- 摘 要
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( 1)哈爾濱工業(yè)大學土木工程學院,150090；2)浙江精工鋼結(jié)構(gòu)公司,紹興,312030； 3)佳木斯前隆彩板工程有限公司,154000)
【提要】 被廣泛使用的壓型鋼板具有受力蒙皮效應,但由于在我國沒有專門的規(guī)范可循,所以只被用作結(jié)構(gòu)的剛度儲備,造成了經(jīng)濟上的浪費。為了研究其剛度貢獻,分別在有蒙皮和無蒙皮兩種情況下對框架抗側(cè)移剛度進行了現(xiàn)場試驗?；诏B加原理,利用曲線擬合方法對試驗數(shù)據(jù)進行了量化,間接得到跨越多檁條的受力蒙皮的抗剪剛度。結(jié)果表明,兩榀剛架間蒙皮對框架整體剛度的貢獻甚至接近于一榀剛架。
【關鍵詞】 輕型鋼結(jié)構(gòu) 維護結(jié)構(gòu) 受力蒙皮 現(xiàn)場試驗 剛度 曲線擬合 壓型鋼板Field Test Study on the Shear Behavior of Stressed Skin Diaphragm Spanning Several Purlins/Wang Ying1,Zhang Yaochun1,Zhang Wenyuan1, Chen Guodong2,Deng Wei3(1 School of Civil Engineering,Harbin Institute of Technology, Harbin 150090,China; 2 Zhejiang Jinggong Steel Construction Co.,Ltd., Shaoxing 312030,China; 3 Jiamusi Qianlong Color Plate Co.,Ltd., Jianmusi 154000,China)Abstract:Although profiled steel sheets have the diaphragm effect in steel structure,since there is no specific code to follow in China,it is only used as the reservation of the structural stiffness.So it results in economic wastes.In order to investigate the contribution of stressed skin to the overall stiffness,field tests are carried out to measure the lateral stiffness of the frames with and without stressed skin diaphgram.Based on the superposition principle and using the curve fitting method,the test results are quantified.The shear rigidity of stressed skin diaphgram spanning several purlins is gained indirectly.It shows that the shear rigidity of the diaphragm between two frames is even close to the lateral stiffness of one frame.
Keywords:field tests；stressed skin；stiffness；curve fitting;profiled steel sheet
