type-a-wall-tie
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type A wall tie
HB50
<cavity> tie, together with its fixings or anchorages, used to transfer face loads between skins (leaves) of a cavity wall while being capable of accommodating differential in-plane horizontal and vertical deflections between the attached elements
<remedial> tie manufactured for installation after a masonry leaf has been erected
<remedial> tie manufactured for installation after a masonry leaf has been erected
Remedial ties may be either cavity ties or masonry veneer ties and are usually used to replace defective ties, or where ties have been omitted.
<veneer> tie, together with its fixings or anchorages, used to transfer face loads from a veneer to a structural backing while being capable of accommodating differential in-plane horizontal and vertical deflections between the attached elements
HB50
wall tie not required to have specific seismic design characteristics
The requirements for the use of Type A ties are given in AS 3700. Type A wall ties are divided into three classes: cavity tie; remedial tie; veneer tie.