The art of Structural Engineering moves beyond simply framing a structure or laying out a site. It integrates engineering concepts with architectural visions to produce projects that are seamless. Projects that flow. Projects that delight. Structural Engineering is a field of engineering dealing with the analysis and design of structures that support vertical loads as well as horizontal forces. Structural engineering is usually considered a specialty within civil engineering, but it can also be studied in its own right. Structural engineers are most commonly involved in the design of buildings and large non-building structures but they can also be involved in the design of machinery, equipment, vehicles or any item where structural integrity affects the item's function or safety. Structural engineers must ensure their designs satisfy given design criteria on safety (e.g. Structures must not collapse without due warning) or serviceability and performance (e.g. building sway must not cause discomfort to the occupants). Buildings are made to endure massive loads as well as changing climate and natural disasters.