Which types of materials are primarily used in rigid frame construction?

In rigid frame construction, the primary materials used are typically steel and precast concrete. This method relies on the strength and rigidity provided by these materials, allowing for the construction of structures that can withstand significant loads and resist lateral forces, such as wind or seismic activity. Steel offers high tensile and compressive strength, making it ideal for creating stable frameworks. Precast concrete enhances this further by allowing for quick assembly on site and consistent quality control since components are manufactured in a controlled environment.

While the other materials listed have their own advantages and applications within the construction industry, they do not provide the same level of performance in rigid frame systems. For instance, lightweight concrete may not have the same structural integrity as steel and precast concrete when considering load-bearing capabilities. Wood and heavy timber can be used in framed construction but are less common for rigid frames due to susceptibility to warping, insects, and fire. Brick and mortar, while strong in compressive strength, do not possess the tensile strength required for the rigid frame system and are not used as a primary structural component in this type of construction. Therefore, steel and precast concrete are the most appropriate materials for rigid frame construction due to their structural properties and suitability for high-performance buildings.