Constraint-Equivalent-Based Natural Frequency Solutions and Crack Damage Identification for Back-Bolted Stone Curtain Walls

YANG Huangtao; ZHU Yuanchen; CONG Haonan; WANG Jianmin

doi:10.3724/j.gyjzG24083103

Volume 55 Issue 7

Jul. 2025

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YANG Huangtao, ZHU Yuanchen, CONG Haonan, WANG Jianmin. Constraint-Equivalent-Based Natural Frequency Solutions and Crack Damage Identification for Back-Bolted Stone Curtain Walls[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(7): 30-38. doi: 10.3724/j.gyjzG24083103

Citation:

YANG Huangtao, ZHU Yuanchen, CONG Haonan, WANG Jianmin. Constraint-Equivalent-Based Natural Frequency Solutions and Crack Damage Identification for Back-Bolted Stone Curtain Walls[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(7): 30-38. doi: 10.3724/j.gyjzG24083103

Citation:

YANG Huangtao, ZHU Yuanchen, CONG Haonan, WANG Jianmin. Constraint-Equivalent-Based Natural Frequency Solutions and Crack Damage Identification for Back-Bolted Stone Curtain Walls[J]. INDUSTRIAL CONSTRUCTION, 2025, 55(7): 30-38. doi: 10.3724/j.gyjzG24083103

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Constraint-Equivalent-Based Natural Frequency Solutions and Crack Damage Identification for Back-Bolted Stone Curtain Walls

doi: 10.3724/j.gyjzG24083103

1. School of Civil and Environmental Engineering and Geography Science, Ningbo University, Ningbo 315211, China;
2. Zhejiang Engineering Research Center for the Safety of Pressure Vessel and Pipeline, Ningbo 315211, China

Received Date: 2024-08-31
Available Online: 2025-09-12

Abstract

Abstract

Given the structural complexity of back-bolted stone curtain wall panels — with four cantilevered edges and four-point localized back-anchor constraints — no theoretical natural frequency solution is available to validate numerical simulations or guide experimental test analysis. Considering the actual constraint characteristics of back-bolted stone curtain wall panels， the actual constraint was first simplified as linear constrains along one panel direction， then modeled as a simply-supported beam with overhanging ends， and finally solved for natural frequencies using continuous system vibration theory to obtain the theoretical solution for a double-overhang beam. The modal test results for the back-bolted stone curtain wall panel showed that the experimental frequencies closely matched the theoretical solutions， which were further verified by numerical simulations. In the case where a crack was present inside the panel， the corresponding natural frequencies of the simplified model for the back-bolted stone curtain wall panel were also validated to match well with the theoretical solution for the cracked panel as a whole. The theoretical natural frequencies obtained for the back-bolted stone curtain wall panels （including those with partial cracks） can be used to varify the numerical simulation and experimental test results.
- back-bolted stone curtain wall,
- natural frequency,
- theoretical solution,
- numerical simulation,
- rectangular thin plate

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References(21)

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