The response of diagrid structures to fire

The diagrid structural system has seen significant uptake in medium to high rise buildings because of the architectural and resource advantages that it provides. These arise mainly as a result of flexibility in the topology that this particular structural solution provides. However, as a result of the way in which diagrids carry both horizontal and vertical loading, the diagrid structure itself may be susceptible to fire in ways which are not immediately obvious on the basis of our understanding of more traditional rectilinear construction forms. This study addresses this to improve our understanding of diagrid structures' response to fire. A comprehensive structural analysis on 45 fire load cases is conducted, considering different fire locations and sizes, using parametric design tools and finite element analysis software. The results provide valuable insights into the load redistribution and collapse mechanisms of diagrid structures in fire conditions.

由于其提供的建筑和资源优势，斜交网格结构体系在中高层建筑中得到了广泛应用。这些优势主要源于这种特殊结构解决方案在拓扑结构上的灵活性。然而，由于斜交网格承担水平和垂直荷载的方式，斜交网格结构本身可能容易受到火灾影响，而基于我们对更传统的直线型建筑形式的了解，这种影响并非显而易见。本研究旨在解决这一问题，以提高我们对斜交网格结构在火灾中的反应的理解。利用参数化设计工具和有限元分析软件，对45种火灾荷载工况进行了全面的结构分析，考虑了不同的火灾位置和规模。研究结果为斜交网格结构在火灾条件下的荷载重分布和倒塌机制提供了有价值的见解。