Design of scaffold shores for concrete buildings during construction

The aim of this paper is to offer some practical information for consideration in designing scaffold systems commonly used in concrete building construction. To this end, the content of this work is divided into two parts: the load part and the resistance part. In the load part, the loads during the process of concrete placing are discussed. Some field data have been collected. The intensities and distributions of the gravity loads are based on the investigations and calculations of 20 working sites. An amplification factor (A.F.) is also suggested to cover the effects caused by some seriously unsymmetrical concrete-placing paths. In the resistance part. the load-carrying capacities and the variations of the scaffolds are discussed. Some laboratory and field tests along with analytical work have been made. The unit structure which serves as a basic unit to develop the entire scaffold system is also suggested Based on the load and resistance information, a step-by-step design procedure for scaffold shore systems is proposed.