基于GIS的城市建筑群动力响应分析模型建模方法研究

建筑群震害响应模拟是现代城市震害防御管理工作的基础。高效的建筑信息获取方法与科学合理的建筑群动力响应分析模型建模方法是快速、准确震害模拟的前提，也是震害防御科学管理、迅速决策和精准施策的必要保障。本文提出利用GIS平台进行矢量地图数据采集、多图层空间叠加分析及地形分析；结合我国各地市政府数据开放平台，获取建筑使用功能、建成年代、结构类型及场地类别等基本信息；在此基础上建立一套基于真实城市信息的建筑群动力响应分析模型建模方法。该方法操作简便、模型精度高并且建模速度快，可实现城市区域大规模建筑群高效建模。针对成都市某街区建筑群进行数据采集和模型建立，验证了该方法的可行性和有效性。

Research on a GIS-based method of model establishment for seismic response analysis of urban building groups

Seismic response simulation of building groups is the basis for seismic disaster prevention in modern cities. Efficient methods of obtaining building information and scientific methods of establishing building models for dynamic response analysis are required for fast and accurate seismic damage simulations, ensuring scientific, quick and precise enforcement of policies in earthquake disaster prevention work and management. This paper proposes a method of creating calculation models for seismic response analysis of urban building groups based on real city information. Modeling parameters are determined using multi-spatial layer overlapping techniques and topographic analysis on GIS-based data collected from vector city maps, combined with public open data available on local government websites. The proposed method enables easy implementation, accurate modeling, and fast model creation, leading to highly efficient model building for large-scale regional urban building groups. Building groups within a block in Chengdu are used as an example of data collection and model creation to demonstrate the feasibility and effectiveness of the presented method.