As　a　vibration　control　technique,　tuned　mass　damper　(TMD)　system　has　been　shown　to　be　effective　in　reducing　the　human-induced　vibration　of　a　cross-laminated　timber　(CLT)　floor.　However,　the　lightweight　property　of　such　a　floor　means　there　could　be　off-tuning　when　its　mass　varies.　This　study　therefore　developed　a　steel-based　multi-TMD　(MTMD)　system　and　a　shape　memory　alloy　(SMA)-based　MTMD　system　to　reduce　human-induced　vibration　of　the　CLT　floor.　The　superelastic　SMA　components　can　give　the　MTMD　system　more　resilience　and　thus　improve　the　robustness.　Two　3-TMD　systems　in　different　locations　and　5-TMD　systems　were　designed　to　be　effective　within　a　certain　bandwidth.　The　results　show　that　SMA-based　5-TMDs　are　the　most　effective　in　reducing　human-induced　vibration,　for　example,　single-person　and　two-person　slow　walking,　fast　walking　and　running,　as　they　can　cover　a　wider　frequency　band.　By　contrast,　the　effectiveness　of　the　steel-based　MTMD　systems　was　unsatisfactory　owing　to　permanent　deformation　of　the　steel　components.　When　the　loads　on　the　CLT　floor　changed,　the　SMA-based　5-TMDs　exhibited　high　robustness　and　were　able　to　maintain　the　response　at　a　low　level.　Test　results　show　that　a　high-frequency　excitation　could　degrade　the　effectiveness　of　the　MTMD,　as　this　is　beyond　the　effective　bandwidth.　Therefore,　future　investigations　should　focus　on　developing　strategies　to　enlarge　the　bandwidth　of　the　MTMD.