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As such, the displayed weight per each piece is a rounded version of the value that the calculator uses to determine the total weight. Since this calculation is intended for estimation purposes and is not intended to be precise, we round the values for output to the screen. Sometimes, the “Weight per each” that you see times the “Quantity” doesn’t equal the “Total weight”. For sizes that don’t actually exist in the marketplace, such as a 1-63/64″ diameter square nut, we make a guess based on what we know about the relationship between diameter and other dimensions. The calculator uses super-secret combinations of theoretical and sampled dimensions and weights to provide the results. We provide it as a resource for our customers, because the weight of a bolt or assembly is often needed when calculating shipping costs, or jobsite delivery requirements. This calculator can be used as an aid to help estimate the weight of bolts, nuts, and washers. If you have any questions or comments, please direct them About this Calculator What is it for? Values as accurate as possible, Portland Bolt makes no claims about accuracy andĪccepts no liability resulting from the use of the values provided on this page. To stay with the codes, we use this chart for every project.The values provided by this calculator are for estimation purposes only.Īctual weight values may vary from those provided here and, though we try to make the Refer to your reinforcing chart for your particular project. It doesn’t mean a size minimum that is determined by the engineering load.įor the major part of the shell of a small dome, use #2 Rebar, 12" on center. So if we are using 2 1/2" of concrete, we cannot separate the bars more than 12" on center. ![]() #SHOW ME A PICK OF 16MM AND 20 MM TIE BAR ONA STANDARD TIE CODE#The code states that bars cannot be separated more than five times the thickness of the concrete. Question: Why don’t we just spread the bars further apart? Answer: That works but does not meet code. The cost per pound will be more, but the cost per foot will be less. They can make deformed #2 bars that generally cost far less than #3 bars because #2 rebar weighs much less. But if you can’t find #2 or it costs as much as #3 and causes more hassle, use #3.Ĭompanies that furnish fence materials usually have #2 Rebar. We are instructing our engineers to utilize #2 Rebar where possible. But fortunately the Monolithic Dome is naturally such a perfect shape for strength that #2 Rebar works in many projects for which we previously used #3. Why is it hard to buy? Extremely little #2 Rebar is used because most concrete requires larger bars on many projects. Related: 4 Secrets Only the Most Stylish Men Know Rule 4: Pick the Perfect Tie. It needs to be deformed it needs to be grade sixty it needs all these wonderful things, but it is hard to buy. We like this 1.5-inch bar from The Tie Bar (15, ) paired with any color 2-inch tie from The Tie Bar. #SHOW ME A PICK OF 16MM AND 20 MM TIE BAR ONA STANDARD TIE DOWNLOAD#The #2 Rebar is 2/8" or 1/4" in diameter. Download Table FINAL HIGH YIELD STEEL TENSILE STRENGTH PROPERTIES High yield steel bar 10mm 12mm 16mm 20mm 25mm from publication: Comparative Analysis Of. Rebar comes in various sizes: #2, #3, #4, #5, #6 etc. Rebar SizingĪt Monolithic, we also pay close attention to rebar sizing. We want to keep the laps in the clear so the concrete can wrap around them. So whenever possible, we do not overlap the rebar tightly against itself. If it does not touch, we do an 18" overlap.Ĭonsidering the cost of rebar, these are vast differences. With #4 Rebar, if the bar splice will touch we do a 44" overlap. The engineering world has come up with some numbers to use for bar splices. The two bar diameters provide space for the concrete to go in, around, and between the bars and actually increase the strength. So the recommended way is to bring the bars together and overlap them, but leave at least two bar diameters between the bars. ![]() If you touch the two bars together as they overlap, it becomes more difficult for the concrete to go in and around the rebar, and the splice is not considered as strong. When splicing rebar we bring one piece to the other, overlap it a distance, and spray it in place with concrete. ![]() ![]() So we recommend that you stay away from welding. the use of wire ties on irregular sections and incidental construction if the. In fact when I first started, we overlapped and welded the bars together.īut it turns out that unless you’re using A706 rebar – which is very expensive – welding the rebar is not allowed. in accordance with the appropriate standard and the results submitted for. For years and years, we just overlapped the rebar and tied the bars together. Monolithic’s recommended procedure for splicing rebar has changed. ![]()
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