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桥梁结构挠度理论分析和健康监测研究 被引量:25

THEORETICAL ANALYSIS AND HEALTH MONITORING OF BRIDGE STRUCTURE DEFLECTION
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摘要 从理论角度和实测角度分析桥梁结构的挠度监测技术,根据二孔连续梁的挠度变形得出较简单实用的挠度曲线方程;全站仪挠度观测的试测精度比传统挠度测量精度高,在测量的距离较大的情况下,安置规牌是减小瞄准误差的有效手段;在大跨度桥梁健康检测中,对称加载时桥梁结构的挠度变形值在跨中最大,实测挠度在最不利荷载作用时小于理论计算结果,其他位置基本相似。 This paper analyzes the deflection monitoring technology of bridge structure from the angle of theory and actual angle,analysis results are:according to the two hole deflection the continuous deformation of the beam deflection curve equation is relatively simple and practical;the total station distance measurement accuracy,total station deflection observation test precision vernier caliper to measure the value of high precision in measurement,the distance is large,is the effective way to reduce brand placement rules aiming error;in longspan bridge health in the detection,symmetric loading,the maximum deformation of bridge structure deflection at midspan,the most unfavorable loading method,the measured deflection to Less than the results of theoretical calculations,other locations are basically similar:
作者 邓海
出处 《建筑技术》 北大核心 2016年第11期-,共3页 Architecture Technology
关键词 桥梁结构 扰度 理论分析 健康监测 bridge structure immunity theoretical analysis health monitoring
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