Unverified83% confidenceDecision RuleTime unknown
宽度选择受制于层板中间是否有支撑：单跨宽度＞80cm的层板若无中间立柱支撑，重压下易中部下弯变形，宽度需求大应选带中间立柱的多跨结构或加厚层板
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83%
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Long-term
Relevance
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Unverified落地架宽度超过80cm时优先选带中间立柱或三角加强筋的结构，否则层板长期承重会出现中部下弯，纯两侧支撑的宽层板是变形高发点88% similarUnverified单个柜体宽度超过80cm的层板建议中间加竖向支撑或选双柱设计，否则层板跨度过大易变形下弯88% similarUnverified网板尺寸不是越大越好：单块宽度超过80cm且仅两点固定时，中部易下垂变形，大面积墙面收纳建议用多块拼接或选带中间加固横梁的款式85% similarUnverified长搁板（≥80cm）必须增加中间支撑点或选加厚层板，否则中部会随时间下垂（蠕变）；实木层板抗下垂优于刨花板/密度板，跨度超过1m建议至少3个固定点82% similarUnverified层板跨度（两立柱间距）超过80cm时必须增加中间支撑或采用金属加固，纯板材/实木悬空跨度过大是下垂的首要原因，建议单跨控制在75cm以内82% similar
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