Shoreline Zee Lightweight Steel Sheet Piles LZ-8 and LZ-7 are very popular in North and South America. They must be secured during installation to prevent accidental displacement by wind, equipment, or personnel. The entire base of the precast module (including the area of any unit areas) is used to determine the contact pressure at the base of the wall. Shoreline Steel offers Zee Lightweight Steel Sheet Piles in ASTM-A-572 / GR.50 / ASTM-A-328 / bare or galvanized finishes. They are capable of supporting the maximum potential load, but must not be less than 200 lbs. Contact pressure is assumed to vary linearly. Mark "Hole" or "Cover" with high-visibility paint to warn of the hazard. If a cover needs to be removed, a supervisor should be posted at the opening until it is replaced.
The length of the lightweight cold-formed steel sheet pile should be equal to LZ-5% and LZ-3% of the clear distance between the piles of the "T" module. Monitors shall warn persons entering hazardous areas and protect them from exposure to fall hazards, but shall have no other duties. All Zee Light Steel Sheet Piles listed are manufactured in the USA. Zee Light Steel Sheet Piles Cross Section.
Any monitor or employee within six (6) feet of an opening shall use a 100% fall protection system. The allowable capacity of precast modular walls shall be determined using a minimum safety factor of 3.0 applied to the first set of loads applied to the ultimate capacity. When determining the external stability of "T" shaped modular walls, the bottom width B of each layer shall be reduced to account for the fact that the honeycomb structure is open on the back side. W. Conklin Steel and Piling Equipment and Meever USA Southeast supply Zee Light Steel Sheet Piles. In order to use a cordon and safety monitoring system, the contractor must first demonstrate in writing to the engineer and construction safety that the use of a fall protection or restraint system is not feasible.
Specifications
Section | Dimensions | Mass | Moment | Modulus | |||
Width | Height | Thickness | Pile | Wall | |||
w | h | t/s | |||||
In | In | In | Lbs/ft | Lbs/ft2 | In4/ft | In3/ft | |
LZ-8 | 24 | 4.5 | 0.164 | 16.6 | 8.3 | 8.1 | 3.6 |
LZ-7 | 24 | 4.5 | 0.179 | 18.2 | 9.1 | 8.9 | 3.9 |
LZ-5 | 24 | 4.5 | 0.209 | 21.2 | 12.6 | 10.4 | 4.6 |
LZ-3 | 24 | 4.5 | 0.239 | 24.6 | 12.3 | 11.8 | 5.2 |
LZ-250 | 24 | 4.5 | 0.250 | 25.6 | 12.8 | 12.4 | 5.4 |