UC知道求论文摘要的汉译英
来源：百度知道 编辑：UC知道 时间：2024/07/06 22:33:53
薄壁离心钢管混凝土结构是20世纪90年代中期出现的一种钢混凝土复合结构。它是在钢管内填充混凝土，用离心法制成的一种新型钢-混凝土复合结构。其特点是体形小、承载力高、刚度大、具有良好的塑性和韧性、抗震性能好、耐疲劳、不怕冲击、结构连接简单等。
该结构受力时,钢管可借助离心混凝土的内衬,增加管壁的稳定性,提高构件的抗压承载能力,又可防止钢管内壁的锈蚀;混凝土可借助钢管的约束,处于双向或三向受压应力状态,从而大大提高了混凝土的抗压强度及抵抗变形的能力。
本文首先通过分析圆锥形薄壁离心钢管混凝土构件工作状态阶段的综合抗弯刚度，提出圆锥形薄壁离心钢管混凝土构件任意截面综合抗弯刚度的简化计算公式；然后由细长压杆的挠曲线微分方程，利用微分方程的幂技术解法和贝塞尔尔函数的微分关系得到锥形薄壁离心钢管混凝土结构在轴向荷载P作用下的位移Y与转角Y的表达式；最后利用位移Y与转角Y的表达式得到常见的固定端约束条件的临界载荷计算公式及稳定方程。并由此编程绘制出临界载荷与相关参数的关系曲线。
关键字 混凝土 刚度 临界力 稳定方程
Abstract
Centrifugal thin-walled pipe concrete structure is the mid-1990s in a steel concrete composite structure. It is in the pipe filled with concrete, using the centrifugal method into a new steel - concrete composite structure. Characterized by small size, high-capacity, stiffness, plastic and has a good toughness, seismic performance, and resistant to fatigue, not afraid of shocks, such as simply connecting structure.
The structure of the force, the pipe can draw support from the centrifugal concrete lining, increasing the stability of the wall, improve the components of the compressive load, to prevent corrosion of the pipe wall, concrete can be bound with steel pipes, in a two-way or three to Compression stress, thereby greatly increasing the compressive strength of concrete and the ability to resist deformation.
In this paper, through the cone of thin-walled pipe concrete structures of centrifugal stage of comprehensive state bending rigidity, thin-walled