PERILAKU RETAK BETON BERTULANG AKIBAT PEMBUATAN LUBANG DI BADAN
ABSTRACT: Based on
service capacity of
reinforced concrete and
the possibility of
corrosion process that
lead to reinforcement
deformation, cracking in reinforced concrete should be limited and only
haired-cracking is allowed. This study objective is to know the crack pattern
and the type of fall due to hole-drilling and up-down loading. This study used 5
samples of T-beams with 175 mm x 325 mm dimension and 2000 mm length, 60 mm
thickness, and effective width 945 mm. The test was conducted by giving
non-reversal cyclic load with 100000 cycle that used Pmax = 16 kN and Pmin = 4.6 kN,
and followed by static
loading using axial
load on the
center of span
until the beam
was fallen. The
research result shows that
the first crack
was bending-crack happened
at the area
which had highest bending moment.
The first crack happened in the
tensile side of middle span at 24.78% of maximum load. The crack in the hole
happened after the first crack in the center of span due to cyclic load as well
as static load. Crack propagation or the highest rate of crack happened at test
sample BL-01 when loaded by 16 kN load, and its crack length was 24.6 cm.
Keywords: concrete beam, crack
pattern, crack propagation
Penulis: Muhammad Ujianto
Kode Jurnal: jptsipildd070011
