Calculating the anticipated movement with seismic expansion joint covers typically involves taking into account several factors, including the size and location of the joint, the type of building or structure, and the level of seismic activity that is anticipated in the area.
One common method for calculating anticipated movement is to use the following formula:
Anticipated Movement = Joint Width x Expected Movement Factor
The joint width refers to the width of the joint that the seismic expansion joint cover will be installed over, and the expected movement factor is a value that is determined based on the expected level of seismic activity in the area. This factor can be obtained from local building codes, seismic design guidelines, or other relevant sources.
For example, if the joint width is 2 inches and the expected movement factor is 0.1 inches, then the anticipated movement would be:
Anticipated Movement = 2 inches x 0.1 = 0.2 inches
This calculation provides an estimate of the maximum amount of movement that the seismic expansion joint cover should be able to accommodate, while still providing effective protection against seismic activity. However, it is important to note that other factors, such as the type of joint cover, the material used, and the installation method, may also affect the overall performance of the joint cover and should be considered in the selection and specification process.
When selecting your expansion joint cover or seal, contact an expansion joint manufacturer and provide them with the desired joint opening and movement requirement as provided by your engineering team or architect. They will help you select the best system for your project and condition.
