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Reshores shall comply with the requirements of Sections 3305.3.6.1.1 through 3305.3.6.1.7.
3305.3.6.1.1 Secureness of Reshores
Reshores of wood or metal shall be screw adjusted or jacked and locked and wedged to make them secure. Reshores shall not be jacked or screwed so tightly that they preload the floor below or remove the normal deflection of the slab above.
3305.3.6.1.2 Reshores in Proximity to Unenclosed Perimeters
Reshores within 10 feet (3048 mm) of an unenclosed perimeter of a building shall be secured to prevent them from falling off the building.
3305.3.6.1.3 Wedges
Wedges shall not be used within 10 feet (3048 mm) of the façade or at such other locations as determined by the commissioner.
3305.3.6.1.4 Stresses
In no case shall shores be so located as to alter the pattern of stresses determined in the original structural analysis or to induce tensile stresses where reinforcing bars are not provided.
3305.3.6.1.5 Angle to Surface
Reshores shall be perpendicular to the surface that they are supporting.
3305.3.6.1.6 Adjusting Devices
Adjusting devices shall not be used if heavily rusted, bent, dented, rewelded or having broken weldments or other defects.
3305.3.6.1.7 Metal Shoring and Accessory Parts
Metal shoring and accessory parts shall be fully operative when in use.

Related Code Sections

1906.6.1.6 Concrete, Adjusting Devices
Adjusting devices shall not be used if heavily rusted, bent, dented, rewelded or having broken weldments or other defects ...