The Structural Design and Analysis of a Symmetrical Twin-tower Conjoined Building with Vibration Absorber

Abstract

Throughout the ages, earthquakes have caused numerous instability and destruction of buildings. With the increasing of the height and volume of modern buildings, the seismic force on the buildings gradually increases. To avoid serious damage and ensure the safety, seismic design has become a crucial element in the analysis and design of the structure. In traditional seismic design, increasing stiffness of the building is usually adopted to reduce the structural response during an earthquake. This approach is usually costly, and the effect of practical application is not obvious, which could not fundamentally enhance the bearing capacity of the structure. Basing on existing researches, both theoretical and physical model of symmetrical, conjoined twin tower is made, meanwhile, the reasonable design using damping vibration absorber with the function of energy dissipation, utilizes the movement of additional weight to reduce vibration amplitude of main body structure. The use of shaking table test on the analysis and verification of bearing capacity of the model of symmetrical, conjoined twin tower with vibration absorber, improves the seismic performance of the building. It helps propel innovative and practical design ideas in structural seismic design of symmetrical conjoined twin tower.