Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak

For a country like Malaysia which located at stable Sunda Shelf, an earthquake event is an unthinkable, however at end of year 2002, Sumatra earthquake had caused a panic to lot of people in Penang with few buildings were damages. Majority old high-rise building in Malaysia was not design for earthq...

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Main Author:	Ishak, Izzul Syazwan
Format:	Thesis
Language:	English
Published:	2021
Subjects:	Earthquake hazard analysis
Online Access:	https://ir.uitm.edu.my/id/eprint/61014/1/61014.pdf
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spelling	my-uitm-ir.610142022-06-07T06:10:45Z Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak 2021-09 Ishak, Izzul Syazwan Earthquake hazard analysis For a country like Malaysia which located at stable Sunda Shelf, an earthquake event is an unthinkable, however at end of year 2002, Sumatra earthquake had caused a panic to lot of people in Penang with few buildings were damages. Majority old high-rise building in Malaysia was not design for earthquake but equip with water tanks. Thus, the main objective of this study is to find the ideal location and water level of tuned liquid damper (water tanks) that give optimum structural response reduction during Southern Sumatra earthquake. The key research for this thesis is numerical analysis using SAP2000, but two shaking table experiments were performed for validation purposes of software modelling. Artificial Neural Networks are utilized to simulate human decision-making abilities to predict new desire output which is based on past input and output data. Three parameters were considered which are mass ratio, depth ratio and water tanks positions. From the shaking table test results, it was found that there is no arrangement of Multiple Tuned Liquid Damper that performs better at all motion levels. In terms of overall performance, however, arrangement 2 is preferred. This study also highlights three different heights of high-rise reinforced concrete structures which are 10, 15 and 20 storey high in order to see the relationship between building height and water tanks position during earthquake excitation. Results shows each position of water tanks will gave a different response reduction depending on the height of building. This indicate that multiple water tanks capable to reduce the structure response during earthquake excitation by adjusting water level and its setup location. Artificial Neural Network predicted 25 storey high based on the input and output gathered in SAP2000. According to Artificial Neural Network, a 25-story height filled with only 1/4 of water has the lowest acceleration reaction. As a result, in areas with low seismic activity, such as Malaysia, where these water tanks serve a function other than just water storage, multiple water tanks can be considered cost-effective as a passive damper. 2021-09 Thesis https://ir.uitm.edu.my/id/eprint/61014/ https://ir.uitm.edu.my/id/eprint/61014/1/61014.pdf text en public phd doctoral Universiti Teknologi MARA College of Engineering Mohd Amin, Norliyati (Ts. Dr.)
institution	Universiti Teknologi MARA
collection	UiTM Institutional Repository
language	English
advisor	Mohd Amin, Norliyati (Ts. Dr.)
topic	Earthquake hazard analysis
spellingShingle	Earthquake hazard analysis Ishak, Izzul Syazwan Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak
description	For a country like Malaysia which located at stable Sunda Shelf, an earthquake event is an unthinkable, however at end of year 2002, Sumatra earthquake had caused a panic to lot of people in Penang with few buildings were damages. Majority old high-rise building in Malaysia was not design for earthquake but equip with water tanks. Thus, the main objective of this study is to find the ideal location and water level of tuned liquid damper (water tanks) that give optimum structural response reduction during Southern Sumatra earthquake. The key research for this thesis is numerical analysis using SAP2000, but two shaking table experiments were performed for validation purposes of software modelling. Artificial Neural Networks are utilized to simulate human decision-making abilities to predict new desire output which is based on past input and output data. Three parameters were considered which are mass ratio, depth ratio and water tanks positions. From the shaking table test results, it was found that there is no arrangement of Multiple Tuned Liquid Damper that performs better at all motion levels. In terms of overall performance, however, arrangement 2 is preferred. This study also highlights three different heights of high-rise reinforced concrete structures which are 10, 15 and 20 storey high in order to see the relationship between building height and water tanks position during earthquake excitation. Results shows each position of water tanks will gave a different response reduction depending on the height of building. This indicate that multiple water tanks capable to reduce the structure response during earthquake excitation by adjusting water level and its setup location. Artificial Neural Network predicted 25 storey high based on the input and output gathered in SAP2000. According to Artificial Neural Network, a 25-story height filled with only 1/4 of water has the lowest acceleration reaction. As a result, in areas with low seismic activity, such as Malaysia, where these water tanks serve a function other than just water storage, multiple water tanks can be considered cost-effective as a passive damper.
format	Thesis
qualification_name	Doctor of Philosophy (PhD.)
qualification_level	Doctorate
author	Ishak, Izzul Syazwan
author_facet	Ishak, Izzul Syazwan
author_sort	Ishak, Izzul Syazwan
title	Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak
title_short	Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak
title_full	Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak
title_fullStr	Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak
title_full_unstemmed	Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak
title_sort	numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / izzul syazwan ishak
granting_institution	Universiti Teknologi MARA
granting_department	College of Engineering
publishDate	2021
url	https://ir.uitm.edu.my/id/eprint/61014/1/61014.pdf
_version_	1783735199877562368

Numerical study on seismic responses for high rise building by different positions of water tanks as multiple tuned liquid damper / Izzul Syazwan Ishak

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