Concrete setting times depend on ambient temperature. Too cold and concrete takes longer to achieve the necessary strength to start the next level. Admixtures and other techniques can improve this.
So the claim for taking less time than a _concrete_ building is plausible for this location (I assume it's pretty cold compared with other climates). However like you mentioned, a _steel framed_ building would be similar in build time, since the elements can be hoisted and joined in the same way as a CLT building.
But that also depends what your slabs are. Most steel framed buildings use concrete slabs, which need to be poured and set, but with high early strength concrete and propping, this takes less time than a conventionally formed concrete building.
Concrete buildings can go up really fast, I've seen 5-6 day cycles on jobs. It depends on the complexity of the structure and again the ambient temperature (among other things). So yes concrete can go up faster than CLT as you noted.
As an interesting side note, the article mentions that the top floors of this CLT building use concrete for mass to limit swaying.
So the claim for taking less time than a _concrete_ building is plausible for this location (I assume it's pretty cold compared with other climates). However like you mentioned, a _steel framed_ building would be similar in build time, since the elements can be hoisted and joined in the same way as a CLT building.
But that also depends what your slabs are. Most steel framed buildings use concrete slabs, which need to be poured and set, but with high early strength concrete and propping, this takes less time than a conventionally formed concrete building.
Concrete buildings can go up really fast, I've seen 5-6 day cycles on jobs. It depends on the complexity of the structure and again the ambient temperature (among other things). So yes concrete can go up faster than CLT as you noted.
As an interesting side note, the article mentions that the top floors of this CLT building use concrete for mass to limit swaying.