Lightweight steel concrete structures slab panels load-bearing capacity

¹ Peter the Great St. Petersburg Polytechnic University, Politekhnicheskaya, 29, Saint-Petersburg, 195251, Russia
² Intech LB, Ltd, Ispolkomskaya, 4-6, letter A, room 4H, Saint-Petersburg, 196024, Russia

^* Corresponding author: fishermanoff@mail.com

Abstract

Lightweight steel concrete structures (LSCS) - an innovative building structure type that can be used both as load-bearing and as enclosing one. They consist of profiled steel usually galvanized and cold-bent - filled with a monolithic foam concrete with a 200kg/m3 density, and with fiber cement sheets sheathing. These structures can be used in industrial and civil buildings as internal and external bearing and enclosing wall structures, and as slabs. According to the LSCS production method, prefabricated panels (walls and slabs) and building site performed constructions are distinguished. The article presents the LSCS subspecies, representing slabs panels made of galvanized profiled steel, density medium grade D400 monolithic foam concrete and sheets “Steklotsem” sheathing, bearing capacity experimental studies results. The paper confirms that such panels can be used in civil buildings and withstand the appropriate load, regulated by the current codes and rules. Moreover, it has been experimentally proved that the foam concrete, despite its own extremely low strength class, actually includes in the operation, preventing such effects as stability local loss, crushing and profile steel elements cross-section warping and increases the slabs overall load capacity by 20-25%.