Multi-Story Volumetric Blocks Buildings with Lower Frame Floors

Author:

Teshev Ilia1ORCID,Bespayev Aliy2,Zhambakina Zauresh1,Tamov Murat3ORCID,Altigenov Ulan4,Zhussupov Timur4ORCID,Tolegenova Aigerim1

Affiliation:

1. Department of Construction and Building Materials, Satbayev University, Almaty 050013, Kazakhstan

2. Kazakh Research and Design Institute of Construction and Architecture, Almaty 050046, Kazakhstan

3. Department of Building Structures, Kuban State University of Technology, Krasnodar 350072, Russia

4. Faculty of Architecture and Civil Engineering, L.N. Gumilyov Eurasian National University, Astana 010008, Kazakhstan

Abstract

This article presents the results of experimental studies of the stress–strain state of volumetric blocks based on the underlying frame structures. The aim of the research is to evaluate the stress–strain state and the nature of damage development as a result of an increase in the load up to a critical level. Based on the analysis of the nature of the damage, recommendations have been developed to strengthen the destruction zone. Data were collected on the redistribution of stresses and deformations, the formation of cracks and joint openings, the magnitude of horizontal displacements, and the failure mode of volumetric blocks and floor frames. Five full-scale volumetric blocks were tested under the loading of hydraulic jacks, differing in concrete type, reinforcement, presence of doors, and dimensions of the stylobate beams. When the volumetric modules were supported by a frame floor the results revealed that the maximum destructive load of 10,462 kN was observed in the first specimen; the horizontal displacements of the walls decreased by 13–18 mm, and there was a decrease in the crack opening width to 0.5 mm. The cracks decreased the strength of the walls, leading to a redistribution of the compressive stresses and their increase in the support zone. The most significant compressive strains in concrete in the corner parts of longitudinal walls were in the range of (600–620) × 10−6, and in the middle part of the walls, 370 × 10−6 were observed. Furthermore, the largest cracks caused significant horizontal displacements (deplanation) of the walls, which decreased the stiffness of the conjunction of longitudinal walls with the floor slab and created an additional eccentricity of the vertical force. Based on the findings, the correlation between the measured parameters of each specimen at all stages of vertical load increase is demonstrated and illustrated in graphs of the measured parameters. The importance of quantity compliance with the initial rigid connection between the longitudinal wall and ceiling plate has been estimated.

Publisher

MDPI AG

Reference24 articles.

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2. International Educational Corporation, Auyesbayev, Y.T., and Sundetova, A.Z. (2023). International Educational Corporation History of Development of Block-Modular Construction: Wat to solve the Housing Problem. Bull. Kazakh Lead. Acad. Archit. Constr., 87, 154–162.

3. Effect of Directly Welded Stringer-To-Beam Connections on the Analysis and Design of Modular Steel Building Floors;Annan;Adv. Struct. Eng.,2009

4. Adoption of Prefabricated Housing–the Role of Country Context;Steinhardt;Sustain. Cities Soc.,2016

5. Lawson, R.M., Grubb, P.J., Prewer, J., and Trebilcock, P.J. (1999). Modular Construction Using Light Steel Framing: An Architect’s Guide, The Steel Construction Institute.

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