Culvert Guesthouse / nendo
Textual content description supplied by the architects. A storage facility for archiving furnishings, merchandise, and art work in Miyota-machi, Nagano Prefecture, with a guesthouse hooked up. Positioned in a quiet and nature-rich surroundings the place streams weave via a thick forest of purple pine, the tunnel-like structure took form via a mix of precast and prestressed building strategies.
For precast building, widespread components are molded in a manufacturing facility and assembled on website. An instance of its purposes in infrastructure tasks is the field culvert (box-shaped concrete constructions), used to retailer waterways, pathways, energy strains, and communication strains buried underground. Nonetheless, for the reason that methodology itself doesn’t present a leak-free composition nor does it enable for stacking, each obligatory for this structure, prestressing was additionally used to attach the components collectively.
The prestressing methodology is a method utilized in civil engineering constructions reminiscent of bridges, through which the components are aligned after which tightened with wires to attach them. This ends in a seamless and clean floor end, acquiring a good seal, and sturdiness.
The widespread square-shaped components weigh roughly 12 tons every, and a complete of 63 of those components have been used. The dimensions of the components was derived from the loading measurement of the supply truck and the load that could possibly be lifted by a crane. The 45-degree reinforcement on the entry nook, which can be discovered usually field culverts, serves as a brace and enhances earthquake resistance. By connecting these components, a slender, tunnel-shaped area with an inner dimension of roughly 2 x 2.3 m was created. Fourteen wires have been used to attach every “tunnel” and care was taken to use uniform rigidity to every wire always. The work concerned progressively tightening the wires over time till a rigidity of 46 tons was lastly utilized to every.
The constructing consists of 4 stacked “tunnels” lined with a roof within the heart. Along with an extended, slim storage room with a depth of roughly 40 meters, there are two smaller storage rooms, however it’s envisioned that extra will likely be added to the positioning sooner or later as the gathering grows. The kitchen, lavatory, bathroom, and different water amenities are focused on the primary flooring, and a compact bed room and a examine are situated on the second flooring.
The home windows have been made with out metallic frames as a lot as potential, and high-transparency glass measuring as much as 10 meters in size was mounted into the grooves in the identical method as shoji screens. The gravel and plantings used within the exterior have been additionally organized within the inside to attract the surface surroundings into the inside. To make it simpler to stroll on, the gravel was partially hardened with resin. As a substitute of simply pouring resin over the gravel, which is often the case, the resin was utilized to the bottom first after which gravel was laid on it in order that the floor wouldn’t change into shiny. As well as, the door handles would have seemed abrupt if put in as-is, so an unique deal with was designed, which hides within the small hole between the door and the wall. The tub is carved into the ground, such that the water floor aligns with the ground, creating the looks that the tunnel form is steady.
The ensuing area is much less architectural, however quite a undertaking that mixes civil engineering ideas with product design particulars.