Analysis of Integrated Damage for a Masonry Pagoda Built in Song Dynasty

卢俊龙; 李凯; 李嘉怿

doi:10.13409/j.cnki.jdpme.2019.01.009

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Analysis of Integrated Damage for a Masonry Pagoda Built in Song Dynasty

更新时间：2025-12-11

- Analysis of Integrated Damage for a Masonry Pagoda Built in Song Dynasty
- Vol. 39, Issue 1, Pages: 61-66(2019)
- 作者机构：
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- DOI：10.13409/j.cnki.jdpme.2019.01.009
  CLC： U362
- Published：2019
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[1]卢俊龙,李凯,李嘉怿.某宋代砖塔结构整体损伤识别分析[J].防灾减灾工程学报,2019,39(01):61-66.

卢俊龙, 李凯, 李嘉怿. Analysis of Integrated Damage for a Masonry Pagoda Built in Song Dynasty[J]. 2019, 39(1): 61-66.
[1]卢俊龙,李凯,李嘉怿.某宋代砖塔结构整体损伤识别分析[J].防灾减灾工程学报,2019,39(01):61-66. DOI： 10.13409/j.cnki.jdpme.2019.01.009.

卢俊龙, 李凯, 李嘉怿. Analysis of Integrated Damage for a Masonry Pagoda Built in Song Dynasty[J]. 2019, 39(1): 61-66. DOI： 10.13409/j.cnki.jdpme.2019.01.009.

摘要

为研究陕西省蒲城县崇寿寺宋代古塔的动力特性及结构整体损伤

应用动态测试系统对该塔在环境激励下的振动响应进行测试

对测试结果进行时域及频域分析

得到了结构沿水平方向振动的前3阶频率、振型及阻尼比;建立崇寿寺塔的有限元模型计算结构的动力特性

通过调整计算参数

使计算结果与测试结果一致

得到了结构的宏观等效弹性模量

依据该模量通过模态刚度定义损伤判别指标

对崇寿寺塔结构损伤进行评定。结果表明

当结构楼层弹性模量随高度增加逐渐增大时

数值计算各阶频率均与测试结果接近

表明崇寿寺塔结构宏观损伤在首层较为严重。因此

通过对比古塔动力特性测试结果与数值计算结果

可实现对结构整体损伤进行评定。

Abstract

To study the dynamic characteristics and integrated damage of the Chongshousi Pagoda in Pucheng County

Shaanxi Province

the vibration response of the pagoda was tested in dynamical testing equipments excited by ground random vibration.After analysis of the test results in time and frequency domains the first three order frequencies

vibration modes

and damp ratios were obtained.A finite element model of the Chongshousi Pagoda was built to calculate its dynamical characteristics.By adjusting calculation parameters the calculation results agreed with the test results

and the macro equivalent elastic modulus was acquired.Based on the modulus a damage identification index was defined by modal stiffness

and the structure damage of the Chongshousi Pagoda was evaluated.Results showed that when the elastic modulus increased with building height

the calculation results of each frequency approximated the test results.This indicated that the macro damage of the structure was relatively severe at the first floor.Therefore

the integrated damage of masonry pagodas can be evaluated by comparing results from dynamical tests to those from numerical calculation.

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references

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