Performance Analysis of Shear Key in Autoclaved Aerated Concrete (AAC) Slab Subjected to Cyclic Loadings

DOI

10.2991/aer.k.211106.040How to use a DOI?

Keywords

Shear Key; Slab; AAC; Diaphragm

Abstract

Currently, lightweight slabs made of Autoclaved Aerated Concrete (AAC) have been implemented as an alternative method compared to the conventional slab. This innovation is claimed to make the installation of the slab in buildings faster and more practical. The application of AAC slab for pedestrian bridge infrastructure is quite new and very challenging since the application of AAC slab exists joints between them and needs more careful attention. In the AAC slab method, the system of joints uses only mortar filling between the slabs, which is assumed to have a relatively small shear capacity. According to the requirements in Indonesian Standard (SNI 2847-2013), the behavior of slabs in the structural system must act as a single unit (monolithic system), so the AAC slab system must be able to transfer lateral loads that acts evenly on the vertical elements of the structural system. This research begins with experimental testing on the physical and mechanical properties of AAC slabs in terms of compressive strength, modulus of elasticity, specific gravity, moisture content, and tensile strength of steel reinforcement. These data are used as parameters to perform numerical simulations of the AAC slab as well as parameters for applying AAC slab to the pedestrian bridge structure. The results of numerical analysis using the ANSYS 2019 R3 software obtained the connection strength between AAC slab for a 1% shear target of 86.37 kN, a 2.5% shear target of 237.07 kN, a 5% shear target of 406.63 kN, and a 7.5% shear target of 399.93 kN, where the strength of the connection between the AAC slab has decreased at a shear distortion target of 7,5% or a displacement control of 45 mm. The results of modeling using the SAP2000 v14 software using the AAC slab on the pedestrian bridge structure can reduce the weight of the structure by 49.002% compared to the use of conventional slab.

Copyright

© 2021 The Authors. Published by Atlantis Press International B.V.

Open Access

This is an open access article under the CC BY-NC license.

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TY  - CONF
AU  - Fachmi Fadli
AU  - Luthfi Muhammad Mauludin
AU  - Heri Kasyanto
PY  - 2021
DA  - 2021/11/23
TI  - Performance Analysis of Shear Key in Autoclaved Aerated Concrete (AAC) Slab Subjected to Cyclic Loadings
BT  - Proceedings of the 2nd International Seminar of Science and Applied Technology (ISSAT 2021)
PB  - Atlantis Press
SP  - 251
EP  - 258
SN  - 2352-5401
UR  - https://doi.org/10.2991/aer.k.211106.040
DO  - 10.2991/aer.k.211106.040
ID  - Fadli2021
ER  -