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| Received:October 13, 2014 Revised:May 12, 2015 |
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| DOI：10.7511/jslx201602013 |
| KeyWord:PR steel frame infill walls concealed vertical slit hysteretic behavior inclined strut |
| Author | Institution |
| 孙国华 |
苏州科技大学 江苏省结构工程重点实验室, 苏州 ;河海大学 土木与交通学院, 南京 |
| 顾强 |
苏州科技大学 江苏省结构工程重点实验室, 苏州 ;河海大学 土木与交通学院, 南京 |
| 方有珍 |
苏州科技大学 江苏省结构工程重点实验室, 苏州 |
| 杨文侠 |
河海大学 土木与交通学院, 南京 ;江苏沪宁钢机股份有限公司, 宜兴 |
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| Abstract: |
| To solve numerical simulation of partially-restrained (PR) steel frame with concealed vertical slit reinforced concrete (RC) infill walls (PSRCW) in the engineering design stage,a simplified compo-site inclined strut hysteretic model was proposed based on the experimental phenomena,the cracks distribution of RC infill wall,and the transferring mechanism of PSRCW.The simplified composite inclined strut hysteretic model of concealed vertical slit RC infill wall was simulated via two parts.The main diagonal inclined strut was used to reflect the transferring lateral force by the contribution of the thickness of concealed vertical slits.The wall-column part was to simulate the mechanical behavior of slit walls.The effective width of the main diagonal inclined strut was deduced through the internal mechanism of the concealed vertical slit RC infill walls,and the cyclic restored force model of the main diagonal inclined strut was deduced based on the stress vs.strain relationship curves of concrete.In addition,the comparison between the results of calculation using the composite inclined strut hysteretic model and those of corresponding tests showed good agreement. |
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