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The seismic analysis of a typical South African unreinforced masonry structure
Thesis (MEng)--Stellenbosch University, 2014.
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| Format: | Thesis |
| Language: | en_ZA |
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Stellenbosch : Stellenbosch University
2014
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| _version_ | 1867613801359081472 |
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| access_status_str | Open Access |
| author | Van der Kolf, Thomas |
| author2 | Haas, Trevor |
| author_browse | Haas, Trevor Van der Kolf, Thomas |
| author_facet | Haas, Trevor Van der Kolf, Thomas |
| author_sort | Van der Kolf, Thomas |
| collection | Thesis |
| dc_rights_str_mv | Stellenbosch University |
| description | Thesis (MEng)--Stellenbosch University, 2014. |
| format | Thesis |
| id | oai:scholar.sun.ac.za:10019.1/86588 |
| institution | Stellenbosch University (South Africa) |
| language | en_ZA |
| last_indexed | 2026-06-10T12:41:54.752Z |
| license_str | Other — see source repository |
| provenance_str_mv | Harvested via OAI-PMH from SUNScholar — Stellenbosch University Repository |
| publishDate | 2014 |
| publishDateRange | 2014 |
| publishDateSort | 2014 |
| publisher | Stellenbosch : Stellenbosch University |
| publisherStr | Stellenbosch : Stellenbosch University |
| record_format | dspace |
| source_str | SUNScholar — Stellenbosch University Repository |
| spelling | oai:scholar.sun.ac.za:10019.1/86588 The seismic analysis of a typical South African unreinforced masonry structure Van der Kolf, Thomas Haas, Trevor Stellenbosch University. Faculty of Engineering. Dept. of Civil Engineering. Seismic Analysis Reinforced Masonry Structural analysis (Engineering) Earthquake resistant design Dissertations -- Civil engineering Buildings -- Earthquake effects Unreinforced Masonry (URM) UCTD Theses -- Civil engineering Thesis (MEng)--Stellenbosch University, 2014. ENGLISH ABSTRACT: South Africa has some regions which are susceptible to moderate seismic activity. A peak ground acceleration of between 0.1g and 0.15g can be expected in the southern parts of the Western Cape. Unreinforced Masonry (URM) is commonly used as a construction material for 2 to 4 storey buildings in underprivileged areas in and around Cape Town. URM is typically regarded as the material most vulnerable to damage when subjected to earthquake excitation. In this study, a three-storey URM building was analysed by applying seven earthquake time-histories, that can be expected to occur in South Africa, to a finite element model. Experimental data was used to calibrate the in- and out-of-plane stiffness of the URM. A linear modal dynamic analysis and non-linear implicit dynamic analysis were performed. The results indicated that tensile cracking of the in-plane piers was the dominant failure mode. The building relied on the postcracking capacity to resist the 0.15g magnitude earthquake. It is concluded that URM buildings of this type are at risk of failure especially if sufficient ductility is not provided. The results also showed that connection failure must be investigated further. Construction and material quality will have a large effect on the ability of typical URM buildings to withstand moderate magnitude earthquakes in South Africa. AFRIKAANSE OPSOMMING: Sekere gebiede in Suid-Afrika het ’n risiko van matige seismiese aktiwiteit. Aardbewings met maksimum grondversnellings van tussen 0.1g en 0.15g kan in die suidelike gedeeltes van die Wes- Kaap voorkom. Twee- tot vier-verdieping onbewapende messelwerkgeboue kom algemeen voor in die lae sosio-ekonomiese gebiede van Kaapstad. Oor die algemeen word onbewapende messelwerkgeboue as die gebou-tipe beskou wat die maklikste skade opdoen tydens aardbewings. In hierdie studie is sewe aardbewings, wat tipies in Kaapstad verwag kan word, identifiseer en gebruik om ’n tipiese drie-verdieping onbewapende messelwerkgebou te analiseer. Eksperimentele data is gebruik om die materiaaleienskappe in die in-vlak asook uit-vlak rigtings te kalibreer. Beide ’n liniêre modale en nie-liniˆere implisiete dinamiese analises is uitgevoer. Die resultate dui daarop dat die dominante falingsmode die kraak van in-vlak messelwerk-tussenkolomme is. Die gebou moes sy plastiese kapasiteit benut om die 0.15g aardbewing te kan weerstaan. Die gevolgtrekking is dat dié tipe onbewapende messelwerkgeboue ’n risiko inhou om mee te gee, veral as genoegsame vervormbaarheid nie verskaf word nie. Die resultate toon ook dat konneksie-faling verder ondersoek moet word. Kwaliteit van vakmanskap en van materiaal het ’n groot invoed op die vermoë van onbewapende messelwerkgeboue om aardbewings van matige intensiteit in Suid-Afrika te weerstaan. 2014-04-16T17:30:11Z 2014-04-16T17:30:11Z 2014-04 Thesis http://hdl.handle.net/10019.1/86588 en_ZA Stellenbosch University iv, 133 p. : ill. application/pdf Stellenbosch : Stellenbosch University |
| spellingShingle | Seismic Analysis Reinforced Masonry Structural analysis (Engineering) Earthquake resistant design Dissertations -- Civil engineering Buildings -- Earthquake effects Unreinforced Masonry (URM) UCTD Theses -- Civil engineering Van der Kolf, Thomas The seismic analysis of a typical South African unreinforced masonry structure |
| title | The seismic analysis of a typical South African unreinforced masonry structure |
| title_full | The seismic analysis of a typical South African unreinforced masonry structure |
| title_fullStr | The seismic analysis of a typical South African unreinforced masonry structure |
| title_full_unstemmed | The seismic analysis of a typical South African unreinforced masonry structure |
| title_short | The seismic analysis of a typical South African unreinforced masonry structure |
| title_sort | seismic analysis of a typical south african unreinforced masonry structure |
| topic | Seismic Analysis Reinforced Masonry Structural analysis (Engineering) Earthquake resistant design Dissertations -- Civil engineering Buildings -- Earthquake effects Unreinforced Masonry (URM) UCTD Theses -- Civil engineering |
| url | http://hdl.handle.net/10019.1/86588 |
| work_keys_str_mv | AT vanderkolfthomas theseismicanalysisofatypicalsouthafricanunreinforcedmasonrystructure AT vanderkolfthomas seismicanalysisofatypicalsouthafricanunreinforcedmasonrystructure |