高墩压弯构件正截面承载力可视化创新验算  

Innovative Visual Verification of the Flexural Capacity of High-Pier Compression Members

作　　者：刘智敏 LIU Zhi-min(Lin Tung-Yen International ConsultingCo.,Ltd.,Nanjing 211111,China)

机构地区：[1]林同棪国际工程咨询(中国)有限公司,江苏南京211111

出　　处：《中国市政工程》2025年第2期113-118,151,152,共8页China Municipal Engineering

摘　　要：该研究聚焦于高墩大跨连续刚构桥,依据规范对偏压构件正截面承载力的计算理论,展示了基于Excel VBA平台编制的一套功能较为全面的计算小程序。相对于市场上的桥梁专业计算软件而言,先进性体现在,可以完美呈现常用截面的抗力曲线,对于矩形或I形截面还能够计算腹部钢筋对承载力的贡献,充分挖掘利用截面潜在的承载力;创新性体现在,运用“穷举法”将所有荷载组合下的效应以散点的形式投影到抗力曲线中,从而实现对所有荷载效应全方位捕捉的效果,结构安全获得更全面的保障。该方法弥补了传统专业计算软件以表格形式展现验算结果不直观的缺陷,同时在可视化验算图中可看到所有荷载效应的富余度,直接找到最不利效应点,大大提高计算效率。This study focuses on high-pier,long-span continuous rigid-frame bridges.Based on the calculation theory of the bearing capacity of eccentrically loaded members as stipulated in the standards,a comprehensive calculation program developed on the Excel VBA platform is presented.Compared with professional bridge calculation software available on the market,the program's advancement lies in its ability to perfectly display the resistance curves of commonly used sections.For rectangular or I-shaped sections,it can also calculate the contribution of web reinforcement to the bearing capacity,fully utilizing the potential bearing capacity of the section.Its innovation is reflected in the use of the Exhaustive Method to project the effects of all load combinations in the form of scatter plots onto the resistance curve,thereby achieving comprehensive capture of all load effects and providing more comprehensive structural safety assurance.This method compensates for the deficiency of traditional professional calculation software,which presents verification results in tabular form and is not intuitive.In the visual verification diagram,the surplus of all load effects can be seen,and the most unfavorable effect point can be directly identified,significantly improving calculation efficiency.

关 键 词：高墩 连续刚构 偏压构件 正截面承载力 抗力曲线 可视化验算 

分 类 号：TU375[建筑科学—结构工程]