ABSTRACT
In the vibration frequency simulation of glass curtain walls, the extraction of natural vibration characteristics is inaccurate, which affects the simulation accuracy. A vibration frequency simulation method of monolayer cable net glass curtain wall is proposed. Assuming that all materials are in an elastic working state, the finite element model of the monolayer cable net structure of the glass curtain wall is established, and the natural vibration characteristics of the single-layer cable net are extracted according to the static balance equation of the curtain wall. When the fundamental frequency of the main structure is close to the cable network, the shape of the maximum displacement response curve of the cable network node is close to the calculated result of the monolayer cable network. According to the linear correlation between the bearing capacity of the curtain wall panel and natural frequency, the critical frequency of wind load is calculated. The concept of standard working conditions is introduced to simulate the vibration frequency of the glass curtain wall, and the structural vibration mode and frequency are obtained. Under the condition of an intact cable net, the relative error measured by this method is 0.162%, which is 0.172% and 0.244% lower than that of the vibration frequency simulation method of monolayer cable net glass curtain wall-based on target mode and cable interaction. This method can improve the simulation accuracy and is conducive to the monitoring of vibration frequency in practical engineering.
