1. 毕业设计（论文）的内容和要求
{title}近几年来，全国范围内（中国国家电网公司和中国南方电网公司辖区）输电线路走廊区域日益受到山火侵扰，过火区域往往深入到塔基部分，对高压输电线路钢结构杆塔抗火等级提出预期要求，亟须避免出现杆塔结构元件出现渐变性结构失效、倾斜、变形甚至倒塌和电网瓦解等二次灾变事件，确保电力系统的安全性和可靠性。
就国内外高压输电线路山火火灾研究情况来看，大部分仍然以山火火灾形成环境分析为主，对高压输电线路钢结构杆塔抗火设计和耐火特性研究仍然处于空白状态。
由此，针对山火条件下高压输电线路钢结构杆塔抗火特性和倒塌危险等级判定开发数据分析模型，对高压输电线路钢结构杆塔的抗火特性进行模拟及预警设计，为各种高压、超高压和特高压等级别交直流输电线路钢结构杆塔的规划、设计和运行维护提供指导，确保电网的可靠和稳定运行。
基于分布式非接触传感器、多天线分集合成接收方式和远程服务器，通过Fluent分析山火时变空间温度场，利用ANSYS/ABAQUS/COMSOL等非线性有限元分析工具进行结构抗火检验，将两者耦合并实施动态模拟、阈值对比和图像拟合，建立针对高压输电线路走廊区域钢结构杆塔抗火特性及渐变性应力损益、应力形变和倒塌危险等级判定的理论计算、非线性有限元仿真模拟和数据分析模型，为各种塔形和各电压等级输电线路钢结构杆塔的规划、设计和运行维护提供指导，实现钢结构杆塔及智能电网安全运营和结构失效预警。
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