[Structural Analysis Example] Simulation of Seismic Isolation Building Wall Collision Due to Earthquake

It has been demonstrated that it is possible to examine the acceleration occurring in buildings and the damage to the buildings!

We will introduce a case study of seismic response analysis of a seismic isolation nuclear power plant building and retaining wall ground model, taking into account the nonlinearity of the seismic isolation devices and concrete cracking when exceeding the design seismic motion. The ground is modeled using solid elements, the building with shell elements, the internal concrete (I/C) and foundation slab with solid elements, and the seismic isolation devices with beam elements. As a result, it was observed that in a wide area around the reactor containment vessel (PCCV), the surrounding building (REB), and the retaining wall, in-plane cracking occurred in both the in-plane 1 direction and in-plane 2 direction due to the collision between the building and the retaining wall. 【Analysis Settings】 ■ After self-weight loading, seismic waves were simultaneously input in two horizontal directions and vertically (2/3 of the horizontal) at the bottom surface of the lower foundation slab. ■ The input seismic waves used were three times the Japan Architectural Center simulated seismic wave BCJ-L2. *For more details, please refer to the related links or feel free to contact us.

Structural Analysis