STRUCTURAL DESIGN OF TANGCITY MALL USING SPECIAL MOMENT RESISTING FRAME

Pratama, Doni Putra (2011) STRUCTURAL DESIGN OF TANGCITY MALL USING SPECIAL MOMENT RESISTING FRAME. S1 thesis, UAJY.

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Abstract

In earthquake prone area, buildings have to be designed according to the criteria specified based on earthquake loading code. This final project will consider Tangcity Mall building which located in Tangerang. This building will be designed based on SNI 03 2847 - 2002 and SNI 03 1729 -2002. This building will be considered as Special Moment Resisting Frame (SMRF) system and using concrete quality fc’ = 30MPa and steel quality fy = 400MPa for steel that has more than 12mm diameter in size and fy = 240MPa for steel that has less or equal 12mm diameter in size. In analyzing Tangcity Mall building, ETABS non linear and SAP2000 were used to obtain internal forces of the structure and stairs. For columns design interaction diagram of Mod-Nod and eod-Nod For the seismic design, the natural period did not fulfill the requirement but considering the story drift and the T-rayleigh are okay, so the building is considered okay. V static is used because V dynamic is less than 0.8 x V static. were used in order to obtain the longitudinal reinforcement and for designing the shear reinforcement of beams, ETABS was used by setting all of the structure to Frame Moment Release at the start and the end. For designing stairs, it consists of two parts, the landing beam and slabs. The calculation of the stairs and landing slab is considered as regular slab, while the calculation of beam is the same as regular beam. SAP2000 is used for analyzing the forces in the stairs. For designing slab, this final project uses twoway slabs method and the results are P10-175 in X direction and P10-200 in Y direction. As for the Beam, The beam is designed using special moment resisting frame and has the dimension of 400mm x 800mm, and using 13D25 top reinforcement 7D25 bottom reinforcement for left and right support and 4D25 top reinforcement and 6D25 bottom reinforcement for midspan. The shear design is assumed as normal beam by using Frame Moment Release in ETABS and it has 2 secondary beams forces that transferred in this main beam. For designing the column, this final project uses biaxial bending method for analyzing the column. The dimension of the column is 900mm x 900mm and using 44D25 as the longitudinal reinforcement. Retaining Wall Designing is calculated based on the soil data which has soft soil characteristic and γk=17KN/m3,φ= 30.00ο,andγw= 9.81KN/m3, it uses D19-200 for longitudinal reinforcement. The foundation is designed using bored pile. The piles have 80cm diameter and use 12D25 as the longitudinal reinforcement. The pier dimension is 4.4m x 4.4m and it has D25- 150 for bottom reinforcement and D19-150 for top reinforcement.

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