本文選題：型鋼混凝土　切入點(diǎn)：異型邊節(jié)點(diǎn)　出處：《西安建筑科技大學(xué)學(xué)報(bào)(自然科學(xué)版)》2016年05期 　論文類型：期刊論文

【摘要】：由于生產(chǎn)工藝要求,大型電廠主廠房不可避免出現(xiàn)型鋼混凝土變柱截面異型邊節(jié)點(diǎn),為研究其抗震性能,選取3個(gè)具有代表性的SRC變柱截面異型邊節(jié)點(diǎn)和1個(gè)柱截面無(wú)變化的常規(guī)節(jié)點(diǎn)進(jìn)行擬靜力試驗(yàn),研究了SRC異型邊節(jié)點(diǎn)的破壞形態(tài)、滯回特性、承載力、延性、耗能和剛度退化性能.研究結(jié)果表明:型鋼混凝土異型邊節(jié)點(diǎn)破壞過(guò)程和常規(guī)節(jié)點(diǎn)類似,破壞形式為"小核心區(qū)"剪切破壞;SRC變柱截面異型邊節(jié)點(diǎn)的承載力、延性、耗能及剛度較常規(guī)節(jié)點(diǎn)小;梁截面高度的增加能夠一定程度提高SRC異型邊節(jié)點(diǎn)的承載力、延性、耗能及剛度;SRC柱-RC梁異型邊節(jié)點(diǎn)抗震性能較差;軸壓比對(duì)異型邊節(jié)點(diǎn)延性性能影響較大,增加軸壓比對(duì)試件延性不利.
[Abstract]:Due to the requirements of the production process, it is inevitable that special-shaped side joints will appear in the main building of large power plants with steel reinforced concrete (SRC) variable column cross-section, in order to study its seismic performance, Three typical irregular side joints with SRC variable column section and one normal joint with no change in column section were selected for quasi-static test. The failure mode, hysteretic characteristics, bearing capacity and ductility of SRC irregular side joints were studied. Energy dissipation and stiffness degradation. The results show that the failure process of SRC special-shaped side joints is similar to that of conventional joints, and the failure form is "small core zone" shear failure, bearing capacity and ductility of SRC irregular side joints with variable column section. The energy dissipation and stiffness are smaller than those of conventional joints, and the increase of beam cross-section height can improve the bearing capacity, ductility, energy dissipation and stiffness of SRC special-shaped side joints to some extent. Axial compression ratio has a great effect on ductility of irregular side joints, and increasing axial compression ratio is unfavorable to the ductility of specimens.
【作者單位】： 西安建筑科技大學(xué)土木工程學(xué)院;
【基金】：國(guó)家自然科學(xué)基金項(xiàng)目(51478381)
【分類號(hào)】：TU398.9;TU352.11

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