砼连续箱梁人行天桥振动特性测试与分析

张冠华;葛耀君

振动与冲击 ›› 2009, Vol. 28 ›› Issue (2) : 102-106.

PDF(2012 KB)
PDF(2012 KB)
振动与冲击 ›› 2009, Vol. 28 ›› Issue (2) : 102-106.
论文

砼连续箱梁人行天桥振动特性测试与分析

  • 张冠华1,2、葛耀君1
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VIBRATION CHARACTERISTICS TEST AND ANALYSIS OF CONCRETE BOX GIRDER CONTINUOUS PEDESTRIAN BRIDGE

  • ZHANG Guan-hua1,2,GE Yao-jun1
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摘要

以某座普通钢筋砼连续箱梁人行天桥为工程背景,通过对其振动特性进行大量实测试验,利用有限元理论对结构整体进行计算,深入分析其大幅度竖向、侧向振动的成因,结合实测数据探讨现行人行桥振动舒适度评价方法所存在的不足之处,评价天桥的舒适程度,为该桥的质量检测与评价提供依据,并提出了人行天桥振动舒适性评价建议。这为今后对该类桥梁的设计、维修加固具有实际参考价值。

Abstract

Based on the reinforced concrete box girder continuous pedestrian bridge, through vibration characteristics test and in-depth analysis of its significant vertical and lateral vibration with the finite element theory considering to the structure as a whole, according to the results with field test and calculation. The inadequacy of the existing evaluation methods of pedestrian bridge was provided, the comfort and quality of the bridge were evaluated, and suggestions on how to evaluate the footbridge comfort were put forward. The practical referential value and effects for the design and maintenance of this type of bridge are predicted.

关键词

人行天桥 / 固有频率 / 人致振动 / 振动测试 / 共振

Key words

pedestrian bridge / natural frequency / human-induced vibration / vibration testing / resonance

引用本文

导出引用
张冠华;葛耀君. 砼连续箱梁人行天桥振动特性测试与分析[J]. 振动与冲击, 2009, 28(2): 102-106
ZHANG Guan-hua;GE Yao-jun. VIBRATION CHARACTERISTICS TEST AND ANALYSIS OF CONCRETE BOX GIRDER CONTINUOUS PEDESTRIAN BRIDGE[J]. Journal of Vibration and Shock, 2009, 28(2): 102-106
中图分类号: U441.3   

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