A connection member (60, 60) for connecting two elongate frame members (93,120, 122, 126, 128) of a demountable frame building (168) has an attachment portion (62, 62) for attachment to one frame member (120, 122, 126, 128) and a receiving portion (64, 64) for sliding engagement with a hollow end of a second frame member (93). The attachment portion and receiving portion are integrally formed from a single piece of material. The receiving portion has a rectangular cross-section smaller than and offset relative to the rectangular cross-section of the attachment portion to define a shoulder (66, 66) around the receiving portion on the attachment portion of greater depth (68, 68, 72, 72) on at least one side (70, 70, 74, 74) of the receiving portion. The receiving portion has a screw-threaded passage (86, 86) for a locking member (150) to secure the receiving portion in the second frame member, the passage opening for receipt of the locking member on an opposite side (88, 88, 90, 90) of the receiving portion. One embodiment (60) has a shim (108) for guiding the sliding engagement.

Provided is a linkage unit configured to form a node of a frame structure of a building, the linkage unit including: a node member having a plurality of to-be-linked portions having linkage directions which are directions of respective sides of the frame structure; link members configured to be detachably linked to the plurality of respective to-be-linked portions; and a lock mechanism configured to enter states including, as manually switchable states, a locked state where a linkage between any of the to-be-linked portions and the corresponding link member is retained and an unlocked state where the link member is allowed to be detached from the to-be-linked portion. Provided is a building assembling set including the linkage unit. Provided is a method for assembling a building by using the linkage unit.

A connector assembly, having an upper connector coupled to a lower connector and a gusset plate sandwiched between the upper and lower connectors. Also, disclosed is a hoistable connector assembly, a lifting frame assembly, a coupling system for modular frame units, a method for assembling a module unit using the connector assembly, and a modular frame unit and building having the connector assembly.

An adaptive building system is provided. A wall system and rafter module are also provided.

The present disclosure provides with a modular unit for apparatus installation, comprising a plurality of vertical struts and multiple layers of apparatus installation frame connecting the plurality of vertical struts for installing apparatuses. The modular unit for apparatus installation is transported in its entirety to a desired installation site to perform installation in a state where various apparatuses are mounted to respective layers of the apparatus installation frame. In the multiple layers of apparatus installation frame, at least the apparatus installation frame at a bottom layer is a crossbeam frame composed of a plurality of crossbeams, and the crossbeam frame is detachably connected not only to a plurality of vertical struts, but also to the various apparatuses mounted to the crossbeam frame. With the modular unit for apparatus installation according to the present disclosure, at least a portion of the crossbeam frame at the bottom layer on which various apparatuses are mounted may be disassembled after the modular unit arrives at the installation site, such that the potential danger caused by the crossbeam frame obstructing the diffusion of gases stranded at the bottom layer can be prevented.

A modular dugout has different modular units including a roof assembly, a base pole assembly, an end assembly, a hinge assembly, and a gate assembly that ease assembly at a site where the dugout is to be situated.

An adaptive building system is provided with a rafter module.