ABSTRACT
Taking the renovation project of the curtain wall of Wuhan Tianhe Airport T2 Terminal as the research object, the SAP2000 software is used to establish the finite element model of the cable structure of the point-supported glass curtain wall, and the rationality of the model is verified by combining construction monitoring data. Based on the construction simulation at the demolition stage, the three different partial demolition schemes of glass panels are compared with the total removal schemes of glass panels. Through the analysis of the displacement of the main truss, the displacement and internal force of the supporting rod, the safety evaluation, and optimization design of the established construction schemes are completed. The results show that the safety performance of the cable structure point-supported glass curtain wall has been improved, and the glass panel, main truss, and support rod meet the requirements of the standard bearing capacity and flexural deformation checking. Compared with the full removal scheme of the glass panel, the peak displacement of the main truss monitoring point along the-X direction of scheme 1 only increases by 1.7 mm, and the peak displacement of the support rod monitoring point along the-Z direction increases by 3 mm. The bending moments of No. 189 and 204 support rods increase by only 40% and 10.86%, which are far lower than the bending bearing capacity of members, and the internal forces of other rods are basically unchanged. With the continuous removal of the glass panel in schemes 2 and 3, the monitoring displacement is further reduced, and the internal force of the support rod is basically unchanged. Therefore, the partial demolition scheme of the glass panel is feasible, and scheme 1 can minimize the demolition cost.
