Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade

Lovrak, Marta

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master's thesis

Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade

Zagreb: University of Zagreb, Faculty of Civil Engineering, 2019. urn:nbn:hr:237:846187

Lovrak, Marta

University of Zagreb
Faculty of Civil Engineering
Engineering Mechanics

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APA 6th Edition

Lovrak, M. (2019). Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade (Master's thesis). Zagreb: University of Zagreb, Faculty of Civil Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:237:846187

MLA 8th Edition

Lovrak, Marta. "Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade." Master's thesis, University of Zagreb, Faculty of Civil Engineering, 2019. https://urn.nsk.hr/urn:nbn:hr:237:846187

Chicago 17th Edition

Harvard

Lovrak, M. (2019). 'Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade', Master's thesis, University of Zagreb, Faculty of Civil Engineering, accessed 23 April 2024, https://urn.nsk.hr/urn:nbn:hr:237:846187

Vancouver

Lovrak M. Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade [Master's thesis]. Zagreb: University of Zagreb, Faculty of Civil Engineering; 2019 [cited 2024 April 23] Available at: https://urn.nsk.hr/urn:nbn:hr:237:846187

IEEE

M. Lovrak, "Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade", Master's thesis, University of Zagreb, Faculty of Civil Engineering, Zagreb, 2019. Available at: https://urn.nsk.hr/urn:nbn:hr:237:846187

Cite this item: https://urn.nsk.hr/urn:nbn:hr:237:846187

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Title	Utjecaj popustljivosti stropnih ploča na seizmički odziv armiranobetonske zgrade
Title (english)	Effects of floor diaphragm flexibility on seismic response of RC building
Author	Marta Lovrak
Mentor	Damir Lazarević (mentor)
Committee member	Marko Bartolac (predsjednik povjerenstva)
Committee member	Ivan Duvnjak (član povjerenstva)
Committee member	Damir Lazarević (član povjerenstva)
Granter	University of Zagreb Faculty of Civil Engineering (Engineering Mechanics) Zagreb
Defense date and country	2019-09-19, Croatia
Scientific / art field, discipline and subdiscipline	TECHNICAL SCIENCES Civil Engineering
Abstract	Ključnu ulogu kod distribucije horizontalnih sila uzrokovanih potresnim opterećenjem imaju horizontalni elementi. Uloga ploča je osiguravanje adekvatnog prijenosa sila u grede, stupove i zidove. Zbog pojednostavljenja proračuna, najčešće se pretpostavlja da se ploče u ravnini ponašaju kao neizmjerno krute dijafragme. Analiza pomoću pretpostavke krute dijafragme je odgovarajuća kada je krutost dijafragme u ravnini velika u odnosu na krutost okvira. Međutim, za mnoge konstrukcije takva pretpostavka nije realna. Popuštanje ploče može promijeniti raspodjelu sila inercije i stvoriti razliku između ponašanja numeričkog modela i konstrukcije. Ovaj rad istražuje utjecaj popuštanja ploče na odziv armiranobetonske konstrukcije. Primjenom programa ETABS, razmatraju se različite razine popuštanja, od neizmjerno krute do potpuno fleksibilne ploče. Ako se dijafragma u proračunu ne može idealizirati kao fleksibilna ili kruta potrebno je uzeti u obzir krutost dijafragme. Popuštanje ploča uzrokuje veće opterećenje bočnih nosivih elemenata, što ujedno povećava potrebnu količinu armature. Projektiranje konstrukcija zasnovano na pretpostavci o krutoj ploči nije na strani sigurnosti jer dovodi do podcjenjivanja deformacija, sila i maksimalnih pomaka zidova i ploča.
Abstract (english)	Horizontal elements play a key role in the distribution of horizontal forces caused by earthquake loading. Main role of floor slabs is to ensure adequate load transfer of forces into beams, columns and walls. It is commonly assumed that slabs act as rigid diaphragms. Rigid diaphragm assumption is appropriate when the rigidity of the diaphragm is high relative to the rigidity of the frame. However, in some cases the assumption of a rigid diaphragm is not applicable. Change in the distribution of inertial forces can create a difference between behavior of the numerical model and the structure during an earthquake. This paper elaborates effects of floor diaphragm flexibility on seismic response of reinforced concrete building. Using ETABS, a wide range of diaphragm flexibility is considered, from rigid to a fully flexible slab. If the diaphragm in calculation analysis cannot be idealized as flexible or rigid, diaphragm stiffness must be considered. Diaphragm flexibility generally causes greater loads on the side load-bearing elements, which also increases the required amount of reinforcement. Designing structures based on the assumption of a rigid plate should be taken with precautions as it leads to an underestimation of deformations, forces and maximum displacements of walls and slabs.
Keywords
Keywords (english)
Language	croatian
URN:NBN	urn:nbn:hr:237:846187
Study programme	Title: Civil Engineering; specializations in: Construction Management, Transportation Engineering, Geotechnical Engineering, Hydraulic Engineering, Structural Engineering, Construction Materials, Theory and Modeling of Structures Course: Theory and Modeling of Structures Study programme type: university Study level: graduate Academic / professional title: magistar/magistra inženjer/inženjerka građevinarstva (magistar/magistra inženjer/inženjerka građevinarstva)
Type of resource	Text
File origin	Born digital
Access conditions	Closed access
Terms of use
Repository	Repository of the Faculty of Civil Engineering, University of Zagreb
Created on	2019-11-20 10:24:50

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