钢筋

The study on modeling and programming of the responses of reinforced concrete structures in fires relates many fields such as combustion, heat transfer, engineering mechanical, engineering mathematics, finite element method, software engineering, computer graphics etc.

对钢筋混凝土结构在火灾中的反应进行数值模拟及软件开发，涉及到很多学科，包括燃烧学、传热学、工程力学、材料科学、工程数学、有限元技术、软件工程学。

The study on modeling and programming of the responses of reinforced concrete structures in fires relates many fields such as combustion, heat transfer, engineering mechanical, engineering mathematics, finite element method, software engineering, computer graphics etc. Thus, more analytical, experimental, and programming work is needed before STRUFIRE can be used as calculation and design tool by practicing engineers.

对钢筋混凝土结构在火灾中的反应进行数值模拟及软件开发，涉及到很多学科，包括燃烧学、传热学、工程力学、材料科学、工程数学、有限元技术、软件工程学、计算机图形学等，因此，要想把STRUFRE开发成面向工程实际的结构抗火分析及设计软件，还有大量艰苦工作要做。

The elastic stress diagram design method is behind the times and cant meet the command in practice.In the paper the author collected and analyzed a large amount of data about the SLRCP on several typical domestic model experiments and the projects in practice. By summarizing and analyzing the data, the author set up a typical computing model and analyzed the model by the software ANSYS, by reading the output data of the stress and the crack from the program, combined with the experimental results, the author summarized the destroy procession of the stock. The paper also discussed the influence of other main factors to the crack and the stress besides the internal water pressure, such as the concrete material, the dimension of stock and the way of laid-out steel bars.

本文通过对大量实际工程中的坝后背管资料的收集、归纳和分析，选取了具有代表性的计算模型；用有限元软件ANSYS计算了典型坝后背管结构在实际内水压力作用下的应力分布和裂缝发展情况；以国内几个有代表性的模型试验和有限元计算的成果为依据，分析了在内水压力作用下钢衬钢筋混凝土压力管道管壁裂缝的特点，并尝试总结出此种管道的裂缝出现的原因及其发展规律，同时确定了坝后背管结构极限状态的新的定义方式——以坝后背管的裂缝宽度来定义。

To solve the problems of the contraction distortion and the temperature stress, we usually set strain commissure, which is not expected when considering the art effect.

为了解决钢筋混凝土收缩变形和温度应力的影响，通常是需要设置变形缝，但从建筑的艺术效果出发不希望设置缝。

Real estate experts, the general quality of the new premises cracks some common and not harm to the main structure, the maintenance could be solved; There are not easy to handle the cracks, some of the concrete itself may be limited, quality problems, and even reinforced their intensity and laying spacing problems may affect the useful life of housing, serious security problems will occur.

房产专家介绍，新房裂缝有些是一般的质量通病，不伤及到主体结构，维修就可以解决；还有的裂缝就不好说了，有的可能是混凝土本身的配比、质量有问题，甚至钢筋本身的强度和铺设的间距有问题，有可能影响房屋的使用年限，严重的会发生安全问题。

With realizing these classes, reinforced concrete finite element nonlinear computing program is developed.

通过对这些类的实现，编制了较为完整的钢筋混凝土有限元非线性计算分析程序。

An experimental study, in which six columns were loaded concentrically to investigate the behavior of reinforced normal strength and high strength circular columns under concentric compression, is described.

通过对6根圆柱体钢筋混凝土柱的轴压试验，研究普通及高强混凝土柱的轴向受压性能。

An experimental study, in which six columns were loaded concentrically to investigate the behavior of reinforced normal strength and high strength circular colu mns under concentric compression, is described.

通过对6根圆柱体钢筋混凝土柱的轴压试验，研究普通及高强混凝土柱的轴向受压性能。

But their words helpedpierce the concrete and concertina wire of the Iron Curtain.

许多人因散发传单受到残酷迫害，但他们的声音帮助穿透了"铁幕"的钢筋水泥和带刺的铁丝网。

For a large number of reinforced concrete structural analysis problems,can only use ...

对于大量的钢筋混凝土结构分析问题，只能用数值方法解决。

It has been put forward that there exists single Ball point and double Ball points on the symmetrical connecting-rod curves of equilateral mechanisms.

从鲍尔点的形成原理出发，分析对称连杆曲线上鲍尔点的产生条件，提出等边机构的对称连杆曲线上有单鲍尔点和双鲍尔点。

The factory affiliated to the Group primarily manufactures multiple-purpose pincers, baking kits, knives, scissors, kitchenware, gardening tools and beauty care kits as well as other hardware tools, the annual production value of which reaches US$ 30 million dollars.

集团所属工厂主要生产多用钳、烤具、刀具、剪刀、厨具、花园工具、美容套等五金产品，年生产总值3000万美元，产品价廉物美、选料上乘、质量保证，深受国内外客户的青睐