Section R. 408.42523 - Vertical slip formsRule 2523.
(1) Field operations for vertical slip forms shall be under the supervision of a qualified person. The qualified person shall be present on the deck during slipping operations.(2) A lift shall proceed steadily and uniformly and shall not exceed the predetermined rate of lift.(3) The steel rods or pipe on which the jacks climb or by which the forms are lifted shall be specifically designed for such climbing or lifting. Such rods shall be adequately braced if they are not encased in concrete.(4) Jacks and vertical supports shall be positioned so that the vertical loads are distributed equally and do not exceed the capacity of the jacks.(5) The jacks or other lifting devices shall be provided with mechanical dogs or other automatic holding devices to prevent slippage due to the failure of the power supply of the lifting mechanism.(6) Vertical lift forms shall be provided with scaffolding or work platforms that completely encircle the area of placement. The scaffolds shall be as prescribed in Construction Safety Standard Part 12 "Scaffolds and Scaffold Platforms," as referenced in R 408.42503.(7) Lateral and diagonal bracing of vertical slip forms shall be provided to prevent excessive distortion of the structure during the jacking operation.(8) During a jacking operation, a qualified person shall maintain the form structure in line and plumb.Mich. Admin. Code R. 408.42523
1980 AACS; 1989 AACS; 2003 AACS; 2016 MR 16, Eff. 8/17/2016