145 / 2024-02-20 16:33:43

Investigation of the effect of the tsunami on the safety of buildings equipped with swimming pools

Keywords: Nonhydrostatic model; dam-break wave; tsunami waves; swimming pools; wave-structure interaction; building safety

Abstract: In addition to the immediate risk to human lives, the fast currents of a tsunami traveling close to shore may substantially impact forces on structures, leading to structural damage or potential failures. The precision of estimating forces on buildings through the application of empirical formulas in the model, as commonly practiced by numerous scholars, is insufficient. In this paper, we extend our nonhydrostatic model to simulate the evaluation of dam-break wave transformation from the surf zone to land near the shore, and the model possesses the capability to precisely compute the forces exerted on the building by utilizing calculated nonhydrostatic pressures. The comparison between the physical and numerical modeling results of dam break wave propagation in dry and wet bed conditions downstream demonstrates that the model proposed in this paper is adept at simulating the deformation and propagation of dam-break waves in different states of downstream topography. Secondly, the comparison between the physical and numerical modeling results of the current and wave forces on bridge piers also proves the model's proficiency in precisely calculating the dam-break wave forces on structures.

Furthermore, accelerated economic development has led to higher expectations of a satisfying life. In coastal regions, Swimming pools have been strategically constructed in front of many buildings for people's entertainment. However, it is not known whether the pools affected the safety of the buildings when the tsunami run up nearshore. The model developed in this paper is designed to simulate the evaluation of a dam-break wave on ideal community terrain near shore and to analyze the impact of the pool on the buildings. The results show that the swimming pool would increase the force of water flow on buildings and affect building safety.