Finite Element Analysis of Cooling Tower Foundation Under Wind Load

The natural draught cooling tower is very important and essential component in the thermal nuclear power stations and industrial power plants. Due to their complexities in geometry the analysis of such type of structures has attracted many researches throughout the world. At the initial stage of...

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Main Author:	Naghshineh, Ali
Format:	Thesis
Language:	English English
Published:	2006
Subjects:	Cooling towers - Nuclear power plants - Computer programs - Wind-pressure - Case studies
Online Access:	http://psasir.upm.edu.my/id/eprint/199/1/549036_FK_2006_7.pdf
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id	my-upm-ir.199
record_format	uketd_dc
spelling	my-upm-ir.1992013-05-27T06:46:28Z Finite Element Analysis of Cooling Tower Foundation Under Wind Load 2006-04 Naghshineh, Ali The natural draught cooling tower is very important and essential component in the thermal nuclear power stations and industrial power plants. Due to their complexities in geometry the analysis of such type of structures has attracted many researches throughout the world. At the initial stage of this study an attempt was made to write a computer programme for calculating the symmetrical and unsymmetrical wind loading using FORTRAN program, which is compatible with FORTRAN 90 Power Station. The programme was written according to IS: 11504/BS: 4485. The present study deals with physical and material modeling of cooling towerfoundation- soil system. The physical modeling has been carried out using solid twenty-nodded isoparametric element to model the cooling tower, annular raft foundation and soil media. Coupled finite elements were employed to represent the soil media in the near and far field the cooling tower. Cooling tower, foundation-soil system was analyzed under vertical and lateral load generated from wind loads. The soil nonlinearity was taken into the consideration using DUNCAN’S hyperbolic constitutive stress strain law. Therefore, based on those physical and material modeling a finite element program has been written. The computer software package works under FORTRAN power station and the validity of this package has been verified by solving some examples available in the literature. Finally an attempt has been made to demonstrate the applicability of the finite element program in analysis of cooling tower with the total height of 115.35 m and the radius at top, bottom and throat level are 27.535 m, 52.877 m, 25.304 m respectively, subjected to static loading . The response of the structure has been discussed with respect to displacement and stresses. Moreover an attempt has been made to study the effect of the interactive and non-interactive analysis and comparison with conventional analysis was also made. It was concluded that the interactive analysis of the cooling tower-foundation-soil media plays a major role in releasing the stresses in the cooling tower, particular at the bottom ring beam. Cooling towers - Nuclear power plants - Computer programs - Wind-pressure - Case studies 2006-04 Thesis http://psasir.upm.edu.my/id/eprint/199/ http://psasir.upm.edu.my/id/eprint/199/1/549036_FK_2006_7.pdf application/pdf en public masters Universiti Putra Malaysia Cooling towers - Nuclear power plants - Computer programs - Wind-pressure - Case studies Faculty of Engineering English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Cooling towers - Nuclear power plants - Computer programs - Wind-pressure - Case studies
spellingShingle	Cooling towers - Nuclear power plants - Computer programs - Wind-pressure - Case studies Naghshineh, Ali Finite Element Analysis of Cooling Tower Foundation Under Wind Load
description	The natural draught cooling tower is very important and essential component in the thermal nuclear power stations and industrial power plants. Due to their complexities in geometry the analysis of such type of structures has attracted many researches throughout the world. At the initial stage of this study an attempt was made to write a computer programme for calculating the symmetrical and unsymmetrical wind loading using FORTRAN program, which is compatible with FORTRAN 90 Power Station. The programme was written according to IS: 11504/BS: 4485. The present study deals with physical and material modeling of cooling towerfoundation- soil system. The physical modeling has been carried out using solid twenty-nodded isoparametric element to model the cooling tower, annular raft foundation and soil media. Coupled finite elements were employed to represent the soil media in the near and far field the cooling tower. Cooling tower, foundation-soil system was analyzed under vertical and lateral load generated from wind loads. The soil nonlinearity was taken into the consideration using DUNCAN’S hyperbolic constitutive stress strain law. Therefore, based on those physical and material modeling a finite element program has been written. The computer software package works under FORTRAN power station and the validity of this package has been verified by solving some examples available in the literature. Finally an attempt has been made to demonstrate the applicability of the finite element program in analysis of cooling tower with the total height of 115.35 m and the radius at top, bottom and throat level are 27.535 m, 52.877 m, 25.304 m respectively, subjected to static loading . The response of the structure has been discussed with respect to displacement and stresses. Moreover an attempt has been made to study the effect of the interactive and non-interactive analysis and comparison with conventional analysis was also made. It was concluded that the interactive analysis of the cooling tower-foundation-soil media plays a major role in releasing the stresses in the cooling tower, particular at the bottom ring beam.
format	Thesis
qualification_level	Master's degree
author	Naghshineh, Ali
author_facet	Naghshineh, Ali
author_sort	Naghshineh, Ali
title	Finite Element Analysis of Cooling Tower Foundation Under Wind Load
title_short	Finite Element Analysis of Cooling Tower Foundation Under Wind Load
title_full	Finite Element Analysis of Cooling Tower Foundation Under Wind Load
title_fullStr	Finite Element Analysis of Cooling Tower Foundation Under Wind Load
title_full_unstemmed	Finite Element Analysis of Cooling Tower Foundation Under Wind Load
title_sort	finite element analysis of cooling tower foundation under wind load
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Engineering
publishDate	2006
url	http://psasir.upm.edu.my/id/eprint/199/1/549036_FK_2006_7.pdf
_version_	1747810172247474176

Finite Element Analysis of Cooling Tower Foundation Under Wind Load

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