Design aspects of lifting devices for concrete members (in the U.N. B. Civil Engineering Structures Laboratory)

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dc.contributor.advisorBischoff, Peter
dc.contributor.advisorH., Bischoff
dc.contributor.authorCormier, Scott
dc.date.accessioned2023-06-07T20:34:38Z
dc.date.available2023-06-07T20:34:38Z
dc.date.issued1996
dc.description.abstractRe c e n t l y a f e w a c c i d e n t s h a v e o c c u r e d i n t h e U . N . B . C i v i l E n g i n e e r i n g S t r u c t u r es L a b o r a t o r y d u e t o p o o r l i f t i n g p r o c e d u r e s o f l a r g e c o n c r e t e t e s t m e m b e r s . T h e s e a c c i d e n ts h a v e r e s u l t e d i n u n s a f e w o r k i n g c o n d i t i o n s . T h e r e f o r e , t h e r e w a s a n e e d t o i m p r o v e t he e x i s t i n g l i f t i n g p r o c e d u r e s. T h e b e n t r e i n f o r c i n g b a r t y p e i n s e r t w a s t e s t e d i n o r d e r t o c o m p a r e t h e r e s u l ts o b t a i n e d f o r u l t i m a t e f a i l u r e l o a d w i t h t h e f a i l u r e l o a d f r o m t h e l a s t a c c i d e n t . I t w as c o n c l u d e d t h a t b e n t r e i n f o r c i n g b a r s s h o u l d n o t b e u s e d d u e t o t h e i r u n p r e d i c t a b l e f a i l u re l o a d s a n d b r i t t l e n e s s. T h e d r o p - i n e x p a n s i o n a n c h o r s t h a t are p r e s e n t l y b e i n g u s e d n e e d t o b e i m p r o v e d . S w i v e l h o i s t rings that t h r e a d i n t o t h e a n c h o r w o u l d w o r k b e s t . T h i s t y p e o f l i f t i n g d e v i ce w i l l a l l o w t h e c h a i n h o o k s t o b e a t t a c h e d s e c u r e l y. A s p r e a d e r b e a m w a s d e s i g n e d i n o r d e r t o s i m p l i f y t h e h a n d l i n g a n d l i f t i n g o f l a r ge a w k w a r d m e m b e r s t h a t a r e e n c o u n t e r e d i n t h e S t r u c t u r e s L a b o r a t o r y . T h e s p r e a d e r b e am h a s f i v e c o n n e c t i o n s w e l d e d t o t h e b o t t o m f a c e o f t h e b e a m t h a t a r e e v e n l y s p a c e d a nd a l l o w f o r d i f f e r e n t p o i n t s o f l o a d i n g t o b e c o n s i d e r e d f o r v a r i o u s s i z e m e m b e r s . T he v a r i o u s c o n n e c t i o n s a r e c h o s e n f o r t h e s m a l l e s t p o s s i b l e a n g l e t o t h e v e r t i c a l i n t h e c h a i n s. T h e a n g l e i n t h e l i f t l i n e s ( c h a i n s ) d e t e r m i n e s t h e m a g n i t u d e d o f t h e f o r c e i n t h e l i f t l i n es ( c h a i n s ) . P r o p e r l i f t i n g p r o c e d u r e s u s e d i n c o n j u n c t i o n w i t h m a n u f a c t u r e d i n s e r t s w i l l i m p r o v e t h e l i f t i n g p r o c e d u r e s i n t h e C i v i l E n g i n e e r i n g S t r u c t u r e s L a b o r a t o r y . T h i s w i l l e n s u r e a s a f e w o r k i n g e n v i r o n m e n t.
dc.description.copyrightNot available for use outside of the University of New Brunswick
dc.description.noteCormier, Scott (1996). Design aspects of lifting devices for concrete members (in the U.N. B. Civil Engineering Structures Laboratory) . (Engineering Senior Report no. T-1704 1996). Fredericton : University of New Brunswick, Dept. of Civil Engineering T-1704 1996 1882/13078
dc.format.mediumelectronic
dc.identifier.urihttps://unbscholar.lib.unb.ca/handle/1882/34584
dc.language.isoen_CA
dc.publisherUniversity of New Brunswick
dc.rightshttp://purl.org/coar/access_right/c_16ec
dc.subject.disciplineCivil Engineering
dc.titleDesign aspects of lifting devices for concrete members (in the U.N. B. Civil Engineering Structures Laboratory)
dc.typesenior report
thesis.degree.disciplineCivil Engineering
thesis.degree.fullnameBachelor of Science in Engineering
thesis.degree.grantorUniversity of New Brunswick
thesis.degree.levelundergraduate
thesis.degree.nameB.Sc.E.

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