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<p>The required seismic resistance of facilities can be ensured both by selecting a seismically favorable construction site and by developing the most rational structural and planning schemes for buildings. Unfortunately, research on the design and construction of buildings using base beam slabs remains scarce. In this study, the potential of utilising the construction technology “prefabricated reinforced concrete beamless structure” for construction in seismic areas was investigated using vibrodynamic and static tests on a full-scale fragment of a residential building with prefabricated reinforced concrete slabs and monolithic diaphragms. The study included the investigation of the stress-strain state of monolithic diaphragms and elements of precast reinforced concrete slabs under different levels of dynamic effects, including the stage of formation and crack opening, design loads, and exhaustion of bearing capacity; obtaining data on the horizontal stiffness of beamless slabs in the longitudinal and transverse direction of the building; evaluation of bearing capacity, stiffness and crack resistance of beamless slabs under the action of vertical static loads. The acceleration in the longitudinal direction created during the vibrodynamic tests was sufficient to ensure the building’s earthquake resistance. The results showed that the acceleration of the experimental fragment in the longitudinal direction was 0.818&#xa0;g, exceeding the expected acceleration in a real 7-point earthquake by 1.87 times. Based on the results, it can be stated that the proposed seismic design of the building for soil conditions with seismic properties II and III is ensured.</p>

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Seismic performance of multi-story buildings with prefabricated beamless slabs

  • 期刊论文

  • 发表日期：

    2026年4月7日

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  • Ulan Altigenov,
  • Assel Tulebekova,
  • Ulan Kuralov,
  • Aliy Bespayev,
  • Ilia Teshev,
  • Timoth Mkilima

摘要

The required seismic resistance of facilities can be ensured both by selecting a seismically favorable construction site and by developing the most rational structural and planning schemes for buildings. Unfortunately, research on the design and construction of buildings using base beam slabs remains scarce. In this study, the potential of utilising the construction technology “prefabricated reinforced concrete beamless structure” for construction in seismic areas was investigated using vibrodynamic and static tests on a full-scale fragment of a residential building with prefabricated reinforced concrete slabs and monolithic diaphragms. The study included the investigation of the stress-strain state of monolithic diaphragms and elements of precast reinforced concrete slabs under different levels of dynamic effects, including the stage of formation and crack opening, design loads, and exhaustion of bearing capacity; obtaining data on the horizontal stiffness of beamless slabs in the longitudinal and transverse direction of the building; evaluation of bearing capacity, stiffness and crack resistance of beamless slabs under the action of vertical static loads. The acceleration in the longitudinal direction created during the vibrodynamic tests was sufficient to ensure the building’s earthquake resistance. The results showed that the acceleration of the experimental fragment in the longitudinal direction was 0.818 g, exceeding the expected acceleration in a real 7-point earthquake by 1.87 times. Based on the results, it can be stated that the proposed seismic design of the building for soil conditions with seismic properties II and III is ensured.