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深圳北站站台雨棚结构设计中创新采用新型的由四边形环索、竖向撑杆、斜杆及上部柱面网壳构成的弦支结构体系。理论分析、仿真模拟及试验研究表明,相对于常见的弦支穹顶、弦支梁等结构,该弦支结构体系在传力效率、承载力及稳定性等方面均较为优越,上部网格梁挠度及内力分布均匀合理,结构整体刚度显著提高,且局部环索或者斜杆破断对结构整体安全影响很小。
In the design of the canopy structure of Shenzhen North Station, a new type of chord structure system consisting of a tetragonal ring cable, a vertical strut, a diagonal strut and an upper cylindrical reticulated shell is innovated. Theoretical analysis, simulation and experimental studies show that, compared with the common chordal domes, chord beams and other structures, the chord structure system is superior in transmission efficiency, bearing capacity and stability, etc., the deflection of the upper grid And the internal force distribution is reasonable and reasonable, the overall stiffness of the structure is significantly increased, and the partial ring cable or inclined rod breakage has little effect on the overall structural safety.