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                  鋼筋混凝土分體柱框架整體抗震性能的模型試驗外文文獻翻譯

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                  鋼筋混凝土分體柱框架整體抗震性能的模型試驗外文文獻翻譯(4800字)
                  摘要
                  基于一系列的早先研究,低周反復荷載作用下,在一個較低的二個層帶有分體柱的三層兩跨鋼筋混凝土框架整體模型(1/3比例)上做抗震性能實驗。在較低的二層模型框架先用短柱,然后用分體柱代替。在模型框架頂層的側位移和低周反復水平荷載之間的滯后曲線指出,在低周反復荷載作用之下,模型框架在極限荷載作用下在未破壞情況下經歷一個開裂、屈服和最大載重的過程。他們也指出,模型框架有較好的延展性,并且極限位移和屈服位移的比值達到了6.0。模型框架屈服過程對于分體柱框架來說, 當框架仍然持有承載變形的能力時,梁端的塑性鉸先屈服,然后柱子才開始屈服。直接在鋼筋混凝土框架中把短柱變為長柱的設計理論,是用分體柱更換短柱的實驗成果。

                  關鍵詞  鋼筋混凝土框架;抗震性能;分體柱;短柱;模型試驗。

                  Model Experiment on Integral Seismic Behavior of Reinforced Concrete Frame with Split Columns
                  ABSTRACT
                  Based on a series of previous studies,an experiment on the integral seismic behavior of a 1/3 scaled model of two-bay and three-story reinforced concrete frame with split columns at lower two stories is performed under cyclic loading.The original columns at lower two stories of the model frame are short columns and they are replaced by the split columns.The hysteresis curves between the horizontal cyclic load and the lateral displacement at the top of the model frame.indicate that under the cyclic loading,the model frame undergoes the process of cracking,yielding.and maximum loading before being destroyed at the ultimate load。 They also indicate that the model frame has better ductility.and the ratio of the ultimate displacement to the yielding displacement,reaches 6。0.The yielding process of the model frame shows that for the frame with split columns,plastic hinges are generated at the ends of beams and then the columns begin yielding while the frame still possesses the bearing and deformation capacity。 The design idea of directly changing the short column to long one in the reinforced concrete frame may be realized by replacing the short column with the split one.。

                  Keywords  reinforced concrete frame:seismic behavior:split column :short column:model experiment。

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