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<p>In this study, ten novel Cable-Pipe Damper Bracing (CPDB) systems are introduced for seismic applications in steel building frames. The CPDBs consist of high-strength steel cables wrapped around steel pipes, ensuring no cable slacking during lateral movements. Energy dissipation is achieved through friction at contact surfaces, yielding of cable materials, and plastic deformation of pipes. The seismic performance of these systems is evaluated using nonlinear finite element analyses under monotonic and cyclic loading conditions. An extensive parametric study examines the effects of various factors, such as cable pre-tension, friction coefficients, and cable wrappings, on the system’s behavior. This research introduces a cost-effective, lightweight bracing system that enhances seismic energy dissipation while addressing common limitations of traditional cable braces, such as low ductility and slacking. The results highlight the potential of CPDB systems to improve structural resilience and offer practical benefits for both new constructions and retrofitting applications.</p>

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Numerical and parametric investigation of novel cable-pipe damper bracing systems

  • 期刊论文

  • 发表日期：

    2025年6月24日

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  • Shervin Maleki,
  • Mobin Eftekhari

摘要

In this study, ten novel Cable-Pipe Damper Bracing (CPDB) systems are introduced for seismic applications in steel building frames. The CPDBs consist of high-strength steel cables wrapped around steel pipes, ensuring no cable slacking during lateral movements. Energy dissipation is achieved through friction at contact surfaces, yielding of cable materials, and plastic deformation of pipes. The seismic performance of these systems is evaluated using nonlinear finite element analyses under monotonic and cyclic loading conditions. An extensive parametric study examines the effects of various factors, such as cable pre-tension, friction coefficients, and cable wrappings, on the system’s behavior. This research introduces a cost-effective, lightweight bracing system that enhances seismic energy dissipation while addressing common limitations of traditional cable braces, such as low ductility and slacking. The results highlight the potential of CPDB systems to improve structural resilience and offer practical benefits for both new constructions and retrofitting applications.