Prispevek leseno-steklenih stenskih elementov k potresni odpornosti lesene enostavne stavbe : diplomska naloga

Lučovnik, Ajda (author), Dolšek, Matjaž (mentor), Babič, Anže (comentor)

V sodobni arhitekturi in gradbeništvu je vedno večji poudarek na energetsko učinkoviti gradnji z uporabo naravnih materialov in izkoriščanja obnovljivih virov. Sončno energijo lahko izkoriščamo z uporabo stekla, ki v stavbo prepušča ne le svetlobo temveč deloma tudi toploto. Tako je gradnja lesenih hiš z veliko količino zasteklitve vedno bolj pogost pojav, vendar pa ima lahko takšna gradnja negativne učinke na potresno zmogljivost stavb. V trenutni standardizaciji se steklo v lesenih hišah ne predvideva kot nosilni material, čeprav nekateri proizvajalci leseno-steklene panele oglašujejo kot elemente nosilne konstrukcije. Da bi bolje razumeli prispevek leseno-steklenih panelov k potresni odpornosti lesenih stavb smo v sklopu diplomske naloge preučili in predstavili izsledke obstoječih raziskav s tega področja. Nato smo izvedli poenostavljeno potresno analizo tipske montažne hiše z vgrajenimi leseno-steklenimi stenskimi elementi ter preučevali prispevek leseno-steklenih stenskih elementov k potresni odpornosti analizirane stavbe. Kontrolirali smo tudi pomike leseno-steklenih stenskih elementov in primerjali ocenjene neelastične pomike na osnovi določil Evrokoda 8 z deformacijsko kapaciteto leseno-steklenih elementov, ki je bila eksperimentalno določena v predhodnih raziskavah. Kontrola je izvedena za mejno stanje omejitve poškodb, mejno stanje velikih poškodb in mejno stanje blizu porušitve. Rezultati kažejo na ustrezen odziv leseno-steklenih stenskih elementov, ki so v obravnavani stavbi uporabljeni le na eni ravnini stavbe. Poleg tega zaključek temelji na predpostavkah, da se deformacije zaradi potresa enakomerno porazdelijo po višini stavbe in da stiki med lesenimi elementi ne predstavljajo šibkih delov konstrukcije. Za potrditev teh predpostavk bi bilo treba izvesti nelinearno potresno analizo in analizo tveganja, kar pa presega okvire te diplomske naloge.

• Language: Slovenian
• Keywords: Potresno inženirstvo, steklo, les, montažne hiše, deformacijska kapaciteta, nosilnost
• Work type: Bachelor thesis/paper
• Typology: 2.11 - Undergraduate Thesis
• Organization: FGG - Faculty of Civil and Geodetic Engineering
• Publisher: [A. Lučovnik]
• Year: 2020
• PID: 20.500.12556/RUL-118122
• UDC: 624.042.7(043.2)
• COBISS.SI-ID: 45817091
• Publication date in RUL: 21.08.2020

Secondary language

• Language: English
• Title: Contribution of timber-glass wall elements to the earthquake resistance of simple timber building : graduation thesis

Abstract

In modern architecture and civil engineering, there is an increasing emphasis on energy efficient construction using natural materials and the exploitation of renewable resources. Solar energy can be partially captured through the glass, which transmits not only light but also heats the building. Thus, the construction of timber houses with a significant amount of glazing is becoming increasingly common. Conversely, such construction can have adverse effects on earthquake resistance of houses. In current standardisation, however, glass is not considered as a load-bearing material, although some manufacturers advertise timber-glass panels as elements of load-bearing construction. To better understand the contribution of timber-glass panels to the seismic resistance of timber buildings, we examined the existing research from the field of timber-glass panels and present the findings in the first part of the thesis. This is followed by a simplified seismic analysis of a typical prefabricated house with timber-glass wall elements, aimed at estimating the contribution of timber-glass wall elements to the earthquake resistance of the building. In addition, the displacements of the timber-glass wall elements are verified by comparing the inelastic displacement determined according to the Eurocode 8 provisions and the experimentally-based displacement capacity of timber-wood panels obtained from previous studies. The verification was performed for the limit state of damage limitation, significant damage and the near-collapse limit state. The results indicated an appropriate seismic performance of timber-glass wall elements, which are used only in one plane of the analysed building. In addition, the conclusion is based on assuming uniformly distributed seismic demand in terms of deformations along the building height and that the connections between the structural elements are not the critical parts of the structure. These assumptions can be verified by a nonlinear seismic analysis and risk analysis, which, is beyond the scope of this thesis.

• Keywords: Earthquake engineering, glass, timber, prefabricated houses, displacement capacity, strength