空间刚性缆索自锚式悬索桥结构体系研究  

Research on the Structural System of Space Rigid Cable Self-anchored Suspension Bridge

作　　者：戚瑞琨 QI Rui-kun(Shanghai Institute of Building Science Group Co.,Ltd.,Shanghai 200092,China)

机构地区：[1]上海市建筑科学研究院集团有限公司,上海200092

出　　处：《价值工程》2024年第14期149-151,共3页Value Engineering

摘　　要：跨河或上跨快速路的人行桥由于景观及净空的要求,梁高较小,但此种桥梁的跨径通常较大,这就造成了桥梁高跨比过小,刚度不足,振动问题突出。本文以一座实际悬索桥为例,从结构方案设计出发,针对空间缆索刚性悬索桥进行结构体系分析,研究结果表明:空间刚性缆索悬索桥的结构振型自振频率具有显著特性,需要针对性地进行结构构造设置。Pedestrian bridges that cross rivers or over expressways have smaller beam heights due to landscape and clearance requirements,but the span of such bridges is usually larger,resulting in a small height to span ratio,insufficient stiffness,and prominent vibration problems.This article takes an actual suspension bridge as an example,starting from the design of the structural scheme,and analyzes the structural system of a space cable rigid suspension bridge.The research results show that the structural vibration mode and natural frequency of the space rigid cable suspension bridge have significant characteristics,and targeted structural construction settings are needed.

关 键 词：悬索桥 空间缆索 刚性缆 结构体系 

分 类 号：U448.25[建筑科学—桥梁与隧道工程]