{"id":6071,"date":"2026-10-19T09:48:26","date_gmt":"2026-10-19T09:48:26","guid":{"rendered":"https:\/\/phd.hi.is\/doktorsvorn\/doktorsvorn-i-byggingarverkfraedi-saharalsadat-rahpeyma\/"},"modified":"2026-10-19T09:48:26","modified_gmt":"2026-10-19T09:48:26","slug":"doktorsvorn-i-byggingarverkfraedi-saharalsadat-rahpeyma","status":"publish","type":"phd_defence","link":"https:\/\/phd.hi.is\/en\/doktorsvorn\/doktorsvorn-i-byggingarverkfraedi-saharalsadat-rahpeyma\/","title":{"rendered":"Doktorsv\u00f6rn \u00ed byggingarverkfr\u00e6\u00f0i – Saharalsadat Rahpeyma"},"content":{"rendered":"
\n
\n

Doktorsefni:<\/strong>\u00a0Saharalsadat Rahpeyma<\/p>\n

Heiti ritger\u00f0ar:<\/strong>\u00a0Greining \u00e1 sta\u00f0bundnum jar\u00f0skj\u00e1lfta\u00e1hrifum \u00fat fr\u00e1 \u00fe\u00e9ttum hr\u00f6\u00f0unarm\u00e6lanetum \u00ed bygg\u00f0 \u00e1 \u00cdslandi<\/p>\n

Andm\u00e6lendur:<\/strong>
\nDr. John Douglas, d\u00f3sent vi\u00f0 Strathclyde h\u00e1sk\u00f3la \u00ed Glasgow, Skotlandi
\nDr. Dominik H. Lang, forst\u00f6\u00f0uma\u00f0ur N\u00e1tt\u00faruv\u00e1rsvi\u00f0s, Norsku jar\u00f0t\u00e6knistofnuninni, Osl\u00f3, Noregi.<\/p>\n

Lei\u00f0beinandi:<\/strong>\u00a0Dr. Benedikt Halld\u00f3rsson, v\u00edsindama\u00f0ur vi\u00f0 Umhverfis- og byggingarverkfr\u00e6\u00f0ideild H\u00e1sk\u00f3la \u00cdslands og forst\u00f6\u00f0uma\u00f0ur ranns\u00f3kna vi\u00f0 Ranns\u00f3knarmi\u00f0st\u00f6\u00f0 H\u00e1sk\u00f3la \u00cdslands \u00ed jar\u00f0skj\u00e1lftaverkfr\u00e6\u00f0i, og s\u00e9rfr\u00e6\u00f0ingur vi\u00f0 \u00farvinnslu- og ranns\u00f3knasvi\u00f0 Ve\u00f0urstofu \u00cdslands.\u00a0<\/p>\n

Einnig \u00ed doktorsnefnd:<\/strong>
\nDr. Sigurj\u00f3n J\u00f3nsson, pr\u00f3fessor vi\u00f0 King Abdullah v\u00edsinda- og t\u00e6knih\u00e1sk\u00f3lann \u00ed Saudi Arab\u00edu.
\nDr. Russell A. Green, pr\u00f3fessor vi\u00f0 T\u00e6knih\u00e1sk\u00f3la Virgin\u00edu \u00ed Bandar\u00edkjunum.\u00a0
\nDr. Birgir Hrafnkelsson pr\u00f3fessor vi\u00f0 Raunv\u00edsindadeild H\u00e1sk\u00f3la \u00cdslands.\u00a0<\/p>\n

Doktorsv\u00f6rn st\u00fdrir:<\/strong>\u00a0Dr. Gu\u00f0mundur Freyr \u00dalfarsson, pr\u00f3fessor og deildarforseti Umhverfis- og byggingarverkfr\u00e6\u00f0ideildar H\u00e1sk\u00f3la \u00cdslands.<\/p>\n

\u00c1grip<\/strong><\/p>\n

\u00cd doktorsverkefninu voru sta\u00f0bundin m\u00f6gnunar\u00e1hrif efstu jar\u00f0laga \u00e1 jar\u00f0skj\u00e1lftabylgjur greind me\u00f0 jar\u00f0skj\u00e1lfta- og jar\u00f0su\u00f0sg\u00f6gnum fr\u00e1 ICEARRAY hr\u00f6\u00f0unarm\u00e6lafylkingunum \u00ed Hverager\u00f0i og \u00e1 H\u00fasav\u00edk, en \u00fe\u00e6r einkennast af umtalsver\u00f0um breytileika \u00e1 einkennum og umfangi yfirbor\u00f0shreyfinga \u00ed jar\u00f0skj\u00e1lftum yfir afar stuttar vegalengdir (tugi til hundru\u00f0i metra). Hlutfallsgreining t\u00ed\u00f0nir\u00f3fa s\u00fdndi a\u00f0 kerfisbundin m\u00f6gnunar\u00e1hrif \u00e1 tveimur sveiflut\u00ed\u00f0num eru til sta\u00f0ar \u00e1 \u00feeim hluta Hverager\u00f0is sem stendur \u00e1 hrauni vegna vi\u00f0sn\u00fanings bylgjuhra\u00f0a \u00ed m\u00fdkri setl\u00f6gum undir tveimur hraunl\u00f6gum. Greining \u00e1 m\u00f6gnun \u00fat fr\u00e1 hef\u00f0bundnu tveggja fr\u00edgr\u00e1\u00f0u sveiflukerfi s\u00fdnir a\u00f0 sveiflut\u00ed\u00f0nirnar eru bein aflei\u00f0ing \u00feessa vi\u00f0sn\u00fanings \u00ed hra\u00f0a. Fyrir hef\u00f0bundin jar\u00f0l\u00f6g var l\u00edkan af bylgju\u00fatbrei\u00f0slu \u00ed lagskiptu efni nota\u00f0 til a\u00f0 meta efniseiginleika jar\u00f0laganna og \u00f3vissu \u00feeirra \u00fat fr\u00e1 andhverfua\u00f0fer\u00f0um og Bayes\u00edskri t\u00f6lfr\u00e6\u00f0i. Mismuna\u00e1hrif jar\u00f0skj\u00e1lftahreyfinga voru greind me\u00f0 n\u00fdju stigskiptu Bayes\u00edsku t\u00f6lfr\u00e6\u00f0il\u00edkani sem \u00e1kvar\u00f0ar framlag jar\u00f0skj\u00e1lftaupptaka, \u00fatbrei\u00f0slu\u00e1hrifa, og sta\u00f0bundinna \u00e1hrifa \u00e1 jar\u00f0skj\u00e1lftahreyfingarnar. Ni\u00f0urst\u00f6\u00f0urnar s\u00fdna a\u00f0 hve miklu leyti fj\u00f6lbreytt jar\u00f0fr\u00e6\u00f0i og jar\u00f0skj\u00e1lftauppt\u00f6k hafa \u00e1hrif \u00e1 breytileika jar\u00f0skj\u00e1lftahreyfinganna, og \u00f3vissugreiningin s\u00fdnir hversu markt\u00e6kur munurinn er. \u00cd jar\u00f0skj\u00e1lftunum \u00e1 Su\u00f0urlandi \u00e1ri\u00f0 2008 er breytileikinn \u00ed yfirbor\u00f0shreyfingum \u00ed Hverager\u00f0i rakinn til jar\u00f0skj\u00e1lftaupptakanna fyrst og fremst. M\u00f6gnunin og breytileiki hennar \u00ed Hverager\u00f0i voru b\u00e6\u00f0i minni en \u00e1 H\u00fasav\u00edk \u00ed jar\u00f0skj\u00e1lftunum undan Nor\u00f0urlandi 2012-2013, en \u00fear s\u00fdndu ni\u00f0urst\u00f6\u00f0ur a\u00f0 sta\u00f0bundnar jar\u00f0fr\u00e6\u00f0ilegar a\u00f0st\u00e6\u00f0ur h\u00f6f\u00f0u afgerandi og meiri \u00e1hrif. \u00cd \u00feessari ranns\u00f3kn hefur n\u00fdjum e\u00f0lisfr\u00e6\u00f0ilegum og t\u00f6lfr\u00e6\u00f0ilegum l\u00edk\u00f6num veri\u00f0 beitt vi\u00f0 greiningu \u00e1 jar\u00f0skj\u00e1lftahreyfingum og breytileika \u00feeirra yfir stuttar vegalengdir. Ni\u00f0urst\u00f6\u00f0urnar hafa hagn\u00fdta \u00fe\u00fd\u00f0ingu \u00fev\u00ed \u00fe\u00e6r s\u00fdna hva\u00f0a l\u00edk\u00f6n henta best eftir tegund jar\u00f0laga og greiningara\u00f0fer\u00f0irnar skilgreina \u00f3vissu betur en \u00e1\u00f0ur hefur veri\u00f0 gert. Sl\u00edkt er forsenda b\u00e6tts mats \u00e1 jar\u00f0skj\u00e1lftav\u00e1 \u00ed bygg\u00f0 \u00e1 \u00cdslandi, sem hefur bein \u00e1hrif \u00e1 mat \u00e1 \u00e1h\u00e6ttu af v\u00f6ldum jar\u00f0skj\u00e1lfta, b\u00e6tingu jar\u00f0skj\u00e1lftah\u00f6nnunar og hagkv\u00e6mni bygg\u00f0askipulags.<\/p>\n

Um doktorsefni\u00f0<\/strong><\/p>\n

Sahar Rahpeyma er f\u00e6dd \u00e1ri\u00f0 1986 \u00ed Arak \u00ed \u00cdran. H\u00fan lauk grunnpr\u00f3fi \u00ed byggingarverkfr\u00e6\u00f0i \u00e1ri\u00f0 2009 og meistarapr\u00f3fi me\u00f0 h\u00e6stu einkunn \u00ed jar\u00f0skj\u00e1lftaverkfr\u00e6\u00f0i \u00e1ri\u00f0 2012 fr\u00e1 Arak h\u00e1sk\u00f3lanum \u00ed \u00cdran. Eftir meistarapr\u00f3f sinnti h\u00fan stundakennslu og var me\u00f0lei\u00f0beinandi meistaranema vi\u00f0 Arak h\u00e1sk\u00f3la, \u00e1samt \u00fev\u00ed a\u00f0 birta ranns\u00f3knir s\u00ednar \u00ed virtum al\u00fej\u00f3\u00f0legum t\u00edmaritum. Doktorsn\u00e1m hennar \u00ed jar\u00f0skj\u00e1lftaverkfr\u00e6\u00f0i vi\u00f0 H\u00e1sk\u00f3la \u00cdslands var hluti af \u00f6ndvegisverkefni Rann\u00eds sem h\u00f3fst \u00e1ri\u00f0 2014. Samhli\u00f0a \u00fev\u00ed hefur h\u00fan s\u00f3tt n\u00e1mskei\u00f0 \u00ed Bayes\u00edskri t\u00f6lfr\u00e6\u00f0i vi\u00f0 H\u00e1sk\u00f3la \u00cdslands og n\u00e1mskei\u00f0 \u00ed jar\u00f0skj\u00e1lftaverkfr\u00e6\u00f0i vi\u00f0 H\u00e1sk\u00f3lann \u00ed Patras \u00ed Grikklandi. Eftir doktorsn\u00e1mi\u00f0 liggja fj\u00f3rar t\u00edmaritsgreinar og fimm ritr\u00fdndar r\u00e1\u00f0stefnugreinar, auk margra fyrirlestra og veggspjalda \u00e1 r\u00e1\u00f0stefnum. H\u00fan hefur hloti\u00f0 vi\u00f0urkenningu fyrir fram\u00farskarandi framlag nemanda \u00e1ri\u00f0 2016 \u00e1 r\u00e1\u00f0stefnu jar\u00f0skj\u00e1lftafr\u00e6\u00f0af\u00e9lags Bandar\u00edkjanna, doktorsstyrk Eimskipaf\u00e9lagsins til eins \u00e1rs \u00far Ranns\u00f3knarsj\u00f3\u00f0i H\u00e1sk\u00f3la \u00cdslands \u00e1ri\u00f0 2017, og hefur hloti\u00f0 tvo fer\u00f0astyrki fr\u00e1 Erasmus+ \u00e1\u00e6tluninni til a\u00f0 stunda ranns\u00f3knir vi\u00f0 H\u00e1sk\u00f3lann \u00ed Patras og Norsar jar\u00f0skj\u00e1lftafr\u00e6\u00f0istofnunina \u00ed Noregi.<\/p>\n

Vi\u00f0bur\u00f0ur \u00e1 Facebook<\/a><\/strong><\/p>\n<\/div><\/div>","protected":false},"featured_media":1732,"template":"","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"_phd_date_start":"2018-11-23T13:00:00+00:00","_phd_date_end":"2018-11-23T15:00:00+00:00","_phd_location":"A\u00f0albygging H\u00e1t\u00ed\u00f0arsalur","_phd_admission":"Allir velkomnir","_phd_thesis_title":"Greining \u00e1 sta\u00f0bundnum jar\u00f0skj\u00e1lfta\u00e1hrifum \u00fat fr\u00e1 \u00fe\u00e9ttum hr\u00f6\u00f0unarm\u00e6lanetum \u00ed bygg\u00f0 \u00e1 \u00cdslandi","_phd_source_url":"https:\/\/gamli.hi.is\/vidburdir\/doktorsvorn_i_byggingarverkfraedi_saharalsadat_rahpeyma","_phd_source_node_id":"312850","_phd_source_type":"vidburdir","_phd_member_id":419,"footnotes":""},"phd_school":[98,93],"phd_discipline":[100],"class_list":["post-6071","phd_defence","type-phd_defence","status-publish","has-post-thumbnail","hentry","phd_school-umhverfis-og-byggingarverkfraedideild","phd_school-verkfraedi-og-natturuvisindasvid","phd_discipline-phd-i-byggingarverkfraedi"],"_links":{"self":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6071","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence"}],"about":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/types\/phd_defence"}],"version-history":[{"count":0,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_defence\/6071\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media\/1732"}],"wp:attachment":[{"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/media?parent=6071"}],"wp:term":[{"taxonomy":"phd_school","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_school?post=6071"},{"taxonomy":"phd_discipline","embeddable":true,"href":"https:\/\/phd.hi.is\/en\/wp-json\/wp\/v2\/phd_discipline?post=6071"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}