Splicing

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Anonymous Poster #1	Splicing 04/29/2016 8:22 AM
	my question is i have a span of 27 meters footing tie beam and the available deformed bars here is from 6 meters up to 12 meters only.how can i splice the top rebars and bottom rebars
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PWSlack Guru Join Date: Jan 2007 Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on. Posts: 32175 Good Answers: 839	#1 Re: splicing 04/29/2016 8:28 AM
	Ask the Civils Designer. __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#2 Re: Splicing 04/29/2016 10:17 AM
	..." splice continuous top bars at mid span and splice continuous bottom bars at or near supports. "... ACI 318-11 covers this.... http://www.eng-tips.com/viewthread.cfm?qid=361292 __________________ All living things seek to control their own destiny....this is the purpose of life
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Anonymous Poster #1	#3 In reply to #2 Re: Splicing 04/29/2016 11:18 AM
	Yes thats the rule but the span is 27 meters if i used the 12mts long so its still short
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SolarEagle Guru Join Date: Mar 2007 Location: by the beach in Florida Posts: 33392 Good Answers: 1817	#4 In reply to #3 Re: Splicing 04/29/2016 11:59 AM
	Cut it and make a lap splice.... http://construction.about.com/od/Construction-Materials/fl/Rebar-Splice-How-to-Determine-Rebar-Splices.htm __________________ All living things seek to control their own destiny....this is the purpose of life
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CaptMoosie Guru Join Date: May 2009 Location: Red Hook, New York (Mid-Hudson River Valley) Posts: 4362 Good Answers: 179	#5 In reply to #3 Re: Splicing 04/30/2016 7:50 AM
	Use Mechanical Splicing devices and 3 pieces of rebar, so it really doesn't matter where you place the devices. __________________ "Veni, Vidi, Vici"; hendiatris attributed to Gaius Julius Caesar, 47 B.C.
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CaptMoosie Guru Join Date: May 2009 Location: Red Hook, New York (Mid-Hudson River Valley) Posts: 4362 Good Answers: 179	#6 Re: Splicing 04/30/2016 7:58 AM
	Take a look at Halfens "Bargrip" Coupler, as it doesn't involve threaded rebar ends, which I am not fond of, unless you have low stresses in the steel. http://halfen-moment.com/en/wp-content/pdf/Coupler.pdf __________________ "Veni, Vidi, Vici"; hendiatris attributed to Gaius Julius Caesar, 47 B.C.
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jmueller Guru Join Date: Jul 2006 Location: Eastern Kansas USA Posts: 1503 Good Answers: 128	#7 Re: Splicing 04/30/2016 11:10 PM
	The ACI 318 book is a good one to look at--a lap splice is generally acceptable, if tied together. Units of measure are US, not metric, but conversion should be straightforward. I believe part of that has been used in www.daytonsuperior.com/docs/default.../ds_rebar_splicing_hb.pdf?...44. The table on page 6 gives length of lap for various bar sizes and concrete strengths under two cases of bar spacing, with separate entries for top or bottom bars. --JMM
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Codemaster Guru Join Date: Jul 2005 Location: Stoke-on-Trent, UK Posts: 4496 Good Answers: 137	#8 Re: Splicing 05/04/2016 5:46 AM
	I seem to remember reading that if rebars are overlapped there is no need for couplers, as the bond strength, overlap lengthbar circumferencebond shear strength, can exceed the allowable bar tensile load. But maybe somebody will say that's wrong. __________________ Give masochists a fair crack of the whip
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Anonymous Poster (1); CaptMoosie (2); Codemaster (1); jmueller (1); PWSlack (1); SolarEagle (2)

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