查询词典 tubular girder

The paper analyses the nonlinear cracking behavior of reinforced concrete box girder.

对钢筋混凝土箱梁受力开裂破坏的非线性机理进行了研究。

The behavior of a double cell concrete box girder is studied by means of finite element method and experiment.

通过对国内某跨海公铁两用大桥的有限元分析和梁墩固结处缩尺模型试验，研究了单箱双室砼梁在各种荷载下的应力分布以及扭转和剪滞效应等问题，为设计施工提供了依据。

The thermal effect in box girder of prestressed concrete can not be ignored.

预应力混凝土箱型轨道梁桥的温度效应不容忽视，在一定程度上甚至会超过活载作用成为设计的控制因素。

But setting of these abutments leads to more complex mechanics in cross diaphragm and box girder.

然而，这些墩的设置导致箱梁及横隔梁的受力更趋复杂。

For a prestressed concrete curved box girder bridge,the interior bracket transition at the inner side of pier circular curve has 2cm dislocation;the middle consolidated concrete filled steel tube pier has 6.4cm offset to the outer side of circular curve. The demand on safety and service performance of bridge are met by reinforcement.

某预应力曲线连续箱梁桥，在施工支架拆除后，过渡墩圆曲线内侧支座脱空2cm，中间固结钢管混凝土墩向圆曲线外侧偏6.4cm，通过加固满足了桥梁安全和使用性能的要求。

Uncertain factors in construction of continuous girder bridge such as side span joint scheme and different balanced cantilever construction speed are analyzed.

对施工中的不确定因素，诸如边跨合拢方案和不同桥墩悬浇进度不一致等进行了分析比较。

This paper describes in details the principle, the operation and the experience for modifying the down deflection of a fixed-girder for bucket wheel stacker/reclaimer and keeping its pre-designed up deflection by means of firing and pre-tension method.

详细介绍用火焰法和预拉力法矫正斗轮机固定梁下挠并保持其拱度的原理、操作方法及经验教训。

Construction scheme (construction workmanship, support drawing, static power and deformation calculation) shall submit to Engineer for approval prior to casting box girder not less than 18 days. They can not be performed before getting approval.

在支架浇注箱梁前18天，将施工方案（施工工艺、支架图纸、静力及变形计算）报请监理工程师审批，获得批准后实施。

Basing on the statistic datum existed of bridge deck pavements, analyze the main failure modes and its main causes to damage on different styles of bridge, at the same time, through the big calculation software ,establish the space models to simulate the course of mechanics of bridge deck pavements, analyze the main factors which affect the bridge deck pavement"s mechanics and the relations between them; according to the atmospheric circulation circumstances of bridge deck pavements, take the statistic datum of using life of prefabricated T-beam、box girders and casting girder in region of HUA-NAN as examples to returning analysis ,establishing the life prediction model of this style bridges; associating "the Method of Estimating to Life Cycle Costing,bring forward this method to take a evaluation of economy on bridge deck pavements, insure the life cycle costing reasonable; giving some tactics on the design of bridge deck pavements.

以既有桥梁的桥面铺装层使用现状统计资料为基础，分析了各种类型桥面铺装层的主要破坏形式及其主要损伤原因，同时利用结构分析软件，对桥面铺装层建立空间模型模拟其受力作用过程，分析影响桥面铺装层受力大小的主要因素以及各因素与铺装层受力大小之间的关系；按照桥面铺装层所处环境的不同，以华南地区预制T、箱梁和现浇梁的桥面铺装层正常使用寿命统计数据为例，通过回归分析建立该类型桥面铺装层的正常使用寿命预测模型；利用寿命周期费用评价方法，对特定铺装层的设计方案某一参数的变化所带来的经济效益进行评价；给出桥面铺装层设计构造建议。

This paper presents precise analysis on wall girder torsion of cold bend thin-section steel channel of 2 or 3 continuous bays commonly used.

对单层工业厂房中常用的二跨、三跨连续冷弯簿壁槽钢截面墙梁的扭转问题进行了精确的理论分析。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。