?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.relation=http%3A%2F%2Fd-scholarship-dev.library.pitt.edu%2F21627%2F&rft.title=Structural+Performance+of+Bamboo%3A+Capacity+under+Sustained+Loads+and+Monotonic+Bending&rft.creator=Gottron%2C+Jennifer&rft.description=STRUCTURAL+PERFORMANCE+OF+BAMBOO%3A+%0D%0ACAPACITY+UNDER+SUSTAINED+LOADS+AND+MONOTONIC+BENDING+%0D%0AJennifer+M.+Gottron%2C+M.S.%0D%0AUniversity+of+Pittsburgh%2C+2014%0D%0A%0D%0AThe+exploration+of+the+structural+material+properties+of+bamboo+is+motivated+by+its+potential+to+serve+as+an+alternative+sustainable+building+material.+Although+bamboo+has+been+used+as+a+building+material+for+thousands+of+years%2C+the+majority+of+applications+do+not+conform+to+any+standard+design+criteria+and+are+therefore+considered+to+be+non-%2C+or+at+best+marginally-engineered+construction.+Nonetheless%2C+as+a+result+of+the+composite-like+structure+of+bamboo%2C+its+mechanical+properties+are+generally+superior+to+those+of+other+natural+materials+such+as+timber.+The+current+research+addresses+the+capacity+of+bamboo+under+sustained+loads+and+monotonic+bending.+The+sustained+loads+intend+to+develop+an+understanding+of+the+material+creep+behavior.+The+effects+of+creep+on+radially-cut+clear+bamboo+specimens+will+be+evaluated+based+on+a+series+of+parameters%2C+mainly+the+ratio+of+the+ultimate+load+applied+to+specimen+and+the+orientation+of+the+specimen+with+respect+to+the+fiber+gradation.+Specimens+were+subject+to+sustained+loads+for+a+period+of+90+days.+Following+10+days+of+recovery%2C+the+residual+capacity+of+the+creep+specimens+was+determined.+Significant+creep-induced+plastic+deformations+and+strains+were+observed+in+the+present+work.+The+orientation+of+the+specimen+was+found+to+have+a+significant+effect+on+both+the+creep+behavior+and+residual+strength+of+creep-conditioned+specimens.+The+results+showed+that+bamboo+loaded+with+the+outer+culm-wall+in+tension+(OT)+generally+exhibited+a+greater+modulus+of+rupture+but+reduced+apparent+modulus+of+elasticity+and+residual+strength+when+compared+to+specimens+with+outer+culm-wall+in+compression+(OC).+Additionally+the+effects+of+creep+conditioning+appear+to+have+a+strengthening+effect+on+the+residual+capacity+of+OC+specimens+and+a+detrimental+effects+on+OT+specimens.+The+results+of+the+creep+experiments+met+or+exceeded+the+ASTM+6815+acceptance+criteria+for+wood+suggesting+that+for+the+structural+design+of+bamboo%2C+a+load+duration+factor+similar+to+that+used+for+wood+may+be+employed.+%0D%0AWhile+the+creep+tests+explored+only+one+species+of+bamboo%2C+the+culm+bending+tests+investigated+the+longitudinal+shear+capacity+of+two+species.+Longitudinal+splitting+often+dominates+failure+in+bamboo+components%3B+longitudinal+splitting+in+bamboo+is+thought+to+be+the+result+of+a+mixed-mode+shear+failure+which+is+influenced+by+both+Mode+I+tension+and+Mode+II+shear+failures.+The+research+aimed+to+understand+the+mixed-mode+shear+capacity+of+full-culm+bamboo+under+four+point+bending+by+testing+standard+span+culms+with+longitudinal+notches+at+midspan+and+unnotched+short+span+culms.+Each+of+the+culm+bending+tests+is+designed+to+provoke+a+mixed-mode+shear+failure.+The+data+demonstrated+a+reduction+in+the+pure+Mode+II+capacity+of+culms+in+the+presence+of+Mode+I+component+of+distortion.+Each+of+the+experiments+reported+maintains+the+ultimate+goal+of+standardization%3B+the+data+collected+and+results+provided+intend+to+aid+in+the+development+of+a+standardized+design+criteria+for+bamboo+structures.%0D%0A&rft.date=2014-09-19&rft.type=University+of+Pittsburgh+ETD&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.language=en&rft.identifier=http%3A%2F%2Fd-scholarship-dev.library.pitt.edu%2F21627%2F4%2Fgottronj_etd2014.pdf&rft.identifier=++Gottron%2C+Jennifer++(2014)+Structural+Performance+of+Bamboo%3A+Capacity+under+Sustained+Loads+and+Monotonic+Bending.++Master's+Thesis%2C+University+of+Pittsburgh.++++(Unpublished)++