Session

Architecture

Description

. In this paper behavior of flat slab structures under lateral loads, has been evaluated and analyzed. Flat slab structures show more flexibility and lateral displacement of this type of structures are considerable greater comparing to other systems. Nonlinear behavior in the regions near the slabcolumn connection and the change of stiffness in this region needs to be taken into account during the analysis. Slab-column connection characteristics needs to include the potential for punching failure which rise as a function of gravity shear ratio and the interstory drift ratio. Modeling of this type of structures based on effective slab width, which is based in flat slab frame, it describes in the best manner the behavior during lateral loads in sense that pushover and P-delta can be included to the analysis. The theoretical moment distribution from slab to column, and lateral drift in many studies has shown poor agreement with practical results. Ductile properties of the plastic hinges and their prediction of occurrence must be included in analytical model in order to represent the real behavior of this type of structures. Slab shear reinforcement over the columns will avoid the brittle punching shear failure and will provide a necessary strength and ductility to withstand lateral drift during seismic loads. Multi story buildings with flat slabs needs to include shear walls or other stiffer systems to provide good resistance and would limit the inter-story drifts.

Keywords:

Flat slab, interstory drift, effective slab width, plastic hinges, lateral loads

Session Chair

Lulzim Beqiri

Session Co-Chair

Skender Kosumi

Proceedings Editor

Edmond Hajrizi

ISBN

978-9951-437-33-2

First Page

140

Last Page

150

Location

Durres, Albania

Start Date

8-11-2014 10:30 AM

End Date

8-11-2014 10:45 AM

DOI

10.33107/ubt-ic.2014.14

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Nov 8th, 10:30 AM Nov 8th, 10:45 AM

Evaluation of the Behavior of Flat Slab Systems Subjected to Lateral Loads

Durres, Albania

. In this paper behavior of flat slab structures under lateral loads, has been evaluated and analyzed. Flat slab structures show more flexibility and lateral displacement of this type of structures are considerable greater comparing to other systems. Nonlinear behavior in the regions near the slabcolumn connection and the change of stiffness in this region needs to be taken into account during the analysis. Slab-column connection characteristics needs to include the potential for punching failure which rise as a function of gravity shear ratio and the interstory drift ratio. Modeling of this type of structures based on effective slab width, which is based in flat slab frame, it describes in the best manner the behavior during lateral loads in sense that pushover and P-delta can be included to the analysis. The theoretical moment distribution from slab to column, and lateral drift in many studies has shown poor agreement with practical results. Ductile properties of the plastic hinges and their prediction of occurrence must be included in analytical model in order to represent the real behavior of this type of structures. Slab shear reinforcement over the columns will avoid the brittle punching shear failure and will provide a necessary strength and ductility to withstand lateral drift during seismic loads. Multi story buildings with flat slabs needs to include shear walls or other stiffer systems to provide good resistance and would limit the inter-story drifts.