Experimental Investigation on Cold-Formed Steel Foamed Concrete Composite Wall under Compression
A series of tests on cold-formed steel foamed concrete (CSFC) composite walls subjected to axial load were proposed. The primary purpose of the experiments was to study the mechanical behavior and identify the failure modes of CSFC composite walls. Two main factors were considered in this study: 1) specimen with pouring foamed concrete or without and 2) different foamed concrete density ranks (corresponding to different foamed concrete strength). The interior space between two pieces of straw board of the specimen W-2 and W-3 were poured foamed concrete, and the specimen W-1 does not have foamed concrete core. The foamed concrete density rank of the specimen W-2 was A05 grade, and that of the specimen W-3 was A07 grade. Results showed that the failure mode of CSFC composite wall without foamed concrete was distortional buckling of cold-formed steel (CFS) column, and that poured foamed concrete includes the local crushing of foamed concrete and local buckling of CFS column, but the former prior to the later. Compared with CSFC composite wall without foamed concrete, the ultimate bearing capacity of spec imens poured A05 grade and A07 grade foamed concrete increased 1.6 times and 2.2 times respectively, and specimen poured foamed concrete had a low vertical deformation. According to these results, the simplified calculation formula for the CSFC wall subjected to axial load was proposed, and the calculated results from this formula are in very good agreement with the test results.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1132168Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 620
 Fülöp LA, Dubina D, “Performance of wall-stud cold-formed shear panels under monotonic and cyclic loading PartI: experimental research,” Thin-Walled Struct, vol. 42, no. 2, pp. 321–38, 2004.
 Lin SH, Pan CL, and Hsu WT, “Monotonic and cyclic loading tests for cold-formed steel wall frames sheathed with calcium silicate board,” Thin-Walled Struct, vol. 74, pp. 49–58, 2014.
 Shakibanasab A, Attari Nader KA, and Mehdi S, “A statistical and experimental investigation into the accuracy of capacity reduction factor for cold-formed steel shear walls with steel sheathing,” Thin-Walled Struct, vol. 77, pp. 56–66, 2014.
 H. Wang and Y. Zhang, “Experimental and numerical investigation on cold-formed steel C-section flexural members,” Journal of Constructional Steel Research, vol. 65, pp. 1225–1235, 2009.
 Md Azree Othuman Mydin, Y.C. Wang. Structural performance of lightweight steel-foamed concrete-steel composite walling system under compression. Thin-Walled Struct 2011; 49:66–76.
 P. Prabha, V. Marimuthu, M. Saravanan, G.S. Palani, N. Lakshmanan, and R. Senthil, “Effect of confinement on steel-concrete composite light-weight load-bearing wall panels under compression,” Journal of Constructional Steel Research, vol. 81, pp. 11–19, 2013.
 GB/T 228.1-2010, “Metallic materials-Tensile testing Part1：Method of test at room temperature,” Standard China, 2010.
 JG/T 266-2011, “Foamed concrete,” Standard China, 2011.
 GB/T 50152-2012, “Standard for test method of concrete structures,” Standard China, 2012.
 ASTM International, “Standard Test Methods for Conducting Strength Tests of Panels for Building Construction, ASTM Standard E 72-10,” West Conshohocken, PA, 2005.
 JGJ 383-2016, “Technical specification of lightweight steel and lightweight concrete structures,” Standard China, 2016.