基于实验和模拟的II型垂直救援木材岸的性能研究
Feng Zhang1, Xiangyang Lu1, Hao Zhang1
1Shandong Earthquake Emergency Service Center, Shandong Earthquake Agency, Jinan Shandong, China.
PloS one
|December 1, 2025
概括
这项研究测试了II型垂直木材岸的地震救援安全性. 与双T设计相比,双柱式配置显示出更高的承载能力和结构稳定性.
科学领域:
- 结构工程 结构工程
- 地震工程的工程是地震工程.
- 木制结构 木制结构
背景情况:
- 在地震救援行动中,结构不稳定是主要风险.
- 类型II垂直木材岸边通过支持操作空间来确保安全至关重要.
- 需要对木材岸性能和故障机制进行系统评估.
研究的目的:
- 评估II型垂直木材岸的结构性能和故障机制.
- 为了比较不同木材岸边配置 (双T-A,双T-B,双柱) 的承载能力.
- 在救援场景中,为木材岸的设计承载能力提出安全系数.
主要方法:
- 使用自主开发的液压测试装置进行压力承载能力测试.
- 在三种岸上类型上应用了位移控制的加载,直到故障.
- 在Abaqus开发了精细的有限元模型,包括关节接触特性,用于数值模拟.
主要成果:
- 双柱岸表现出最高的最终承载能力 (239.0 kN),超过双T-B (200.8 kN) 和双T-A (190.9 kN).
- 失败模式包括形裂,合板条扩张和后曲,通常由可听的线索先行.
- 实验和模拟结果显示强烈一致,验证了模型.
结论:
- 双柱式配置为II型垂直木材海岸提供了卓越的结构性能.
- 建议采用安全系数 (K=2.0),将允许应力设计与特定地点的因素集成在一起,以计算设计承载能力.
- 结果为安全设计和应用木材支系统在地震救援中提供了关键数据.
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