The stress of spiral rib steel wire in rib forming process is analyzed.

1、

Development of Prestressed Spiral Rib and Spiral Groove Wires with high Strength

高强度预应力螺旋肋、螺旋槽钢丝的研制

互联网摘选

2、

Finite Element Simulation of Rib Forming Process of Spiral Rib Steel Wire

螺旋肋钢丝成肋过程的有限元模拟

互联网摘选

3、

Production and Development Trend of Spiral Rib Steel Wire

螺旋肋钢丝的生产及发展趋势

互联网摘选

4、

In producing high performance prestressed hollow slab, cold rolled rib steel and cold drawing grade ⅱ, grade ⅳ steel were replaced by 1270~ 1570 MPa mid-high strength spiral wire as prestressed reinforcement for hollow slab.

以强度为1270～1570MPa的中高强螺旋肋钢丝代换冷轧带肋钢筋及冷拉Ⅱ级、Ⅳ级钢筋作短向和长向圆孔板的预应力配筋，试生产高效预应力构件已获得成功。

互联网摘选

5、

Studying the stress distribution of the spiral case, reinforcement and cracking development of surrounding concrete by means of 3-D non-linear finite element analysis, in order to obtain a feasible reinforcement amount and arrangement.

根据选定的充水保压值，对蜗壳和外围钢筋混凝土进行非线性分析，对外围混凝土裂缝发展、蜗壳和钢筋的应力分布进行研究，确定合理的混凝土配筋参数；

互联网摘选

6、

The object of this study is to investigate the mechanical properties of reinforced concrete circular columns with circular spiral confining reinforcement by the experimental work, in which the columns were subjected to high intensity reversed cyclic lateral load and constant axial load.

本研究的主要目的在于调查采用了圆形螺旋箍筋的钢筋混凝土延性柱在大变形领域的多次重复加荷条件下的力学性能。

互联网摘选

7、

It is important for good ductility for concrete structures by restricting the axial compression ratios of columns, which may be increased by increased the ratios of hoops and by using continuous compound spiral reinforcement columns.

限制框架柱的轴压比对提高框架结构的延性具有重要意义，可以通过提高配箍率、采用连续复合螺旋箍等措施来适度放宽框架柱轴压比的限值。

互联网摘选

8、

Theoretical Calculation on the Ultimate Strength of Concrete Filled Tubular Columns with Spiral Reinforcement Under Compression Load with Different Eccentricities Experiment Study and Finite Element Analysis on Tensile Anchor Connections with Large Eccentricities

离心螺旋筋管混凝土柱偏心受压承载力的理论计算大偏心受拉锚固节点的试验研究与有限元分析

互联网摘选

9、

Experimental Study on the Load-Deformation Behaviour of Shcrt Concrete Filled Tube-Columns with Spiral Reinforcement under Static Loads

离心螺筋管混凝土轴压短柱在静载作用下变形性能的研究

互联网摘选

10、

In this paper 40 short concrete filled tubular columns with spiral reinforcement under compression loads with different eccentricities are analysed.

本文分析了40根离心螺旋筋管混凝土短柱的偏心受压实验结果。

互联网摘选

11、

The effect of supplement of spiral reinforcement on bearing strength of core concrete are also investigated.

此外还研究了在钢管混凝土局压区设置螺旋箍筋对局压强度的提高作用。

互联网摘选

12、

Reinforcing mechanism of circular spiral reinforcement in reinforced concrete circular columns

钢筋混凝土圆柱中圆形螺旋箍筋的受力机理

互联网摘选

13、

Cohesive Analysis of Cold drawn Spiral Reinforcement

冷拔螺旋钢筋粘结性能分析

互联网摘选

14、

Research and developmental application of cold-drawn spiral reinforcement

冷拔螺旋钢筋试验研究及开发应用

互联网摘选

15、

Digital Emulation of the Continuous System Architecture Diagram With Non-linear Units

含非线性环节的连续系统结构图法数字仿真研究

互联网摘选

16、

The Discrete and Continuous System Identification Based on Genetic Algorithms

基于遗传算法的离散和连续系统辨识

互联网摘选

17、

A parameter estimation method is proposed for a class of nonlinear continuous system.

本文提出一类非线性连续系统的参数估计方法。

互联网摘选

18、

The Application of Ackermann's Formula in Pole-placement of Continuous System

阿克曼公式在连续系统极点配置中的应用

互联网摘选

19、

Analysis and simulation example show that it is a simple and effective fast simulation algorithm for the continuous system having powerful function and satisfactory performance.

理论和实例说明这是一种功能强、性能好、简单有效的连续系统快速仿真方法。

互联网摘选

20、

According to the simulation method of continuous system, the process of cotton dry matter accumulation and its response to the nutrient stress are searched.

采用连续系统模拟方法，研究养分胁迫对棉花干物质累积进程的影响，建立了棉株干物质累积、养分累积与叶面积系数的动态模拟模型；

互联网摘选