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The cantilever structure will produce a large dynamic response under the vertical load, which will cause the user’s discomfort. Therefore, the vibration characteristics of the structure caused by the vertical load are an important part of the comfort design of the cantilever structure in the normal use limit state. This article takes the vertical displacement of a cantilevered balcony slab on one side of a project under load as an example, and builds a model in the nonlinear finite element software to calculate the structural displacement and the factors of the cantilever length and the tensile reinforcement, and the corresponding comfort evaluation is carried out, which provides a reference for the vibration comfort evaluation of the house cantilever structure.

In this paper, SAP2000 FEM simulation software has been used to carry out modal analysis, response spectrum analysis, time-history analysis and other seismic performance researches on the structural layout scheme and optimal number of floors of certain proposed reinforced concrete frame teaching building respectively built in exterior-corridor type and middle-corridor type in order to compare the seismic performance of the structure under different working conditions. According to the analysis, the seismic performance of middle-corridor type architecture is obviously better than that of exterior-corridor type architecture along with the increase of seismic fortification intensity, while the increase of storey height within certain scope does not affect the seismic performance of these two types notably, thus providing the theoretical basis for engineering design.