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RISExperimental Study of the Postfire Mechanical Properties of Grade 14.9 Superhigh-Tension Bolt
Publisher: ASCE
Abstract: Fire hazard has been one of the most critical factors to threaten the safety of steel structures. Steel structures may not collapse when suffering fire and cooling down, but the serviceability of building after the fire ...
Experimental and Theoretical Studies of Hexagonal UHPC-Filled Double-Skin Steel Tubular Columns under Combined Compression and Bending
Publisher: American Society of Civil Engineers
Abstract: In this study, the authors conducted five low-cycle reciprocating loading tests on hexagonal ultrahigh-performance concrete (UHPC)-filled steel tubular (UHPCFST) and UHPC-filled double-skin steel tubular (UHPCFDST) columns. ...
Axial Compressive Behavior of Thin-Walled Concrete-Filled Double-Skin Steel Tubular Stub Columns with Connecting Strips
Publisher: ASCE
Abstract: Concrete-filled double-skin tubular (CFDST) columns have high fire resistance, and are widely used in the construction of electrical towers and bridges. However, previous research showed that the buckling of steel tubes ...
Mechanical Performance of Circular Ultrahigh-Performance Concrete–Filled Double Skin High-Strength Steel Tubular Stub Columns under Axial Compression
Publisher: ASCE
Abstract: This paper proposed a new type of stiffened circular ultra-high performance concrete-filled double skin steel tubular (UHPCFDST) column, in which stiffeners were applied to connect both inner and outer steel tubes. It ...
Experimental Study on the Behavior of a Novel Stiffened Hexagonal CFDST Stub Column under Axial Load
Publisher: ASCE
Abstract: A concrete-filled double skin tube (CFDST) consists of an outer steel tube, an inner steel tube, and the space between them filled with concrete. Existing studies have shown that the buckling of steel tubes can be significant ...