The vibration comfort caused by human action is an important part of the cantilever structure normal use limit state design.Cantilever structure under loading may produce a larger dynamic response,may cause discomfort of the body. for example, in a university building complex building expansion joints on both sides of the cantilever beam under the action of load will produce obvious vertical displacement,the appearance size, static load and dynamic load test were carried out, and the natural frequency and displacement amplitude were measured,and the comfort degree was evaluated.It provides the experimental basis for the vibration comfort evaluation of the housing suspension.