风灾致村镇建筑损失评估及台风灾害管理系统

为了对风灾作用下村镇建筑的损失进行评估,提出了风灾损失评估方法.分析了结构类型、保存完好程度、建筑面积密度、不同构件间相互作用等因素对建筑损失的影响程度,对围护结构及主体承重结构分别建立风速和风向的破坏矩阵,定义了群体低矮民居建筑的破坏等级,并建立了相关的建筑直接损失评估模型.为了将风灾评估方法应用到实际情形中,对ArcGIS进行二次开发,建立了台风灾害管理系统,模拟结果与相关灾情统计对比结果表明,提出的建筑损失评估方法综合全面,管理系统具有一定的可行性.

Loss assessment of rural buildings under wind disaster and typhoon disaster management system

In order to evaluate the loss of rural buildings under the action of wind disaster, a damage assessment method for low-rise buildings was proposed. The influences of various factors, including structural type, preservation degree, building area density and the interaction among different structural components etc., on building loss were analyzed. Damage matrixes of wind speed and wind direction were established for the envelope and the main load-bearing structures, respectively. The damage level of low-rise residential buildings was defined, and a direct loss assessment model of related buildings was established. Furthermore, in order to apply the wind disaster assessment method to actual situation, a secondary development of ArcGIS was carried out, and a typhoon disaster management system was established. Result comparison between the simulation data and the related disaster statistics shows that the as-proposed construction loss assessment method is entirely comprehensive and applicable to some degrees.