Safety Performance of One-Layer Shoring Systems Used in Construction

This paper presents the safety performance of one-layer shoring systems of wood and metal post-shores. The test results indicate that the base stiffness to ground of shores is 50 tonnes-cm/rad for wood post-shores and 70 tonnes-cm/rad for metal post-shores. The system critical loads increase with the numbers of strong shores, but are not affected by the numbers of leaning columns. For simplifying, the LeMessurier formula is used for strength computation of shoring systems. The critical loads of shoring systems increase linearly with the numbers of strong shores, but they are invariant with the positions of strong shores.