混凝土箱梁,concrete box girder
1)concrete box girder混凝土箱梁
1.Updating coupling method of hydration heat temperature damage forconcrete box girder;混凝土箱梁水化热温度损伤修正耦合方法
2.Analysis and field measurement ofconcrete box girder bridges for shrinkage and creep effects;大跨预应力混凝土箱梁桥收缩徐变效应测试与分析
3.Numerical assessment for laying-curing project ofconcrete box girder;混凝土箱梁浇筑养护方案数值评估研究
英文短句/例句
1.Analysis of Bearing Load Capacity and Crack for Prestressed Concrte Box Girder Bridge;预应力混凝土箱梁承载力与裂缝研究
2.Research on Dynamic Characteristic of Concrete Box-Girder with Corrugated Steel Webs;波纹钢腹板混凝土箱梁动力特性研究
3.The Research on Reliability of the Existing Concrete Box-girder Bridge with Cracks;在用开裂混凝土箱梁桥的可靠度研究
4.Time-history Analysis of Temperature Action and Temperature Effects in Concrete Box Girder;混凝土箱梁温度作用效应的时程分析
5.Study on the Key Factors of Temperature Effect of Concrete Box-girder Bridges混凝土箱梁桥温度效应关键因素研究
6.Temperature influence of reinforced concrete box beam on test预应力混凝土箱梁试验时的温度影响
7.Construction technology for adjustment of 1750 t concrete box pier top deviation1750t混凝土箱梁墩顶偏差调整施工工艺
8.The simulation analysis of concrete box beam web plate stress混凝土箱梁腹板受力状态的模拟分析
9.The Research on Technology of Concrete Box Girder Being Broaden with Steel Cantilever Beam;增设钢悬臂梁加宽混凝土箱梁技术研究
10.Reliability Analysis of Existing Prestressed Composite Box Girder Bridge Superstructures预应力混凝土箱梁桥主梁的可靠性分析
11.prestressed concrete box girder用预应力混凝土建成的箱形梁
12.Nonlinear Analysis of the Corroded Reinforcement Concrete Thin-box Beams;锈蚀钢筋混凝土薄壁箱梁非线性分析
13.Test Research into the P.C. Continuous Curved Box Girder Bridge;预应力混凝土连续弯箱梁桥试验研究
14.Technical Research of Asphalt Concrete Pavement on Steel-Girder Bridge Deck钢箱梁桥面沥青混凝土铺装技术研究
15.Temperature Analysis of Steel-concrete Composite Girder Caused by Solar Radiation钢-混凝土组合箱梁日照温度场分析
16.Discussion on box beam durability concrete construction of passenger dedicated line客运专线箱梁耐久性混凝土施工初探
17.Reinforcement of Prestressed Concrete Curved Box Girder Bridge某预应力混凝土曲线连续箱梁桥加固
18.Construction of the prestressed concrete continuous box beam cantilever casting预应力混凝土连续箱梁悬臂灌注施工
相关短句/例句
concrete box beam混凝土箱梁
1.Prefabrication technology ofconcrete box beam;混凝土箱梁预制施工工艺
2.Wheel rail transportation system for super largeconcrete box beam;超大型混凝土箱梁轮轨运输体系
3.Calculation and experiment analysis ofconcrete box beam bridge panel;混凝土箱梁桥面板计算与试验分析
3)concrete box-girder混凝土箱梁
1.3-D thermal stress computation method of highwayconcrete box-girder;公路混凝土箱梁三维温度应力计算方法
2.On several measures for winter construction of prestressedconcrete box-girder浅谈预应力混凝土箱梁冬季施工的几点措施
3.This paper introduces a method of simulating temperature distributions inconcrete box-girder, which bases on weather information and uses the general finite element program of ANSYS.分析结果表明本文方法可以较好地模拟混凝土的温度场,计算结果可以为混凝土箱梁的温度控制提供参考。
4)concrete box girders混凝土箱梁
1.Observation and research on temperature distributioninconcrete box girders;混凝土箱梁温度分布观测与研究
2.Research onconcrete box girders temperature stress;混凝土箱梁温度应力研究
3.Aimed at the unreasonable calculation methods for cantilever slabs ofconcrete box girders,based on FEM and some kinds of calculation methods,a analyses is performed by sub-model technique to study the influence of several parameters,such as distortion for box girders,length and degree of slope for cantilever slabs as well as load location.针对目前混凝土箱梁悬臂板计算的不合理性,以有限元为基础,结合诸多算法,应用子模型技术分析了箱梁畸变、悬臂板长度及坡度、荷载作用位置等参数对混凝土箱梁悬臂板有效分布宽度的影响规律。
5)concrete box bridge混凝土箱梁
1.Safety mode for evaluating hydration heat temperature damage onconcrete box bridge;混凝土箱梁水化热温度损伤安全评价模型研究
bining the sub-model analysis technology,concrete box bridge cantilever can be carried on simulation analysis with solid and shell elements.研究子模型技术在混凝土箱梁悬臂板实体单元建模分析中的3种方法及实施技巧,考察悬臂板根部内力的影响因素:厚度、长度、箱梁畸变及荷载作用位置。
3.Being aimed to the irrationality and inadaptability of different calculation methods for wide cantilever plate,study of space numeric simulation analysis aboutconcrete box bridge cantilever plate can be carried out for three dimension solids based on ANSYS.针对混凝土箱梁悬臂板诸多算法的不合理性,应用大型通用有限元分析软件ANSYS,以三维实体单元对混凝土箱梁悬臂板进行空间数值仿真分析研究。
6)concrete box girder箱梁混凝土
1.Preventive measures and quality control on prestressedconcrete box girder for city expressway;城市快速路预应力箱梁混凝土质量控制及预防措施
延伸阅读
混凝土吊车梁设计混凝土吊车梁设计design of concrete crane girderhunningtu diaoehe!iang sheji混凝土吊车梁设计(design of Conerete craneglrder)混凝土吊车梁来统设计的组成部分。混凝土吊车梁是供吊车行驶的混凝土梁式承重结构。设计主要内容包括选型、材料与锚具、计算与构造。选型吊车梁的型式可根据吊车吨位、操作制、跨度、材料供应和施工条件选择。一般可按以下条件进行选型:对于6m跨吊车梁，当重级工作制吊车为5~20t或中级工作制吊车为5~30t时可按国家标准图选用钢筋混凝土吊车梁(图la);当吊车起重量大于30t时，对有张拉台座的施工现场，可优先选用先张法预应力混凝土吊车梁(图lb)。对于12m跨吊车梁，宜选用后张法预应力混凝土折线形吊车梁(图2)，由于其外形与弯矩包络图接近，各项技术经济指标均优于其他类型预应力混凝土吊车梁，外形也较美观。1一‘一而杜兰二习华二兰丛一斗牛一生鲤一书一 禅粱权棘家 l一12一2 l一12一2口b 图1等截面吊车梁 a一钢筋混凝土吊车梁;乙一预应力混凝土吊车梁 (嵘羊牙口 甲匹酉图2折线形吊车梁材料与锚具用于钢筋混凝土吊车梁的混凝土强度等级一般采用C30。用于预应力混凝土吊车梁的混凝土强度等级为C3o一Cso，一般采用C4o。钢筋混凝土吊车梁和预应力混凝土吊车梁中的非预应力主筋宜采用l级钢筋;其他部位采用I级或l级钢筋。预应力先张法吊车梁宜采用冷拉W级或l级钢筋;预应力后张法吊车梁宜采用冷拉Iv级钢筋、碳素钥丝或钢绞线。直径为12mm的I、I、Iv级钢筋和钢绞线一般采用JM12型夹片锚具;钢丝束可采用锥形锚具。计算与构造钢筋混凝土和预应力混凝土吊车梁，须进行以下几种计算:(l)承载力计算。包括正截面双向受弯承载力和斜截面受剪及受扭的承载力计算。(2)变形验算(预应力混凝土吊车梁可不作变形验算)。(3)抗裂或裂缝宽度验算。此时，对预应力钢筋须考虑其预应力损失值和各阶段应力损失的组合，计算求得的总损失值，对于先张法吊车梁应不小于10oN/mmZ，对于后张法吊车梁应不小于80N/mm，。(4)疲劳强度验算。承受重级或中级工作制吊车的吊车梁需进行正截面及斜截面疲劳强度验算。(5)预应力混凝土吊车梁端部的局部受压承载力计算。用于露天栈桥的吊车梁，要考虑风荷载与横向水平荷载的同时作用。吊车梁的腹板厚度可根据设计和施工条件选择，即按梁施工时为竖直浇灌或平卧浇灌以及后张法预应力钢筋束孔道在梁腹板中穿行的可能性进行考虑。预应力混凝土吊车梁高度按下式确定:当跨度为6m时，h一L/7~L/4;当跨度为12m时，h一L/10一L/8(吊车为20t及其以下)或h一L/7~L/5(吊车为30t及其以上)，L为梁的计算跨度。对变高度吊车梁，其端部高度不宜小于600mm。 (单菊铭翟冠雄)
