Unverified83% confidenceDecision RuleTime unknown
层板跨度超过80cm时，两端支架中间需增加一个支撑点，否则实木/多层板长期受重会出现弓形下垂变形
1
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83%
Confidence
Long-term
Relevance
-
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Unverified搁板长度超过80cm时，仅两端支撑会导致中间下垂，需在中部增加一个支架，或选用厚度≥25mm的实木/多层板以提升抗弯性能92% similarUnverified搁板长度超过80cm时中间必须增加支撑点，实木/多层板长悬空易下垂，密度板/颗粒板长跨度下垂更明显，长搁板优先选实木或加钢内衬款89% similarUnverified实木搁板厚度<2cm且跨度>80cm时，即使支撑点足够，木板自身也会随时间产生中部弯沉，重物场景应选≥2.5cm厚或带隐藏钢筋的层板87% similarUnverified搁板深度超过25cm且长度超过80cm时，中间必须增加支撑点或选用金属三角托，否则实木板长期承重会出现下垂弯曲87% similarUnverified搁板悬空跨度（两个支架间距）超过60cm且为实木/中密度板时，中间易下弯变形，长搁板应选跨度≤60cm并增加中间支撑或改用金属托架86% similar
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