The present invention addresses the problem of providing a joint structure which comprises a joint member suitable for a butterfly joint, and a building. The joint structure according to the present invention includes a first wood panel, a second wood panel, and a butterfly wedge-shaped joint member for joining the first wood panel and the second wood panel. The joint structure has an allowable yield strength of about 10 kN or more. In one embodiment, the ratio of the bending strength of the wood panels to the bending strength of the joint member in the joint structure is 1:2.2 to 1:3.6. In addition, the joint structure according to the present invention may further include a joint member comprising laminated wood in which a plurality of plate materials are laminated.

Disclosed is a modular building system including, in some embodiments, one or more wall panels, one or more floor panels, and one or more roof panels. The modular building components of the modular building system including the one or more wall panels, the one or more floor panels, and the one or more roof panels can form housing or storage structures with electrical wiring, plumbing, or both wiring and plumbing. The housing or storage structures can be erected by one or more persons without a need for a plumber, an electrician, or power tools. Also disclosed is a method for erecting one or more housing or storage structure in accordance with the modular building system.

A prefabricated wall panel defines a panel plane and a peripheral edge includes a plurality of material layers parallel to the panel plane and superimposed on one another, including a load-bearing layer made of reinforced cement, a protective layer distanced from the load-bearing layer, and a heat-insulating layer formed on a side of the load-bearing layer opposite to the protective layer. An air circulation gap is formed between two layers of the material layers so as to separate the two layers from each other. The air circulation gap is open on the entire peripheral edge. A plurality of spacer connectors extends in a direction transversal to the panel plane through the air circulation gap, each spacer connector having a first anchoring end fixed in the protective layer and a second anchoring end fixed in the load-bearing layer.

There is disclosed a method of constructing a building, comprising installing: wall structure of the building, the wall structure comprising a panel having opposed skins and a core within which extends at least one cavity; and a ceiling structure of the building, such that the ceiling structure is adjacent the wall structure, and the wall structure bounds a space at a side of the space and the ceiling structure bounds the space at a top of the space, and such that: the space is sheltered and/or isolated from the elements; and/or lock-up is attained in respect of said space, the method further comprising: thereafter installing at least one service line through at least one said cavity of said panel and/or installing at least one service line which comprises at least one said cavity of that panel; and thereafter installing a roof structure of the building over the ceiling structure, wherein a connector is secured between the wall structure and the ceiling structure to form therebetween a connection which is such that the connector engages both the ceiling structure and at least one of the skins so as to direct, to the skin(s) engaged thereby, loading exerted by the ceiling structure, and wherein said at least one said cavity is accessed through said connector and/or through said ceiling structure, to install the service line(s).

A magnetic attraction connection structure includes a main body. The main body has a peripheral edge on which at least one connection surface is defined. The main body is provided with at least one movement space in an interior of the peripheral edge at one side of the connection surface. The movement space is provided with a magnet arranged in an interior thereof. The movement space is of a size that is sufficient to allow the magnet to move in a direction toward the connection surface or to rotate by an angle. In use, the connection surface of the main body is placed in direct contact with another main body at the location corresponding to the magnets, such that the magnets arranged in the two movement spaces automatically move or rotate due to magnetic attraction of opposite magnetic polarities, so as to securely fix the main bodies together.

A modular construction system, including, first and second walls, each having first and second broad surfaces. Each wall includes throughgoing connector-receiving bores. The modular construction system further includes a connector including a longitudinal body portion arranged along a longitudinal axis and having a first width. A head portion of the longitudinal body portion includes a base surface having a second width in a direction transverse to the longitudinal axis. A pair of protrusions extend outwardly from the longitudinal body portion and are disposed between the base surface and a tail end of the longitudinal body portion. The protrusions include an engagement surface facing toward the base surface and having a third width, the third width being greater than the first width.

A cross-laminated timber (CLT) decorative panel and a connecting device thereof are provided, and belongs to the field of construction materials. The CLT decorative panel includes a first decorative layer, a buffer layer, a CLT layer and a second decorative layer, where the first decorative layer, the buffer layer, the CLT layer and the second decorative layer are sequentially arranged from top to bottom, and the buffer layer is internally provided with a non-Newtonian fluid. The connecting device includes a support body and a connecting block arranged on the support body; the support body has a rectangular solid structure; a cross section of the support body is square with a side length the same as a thickness of the decorative panel; the connecting block is fit with the connecting groove.

Panels are shown which are provided with a mechanical locking system allowing perpendicular connection with a snap action. A set of panels including a first and a second panel, an edge of the second panel is insertable into a groove of the first panel, when the panels are arranged essential perpendicular to each other, to obtain a mechanical connection between the first and the second panel, when the second panel is displaced essentially perpendicularly to the first panel.

A system and a method for securing a first composite panel to a second composite panel include a latch assembly having one or more latches. The latch assembly is configured to be secured to one of the first composite panel or the second composite panel. One or more strikes are configured to retain at least a portion of the one or more latches. The one or more strikes are configured to be secured to the other of the first composite panel or the second composite panel.

A building construction system (2) for construction of a building (20) is disclosed. The building construction system (2) comprises a plurality of modules (M.sub.1, M.sub.2, M.sub.3, M.sub.4, M.sub.5, M.sub.6, M.sub.7, M.sub.8, M.sub.9, M.sub.10, M.sub.11), each comprising at least one centrally arranged insulation member (4, 4′) sandwiched between a first cover plate (12, 12′) and a second cover plate (14, 14′). The at least one insulation member (4, 4′) is made in polyurethane (PUR) or polyisocyanurate (PIR). A reinforcement connection structure (10) extends between and is mechanically connected to opposite cover plates (12, 12′, 14, 14′). At least a portion of the joints (6, 6′) between adjacent cover plates (12, 12′, 14, 14′) are glued together.