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首页> 外文会议>Innovation, practice, safety >RESULTS OF 'PSEUDO-STATIC' TESTS WITH CYCLIC HORIZONTAL LOAD ON R.C. PANELS MADE WITH WOOD-CONCRETE CAISSON BLOCKS
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RESULTS OF 'PSEUDO-STATIC' TESTS WITH CYCLIC HORIZONTAL LOAD ON R.C. PANELS MADE WITH WOOD-CONCRETE CAISSON BLOCKS

机译：循环水平荷载作用下RC的“伪静态”测试结果木制沉箱块制成的面板

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摘要

In recent years, the seismic behaviour of reinforced concrete bearing panels structures has been the object of several research works. This paper presents a summary of the results obtained in a wide experimental/analytical in Pavia. This effort was devoted at the assessment of the seismic performances of lightly reinforced concrete bearing panels. The panels are made using leave in place wood-concrete caisson blocks. In order to obtain a correct characterization of seismic behavior (stiffness, strength, ductility) of such panels, a number of tests were performed both upon two dimensional (3.0 m by 3.0 m) panels and upon 6 meter tall H shaped substructure. In the experimental tests a number of horizontal loading cycles were imposed to the structures, while the vertical load was kept constant The results obtained show a good agreement between the experimental data and their analytical counterparts. Also a high (cinematic) ductile behavior of the panel was observed, with vertical rebars loaded up to yielding (it was never observed a failure in shear). The maximum horizontal load loads applied to the structural systems were found to be always comparable in magnitude (and often wide superior) to the applied vertical loads. All systems tested showed a residual bearing capacity w.r.t. the vertical loads, also when large lateral deformations were developed and the lateral stiffness had undergone substantial reductions. In all test the panels were capable to sustain repeated cycles at maximum deformation.
机译：近年来，钢筋混凝土承压板结构的抗震性能已成为若干研究工作的对象。本文总结了在Pavia进行的广泛实验/分析中获得的结果。这项工作专门用于评估轻质钢筋混凝土承重板的抗震性能。面板是用原木沉箱砌成的。为了获得此类面板的地震行为（刚度，强度，延展性）的正确表征，在二维（3.0 m x 3.0 m）面板和6米高的H形子结构上都进行了许多测试。在实验测试中，对结构施加了多个水平荷载循环，而垂直荷载保持恒定。获得的结果表明，实验数据与其分析对应物之间有很好的一致性。还观察到板的高（力学上）延展性，垂直钢筋加载直至屈服（从未观察到剪切破坏）。发现施加在结构系统上的最大水平载荷在大小上始终可以与所施加的垂直载荷相媲美（并且通常宽得多）。所有测试的系统均显示出残余承载力w.r.t.竖向载荷，也包括大的侧向变形发生且侧向刚度已大大降低时。在所有测试中，面板均能够在最大变形下承受重复的循环。

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