(p711) Development of Efficient Design Principles for King Piles of Combined Steel Piling Walls

摘要

The most common structural steel solution in the deep water harbor construction is the combined steel piling wall,which consist of up to 45 m long (stability is at risk) H-shaped bearing piles and Z-shaped intermediate piles. Withthe transition from the national to the European standard, the stability design methods for flexural buckling and lateraltorsional buckling were changed and merged into a combined stability verification method. Sample calculations haveshown that this leads to an increase of 15 to 20% of the steel weight of harbor construction. The aim of this projectwas the assessment of previously unrecognized influence of soil and the development of ways to include theseeffects into the calculation.This publication focusses on the simplified criteria developed to quickly exclude stability phenomena while taking intoaccount the effects of the soil. For the cases in which the criteria are not fulfilled, the publication presents economicsolutions for considering the embedment of the king piles by soil in the stability design process.