Urban building group earthquake damage high-realism display method

Abstract

The invention provides an urban building group earthquake damage high-realism display method, and belongs to the technical field of earthquake damage simulation and prediction. The urban building group earthquake damage high-realism display method includes the steps: utilizing a multi-freedom structure model to perform non-linear time-procedure analysis of the urban large building group under theeffect of earthquake, and obtaining the earthquake response data (including the level of earthquake damage, displacement, speed, and the like) of each floor of the building; on the above basis, implementing dynamic visualization of building displacement in a three-dimensional graphic engine, based on refined earthquake damage data; and finally, designing a simulation algorithm integrating a physical engine, a graphic engine and time-procedure analysis to represent the physical process, with sense of reality, of collapse of the building. The urban building group earthquake damage high-realism display method takes a real medium-sized city in China as a calculating example to apply, and can display the overall process of urban building group earthquake damage, with sense of reality. The urbanbuilding group earthquake damage high-realism display method provides a good visualization technology for urban virtual earthquake emergency manoeuvre.

Description

Technical field [0001] The invention relates to the technical field of earthquake damage simulation prediction, in particular to a high-fidelity display method for earthquake damage of urban building groups. Background technique [0002] The population density and property density of cities are very high, especially if a strong earthquake occurs in a very large city, it will inevitably cause serious casualties and property losses. In order to reduce the serious impact of the earthquake on the city, city-level virtual emergency drills can be used to improve rescue capabilities and prevent and control them in advance. However, virtual emergency drills require a highly realistic visualization method of the seismic response of urban buildings. [0003] In terms of the high-fidelity display of the earthquake damage of urban buildings, many domestic and foreign researchers have carried out research on the display of earthquake damage based on 3D city models. For example, York University...

AI Technical Summary

Problems solved by technology

The urban earthquake damage visualization results of these studies are all static, and the earthquake damage prediction models used are often too simple to obtain detailed information on building damage, so the earthquake damage display effect is not realistic enough

Images