1.With the development of the techniques for seismic mitigation and isolation, the fluid viscous dampers are usually equipped at the girder ends of long-span bridges in case the girder ends need to be restricted due to great amount of girder movement or the costly large expansion joints at the girder ends need to be protected.
摘要随着减隔震技术的发展，在大跨度桥梁中，当梁端位移比较大需要限制位移（或梁端设置有价格高昂的大型伸缩缝，需要保护伸缩缝）时，梁端会设置阻尼器。
2.During cantilever construction of large span cable-stayed bridge steel box girder, the local relative deformation of steel box girder is obviously different between girder to be suspended and girder supporting crane.
摘要大跨度斜拉桥主梁悬臂拼装匹配过程中，吊机作用梁段和被起吊梁段由于受力不同，相对变形存在较大差异。
3.With reference to the cantilever erection of the continuous steel box girder of Zhuanxing Road Overhead Bridge crossing Shenfengjin Expressway in Shanghai, this paper mainly describes the application of PLC-controlled hydraulic sync jack-up system to the balanced cantilever erection of the box girder, closure construction of the girder at midspan, and the operation, control key points and corresponding technical requirements for application of the system.
摘要结合上海莘奉金高速公路颛兴路跨线连续钢箱梁悬臂架设施工，重点阐述了PLC控制液压同步顶升系统在钢箱梁“对称悬拼，跨中合龙”中的应用及操作控制要点、技术要求。
4.In conjunction with a project of the Transport Department of Hunan province, a series of experimental and analytical research on the long-span PC bridges with thin-walled box girder, including the thermal field in box girder, the thermal effects, the shrinkage and creep effects of Box Girder Bridge, and the prestress losses, have been performed in this dissertation.
本文依托湖南省交通厅项目“混凝土薄壁箱梁桥的非荷载效应研究”对大跨预应力混凝土薄壁箱梁桥进行了一系列的现场测试与分析,包括混凝土薄壁箱梁的温度场及其效应、箱梁桥的收缩徐变效应和箱梁预应力损失等试验研究与分析。 主要研究内容如下(分三个方面):
5.The analysis of restrained-torsion effect for a prestressed reinforced con- crete contlnuous box girder, 40+4×64+40m, is presented in this paper, which is a girder of the railway bridge. A three. span continuous box girder model made by perspex with a scale of 1:20 subjected to torsional moment is used to examine the calculated value.
本文介绍了运用广义座标法对于铁路桥梁设计40+4×64+40m预应力混凝土连续箱梁所作的约束扭转分析,以及比例尺为1:20的有机玻璃模型约束扭转试验结果。
6.Based on the conceptual considerations and structural design of Pingsheng Bridge in Foshan, the first single tower and single span hybrid girder self-anchored suspension bridge in the world, the original technical achievements of the Bridge, such as those of the integral bridge tower and separated stiffening girders, the stiffening hybrid girders, structural types of steel-concrete girder joint parts, steel box girder incremental launching and hanger adjustment, are presented and the key and innovative techniques for the self-anchored suspension bridge are described in a summarized account as well.
摘要通过世界上首座独塔单跨混合梁自锚式悬索桥－佛山平胜大桥的方案构思及结构设计，介绍了其采用的整体桥塔分离式加劲梁桥型结构、混合加劲梁、钢－混凝土结合段构造型式、钢箱梁顶推技术、吊索调索技术等原创性工程技术成果，综述了自锚式悬索桥设计的关键和创新技术。
7.Using waveform steel web to replace conventional PC box girder web may greatly reduce dead weight of PC box girder,meliorate strain condition of girder body and save material,also it may reduce project volume of lower structure and reduce project cost.
用波形钢板取代传统PC箱梁的腹板,能够大大减轻PC箱梁的自重,改善梁体的受力状况,节省材料,同时可以减少下部结构的工程量,从而降低工程造价。
8.During the cantilever construction of main girder of a concrete cable-stayed bridge, the main girder at the temporary rigid fixity area of pylon and girder is vulnerable to cracking when the conventional temporary rigid fixity structure is used.
摘要在混凝土斜拉桥主梁悬臂施工过程中，采用传统的塔梁临时固结构造存在临时固结处的主梁容易开裂问题。
9.Based on the analysis and comparison of influences of various intermediate support bearing types on the internal forces of the curved girder bridges, the applicable conditions of the different hearing types for design of the curved girder bridges with fairly narrow decks and sharp radii have been obtained.
摘要通过中支点不同的支承形式对曲线梁桥内力影响的分析和比较，得出不同的支承形式在较窄和曲线半径较小曲线梁桥设计中的适用条件。
10.The construction behaviour about bored piles and hollow plate girder hanged by demountably protable girder erecting machine was introduced during the construction of Bangladesh Karatoya River Highway Bridge undertaken by China.
介绍中国援孟加拉国的卡洛多瓦（Karatoya）河公路桥建造中，筑岛深砂层钻孔灌注桩及采用拆装式轻便架桥机吊装空心板梁的施工情况。
