What is the primary construction characteristic of precast concrete structures?

The primary construction characteristic of precast concrete structures is that they are typically designed with shoring that is constructed upward from the foundation. Precast concrete systems involve manufacturing concrete elements in a factory setting, which are then transported and assembled on-site. During this process, shoring provides the necessary support while the precast components are placed, ensuring stability and safety during construction.

While durability against seismic events, temperature resistance, and weight distribution are important factors in structural engineering, they do not specifically define the construction methodology associated with precast concrete. Shoring directly relates to how precast elements are installed and supported, making it a defining characteristic of the structural assembly process.