Unverified85% confidenceTradeoffTime unknown
承重与重量互斥：钢架床承重高但整体多在8-12kg，铝合金/碳素床轻至2-3kg但承重下降，且价格显著更高
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85%
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Long-term
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Unverified承重与重量矛盾：钢管高承重床整重多7-10kg，铝合金轻量床可做到2.5-4kg但承重和稳定性下降，摩托/骑行露营需轻量牺牲承重，自驾露营可无视重量选钢管84% similarUnverified钢架营地床承重普遍在120-150kg，铝合金架多为100-120kg；双人共用或体重超100kg选钢架且横撑数量≥3根，避免中间塌陷83% similarUnverified承重能力与整体重量成正比：金属钢制关节承重强但笨重，铝合金关节轻便但承重上限约1.5kg，选购需按最重设备取舍，不能兼得81% similarUnverified露营/自驾场景优先选铝合金材质，承重15-30kg且整体重量控制在2.5kg以内；单纯家用长期固定放置可选钢制（承重50kg+但重3-5kg）80% similarUnverified钢管框架床架承重可达200kg以上，铝合金框架通常150kg封顶但重量轻30-40%，两人同睡或体重较大者应选钢管框架80% similar
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