- 摘 要
-
王洪林， 柳炳康， 黃慎江， 吳 陽， 陳麗華
（合肥工業(yè)大學(xué)土木與水利工程學(xué)院，合肥230009）[摘要] 通過對一榀兩層兩跨預(yù)壓裝配式混凝土框架在低周反復(fù)荷載作用下的試驗，研究了預(yù)壓裝配式混凝土框架的承載能力、破壞形態(tài)、滯回性能、變形恢復(fù)能力、位移延性及耗能能力等抗震性能。試驗研究表明：加載過程中，框架梁端首先出現(xiàn)塑性鉸，預(yù)壓裝配式框架屬“強(qiáng)柱弱梁”型結(jié)構(gòu)。框架荷載一位移滯回曲線較為豐滿，具有良好的耗能能力和較強(qiáng)的變形恢復(fù)能力，實測的框架各層位移延性系數(shù)在3.67~4.44之間，預(yù)壓裝配式混凝土框架具有良好的延性性能。
[關(guān)鍵詞] 預(yù)壓裝配式框架；低周反復(fù)荷載；耗能能力；延性；抗震性能
中圖分類號：TU375.4,TU756 文獻(xiàn)標(biāo)識碼：A 文章編號：1002-848X(2011) S2-0145-05Experimental study of seismic performance of two floor double-span prestressed fabricated concrete frame
Wang Honglin, Liu Bingkang, Huang Shenjiang, Wu Yang, Chen Lihua
( School of Civil Engineering, Hefei University of Technology, Hefei 230009, Cluna)Abstract: Based on the low-reversed cyclic loading experimental study of a specimen of two floor double-span prestressed fabricated concrete frame, the seismic performance such as bearing capacity, failure mode, hysteretic behavior, deformation recovery capacity, ductility, energy dissipation capacity, etc were researched. The experiment indicated that the plastic lunge firstly appeared at the end of the beams in the loading process and the prestressed fabricated concrete frame is a kind of 'strong column weak beam' structure. The load-displacement hysteretic curve is full and shows excellent energy dissipation and deformation recovery capacity. The ductility coefficient based on the experiment result is between 3. 67 and 4.44; the prestressed fabricated concrete frame shows excellent ductility.
Keywords: prestressed fabricated frame; low-cyclic reversed loading; energy dissipation; ductility; seismic performance
