Astm specifies a size differential for wires being weld ed together to assure adequate weld shear strength.
Welded wire fabric area chart.
2 ft area in.
By w number by steel wire gauge longit.
Current designation by w number.
Grade 60 steel area 40 000 60 000 x grade 40 steel area.
Welded wire fabric of fers a saving of around 14 55 steel.
The application of welded wire fabric that first comes to mind for most engineers and contractors is the reinforcement of nonstructural slabs on grade with rolls of building fabric this is usually light mesh designated 6x6 w1 4xw1 4.
Historical data on wire triangular wire fabric mesh and welded wire concrete reinforcement wwr 2014 9 pages this tech fact will give guidance to design professionals contractors and building bridge owners on the physical and mechanical properties of older wire and wire mesh and welded wire reinforcement.
In the smooth fabric the smaller w i r e should have a cro s s s e c t i o n a l a r ea equal to at least 40 percent of the area of the larger wire.
Rolls 6x6 w1 4x 1 4 6x6 10x10.
With de f o r med fabric anchorage is deve l oped by virtue of the deform a t i o n s as well as at the welded intersection.
Concrete reinforcement style designation steel area weight new designation old designation sq.
The bonding area of a close mesh fabric with welded joint s is several times greater than manually assembled rebars since the mechanical anchorage action of cross welded joints offers much superior pull out strength.
For welded wire reinforcement plain and deformed the smaller wire must have an area of 40 percent or more of the area of the larger wire.
The steel at the welded intersections.
The first pair of numbers indicates the spacing of the wires in inches.
In deformed fabric the.
The following chart has been developed to show equivalent yield strengths for grade 40 rebar grade 60 rebar and 65 k s i.
Common stock styles of welded wire fabric style designation.
For weld shear strength at the wire intersections are shown in table 2.
Common stock styles of welded wire fabric exact w number size for 8 gauge is w2 1.
Exact w number size for 2 gauge is w5 4.
The equivalent steel areas are directly proportional to the yield strengths therefore.
2 ft area in.