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undergraduate thesis
Horizontalni sudari među susjednim blokovima uslijed potresne pobude podloge
2020. urn:nbn:hr:157:434249
Brnić, Dorian
University of Rijeka
Faculty of Civil Engineering

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Brnić, D. (2020). Horizontalni sudari među susjednim blokovima uslijed potresne pobude podloge (Undergraduate thesis). Rijeka: University of Rijeka, Faculty of Civil Engineering. Retrieved from https://urn.nsk.hr/urn:nbn:hr:157:434249

Brnić, Dorian. "Horizontalni sudari među susjednim blokovima uslijed potresne pobude podloge." Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:157:434249

Brnić, Dorian. "Horizontalni sudari među susjednim blokovima uslijed potresne pobude podloge." Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, 2020. https://urn.nsk.hr/urn:nbn:hr:157:434249

Brnić, D. (2020). 'Horizontalni sudari među susjednim blokovima uslijed potresne pobude podloge', Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, accessed 02 April 2025, https://urn.nsk.hr/urn:nbn:hr:157:434249

Brnić D. Horizontalni sudari među susjednim blokovima uslijed potresne pobude podloge [Undergraduate thesis]. Rijeka: University of Rijeka, Faculty of Civil Engineering; 2020 [cited 2025 April 02] Available at: https://urn.nsk.hr/urn:nbn:hr:157:434249

D. Brnić, "Horizontalni sudari među susjednim blokovima uslijed potresne pobude podloge", Undergraduate thesis, University of Rijeka, Faculty of Civil Engineering, Rijeka, 2020. Available at: https://urn.nsk.hr/urn:nbn:hr:157:434249

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Metadata
TitleHorizontalni sudari među susjednim blokovima uslijed potresne pobude podloge
Title (english)Horizontal collisions between adjacent blocks due to earthquake excitation
AuthorDorian Brnić
MentorNina Čeh (mentor)
Committee memberNina Čeh (predsjednik povjerenstva)
GranterUniversity of Rijeka
Faculty of Civil Engineering
Rijeka
Defense date and country2020-09-21, Croatia
Scientific / art field,
discipline and subdiscipline		TECHNICAL SCIENCES
Basic Technical Sciences
Technical Mechanics (Mechanics of Rigid and Deformable Bodies)
Abstract
Ovaj završni rad se bavi tematikom horizontalnih sudara uslijed potresne pobude među susjednim krutim tijelima, motiviran sudarima među građevinama uslijed potresa zbog raznih mehaničkih karakteristika, nedovoljnog međuprostora i out-of-phase vibracija. Teorijski se dio bavi opisivanjem i analizom sudaranja, njegovog modeliranja, navodi primjere iz prakse i navodi povijesni pregled istraživanja sudaranja. Također, tu se izvode jednadžbe kretanja za ljuljanje pravokutnog bloka na krutoj podlozi... More uz djelovanje horizontalnih sila od sudara sa susjednim blokom te opisivanjem gubitka energije prilikom sudara. Izvođenje jednadžbi kretanja se prikazuje za tri slučaja koji se ljuljaju: translaciju bloka, rotaciju oko točke A i rotaciju oko točke B bloka. Nadalje, objašnjena su dva slučaja kada dolazi do gubitka energije prilikom sudara blokova: kada se blokovi sudare sa podlogom, ili kada se blokovi međusobno sudare. U drugom dijelu provedeni su eksperimenti te prikazani grafovi stabilnosti blokova i rezultati optičkih mjerenja eksperimenta. Eksperimenti su se provodili pomoću potresne platforme Quanser STI-III i optičkog mjernog sustava GOM mbH PONTOS 3D 4M, a ispitane su dvije vrste uzorka, oznake B6M i B8S. Uzorke se postavlja na potresni stol u tri konfiguracije, a sustavu se zadaje različita amplituda i frekvencija funkcije pomaka podloge, te se promatra što se događa s blokovima, odnosno je li ostaju stabilni, prevrću se ili se periodično ljuljaju. Iz ovih promatranja dobiju se grafovi stabilnosti. Optičkim mjernim sustavom se pratilo četiri odabrana eksperimenta iz kojih smo dobili dijagrame pomaka potresnog stola u vremenu, kutova zaokreta blokova u vremenu i udaljenosti među njima. Less
Abstract (english)
This work address horizontal collisions between adjacent blocks, motivated by collisions between structures during earthquakes due to various mechanical properties, unsufficient gap between them and out-of-phase vibrations. The theoretical part deals with the description and analysis of pounding, presents practical examples and gives a historical overview of collision research. It also gives the equation of motion for rocking of a rectangular block on a rigid surface considering horizontal... More forces due to collision with adjacent blocks and describing the energy loss during collisions. The equations of motions are derived for three cases: translation of the block, rotation around point A, and rotation around point B of the block. Furthermore, two cases of energy loss that can occure during rocking blocks collide are explained: when blocks collide with the ground, or when blocks collide with each other. In the second part experiments are carried out, stability graphs are obtained and results from optical measurements are presented. Experimental part is carried out using the quanser STI-III seismic platform and GOM mbH PONTOS 3D 4M optical measuring system, while two types of samples, B6M and B8S, are used. The samples are placed on a seismic platform in three configurations, and the system is run by assigning various amplitudes and frequencies, while the response of the blocks is observed. The blocks either remain stable, overturn or rock periodically. From these tests, stability graphs are obtained. The optical measuring system monitored four selected experiments from which we obtained diagrams showing the displacement of the seismic table in time, the angles of rotation of the blocks and the distance between them. Less
Keywords
Keywords (english)
Languagecroatian
URN:NBNurn:nbn:hr:157:434249
ProjectNumber: -
Title: Collisions in Rocking Multi-Body Systems – experimental and numerical investigation
Acronym: CoRoS
Leader: Nina Čeh
Jurisdiction: Croatia
Funder: UKF
ProjectNumber: RC.2.2.06-0001
Title: Razvoj istraživačke infrastrukture na kampusu Sveučilišta u Rijeci
Leader: Nevenka Ožanić
Jurisdiction: Croatia
Funder: EFRR, MZO
Study programmeTitle: Civil Engineering
Study programme type: university
Study level: undergraduate
Academic / professional title: sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva (sveučilišni/a prvostupnik/ prvostupnica (baccalaureus/baccalaurea) inženjer/inženjerka građevinarstva)
Type of resourceText
File originBorn digital
Access conditionsOpen access
Terms of useLicence In copyright icon
Created on2020-12-09 13:14:18
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