Type III steel sheet piles are designed in accordance with BS5950-1. It is well known that pile wall deflections reduce the bending moment in the pile shaft due to soil stress redistribution. If the deflection is large, the reduction in bending moment can be significant. A report on the pile wall design calculations is provided, along with the maintenance of a structural factor of 1.2 under static conditions and 1.1 under seismic conditions.

All Type III steel sheet piles can be interlocked with any other section in the Arcelor hot-rolled series (except straight-web sheet piles). The reduction factor ηd is defined as the ratio of the reduced bending moment under stiffness conditions to the theoretical bending moment and is determined empirically based on the design drawings. SP-III steel sheet piles are typically not provided with access holes. If required, access holes can be provided on the centerline of the section as shown in the figure below.

To determine the required structural capacity, the maximum yield strength of the material is used. The capacity of the main wall components is then compared with the load determined in the retaining wall. All SP-3 steel sheet piles, except for FSP, NS-SP, SKSP, TSP, and GSP, are interlockable. ISP, JSP, KSP, NKSP, JFE, and JFESP steel sheet piles have dimensions of 400x125x13. Because the steel pile material is elastic and deflects under lateral loads, moment reduction is permitted. Therefore, the aforementioned rigid beam solution would result in overdesign and, in some cases, significant deviations.

Specifications