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(1 湖南大學(xué)土木工程學(xué)院，  長沙  410082； 2 貴州大學(xué)空間結(jié)構(gòu)研究中心， 貴陽  550003；3 湘潭大學(xué)土木工程與力學(xué)學(xué)院， 湘潭 411105)

［摘要］正交斜放鋼網(wǎng)格空腹夾層板樓蓋適合于平面尺寸長跨比大于1-5的多層大跨度公共與工業(yè)建筑。對(duì)該新型樓蓋結(jié)構(gòu)實(shí)際工程進(jìn)行了靜載試驗(yàn)，研究了正交斜放鋼網(wǎng)格空腹夾層板上、下肋和剪力鍵受力特征及樓蓋的變形規(guī)律，結(jié)果表明該新型樓蓋結(jié)構(gòu)整體性較好，具有良好的三維空間受力性能。采用SAP2000有限元軟件建立工程結(jié)構(gòu)整體模型進(jìn)行數(shù)值模擬，發(fā)現(xiàn)撓度和應(yīng)力試驗(yàn)實(shí)測(cè)值與SAP2000有限元軟件理論計(jì)算值基本接近，且變化分布規(guī)律一致。

［關(guān)鍵詞］正交斜放； 空腹夾層板； 鋼網(wǎng)格； 靜載試驗(yàn)

中圖分類號(hào)：TU398-7文獻(xiàn)標(biāo)識(shí)碼：A文章編號(hào)：1002-848X(2019)04-0007-06

Static load test of open-web sandwich plate floor with orthogonal-diagonal arranged steel grid

Tan Zhongkun1, Ma Kejian1,2, Gan Daoping3, Wang Chequan1

(1 College of Civil Engineering, Hunan University, Changsha 410082, China; 2 Space Structure Research Center, Guizhou University, Guiyang 550003, China; 3 College of Civil Engineering and Mechanics, Xiangtang University, Xiangtang 411105, China)

Abstract:The open-web sandwich plate floor with orthogonal-diagonal arranged steel grid was suitable for multi-story and large-span public and industrial buildings with plane dimension ratio greater than 1-5. The static load test of the new floor structure was carried out. The mechanical characteristics of the higher and lower rib  and the shear keys and the deformation law of the floor were studied. The results show that the new floor structure has good integrity and good three-dimensional mechanical performance. By using SAP2000 finite element software, the whole model of engineering structure was established and simulated. It is found that the measured values of deflection and stress test are basically close to the calculated values of finite software theoretical calculation, and the variation distribution laws are consistent.

Keywords:orthogonal-diagonal arrangement; open-web sandwich plate; steel grid; static load test