农村新型复合材料加固下的墙体地震易损性研究
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南昌大学科学技术学院

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江西省教育厅科学技术研究项目:基于BIM的工程造价精细化管理体系运用策略分析(项目编号:GJJ2203920)


Research on the Seismic Vulnerability of Walls Reinforced with New Rural Composite Materials
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Nanchang University College of Science and Technology

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    摘要:

    在农村建筑砖砌体结构中,墙体与构造柱、圈梁等节点的连接常因施工工艺不足而存在薄弱环节。当地震动以不同方向比例作用时,这些节点易成为结构破坏的初始点,导致整体稳定性下降。为此,本研究聚焦农村房屋砖砌体结构,在确定基础参数后,采用新型复合材料碳纤维增强聚合物(CFRP)进行加固处理,旨在提升其抗震性能。研究过程中,利用ABAQUS有限元软件构建了农村典型砖砌体建筑模型,并输入四种不同峰值加速度(PGA)的地震波进行模拟分析。通过DYNAMO软件,实现了不同工况地震作用下结构倒塌预警的可视化呈现。结果表明,随着地震波能量的减弱,CFRP加固砖砌体的最大应力呈现递减趋势,这表明复合材料有效吸收了地震能量,显著增强了墙体抗震能力,从而降低了农村建筑在地震作用下的易损性。

    Abstract:

    In rural brick masonry structures, the connections between walls and structural elements such as tie columns and ring beams are often insufficiently robust. Under seismic ground motions with varying directional ratios, these connections tend to become weak points, leading to overall structural failure. To address this issue, this study focuses on rural brick masonry structures, determines their foundational parameters, and employs a novel composite material, CFRP (Carbon Fiber Reinforced Polymer), for reinforcement to enhance their seismic resilience. Using the ABAQUS finite element software, a brick masonry structure commonly used in rural housing construction is modeled, and four types of seismic waves with different peak ground accelerations (PGA) are input. The DYNAMO software is utilized to achieve visual collapse warnings for the brick masonry structure under various seismic conditions in rural buildings. The results indicate that as the energy of the seismic waves decreases, the maximum stress in the CFRP-reinforced brick masonry gradually diminishes, demonstrating its effectiveness in absorbing seismic energy. This significantly enhances the seismic performance of the walls and reduces the vulnerability of rural walls under seismic action.

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  • 收稿日期:2025-05-12
  • 最后修改日期:2025-12-02
  • 录用日期:2025-12-17
  • 在线发布日期: 2026-07-31
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