工程科学与技术2025，Vol.57Issue(5)：24-37,14.DOI:10.12454/j.jsuese.202400864
轻型装配式重组竹墙板抗震性能试验和数值研究
Seismic Performance Testing and Numerical Study of Lightweight Prefabricated Reconstituted Bamboo Wall Panels
摘要
Abstract
This study introduces a lightweight prefabricated wall panel made from reconstituted bamboo,which leverages the material's high strength-to-weight ratio along with its sustainability,low carbon footprint,and energy efficiency.The panel features a convenient and reliable connection system,making it well-suited for prefabricated construction.Six wall panel configurations were designed and fabricated to evaluate their seismic performance.The investigation examines the influence of several variables(including vertical joint configuration,the number of bolts in vertical joints,presence of holes,and surface panel thickness)on failure modes,shear strength,ultimate and yield displacements,yield load,and energy dissipation capacity.Ex-perimental results reveal that using two bolts in the vertical joints reduces unit shear strength by approximately 10%compared to configurations with four bolts.Increasing the number of bolts effectively limits inter-panel slip,reduces local stress concentrations,enhances structural stiffness and shear ca-pacity,and improves connection strength.Panels with 20 mm thick surface layers show 18.8%greater unit energy dissipation than those with 10 mm thickness,demonstrating superior plastic deformation capacity.This increased deformability allows the panels to absorb more energy without failure and delays self-tapping screw failure,thereby enhancing the panel's overall energy dissipation performance.Digital image correlation(DIC)technology was employed to analyze surface damage progression,offering valuable insights into the damage evolution of the surface panel.Results indicate that increas-ing surface panel thickness markedly improves damage resistance,restricts crack propagation,and enhances the structural stability and safety of the panel system.Additionally,a parametric study using ABAQUS was conducted to assess the effects of edge nail spacing and the number of cross braces on seismic behavior.Finite element analysis shows that edge nail spacing significantly influences the load-bearing capacity,while the number of cross braces primarily affects displacement behavior.关键词
重组竹墙板/抗震性能/DIC/有限元分析Key words
bamboo scrimber wall panel/seismic performance/DIC/finite element analysis分类
建筑与水利引用本文复制引用
刘烨,王家康,赵仕兴,熊峰,余弦,杨姝姮,周巧玲,郑万林..轻型装配式重组竹墙板抗震性能试验和数值研究[J].工程科学与技术,2025,57(5):24-37,14.基金项目
四川省科技计划项目(2023YFS0393) （2023YFS0393）
