本文選題：半剛接鋼框架　切入點：高延性纖維混凝土　出處：《土木工程學(xué)報》2015年03期 　論文類型：期刊論文

【摘要】：采用高延性纖維混凝土(DFRC)改善半剛性連接鋼框架內(nèi)填RC剪力墻結(jié)構(gòu)(PSRCW)的抗震性能和變形能力,設(shè)計1榀半剛性連接鋼框架內(nèi)填DFRC剪力墻試件(SDFRCW),并進(jìn)行擬靜力試驗,研究其破壞機理、滯回性能、剛度退化、延性及耗能能力,并與已有文獻(xiàn)的試驗結(jié)果進(jìn)行比較可得:1DFRC良好的拉伸性能和應(yīng)變硬化效應(yīng),可以有效控制內(nèi)填墻體的斜裂縫穩(wěn)定發(fā)展,實現(xiàn)延性剪切破壞模式;2SDFRCW試件的開裂位移、屈服位移和極限位移明顯高于PSRCW試件,可見采用DFRC能顯著提高SDFRCW結(jié)構(gòu)的層間變形能力;3SDFRCW試件破壞時,內(nèi)填DFRC剪力墻已出現(xiàn)較寬的主斜裂縫,但墻體始終保持良好的整體性,試件承載力和剛度退化緩慢,說明采用DFRC可顯著提高墻體的耐損傷能力,減少結(jié)構(gòu)的震后修復(fù)費用;4SDFRCW結(jié)構(gòu)具有良好的層間變形能力,能有效控制結(jié)構(gòu)在小震和中震作用下的變形,滿足大震作用下的變形能力和耗能要求。
[Abstract]:Using high ductile fiber reinforced concrete (DFRC) to improve the seismic behavior and deformation capacity of RC shear wall structure with semi-rigid connection steel frame, a DFRC shear wall specimen with semi-rigid connection steel frame is designed, and the quasi-static test is carried out. The failure mechanism, hysteretic property, stiffness degradation, ductility and energy dissipation ability are studied, and the good tensile properties and strain hardening effect of 1 / 1 DFRC are obtained by comparing with the experimental results in previous literatures. It can effectively control the stable development of the inclined crack of the inner filled wall, and realize the crack displacement of the specimens under the ductile shear failure mode of 2SDF RCW. The yield displacement and the limit displacement are obviously higher than those of the PSRCW specimen. It can be seen that the interstory deformation capacity of SDFRCW structure can be improved significantly by using DFRC. When the specimen is destroyed, the wall with DFRC shear wall has a wide main slanting crack, but the wall always maintains a good integrity, and the bearing capacity and stiffness of the specimen degrade slowly. The results show that DFRC can significantly improve the damage resistance of the wall, reduce the repair cost of the structure after the earthquake and reduce the cost of repairing the structure. The structure has good interlaminar deformation ability, and it can effectively control the deformation of the structure under the action of small earthquake and moderate earthquake. To meet the deformation capacity and energy consumption requirements under the action of large earthquakes.
【作者單位】： 西安建筑科技大學(xué);徐州中煤鋼結(jié)構(gòu)建設(shè)有限公司;
【基金】：國家自然科學(xué)基金(50908187,51278402) 陜西省自然科學(xué)基金(2013JM7013) 西安建筑科技大學(xué)創(chuàng)新團(tuán)隊計劃項目
【分類號】：TU352.11

【參考文獻(xiàn)】

相關(guān)期刊論文 前3條

1 孫國華;顧強;何若全;申林;方有珍;;半剛接鋼框架內(nèi)填暗豎縫鋼筋混凝土剪力墻結(jié)構(gòu)滯回性能試驗研究[J];建筑結(jié)構(gòu)學(xué)報;2010年09期

2 蘇駿;徐世p，

本文編號：1646421