Design Case Study Al Haje_ Latifa School (Design live load value, and alternate floor system )

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Loay Qabaha
Basel Salama
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In LRFD method, the loads are generally magnified by a set of load factors that depends on the nature and significance of the load combinations. In this project, we tried and evaluated the load factor for live loads in schools for some load combinations based on reliability analysis. The resulting live load factors will be compared against factors recommended by design codes, such as UBC, IBC and ASCE.    The project will be done through stages: First, data on the variation of live loads in certain types of schools in Palestine will be collected and processed. Second, reliability analysis will be performed to obtain the live load factors considering different strength criteria for different levels  of reliability index. Third, the resulting load factors will be compared against those recommended by design codes.    The new load factors will be applied to the design of a typical school in Palestine and the results of the design will be compared to the design that would use code-specified load factors. The comparison will focus on the economic and safety aspects of the design.   In Part 2 of the project, we proposed another floor system to replace the commonly used system (of slab-on-drop-beams). The alternate floor system is a flat plate system. All checks and comparisons will be done based on the seismic analysis and design of the selected school building.  We found that the steel reinforcement quantities and concrete volumes of the two systems  are  comparable  but  with  the  advantage  of  flat  plate  being  easier  to  construct  and requires simpler formwork and can lead to savings in the construction phase.   
LRFD    Factor   .   reliability analysis    Mat lab   :  UBC, IBC and ASCE. : : Mat lab    reliability analysis    : . Factor     . 2 UBC CODE    .