Comparing The Dynamic Properties of 1D, 2D, and 3D Models For Concrete Box-grider Bridge of 40-meter SPAN
Penulis/Author
WIRA SUCITRA IBRAHIM (1); Akhmad Aminullah, S.T., M.T., Ph.D. (2); Ir. Ali Awaludin, S.T., M.Eng., Ph.D., IPU., ACPE. (3); Prof. Ir. Bambang Suhendro, M.Sc., Ph.D. (4); Prof. Dr. Ir. Bambang Supriyadi, CES., DEA., IPU.,ASEAN.Eng. (5); Renga Rao Krishnamoorthy (6)
Tanggal/Date
1 2022
Kata Kunci/Keyword
Abstrak/Abstract
ABSTRACT Concrete box-girder is considered a rigid thin-walled structure, which is subject to deformation and forces in threedimensional
directions. However, it is commonly modeled as a 1D structure for design practicality, which influences the numerical
results of its dynamic properties when compared to that of real-time SHMS and field tests. This study modeled the concrete box-girder
structure as 1D (frame), 2D (shell), and 3D (solid) elements with MIDAS Civil 2019, in order to observe how the dynamic properties differ
among the three models. Furthermore, it was modeled and analyzed as linearly elastic material because the allowable deflection and
stress are limited by the design code. The dynamic properties obtained from these 3 models were compared with those obtained from
real-time SHMS and field tests. It was observed that both natural frequency and period of 2D and 3D models were close to those of realtime
SHMS
and
field
test,
but
that
of
1D
was
slightly
larger,
indicating
that
it
provided
natural
frequency
and
structural
rigidity
that
was
slightly
overestimated compared to the reality. In contrast to the 2D and 3D models, the structure was accounted to have a uniform
cross-sectional rigidity along the transverse direction in the 1D model. This is the reason the 1D model seems to have higher structural
rigidity and highest natural frequency compared to the other two models. This study therefore recommended that the design practice
requires the designer’s discretion when using the 1D model.
Rumpun Ilmu
Teknik Sipil
Bahasa Asli/Original Language
English
Level
Nasional
Status
Dokumen Karya
No
Judul
Tipe Dokumen
Aksi
1
B SUHENDRO AMINULLAH DKK 4148-Research Article -23595-1-10-20220729.pdf
[PAK] Full Dokumen
2
Comparing The Dynamic Properties of 1D, 2D, and 3D Models For Concrete Box-grider Bridge of 40-meter SPAN.pdf
