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All Journal Civil Engineering Dimension
Sugeng Wijanto
PT. Gistama Intisemesta Jalan Puri Kencana Raya Blok J-1 No. 3-B Jakarta 11610 Indonesia
Civil Engineering, Building, Construction & Architecture

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Seismic Behaviour of Strengthened Unreinforced Masonry Walls using Kevlar-FRP Sugeng Wijanto; Takim Andriono; Jovita Augusta Tanudjaja
Civil Engineering Dimension Vol. 23 No. 1 (2021): MARCH 2021
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1542.455 KB) | DOI: 10.9744/ced.23.1.44-53

Abstract

Unreinforced masonry walls (URM) in old buildings are vulnerable to collapse upon receiving high lateral inertia force due to earthquakes. However, a high strength fiber material such as Kevlar fiber has been identified as able to improve the URM-Wall performance, especially in shear strength enhancement. In this research, the seismic performance of an URM-Wall was analysed using SAP2000 by modeling the wall with three dimensional solid elements. Solids and springs as link connectors were assigned to represent the masonry behavior. The aim of this research is to compare between results obtained from the computer analyses and the previously conducted laboratory experiments. The effectiveness of Kevlar material installed in the diagonal directions of both wall surfaces was investigated. It was found that the failure mechanism shown by the SAP2000 model is similar to the laboratory test results.
A Study on Finite Element Modelling and Analysis with respect to Experimental Results of Strengthened Unreinforced Masonry Walls With and Without Kevlar-FRP Sugeng Wijanto; Takim Andriono; Jovita Tanudjaja
Civil Engineering Dimension Vol. 23 No. 2 (2021): SEPTEMBER 2021
Publisher : Institute of Research and Community Outreach - Petra Christian University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1115.602 KB) | DOI: 10.9744/ced.23.2.67-77

Abstract

Unreinforced masonry (URM) walls, found in most historical buildings in Indonesia, are relatively brittle with wide variety of material properties. The behaviour of URM walls is very complex, especially when subjected to seismic excitation. In this research, a finite element modelling was set up in order to analyse the seismic performance of URM wall experimental test units, with and without strengthening material. The analysis was conducted using SAP2000 computer program. Three dimensional solids and springs as link connectors were assigned to represent the masonry behaviour. This research aims to compare results obtained from the computer analysis and the previously conducted laboratory experiments. The effectiveness of Kevlar fibre material, which was installed on both wall surfaces and modelled as truss element was also investigated. It was found that the failure mechanisms shown by the SAP2000 model was similar to the laboratory test results. The use of Kevlar Fibre as strengthening material was found able to significantly increase the stiffness and shear capacity of the URM wall.
Co-Authors Jovita Augusta Tanudjaja Jovita Tanudjaja Takim Andriono Takim Andriono