884aa四虎影成人精品,99久久国产综合精品女图图等你,97在线观看永久免费视频,久久精品国产精品亚洲38,ⅵdeodesetv性欧美

(1 鄭州大學(xué)土木工程學(xué)院， 鄭州 450000； 2 鄭州大學(xué)綜合設(shè)計(jì)研究院， 鄭州 450000)

［摘要］設(shè)計(jì)了一種內(nèi)嵌式墻板柔性連接方式，對(duì)在這種柔性連接下的6塊全輕頁(yè)巖陶粒預(yù)制墻板進(jìn)行了抗彎承載力試驗(yàn)研究，主要研究參數(shù)為框架梁與預(yù)制墻板連接節(jié)點(diǎn)的位置、個(gè)數(shù)和墻板開窗洞情況。對(duì)墻板的荷載撓度曲線、荷載-應(yīng)變曲線和極限承載力進(jìn)行了系統(tǒng)分析。結(jié)果表明：設(shè)計(jì)的柔性連接滿足墻板承載力要求；墻板連接節(jié)點(diǎn)的位置和個(gè)數(shù)對(duì)墻板開裂荷載、撓度、極限抗彎承載力和破壞狀態(tài)影響顯著；開窗洞墻板由于配筋加密，剛度增強(qiáng)，削弱了開洞對(duì)墻板承載的不利影響。各墻板在正常使用極限荷載下均未破壞，撓度滿足規(guī)范要求。

［關(guān)鍵詞］全輕骨料混凝土； 預(yù)制墻板； 受彎性能； 柔性連接

中圖分類號(hào)：TU375-2， TU528-2文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)21-0099-05

Experimental study on flexural performance of full lightweight aggregate concrete prefabricated wallboard under flexible connection

Chen Meng1, Li Xuejia1, Yu Qiubo1,2, Zhong Xiangwei1

(1 School of Civil Engineering, Zhengzhou University, Zhengzhou 450000, China; 2  Zhengzhou University Multi-functional Design and Research Academy Co., Ltd., Zhengzhou 450000, China)

Abstract:A flexible connection method of embedded wallboard was designed. The flexural bearing capacity of six full lightweight shale ceramsite prefabricated wallboard under this flexible connection was tested. The main parameters are the location and number of joints between frame beam and prefabricated wallboard and the openings of window in wallboard. The load-deflection curve, load-strain curve and ultimate bearing capacity of wallboard were systematically analyzed. The results show that the designed flexible connection meets the requirements of the bearing capacity of wallboard; the location and number of the joints of wallboard connections have significant effects on the cracking load, deflection, ultimate flexural bearing capacity and failure state of wallboard; because the reinforcement is dense and the stiffness is strengthened, the adverse effect of the opening of window on the bearing capacity of the wallboard is weakened. All wallboards are not destroyed under the normal ultimate load, and the deflection meets the requirements of the code.

Keywords:full lightweight aggregate concrete; prefabricated wallboard; flexural performance; flexible connection

*2017年河南省墻改基金。

作者簡(jiǎn)介：陳萌，博士，教授，碩士生導(dǎo)師，Email：cmnlx@zzu.edu.cn。