防灾减灾工程学报2026，Vol.46Issue(3)：477-491,15.DOI:10.13409/j.cnki.jdpme.20251223002
基于足尺地震试验的木骨泥塑数值模拟方法研究
Numerical Simulation Methodology for Wooden-frame Clay Sculpture Structures Based on Full-scale Seismic Tests
摘要
Abstract
Most major cave-temple sites in China are located in seismic design zones of intensity VI or higher,where earthquakes pose a severe threat to fragile statues.The Maijishan Grottoes have histori-cally been significantly affected by strong earthquakes.To clarify the seismic response mechanisms and failure modes of timber-armature clay statues,this study selected the Rahula statue in Cave 133 of the Maijishan Grottoes as the representative object,as it has the highest scale proportion and the most typical structural characteristics.Based on three-dimensional scanning and nondestructive investiga-tion,a full-scale two-legged standing timber-armature clay sculpture model was fabricated.Shaking-ta-ble tests were conducted to simulate its response and damage characteristics under historical earth-quake actions in high-intensity seismic regions.The results showed that,although the model under-went large rocking displacements during earthquakes,it exhibited good overall seismic performance.Both acceleration and displacement were amplified by several times along the height.The overall dam-age evolution proceeded through four stages:(1)tension cracking at variable-section regions,(2)crack propagation to through-cracks,(3)splitting of the surface layer of the wooden armature,and(4)shear fracture of the armature.During loading,the natural frequency decreased progressively with structural damage,and the largest reduction occurred after the splitting of the surface layer of the wooden arma-ture.Based on the experimental data,a numerical-simulation-based evaluation methodology for tim-ber-armature clay sculptures was established,providing a theoretical basis for health diagnosis and safety assessment of such statues.关键词
石窟造像/传统工艺/结构探测/响应测试/足尺模型Key words
grotto statues/traditional craftsmanship/structural detection/response test/full-scale model分类
建筑与水利引用本文复制引用
郭青林,裴强强,赵建忠,李文俊,岳永强,Tereshchenko Olesya..基于足尺地震试验的木骨泥塑数值模拟方法研究[J].防灾减灾工程学报,2026,46(3):477-491,15.基金项目
国家自然科学基金项目(U22A20599)、甘肃省创新平台计划项目(26JDWF001)资助 （U22A20599）
