蓝月亮表演场基础采用天然地基上扩展基础，屋盖采用正放四角锥双层非完整球面钢网壳。

BlueMoon Arena is built on spread foundation, and its roof is an incomplete right four angle pyramid double layer reticulated shell.

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通过算例比较表明，实用计算式可简便并偏于安全地计算正放四角锥网架结构的临界温度。

The calculated example shows that the practical equation can calculate the critical temperature for regular pyramidic space trusses.

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