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| The Axial Punching Properties of Postgrouting Concrete Filled Steel Tube |
| WANG Meihua |
| (College of Civil Engineering, Tongji University, Shanghai 200092, China;Shanghai No.7 Construction Co. Ltd, Shanghai 200050, China) |
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Abstract Postgrouting concrete filled steel tube is ordinary technology in vertical bearing structures. Based on the experiment, this paper evaluated the mechanics performance of axial punching of postgrouting concrete filled steel tube and summarized the various methods’ influences on the axial punching. By using experimental data and inverse analysis method, the related parameters for interface properties were obtained. This paper summed up the deformation characteristics of the postgrouting connection between the original concrete columns and steel tube connection under the action of axial punching. Based on the experiment and numerical method, the postgrouting connection method of interface was proposed, which provides a reference for future related projects.
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Received: 25 December 2009
Published: 30 June 2010
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