About the authors
| First name, Middle name, Last name, Scientific degree, Scientific rank, Current position. Full and brief name of the organization, The organization address. | Basharov F.F. – post-graduate student E-mail: This e-mail address is being protected from spambots. You need JavaScript enabled to view it Kazan State University of Architecture and Engineering The organization address: 420043, Russia, Kazan, Zelenaya st., 1 |
| Title of the article | Testing the 12 m span strut-framed slab made of Н114-600 grade steel decking with deck thickness minimum 0,8 mm |
| Abstract. | The paper provides test results for a 12 m span strut-framed slab made of steel decking Н114-600 with deck thickness minimum 0,8 mm produced by Estel Company, Kazan. Objectives of the test: – study strut-framed slab behavior; – study stress-strain mode of strut-framed slab members under load; estimate bearing capacity reserves for total design loading; – reliability degree checkup of the results of a strut-framed slab numerical study executed with the Lira software by comparing them with test results. To test a 12 m span strut-framed slab a workbench made of concrete foundation blocks was installed. To keep records of slab sagging a horizontally drawn metal string was engaged, and metal rulers installed vertically at nine characteristic points were checked against the string. Horizontal shift at bearings was recorded using a vernier caliper with the value of the smallest graduation 0,01 mm. Strain of profiled steel decking flanges at most loaded points were estimated using a Gugenberger strain gauge. Strain gauges were located at lowermost flanges of profiled steel decking. Verification calculations were carried out for tested loads taking into account factual sizes of structures. Test results have shown high convergence of numerical and experimental investigations: the difference between compared values of slab sagging and normal stress does not exceed 18 %. The slab failed as a result of exceeding the limit of bearing capacity of a strut-framed slab at the 9th stage of testing under load q = 673 kg/m2. As expected from theory, the reason of bearing capacity failure was local buckling of profiled steel decking which occurred at the right pyramid. |
| Keywords. | Strut-framed slab, steel decking, test methodology, mode of deformation, numerical investigation. |
| For citations: | Basharov F.F. Testing the 12 m span strut-framed slab made of Н114-600 grade steel decking with deck thickness minimum 0,8 mm // Izvestiya KGASU. 2012. №4(22) P.87-96. |
