吉首大学学报（自然科学版）2022，Vol.43Issue(6)：32-37,6.DOI:10.13438/j.cnki.jdzk.2022.06.007
高墩桥横断面在复杂工况下的力学特性
Mechanical Properties of Cross-Sections of High-Pier Bridges in Complex Working Conditions
摘要
Abstract
Based on the actual project of Luohe Bridge,the Midas Civil software was used to establish a model of the high-pier bridge under the design load,and the mechanical properties of the two types of cross-sectional high-pier continuous steel-concrete frame bridge were analyzed under different load com-binations.In working conditions 1 and 3,the bearing capacity of type A cross-section is higher than that of type B structure,and the maximum axial stress is reduced by 28.54％and 27.88％respectively.In working condition 3,the maximum deflections of A-type and B-type high pier bridges are 3.953 mm and 3.643 mm respectively.The deflection of an A-type bridge is 7.84％lower than that of a B-type bridge.The structural stiffness of A-type high pier bridge is improved and the structural deformation is reduced.In all kinds of working conditions,the stress of a high pier bridge meets the strength requirements.关键词
高墩桥/力学特性/预应力混凝土/数值分析Key words
high-pier bridge/mechanical properties/prestressed concrete/numerical analysis分类
建筑与水利引用本文复制引用
王建省,张钊巍,刘戈,张子恒,于志涵..高墩桥横断面在复杂工况下的力学特性[J].吉首大学学报（自然科学版）,2022,43(6):32-37,6.基金项目
National Natural Science Foundation of China(11572001,51478004) （11572001,51478004）
Education and Teaching Re-form Project of North China University of Technology(2022XN009/026) （2022XN009/026）
2022 Beijing College Students Innovation and Entrepreneurship Project(108051360022XN388) （108051360022XN388）
