Procjena potresne otpornosti postojeće zidane zgrade

master's thesis

• Title (english): Assessment of Seismic Performance of Existing Masonry Building
• Author: Jelena Benković
• Mentor: Marija Demšić (mentor)
• Committee member: Marija Demšić (predsjednik povjerenstva)
• Committee member: Damir Lazarević (član povjerenstva)
• Committee member: Mario Uroš (član povjerenstva)
• Granter: University of Zagreb; Faculty of Civil Engineering; (Engineering Mechanics); Zagreb
• Defense date and country: 2021-09-23, Croatia
• Scientific / art field, discipline and subdiscipline: TECHNICAL SCIENCES; Civil Engineering

Abstract

Tema ovog diplomskog rada je procjena potresne otpornosti postojeće zidane zgrade. Stambena zgrada se nalazi na adresi: Deželićeva 29., 10 000 Zagreb. Zidana je zgrada oštećena nizom potresa koji su se dogodili od dana 22.03.2020. na dalje te je planirana sanacija građevine. Za predmetnu građevinu napravljen je 3D laserski snimak postojećeg stanja zgrade kako bi se analizom utvrdila geometrija i oštećenja uzrokovana potresom. Također laserskim snimkom utvrđuju se nosivi zidovi, njihova odstupanja u vertikalnosti, ekscentricitet i kontinuitet do temelja. Na temelju analize postojećeg stanja izrađen je numerički model i provedena je statička i dinamička analiza konstrukcije na djelovanje potresa. Najprije se izrađuje i analizira model konstrukcije za neoštećeno stanje prije potresa. Iz takvog modela se ispituje podudarnost sa stvarnim stanjem pukotinama kojima je građevina pružila odgovor na nedavne potrese. Kako bi se određeni utjecaji uzeli u obzir uvedene su određene pretpostavke u modelu koje pobliže opisuju pukotinsko stanje konstrukcije i smanjene mehaničke karakteristike materijala. Nakon kalibracije modela u odnosu na stvarno stanje pristupa analizi numeričkog modela konstrukcije o razini njene potresne otpornosti. Na temelju zaključaka analize postojećeg stanja prikazuju se smjernica za obnovu u okviru razine 2. Krajnji dio rada čine grafički prilozi geometrije postojećeg stanja po etažama.

Abstract (english)

The topic of this thesis is the assessment of seismic resistance of an existing masonry building. The residential building is located: Deželićeva 29., 10 000 Zagreb. The masonry building was damaged by a series of earthquakes that occurred on March 22, 2020. further and the rehabilitation of the building is planned. A 3D laser image of the existing condition of the building was made for the building in order to determine the geometry and damage caused by the earthquake. Also, the laser image determines the load-bearing walls, their deviations in verticality, eccentricity, and continuity to the foundation. Based on the analysis of the existing situation, a numerical model was developed and static and dynamic analysis of the structure on the effect of earthquakes was performed. First, a model of the structure for the undamaged condition before the earthquake is made and analyzed. From such a model, the correspondence with the actual condition of the cracks to which the building provided a response to the recent earthquakes is examined. In order to take into account certain influences, assumptions have been introduced in the model that describes in more detail the crack state of the structure and the reduced mechanical characteristics of the material. After calibration of the model in relation to the actual state, it approaches the analysis of the numerical model of the structure on the level of its seismic resistance. Based on the conclusions of the analysis of the existing condition, the guidelines for reconstruction within level 2 are presented. The final part of the paper consists of graphic contributions to the geometry of the existing condition by floors.

• Keywords: Potres; potresna otpornost; zidana zgrada; analiza postojećeg stanja konstrukcije; numerički model; obnova
• Keywords (english): Earthquake; seismic resistance; masonry building; analysis of the existing construction; numerical model; reconstruction
• Language: croatian
• URN:NBN: urn:nbn:hr:237:903710
• 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: Construction Management; 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
• Created on: 2022-01-10 08:10:15