UC知道帮忙翻译一下这段摘要
来源：百度知道 编辑：UC知道 时间：2024/06/26 06:29:51
除悬索桥外，斜拉桥的跨径一般大于其他形式的桥，而且斜拉桥可以通过调整索力来使截面控制弯矩减小，达到最优化。近年来由于高强钢材的飞跃发展，使得桥梁跨径得以增大。近40年来斜拉桥在世界范围内已得到了很大的发展，其分布包括诸先进国家与发展中国家。
本设计为一座32+61+256+61+32m的双塔结合梁斜拉桥。结合梁斜拉桥是一种主梁为钢结构，桥面系为混凝土结构，主梁与桥面系结合在一起共同受力的斜拉桥。主梁采用悬臂施工。根据其他结合梁斜拉桥设计经验和设计规范，拟定桥塔高72m，塔上标准索距4m；主梁高2m，标准节段长11.7m，密索区主梁节段长6m，辅助墩设在离边跨32m处。高跨比1/128，塔高跨比1/3.7,宽跨比1/9.66。桥塔顺桥向采用柱形，横桥向采用H形。主梁采用悬臂施工，这样能突出直线感与柔细感，可以满足景观上的要求。
设计工作包括：确定桥跨基本布置和斜拉桥各结构参数,计算第一、第二体系并且验算各体系的受力情况。另外还进行了施工流程的设计和材料数量的汇总。
本设计主要通过BSAS（教学版）软件对斜拉桥进行电算。将索视为弹性支座，梁视为连续梁，塔为压弯构件。同时，为了更好的掌握斜拉桥的特点，采用有限元的理论。考虑恒载和活载的组合来分析结构的内力、变形、疲劳，然后对桥塔进行配筋计算；对主梁、斜拉索、桥塔进行检算；完成结构设计。
关键词： 斜拉桥 结合梁 设计 疲劳 辅助墩
Abstract
In addition to suspension bridge, the long-span cable-stayed bridge generally larger than other forms of bridge and cable-stayed bridge can be adjusted to make the cross-section of the cable control moment reduced to optimize. In recent years due to the rapid development of high-strength steel, making long-span bridges to be increased. Nearly 40 cable-stayed bridge in the world to have been a lot of development, including the distribution of all advanced countries and developing countries.
The design for a 32 +61 +256 +61 +32 m beam cable-stayed bridge with the twin towers. Leung is a combination cable-stayed bridge for the main beam steel structure, the concrete structure of the bridge deck, the deck of the main beam and the combined force of the common cable-stayed bridge. Main beam using cantilever construction. According to other light beam cable-stayed bridge design experience and design specifications drawn up the bridge towers high 72 m, and Tajikistan on