Why is the term 'girder' used in construction?

The term 'girder' is used in construction primarily to refer to a horizontal support beam that plays a crucial role in the framework of a building. Girders are designed to support the weight of the structure above them, transferring loads from the upper elements, such as floors or roofs, down to the vertical supports, like columns or walls. By providing stability and integrity to the overall structure, girders are essential in ensuring that buildings can withstand various forces, including gravity and lateral loads from wind or seismic activity. The correct understanding of the girder's function is vital for builders and architects in designing safe and functional structures.