钢筋混凝土

The cast-in-site girderless hollow floor slab with the high-strength thin-wall bamboo core is a new structural system after the joist-girder floor slab, ribbed floor slab, unbonded prestressed floor slab.

论文的主要研究内容如下：首先，文章完成了一块四边简支钢筋混凝土竹芯楼盖以及一块相同尺寸的四边简支钢筋混凝土实心双向平板在短期加载条件下的试验。

This paper thoroughly explains the constitutive equations and failure criteria under multiaxial stress state. Models and methods of the nonlinear analysis are introduced in this paper also.

论文介绍了钢筋与混凝土材料在复杂应力状态下的破坏准则和本构关系，以及钢筋混凝土结构非线性分析的模型、理论及方法。

Cracking patterns, streel bars's stress distribution and force-displacement curves at beams ends resulted from the experiments indicate that at location of plastic hinge area the main cracks developed sufficiently and the stress of steel bars was peak values, and no bonding failure of steel bars is found within core region of assemblies.

有限元分析所得裂缝分布、钢筋应力分布以及梁端力－位移曲线反映出，高强钢筋混凝土框架梁柱组合件在低周反复荷载作用下梁端塑性铰区裂缝开展充分，钢筋应力最大，核芯区内钢筋未发生粘结破坏。

This paper proceeded the flexural experiment respectively of two flexural strengthen beam by CFS, one compared reinforced concrete beam, and proceed sheared experiment research of two U style stirrups of CFS combined compacted sheared strengthen beam, one compared reinforced concrete beam. analyze and compare some working characters such as width of cracks, the deflection and ultimate moment of an unstrengthen compared beam, an initial strengthen beam and a beam strengthened after crack by compacting .

本文分别进行了2根粘贴碳纤维布受弯加固梁和1根钢筋混凝土对照梁的受弯试验研究及2根碳纤维布U形箍+压条受剪加固梁和1根钢筋混凝土对照梁的受剪试验研究，分析对比了对照梁、直接加固梁、压裂卸荷后再加固梁三者的挠度、裂缝、极限荷载等工作性能。

The next generation of filled grid decks is represented by IDSI's weldless Concrete Overlayed Steel Decks.

下一代浇注钢筋混凝土桥面以IDSI的无焊接有混凝土覆盖层的钢筋桥面为代表。

Both require at least a 6 inches of reinforced with steel concrete for the base and concrete 9 inch hollow blocks for the walls that are backfilled with concrete during construction.

这都需要至少有一个6英寸的钢筋与钢筋混凝土为基础，并具体9英寸空心砌块为墙壁是回填混凝土施工期间。

It is great help to found the penetration model by comprehending these features. The results indicate that the concrete can withstand more violent penetrating as the steel-ratio is increased.

实验结果表明，含筋率为2%的钢筋混凝土靶板的杭侵彻能力明显高于含筋率为1%的钢筋混凝土靶板。

The results corresponding hasbeen drawn a lot,however,studies on FRP Tubed reinforced concrete columns have been verylimited(The FRP tubes are used to transversly confine concrete,not bearing the axialloads).Based on experimental and theoretical analysis,the mechanical properties of the GFRPtubed reinforced concrete columns under axially loaded are researched.

而针对内置钢筋的FRF套管混凝土结构的研究较少(套管指FRP管不承受轴压力，仅起约束作用)，本文通过试验和理论分析，着重研究了GFRP套管钢筋混凝土组合柱的轴压力学性能。

Parts of box beam are prefabricated in partition and the construction precision is high.

箱梁的钢筋混凝土顶板、钢筋混凝土底板和波形钢腹板等构件分块预制，施工精度高。

In order to meet the current rapid development of the construction industry, reinforced concrete structure of the growing number of situations, to meet the requirements of a large number of steel connections, my company and the Beijing Architecture Design and Research Institute of the success of research and development with international and domestic advanced level reinforced rib peeling rolling straight thread forming series of mechanical and connecting sleeve, bar straight screw connection technology has the following characteristics: 1, on the neutral good, stable performance, high joint strength.

为适应当前建筑业的迅速发展，钢筋混凝土结构日益增多的形势，满足大量钢筋连接的要求，我公司与北京建筑设计研究院成功研制、开发了具有国际国内先进水平的钢筋剥肋滚轧直螺纹成型系列机械和连接套筒，钢筋直螺纹连接技术具有以下特点： 1、对中性好、性能稳定、接头强度高。

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。