钢筋混凝土

Main body steel structure forms the overall giantism space shape of a saddle steel truss weaving dyadic "bird nest" structure , steel structure always uses steel amounts to be 42,000 tons , mark, concrete bleachers having been , is hit by , three tiers down, bleachers concrete structure is 7 tiers of ground armoured concrete frames- shearing force wall structure system undergroundly 1 tier.

主体钢结构形成整体的巨型空间马鞍形钢桁架编织式"鸟巢"结构，钢结构总用钢量为4.2万吨，混凝土看台分为上、中、下三层，看台混凝土结构为地下1层，地上7层的钢筋混凝土框架-剪力墙结构体系。

No matter axial pressing or small eccentricity pressing of CFSTRC, it can be concluded such conclusions as following.(1)Compared with normal concrete filled steel tube, the CFSTRC has better ductibility and limited load-carrying capacity. The outer reinforced concrete offers much help to yield load and limited load.

可以得出，无论是轴心受压还是小偏心受压：(1)钢管高强混凝土核心柱比普通钢管混凝土柱具有更好的延性和承载能力，核心柱外围钢筋混凝土对屈服荷载和极限荷载的贡献较大。

The steel structure of the main body forms the whole giant spatial saddle-shaped steel truss knitting type "the bird nest", the steel structure totally uses the steel quantity is 42,000 tons ,the concretes stand divides into upper, middle and lower three, the stand concrete structure is underground 1 ,on the ground 7 floor of reinforced concrete frame - shear wall structural system.

主体钢结构形成整体的巨型空间马鞍形钢桁架编织式"鸟巢"结构，钢结构总用钢量为4.2万吨，混凝土看台分为上、中、下三层，看台混凝土结构为地下1层，地上7层的钢筋混凝土框架-剪力墙结构体系。

To simplify FEM analysis of concrete creep, the function to creep coefficient is proposed as per the Code for Design of Highway RC and PC Bridges and Culverts (JTG D62-2004), using a synthesis optimization software package "1 stopt" for stepped fitting with exponential functions.

为了便于进行混凝土徐变有限元分析，对JTG D62-2004《公路钢筋混凝土及预应力混凝土桥涵设计规范》提出的徐变系数函数，应用综合优化软件包1stopt进行分段指数函数拟合。

The construction steps in rigid-frame bridge construction are full framing erection, in-situ casting of arch rib and straining concrete beam,folding of the arch ribs into a whole arch together,installation of the minor angle block and concrete filling till the deck forms into an integrity.

钢筋混凝土刚架拱桥现浇施工工艺主要是搭设满堂拱架，现浇拱片、横系梁混凝土，使主拱先合拢成单片拱片，然后安装微弯板、再浇筑混凝土填平层及桥面形成整体。

1 Contrast unstrengthened square reinforced concrete column and 10 reinforced concrete columns strengthened by circular steel jacket were tested under axial loading .

为研究圆形钢套管加固混凝土柱的基本力学性能，进行了1根未加固的普通钢筋混凝土柱和10根圆形钢套管加固的混凝土短柱在不同加固钢套管厚度及初始轴压比下轴心受压试验，初始轴力通过对未加固试件施加后张预应力来进行模拟；在试验研究的基础上，根据应变协调原则对加固后构件轴压承载力进行了数值分析。

To study the basic mechanical performance of reinforced concrete column strengthened by circular steel jacket,a set of experimental work was carried out.1 contrast unstrengthened square reinforced concrete column and 10 reinforced concrete columns strengthened by circular steel jacket were tested under axial loading.

为研究圆形钢套管加固混凝土柱的基本力学性能，进行了1根未加固的普通钢筋混凝土柱和10根圆形钢套管加固的混凝土短柱在不同加固钢套管厚度及初始轴压比下轴心受压试验，初始轴力通过对未加固试件施加后张预应力来进行模拟；在试验研究的基础上，根据应变协调原则对加固后构件轴压承载力进行了数值分析。

The major concentsare summarized as follows: 1.Experimental research on the GFRP Tubed short reinforced concrete columns underaxially loaded are carried out to investigate the mechanical properties of working feature, theeffect of GFRP tube confining,ductility of the specimens.The effects of concrete strength,loading condition,ratio of longitudinal reinforcement and ratio of stirrups are researched.

完成了以下工作： 1、通过GFRP套管钢筋混凝土组合短柱的轴心受压试验，研究其工作机理、破坏形态、GFRP管对混凝土的约束效果、延性，试验研究了影响这种组合短柱轴压力学性能的部分因素，包括混凝土强度，GFRP管不同的受力方式，纵筋配筋率，体积配箍率等。

A new type of semi-connected edge joint with core steel tube which connects concrete filled steel tubularcolumn with RC beams was proposed.

引言一种用芯钢管连接的不连通钢管混凝土柱的节点形式[1-3]，用于钢管混凝土柱与钢筋混凝土梁的连接节点。

Field investigations on reinforced concrete structures in Qinghai salt lake region discovered that corrosions of concrete and steel reinforced concrete were particularly serious and universal.

第二章简要介绍了我国盐湖地区的环境气候条件，针对典型盐湖卤水中含有的对混凝土产生物理化学腐蚀的侵蚀性离子浓度，重新划分了盐湖卤水的类型，现场考察了混凝土与钢筋混凝土结构在青海盐湖地区的腐蚀与破坏现状。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。