What is the purpose of restrained joints?

The purpose of restrained joints is to prevent movement, particularly in situations where pipes or structures need to maintain alignment and resist any forces that could cause displacement. In utility systems, restrained joints are often used to ensure that components like water or sewage pipes remain secure and do not shift due to internal pressures, external loads, or soil movement. By preventing movement, these joints help maintain the integrity of the pipeline system, reducing the risk of leaks, joint failure, or other structural issues. This is critical in utility maintenance work, as disruptions can lead to service interruptions and costly repairs.