A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.

A building structure (100) is erected on a concrete slab (105). The structure comprises a rigid beam-and-post frame (110) and a plurality of wall and roof panels (130, 145). A first end of the posts (120) of the frame are secured to the concrete slab. A beam (115) is secured to a second end of the posts. Adjacent wall and roof panels are secured to one-another by interlocking edges joined with adhesive or other fasteners. Wall panels adjacent to the posts of the frame may be secured to the posts. Roof panels are secured to the beam and wall panels. Wall panels are secured to the concrete slab by adhesive sealant (1000), angles (1005), and bolts (1010, 1015). Ceiling panels are secured to the beam by a plurality of bolts (1010), and brackets (1005, 1200). Openings (135) for windows and doors are formed in the wall panels.

A composite structural member for a building structure comprises a first elongate portion having a first end region and a second end region and a second elongate portion having a first end region and a second end region. The second end region of the first elongate portion is connected to the first end region of the second elongate portion so that the composite structural member provided thereby is substantially longer than either of the first and second elongate portions. The first elongate portion may comprise a first member suited for resisting high magnitude forces and the second elongate portion may be a second member, less well suited for resisting high forces but having lower cost per unit length. The composite structural member may be a rafter, especially a rafter of a portal frame.

Provided herein is an assembly for carrying or supporting a load. The assembly comprises a plurality of members connectable in an assembled arrangement for carrying or supporting the load. Each member comprises a first end and a second end, at least one of the first end and the second end has a pair of connecting members comprising two lugs that each has defined therein two holes. The lugs are configured for alignment with a corresponding pair of lugs formed on another member in the assembly. Fasteners extend through the holes formed in the lugs when the holes are aligned. Further provided are members for use in the assembly and connector elements for attaching two or more members in the assembly.

A clearspan structure including component systems, and methods of forming a clearspan structure including component systems, for mitigating hazards to personnel or equipment from explosions, fires, toxic material release, and other hazards in hazardous locations. The exemplary clearspan structure is also capable of withstanding environmental conditions such as snow loads and wind. The exemplary clearspan structure is, for example, a tent or fabric structure which includes a plurality of frame members forming a support system for the clearspan structure, and fabric roof portions and walls for enclosing the clearspan structure.

A greenhouse building has perimeter wall frames constituted by linear materials such as single pipes, and roof frames constituted by tension wires that are extended in a stretched state in the longitudinal and crosswise directions. The tension force of the tension wires is received by the installation surface through anchoring tension wires. Only compression force acts on support posts of the wall frames and substantially no bending force acts thereon. A large building can be easily constructed using linear materials such as single pipes with a small diameter. A large greenhouse with high light receiving efficiency can be easily constructed without using heavy building materials such as steel frame materials.

An adjustable moment frame, comprising: base columns, each comprising a plurality of column attachment points; beams, each comprising a plurality of beam attachment points; and connectors, each comprising a plurality of connector attachment points. The beam attachment points are configured to align with the column attachment points, such that the frame is adjustable between at least two different beam/column configurations. The beam attachment points are configured to align with the connector attachment points, such that the frame is adjustable between at least two different beam/connector configurations.

Provided is a building structure enabling use of a horizontal member made of heavy gauge steel and braces installed between pillars erected in a longitudinal direction to be eliminated and structurally efficient.

A building structure of the present invention includes: a horizontal member (10) installed between pillars (30) erected in a longitudinal direction; and a unit (20) installed on the horizontal member (10), wherein the horizontal member (10) is made of light gauge steel, the unit (20) includes: 1) a horizontal frame (21) including a short side member (21a) and formed in a rectangular shape; 2) a beam (22) connected to a center of the short side member (21a) in a lengthwise direction to be perpendicular to the horizontal frame (21) and having a truss structure; 3) a first diagonal member (23) installed between one end of the short side member (21a) and the beam (22); and 4) a second diagonal member (24) installed between another end of the short side member (21a) and the beam (22), the short side member (21a) is an upper chord member of a girder (50) connected to the pillar (30) and having a truss structure, the horizontal member (10) is a lower chord member of the girder (50), a vertical member (22c) of the beam (22) is a vertical member of the girder (50), and the first diagonal member (23) and the second diagonal member (24) are diagonal members of the girder (50).

A clearspan structure including component systems, and methods of forming a clearspan structure including component systems, for mitigating hazards to personnel or equipment from explosions, fires, toxic material release, and other hazards in hazardous locations. The exemplary clearspan structure is also capable of withstanding environmental conditions such as snow loads and wind. The exemplary clearspan structure is, for example, a tent or fabric structure which includes a plurality of frame members forming a support system for the clearspan structure, and fabric roof portions and walls for enclosing the clearspan structure.

A structure for seismic isolation 10 provided on a structure plane 17 including a pair of left and right columns 5, 5 spaced apart in a horizontal direction, and a pair of upper and lower beams 7A, 7B spaced apart in a vertical direction, wherein the structure for seismic isolation comprises: a seismic isolation device 11 provided in a middle of each of the column 5, 5 to be displaced toward the beam 7A; and a horizontal rigid bearing element that is provided between an area in which the seismic isolation device 11 is provided and the beam 7B and that includes a connection beam 13 connecting the pair of columns 5, 5 and vertical braces 15L, 15R.