Lateral Restraint Tie

There are many buildings where walls are in danger of moving or collapse because of inadequate lateral restraint of the wall to floor joists, ceiling joists or roof structure.The problem can be caused by one or a combination of several factors. For example: -A decrease of wall stiffness and resistance to buckling and wind loading, can occur, with wall tie corrosion or insufficient wall ties installed during construction. -Re-roofing using heavier materials would give increased vertical loads which could exceed the load-carrying capacity of the wall. -The omission of lateral restraints or their failure in service can magnify the effects of other contributory causes. Existing remedial systems involve disturbance of building occupants to provide access to the floor joists in order to fix bent steel straps to the wall and the joists.This disruptive and time consuming fixing method causes aggravation to the building occupant and is therefore unsatisfactory.

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