这些梁结构形成棚架，固定间接照明系统。
These beams form a pergola where the indirect lighting system is fixed.
对管片结构进行分析和合理的简化，即将管片设置为梁单元，将管片间接头简化为抗弯弹簧，而不考虑接头的拉伸和错动。
Analyzing and simplifying the segment structure, thus entitling the segment to be beam element, and simplifying the joint to be bending springs.
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