Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake

Iran is located on Alpine-himalayan earthquake belt. Every few years destructive earthquakes happen in Various region of Iran which causes significant amount of material and human losses. Therefore seismic strengthening of buildings especially historical and old religious building, because of their...

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Autores principales:	mohammadmehdi sedaghat, reza razani
Formato:	article
Lenguaje:	FA
Publicado:	Iranian Society of Structrual Engineering (ISSE) 2019
Materias:	orchin dome reinforced concrete shotcrete earthquake boroojerd Bridge engineering TG1-470 Building construction TH1-9745
Acceso en línea:	https://doaj.org/article/4a539cc94c234bda8ab94f019b02be3b
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spelling	oai:doaj.org-article:4a539cc94c234bda8ab94f019b02be3b2021-11-08T15:51:32ZEvaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake2476-39772538-261610.22065/jsce.2017.83843.1163https://doaj.org/article/4a539cc94c234bda8ab94f019b02be3b2019-06-01T00:00:00Zhttps://www.jsce.ir/article_48597_4fde9215271a009206164c19b1fa3213.pdfhttps://doaj.org/toc/2476-3977https://doaj.org/toc/2538-2616Iran is located on Alpine-himalayan earthquake belt. Every few years destructive earthquakes happen in Various region of Iran which causes significant amount of material and human losses. Therefore seismic strengthening of buildings especially historical and old religious building, because of their cultural, historical, heritage and touristic values are of great national importance. The objective of this paper is to study the seismic behavior of a special method of retrofit of Urchin domes. This type of semi-conical masonry dome which are found in southern regions of Iran has not been structurally investigated before. As a model for this study the damaged Urchin dome of Imamzade Jafar shrine in Borujird under 2006 A.D (1385 A.H) Silakhor-Lorestan earthquake was investigated. The strengthening method used is by applying a layer of reinforced concrete (Shot-Crete) to the interior surface of the Urchin dome which was evaluated in this study. After sufficient field studies and measurement, the composite structure of the: Urchin dome, lower double layer spherical dome and the masonry supporting walls and pears were modeled using ABAQUS FEM software. The models were analysed and their frequency and dynamic behavior using time-history analysis (THA) were obtained and compared before and after the application of strengthening Shot-Crete layer. Finally by evaluating the results obtained from these studies, the causes of the failure of the tip of this dome was found to be the excessive acceleration at the tip of the dome and weakness and brittleness of the masonry material due to shearing forces. After strengthening the interior of the dome by a Shot-Crete layer the weakness and vulnerability of the dome under the applied earthquake will be significantly reduced.mohammadmehdi sedaghatreza razaniIranian Society of Structrual Engineering (ISSE)articleorchin domereinforced concreteshotcreteearthquakeboroojerdBridge engineeringTG1-470Building constructionTH1-9745FAJournal of Structural and Construction Engineering, Vol 6, Iss 1, Pp 222-237 (2019)
institution	DOAJ
collection	DOAJ
language	FA
topic	orchin dome reinforced concrete shotcrete earthquake boroojerd Bridge engineering TG1-470 Building construction TH1-9745
spellingShingle	orchin dome reinforced concrete shotcrete earthquake boroojerd Bridge engineering TG1-470 Building construction TH1-9745 mohammadmehdi sedaghat reza razani Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake
description	Iran is located on Alpine-himalayan earthquake belt. Every few years destructive earthquakes happen in Various region of Iran which causes significant amount of material and human losses. Therefore seismic strengthening of buildings especially historical and old religious building, because of their cultural, historical, heritage and touristic values are of great national importance. The objective of this paper is to study the seismic behavior of a special method of retrofit of Urchin domes. This type of semi-conical masonry dome which are found in southern regions of Iran has not been structurally investigated before. As a model for this study the damaged Urchin dome of Imamzade Jafar shrine in Borujird under 2006 A.D (1385 A.H) Silakhor-Lorestan earthquake was investigated. The strengthening method used is by applying a layer of reinforced concrete (Shot-Crete) to the interior surface of the Urchin dome which was evaluated in this study. After sufficient field studies and measurement, the composite structure of the: Urchin dome, lower double layer spherical dome and the masonry supporting walls and pears were modeled using ABAQUS FEM software. The models were analysed and their frequency and dynamic behavior using time-history analysis (THA) were obtained and compared before and after the application of strengthening Shot-Crete layer. Finally by evaluating the results obtained from these studies, the causes of the failure of the tip of this dome was found to be the excessive acceleration at the tip of the dome and weakness and brittleness of the masonry material due to shearing forces. After strengthening the interior of the dome by a Shot-Crete layer the weakness and vulnerability of the dome under the applied earthquake will be significantly reduced.
format	article
author	mohammadmehdi sedaghat reza razani
author_facet	mohammadmehdi sedaghat reza razani
author_sort	mohammadmehdi sedaghat
title	Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake
title_short	Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake
title_full	Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake
title_fullStr	Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake
title_full_unstemmed	Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake
title_sort	evaloation of strengthening of orchin dome of imamzadeh ja'far in borujerd by using interior shotcrete layer under 2006 silakhor earthquake
publisher	Iranian Society of Structrual Engineering (ISSE)
publishDate	2019
url	https://doaj.org/article/4a539cc94c234bda8ab94f019b02be3b
work_keys_str_mv	AT mohammadmehdisedaghat evaloationofstrengtheningoforchindomeofimamzadehjafarinborujerdbyusinginteriorshotcretelayerunder2006silakhorearthquake AT rezarazani evaloationofstrengtheningoforchindomeofimamzadehjafarinborujerdbyusinginteriorshotcretelayerunder2006silakhorearthquake
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Evaloation of strengthening of Orchin dome of Imamzadeh Ja'far in Borujerd by using interior shotcrete layer under 2006 Silakhor earthquake

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