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Cyclic load experiment study on the laminated composite RC walls with different concrete ages
Hongmei Zhang,Xilin Lu,Jianbao Li,Lin Liang 국제구조공학회 2010 Structural Engineering and Mechanics, An Int'l Jou Vol.36 No.6
12 typical laminated composite reinforced concrete (RC) walls with different concrete ages and 3 cast-in-place RC walls subjected to low frequency cyclic load were carried out in this study. The failure mode, force-deformation response and energy dissipation capacity of these specimens were investigated. Differences of structural behaviours between composite RC walls and common cast-in-place RC walls were emphasized in the analysis. The compatibility of the composite specimens with different concrete ages was discussed based on the experiment. Test results indicated that the differences between the lateral bearing capacity and the displacement ductility of the composite walls and the common walls were not so obvious. Some of the composite specimen even has higher bearing capacity under the experiment loading situation. Besides, the two parts of the laminated composite specimens demonstrates incompatibility at the later loading sequence on failure mode and strain response when it is in tension. Finally, this laminated composite shear walls are suggested to be applied in rapid reconstruction structures which is not very high.
Cyclic load experiment study on the laminated composite RC walls with different concrete ages
Zhang, Hongmei,Lua, Xilin,Li, Jianbao,Liang, Lin Techno-Press 2010 Structural Engineering and Mechanics, An Int'l Jou Vol.36 No.6
12 typical laminated composite reinforced concrete (RC) walls with different concrete ages and 3 cast-in-place RC walls subjected to low frequency cyclic load were carried out in this study. The failure mode, force-deformation response and energy dissipation capacity of these specimens were investigated. Differences of structural behaviours between composite RC walls and common cast-in-place RC walls were emphasized in the analysis. The compatibility of the composite specimens with different concrete ages was discussed based on the experiment. Test results indicated that the differences between the lateral bearing capacity and the displacement ductility of the composite walls and the common walls were not so obvious. Some of the composite specimen even has higher bearing capacity under the experiment loading situation. Besides, the two parts of the laminated composite specimens demonstrates incompatibility at the later loading sequence on failure mode and strain response when it is in tension. Finally, this laminated composite shear walls are suggested to be applied in rapid reconstruction structures which is not very high.
Zhongliang Sun,Yongming Zhang,Xiangyun Deng,Jianbao Li,Chunrong Xiong 한국공업화학회 2012 Journal of Industrial and Engineering Chemistry Vol.18 No.1
Silicalite-1 and titanium containing silicalite-1 (TS-1) hollow fibers were fabricated with polyethylene imine (PEI) fibers as substrates. The acid treated PEI fibers were positively charged and can be effectively coated with silicalite-1 or TS-1 nanocrystals from their colloidal solution. The adsorbed silicalite-1 or TS-1 nanocrystals grew up and became more compact upon two days of vapor phase Ostwald ripening in autoclave. Silicalite-1 and TS-1 hollow fibers were obtained after calcination at 400 8C in air. The shell thickness of the hollow fibers is 1 mm. Hydroxylation of phenol with H2O2 was investigated over TS-1based catalysts in order to compare influences of nanocrystals composed macrostructure and Al2O3binder on the catalytic activities.