Unverified85% confidenceDecision RuleTime unknown
跨度＞90cm的层板中间无立柱时易下垂，木质/密度板跨度建议控制在80cm内，超过应加中间支撑或改用金属层板
1
Sources
85%
Confidence
Long-term
Relevance
-
First Seen
Sources
Related Entities
Related Claims
Unverified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93% similarUnverified两根立柱间距（跨度）建议控制在60-90cm，木质层板跨度超过80cm在承重下会明显下弯；跨度过大时应在中间增加立柱而非依赖层板刚性86% 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85% similarUnverified跨度＞40cm的横向层板中央下垂明显，木质层板超过60cm跨度需加中间立柱支撑，否则长期承重会弯曲变形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83% similar
Cite This Claim
Stable URI
https://kongchang.com/claim/386024API
curl https://kongchang.com/api/v1/knowledge/claims/386024MCP
get_claim(id=386024)