DataSheet1_Seismic performance investigation of an innovative steel shear wall with semi-rigid beam-to-column connections.pdf

Steel plate shear walls (SPSWs) are a robust lateral load resistance structure because of their high ductility and efficient energy dissipation when subjected to seismic loads. This research investigates the seismic performance of an innovative infill web strip (IWS-SPSW) and a typical unstiffened steel plate shear wall (USPSW). As a result, two 1:3 scale specimens of an IWS-SPSW and USPSW with a single story and a single bay were built and subjected to a cyclic lateral loading methodology. In the prototype, semi-rigid end-plate connectors for the beam-to-column connections were utilized. The test result of IWS-SPSW showed outstanding ductility and shear load-bearing capacity without cracks or damage. Additionally, the IWS-SPSW exhibited strong energy dissipation without substantial beam-column connection distortion. USPSW showed excellent shear load-bearing capacity, low ductility, extensive infill plate corner tearing, and large infill web plate cracks. The FE models were developed and verified against experimental data. It has been shown that the infill web strips can affect the high performance and overall energy dissipation of an SPSW system. In addition, a parametric study was conducted to investigate the infill web strip material properties, such as steel strength and thickness, that can significantly enhance the system’s seismic performances.

钢板剪切墙（SPSWs）因其卓越的延展性和在地震荷载作用下的高效能量耗散能力，而成为一种坚固的横向荷载抵抗结构。本研究旨在探讨一种创新填充腹板条（IWS-SPSW）和一种典型的未加固钢板剪切墙（USPSW）的抗震性能。为此，构建了两个1:3比例的IWS-SPSW和USPSW单层单跨试件，并对其施加了循环横向荷载。在原型中，采用了半刚性端板连接件进行梁柱连接。IWS-SPSW的试验结果显示出卓越的延展性和剪切承载能力，且未出现裂纹或损坏。此外，IWS-SPSW表现出强大的能量耗散能力，而未导致梁柱连接发生显著变形。USPSW则展现出优良的剪切承载能力、较低的延展性、广泛的填充板角撕裂以及大量的填充腹板裂缝。建立了有限元模型，并通过实验数据进行验证。研究表明，填充腹板条可以影响SPSW系统的性能和整体能量耗散能力。此外，还进行了一项参数研究，以探讨填充腹板条的材料属性，如钢的强度和厚度，这些属性可以显著提升系统的抗震性能。