Single-Layer Reticulated Shells (SLRSs) have been widely used in the past few decades due to their attractive architectural shapes and good mechanical behavior. The stability of SI,RSs is often a dominant or control problem in structural design. In this paper, research on the stability of SLRSs carried out in the authors' research lab over the past two decades are described, emphasizing theoretical research work on nonlinear numerical techniques for stability analysis, numerical and experimental investigations of static and dynamic instability characteristics of SLRSs, and application of the achievements in practical engineering projects. Finally, additional topics regarding stability analysis and design of SLRSs are briefly discussed.

对两种几何特征的圆钢管空间相贯节点进行了静力单调和反复加载的实验研究，以作为进一步研究钢管桁架抗震性能的基础。设计了专用的加载装置以对试件中的杆件和节点施加较大内力。通过对5 试件的实验，得到了节点滞回特性曲线。研究揭示了这类节点塑性变形沿首次塑性开展方向累积的特点，并指出单调加载曲线可以基本包覆滞回曲线。实验表明，采用相贯节点的钢管结构，其滞回特性取决于节点的滞回行为。对给定节点在反复加载下的变形能力和耗能能力进行了量化评价。