Construction Load Analysis for Concrete Structures

Abstract

A common practice in multistory reinforced concrete building construction is to shore a freshly placed concrete floor on several previously cast floors. The construction loads on the supporting floors may exceed the slab design loads during maturity, especially when the design live load is small compared with the dead load. A few studies have been conducted to analytically model the construction loading process. However, these early models are based on a number of simplifying assumptions. The objective of this paper is to develop a three‐dimensional computer model which can be used to evaluate the effect of variations of the foundation rigidity, column axial stiffness, slab aspect ratio, and shore stiffness distribution on the values of the shore loads and slab moments.