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The research contents mainly include: First, the influence of foundation constraint condition to the temperature stress is analyzed, the temperature stress formula of ultra-long concrete anchor plate is deduced, then the influence of length to structure crack can be gotten from the formula. Second, a breathing method is set up to solve the problem of temperature stress in ultra-long concrete constructions. By setting the sliding floor, a breathing system is built up and the temperature stress reduced distinctly. Third, the effect of prestress technique in the control of temperature stress is analyzed, it is simulated and calculated through FEA to get the right way to apply the prestress. Forth, the delay of temperature field and unsteady conduction is considered, the temperature field of ultra-long concrete structure with later poured band is simulated, then temperature stress distribution after casting the concrete is calculated, finally the effect of later poured band to temperature stress of ultra-long structure is analyzed.

本文的研究内容主要包括:(1)分析了基础约束对超长混凝土结构温度应力的影响,推导了超长混凝土地基板温度应力公式,从而得出长度对结构裂缝的影响;(2)针对超长混凝土裂缝问题,提出了一种可呼吸的解决方法,通过设置滑动层,使结构成为一种"可呼吸"体系,从而有效的降低温度应力;(3)分析了预应力技术在控制超长结构温度应力中的作用,通过有限元模拟计算,得到合理的预应力施加方式;(4)考虑温度场的滞后效应及不稳定传导,对带后带超长混凝土结构注后的温度场仿真模拟,计算注后的温度应力分布,分析后带对超长结构温度应力的影响。

Instantly the spirit left the room, but in another instant he returned with a barrel on his back, and poured the contents over the flower; and again and again he went and came, and poured more and more water, till the floor of the room was ankle-deep.

魔鬼倏地离开了房间,眨眼间又返回来了,背上是一个大大的木桶,把桶里的东西向那盆天竺葵。魔鬼来来去去,一遍又一遍地着,水越来越多,眼看着地上的水都淹到脚腕了。

Checking and the setting of camber are to be discussed. Firstly, the categories of scaffolds and applying condition of all kinds of scaffolds are simply introduced. Then structure design for beam -column scaffold over sea, beam-column scaffold on land, beam scaffold over sea, ramp bridge scaffold and column scaffold on land are presented. And corresponding formulas and the finite element analysis software of Midas/Civil are used to check strength, stiffness and stability on these scaffolds in detail. Then calculating methods on construction camber of cast-in-place beam scaffold and setting methods are introduced.

本文简要介绍了现梁支架的分类、各种支架的使用条件,然后简述了海上梁柱式支架、陆上梁柱式支架、海上梁式支架、匝道桥梁式支架以及陆上立柱式支架的结构设计;并应用相关公式和大型有限元计算软件MIDAS/Civil对各种类型的支架结构详细进行了强度、刚度和稳定性验算;接着介绍了现梁支架的施工预拱度计算方法及设置方法。

By means of thermodynamics calculation and analysis for samples,the carburization was further researched.

钢中的碳对超低碳钢的性能有很大的影响,针对鞍钢 ASP 中薄板坯连铸生产超低碳钢异钢种连过程中铸坯增碳的问题,通过理论计算和取样分析,对异钢种连过程铸坯增碳进行了研究,并对工艺进行改进。

If he were to invite you to dinner, he'd feed you spaghetti made with lemon sauce, probably washed down with some nice fresh Chianti.

如果他邀请你去吃饭,他会给你点上柠檬汁的意大利面,或许还会上一些勤地酒。

Although root system is damaged or without the root, there should be certain moisture and nutrient inside foliaceous cup only, plant can grow normally, water so in had better irrigating Yu Xie cup directly, do not irrigate in basin earth.

即使根系受损或无根,只要叶杯内有一定的水分和养分,植株就能正常生长,所以水最好直接于叶杯中,不要于盆土中。

As the first part of a research program to obtain a quantitative design method for overcoming diagonal cracks in cast-in-site concrete floor due to shrinkage and temperature differences, 12 RC concrete slabs strengthened by WMM were tested. The influence of layer number and volume fraction of wire mesh on crack space and width were discussed.

作为定量解决房屋现楼板收缩温差斜角裂缝问题研究的开端,用钢丝网砂浆对12块板现钢筋混凝土板进行加固和对比试验研究,探讨了钢丝网层数和配筋率对裂缝间距和宽度的影响。

And Jacob set up a pillar in the place where He had spoken with him, a pillar of stone; and he poured out a drink offering on it and poured oil on it.

35:14 雅各便在神与他说话的地方立了一根石柱,在柱上了奠祭,并且上油。

A film gate is similar to a ring gate , but it is used for straight edges .

薄膜口与环状口相识,但使用于边缘平直的塑件。

Using numerical simulation technology and method of orthogonal experiment design and single factor rotating optimization, this thesis makes a study of "lost core injection ", thus achieve the optimization of the parameters of molding process, to offer basic reference when developing production technology and mould of the plastics intake manifold. Based on the study of the status in quo and development trend of weight reduction on automobile, the application of plastics to automobile and intake manifold, then under the guidance of theory model and numerical simulation technology in the process of high polymer material, this thesis launches flowing main research work: First of all, on the basis of the three-dimensional model of the part and finite element net model, several designs of gating and running system are numerically simulated and analyzed via MPA of Moldflow.

本文在对当今汽车轻量化、零部件塑料化以及的汽车进气歧管塑料化的发展现状和发展趋势进行了研究和简要介绍,然后在高分子材料成型过程中的理论模型和数值计算方法的指导下,展开主要的研究工作:首先,在零件三维模型和有限元网格模型的基础上,使用Moldflow 的MPA模块对塑料进气歧管的多个注系统设计方案进行数值模拟,通过分析各个方案的充填质量、熔接线位置及数量等指标,得到了综合质量较高的4 个进料口的口位置及半限制型口大小的注系统。

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推荐网络例句

However, as the name(read-only memory)implies, CD disks cannot be written onorchanged in any way.

然而,正如其名字所指出的那样,CD盘不能写,也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口,替代木托盘,免薰蒸,符合欧盟、北美各国对出口货物包装材料的法令要求;喷涂钢托盘适用于重载上货架之用,托盘表面根据需要制作成平板状、波纹状及间隔形式,满足不同的使用要求。

A single payment file can be uploaded from an ERP system to effect all pan-China RMB payments and overseas payments in all currencies.

付款指令文件可从您的 ERP 系统上传到我们的电子银行系统来只是国内及对海外各种币种付款。