因进行了一定的探讨。
The reasons of cracking and large deformation on common reinforced concrete continuous beam bridge were discussed.
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,.
提出一种薄壁箱梁剪力滞后分析的传递矩阵法，实现了连续箱梁桥位移、应力及内力的一维递推求解，给出了相应的场矩阵和点矩阵。
The field transfer matrix and point matrix are derived, and the inner force, stress and deflection of thin-walled box girder are recursivly calculated.
本文对上海一座具有悬臂铰节点的多联曲线连续箱形梁桥的可行性方案提出了两种比较实用的分析方法。
In connection with a proposed multiple curved continuous box girder bridge with cantilever hinged joints in Shanghai, two practical and efficient methods of analysis have been developed.
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.
针对目前连续弯箱梁桥常采用的支承形式，提炼出四种支承体系，分析各支承体系的特点。
Four types of support systems have been summed up in light of continuous curved box-girder bridge supports used, the characteristics of each support system have been analyzed.
介绍了五座城市立交桥或高架桥的钢筋混凝土连续箱梁翼板横向开裂的情况。
The cases of transverse cracking in the flange slabs of reinforced concrete continuous box girders of five urban flyovers or viaducts are introduced.
但是立交桥中常用的结构之一连续箱梁经常在施工中或通车不久就出现裂缝，直接影响桥梁的安全性与耐久性。
But the structure commonly used in overpasses, continuous box-girder, often in construction or traffic soon cracked, directly affecting the safety and durability.
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.
重点介绍了该桥的主桥上连续箱梁混凝土浇筑以及张拉施工技术。
This paper introduces the concrete pouring of continuous box girder of main structure of the bridge and the tension construction technology.
我国已建成的一些大跨径连续梁桥及大跨径连续刚构桥都普遍采用薄壁箱形截面。
The structure of thin-walled box girders are commonly applied in some large span continuous beam bridges and rigid frame bridges in our country.
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.
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.
通过平顶山市庙洪线西斜立交桥工程实例，介绍了现浇混凝土连续箱梁的具体施工方法，并对施工中的关键工序进行了系统探。
According to the overpass bridge project of Miaohong Line in Pingdingshan, the construction technology of cast-in-situ concrete continuous box beam is introduced.
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.
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.
对一座铁路三跨连续PC刚构桥变截面宽幅箱梁进行了空间应力分析。
There is an analysis of spatial stress on variable cross-section wide box girder of three-span continuous PC rigid frame bridge in the paper.
此外，传统混凝土箱梁的腹板斜裂缝问题也己经越来越突出了，直接威胁着连续刚构桥的正常使用。
In addition, traditional concrete box girder webs inclined crack problem has been more and more prominent, direct threat to the continuous rigid frame bridge normal use.
最后介绍了预应力混凝土连续曲线箱梁桥的设计，重点讨论了总体设计，钢束预应力的损失的计算，预设支座偏心调整扭矩等设计中的关键问题。
Lastly design of P. C. continuous curved girder bridge is discussed in the paper, in especial prestress reinforcing steel bar's loss and bearing design.
青岛海湾大桥大沽河航道桥为不对称独塔四跨连续钢箱梁自锚式悬索桥。
The Dagu River Shipping Channel bridge of Qingdao Bay bridge is a single tower self-anchored suspension bridge with asymmetric 4-span continuous steel box girder.
青岛海湾大桥大沽河航道桥为不对称独塔四跨连续钢箱梁自锚式悬索桥。
The Dagu River Shipping Channel bridge of Qingdao Bay bridge is a single tower self-anchored suspension bridge with asymmetric 4-span continuous steel box girder.
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