SOLUTION
◉ Max spacing of crosswires in ladder-type joint
reinforcement and connection point of crosswires to longitudinal
truss-type reinforcement wires. Answer: 16 in, 2006 IBC
◉ Min distance that wire wall ties must be embedded
into the mortar bed of solid masonry units or solid-grouted hollow
units. Answer: 1 1/2"; 2006 IBC
◉ Min length of end support for a lintel. Answer: 4 in, 2006 IBC
◉ The use of Z-type cavity wall ties is not permitted in the
construction
of. Answer: Ungrouted hollow unit masonry, ACI 530
◉ Wythes not bonded by headers must be bonded with wall ties
spaced at a max horizontal distance of. Answer: 24 in, ACI 530, S-21,
S3.4C
, ◉ Max tolerance from the required location allowed when placing
vertical reinforcing bars along wall length. Answer: 2in, ACI 530
◉ Max area of wall permitted to be bonded for each tie when
adjacent wythes of masonry are bonded with adjustable wall ties.
Answer: 1.77, 2006 IBC
◉ Type of shear reinforcement that must be anchored around
vertical reinforcing bars in grouted brick masonry shear walls.
Answer: standard hook, RGBM ED14
◉ Min thickness of coarse grout required between
steel reinforcing bars and the masonry unit. Answer: 1/2 in, RCMCI
ED, S1.13.3.5.
◉ Welds used to splice steel reinforcing bars must conform to these
provisions. Answer: AWS D 1.4, 2006 IBC
◉ Mechanical connectors shall be used for splicing steel reinforcing
bars larger than. Answer: #9; 2006 IBC 2107.6
◉ When epoxy coated bars are used, lap lengths must be increased
by. Answer: 50%; 2006 IBC 2107.5