Analisis Perbandingan Simpangan Lateral dan Volume Material Antara Variasi Balok Grid Sejajar dan Diagonal pada Bangunan Beton Bentang Lebar (Mengacu pada Peraturan American Concrete Institute)
Sari: In the concrete’s
buildings with large spans, the using of the ordinary structure system will
create the dimensions of the beam,
column, and plate are large so that the building be disproportionate.
Therefore, the waffle slab structure system was developed. Waffle slab is
crossed beam system that is used to increase the stiffness of the plate, so
that the smaller the deflection occurs, thus dimensional of structural elements
can be minimized and eventually become less material usage. Waffle slab has
many types, including the type of parallel waffle slab and diagonal waffle
slab. This research aims to determine which system is more economical and rigid
between the two types of those. This research uses 1 ordinary building model as
a standard, 5 parallel waffle slab’s building and 5 diagonal waffle slab’s
building with Lx and Ly spans is 10 m, height of each floor is 4 m, and given
the same loads in accordance with the regulations of the American Society of
Civil Engineers ( ASCE ). There are 5 combinations of crossed beams who start
of division 1 Lx and 1 Ly to division 5 Lx and 5 Ly for each waffle slab
building model . This research was supported by the program Extended Three
Dimensional Analysis of Building Systems ( ETABS ) and refers to the regulation
American Concrete Institute ( ACI ). The results showed that the parallel
waffle slab 1-1 has the best level of the material’s efficiency , amounting to
29.38 %, while the diagonal waffle slab 4-4 even more wasteful 38.78 % compared
to the ordinary building’s structure. The
diagonal waffle slab 5-5 is the most rigid system, It’s stiffness
increased by 40.41 %, while the parallel waffle slab 4-4 56.19 % more flexible
than the ordinary building’s structure, but the drift is still into the limits
of the allowable story drift.
Penulis: Angga Satriadi,
Hanafiah, Imron Fikri Astira
Kode Jurnal: jptsipildd130052
