A modular perimeter frame system (10) is described for forming a perimeter frame (11) used in the construction of floors, walls and roofs of buildings. The modular perimeter frame system has a first modular sub-frame (16) having one or two blunt end portions (26, 28), and a second modular sub-frame (18) having one or two overhang end portions (36, 38). The blunt and overhang end portions are so dimensioned and shaped as to facilitate a continuous abutting engagement between at least two surfaces which meet at a corner of the blunt end portion and at least two surfaces which meet at a corner of the overhang end portion.

A modular factory building, comprising a plurality of modules (10), the module (10) including a framework (11) provided with an apparatus installation area for installing process equipment (13) and/or utility equipment (14), an air duct system, a pipe system and a cable tray system, wherein the air duct system, the pipe system and the cable tray system are arranged on the framework (11) and are connected with the process equipment (13) and/or the utility equipment (14). The afore-described modular factory building is capable of improving the construction efficiency, reducing the construction period, and saving the construction cost.

A process for covering, protecting and providing access to mate lines during building construction comprising the steps of preparing a vertical and horizontal mate line closure flap, carrying out a vertical and horizontal mate line access process, carrying out a vertical and horizontal mate line closing process, repeating the vertical and horizontal mate line access and closing processes as required, and carrying out a vertical and horizontal mate line sealing process to complete the building weatherization.

A swaged interface includes a male element that includes a male cavity defined by at least one male sidewall, and a plurality of first openings defined in the at least one male sidewall. The swaged interface also includes a female element that includes a female cavity defined by at least one female sidewall, and a plurality of second openings defined in the at least one female sidewall. The female element has an inner cross section sized to receive the male element such that each of the first openings is aligned with a respective one of the second openings. The inner cross section is formed by swaging.

A beam system for a screened enclosure that includes one piece support beams having an internal channel and three or more spline grooves on one or more exterior sides. The spline grooves are designed to accept and secure screen material. Inserts positionable within the interior channel of adjacent beams may provide increased structural support for larger openings in the screened enclosure. The inserts generally include a central pillar having angular caps attached to opposing lateral edges thereof so that an insert fits snugly within the interior channel of the support beam. The inserts may be secured within the support beams by fastening elements.

The invention discloses a calculation method of ultimate moment resistance and moment-rotation relation for steel beam to concrete-filled steel tube column connections with bidirectional bolts, wherein the calculation method as follows: calculate ultimate moment resistance values of the connection for different failure modes, i.e. yielding of the endplate or T-stub in bending, failure of bolts in tension, failure of column in transverse compression, failure of panel zone in shear, and yielding of the steel beam in bending; the smallest one in the five ultimate moment resistance values is taken as the ultimate moment resistance of the connection; obtain the initial rotational stiffness of the connection by the test, simulation or theoretical calculation; then, the moment-rotation curve of the connection is obtained by substituting the initial rotational stiffness and the ultimate moment resistance into the proposed exponential model for the moment-rotation relation.

A composite structural board having a structural board and a water-resistant barrier (WRB) sheet, and a wall system comprising same, wherein a face of the structural board is discontinuously attached to the inner face of the WRB sheet solely by a first adhesive, the WRB sheet fully covering the face of the structural board; wherein the unattached areas between the face of the structural board and the inner face of the WRB sheet define paths by which a liquid can move between the face of the structural board and the inner face of the WRB sheet; in some instances the WRB sheet material extends beyond at least one edge of the structural board forming a WRB sheet flap.

A connector assembly, having an upper connector coupled to a lower connector and a gusset plate sandwiched between the upper and lower connectors. The upper and lower connectors allow for coupling to adjacent upper and lower connectors, respectively, allowing for addition of a modular unit to a pre-existing modular structure. Also, ways of coupling adjacent upper connectors and coupling of adjacent lower connectors when coupling a modular unit to a pre-existing modular structure are provided.

A modular perimeter frame system is described for forming a perimeter frame used in the construction of floors, walls and roofs of buildings. The modular perimeter frame system has a first modular sub-frame having one or two blunt end portions, and a second modular sub-frame having one or two overhang end portions. The blunt and overhang end portions are so dimensioned and shaped as to facilitate a continuous abutting engagement between at least two surfaces which meet at a corner of the blunt end portion and at least two surfaces which meet at a corner of the overhang end portion.

A locating pin assembly for coupling a first modular frame to a second modular frame is disclosed. The locating pin assembly has a first gusset plate positioned between the first modular frame and the second modular frame. The first gusset plate has a first gusset plate aperture and a second gusset plate aperture for receiving fastening means for coupling the first-modular-frame-first-beam and the second-modular-frame-first-beam the gusset plate. The pin assembly also has a pin engaging the first gusset plate, the first modular frame and the second modular frame. Also disclosed are modular frame units having the pin assembly, system of modular frame units having the pin assembly and a method of coupling modular frame units.