Three-dimensional lightweight steel truss with bi-directional continuous double beams

Abstract

Disclosed is a three-dimensional lightweight steel framework formed by two-way continuous double beams. The three-dimensional lightweight steel framework comprises beams ( 1 ), purlines and/or stringers ( 16 ), pillars ( 2 ), walls ( 62, 63 ), slabs ( 31 ) and/or a roof and anti-lateral force bracings ( 41 ) and/or pull rods ( 42 ), wherein the beams ( 1 ) are continuous double beans, and the continuous double beams are formed by combining continuous single beams having the same structure or different structures, and the continuous single beams are respectively arranged at two sides of the outer edges of the pillars ( 2 ), and keep continuous and uninterrupted with the pillars ( 2 ) at the crosswise junctions; and reinforced lightweight composite slabs can be selected as the slabs ( 31 ) completely or partly. The three-dimensional lightweight steel framework simplifies the production of a lightweight steel member, and simplifies the site installation by using bolts to conduct fixing.

1 . A three-dimensional lightweight steel framing comprising a beam, a purlin and/or a stringer, a column, a wall body, a floor slab and/or a roof, and a lateral-force-resistant rod and/or tension braces, wherein the beam is a continuous double beam comprising two identical or different continuous single beams attached at both sides of the column, the continuous single beam and the column are continuous and not interrupted at a cross joint of the continuous single beam and the column. 
     
     
         2 . The three-dimensional lightweight steel framing of  claim 1 , wherein the column comprises a structural main column, a small column, a reinforcing column in the wall body, a brace, and a vertical column and/or a truss beam brace, the beam comprises a horizontal beam, an inclined beam, an upper chord beam and/or a bottom chord beam, and/or a ground tie beam, the continuous single beam is formed by at least one of a L-shaped steel member, a U-shaped steel member, a C-shaped steel member, a Z-shaped steel member, a plate-shaped steel member, and a slice truss, the purlin or the stringer is formed by at least one of the U shaped steel member, the C-shaped steel member, the Z-shaped steel member, and the slice truss, the slice truss comprises an upper chord, a bottom chord, and a shear resistance brace, the upper chord or the bottom chord is formed by the L-shaped steel member or U-shaped steel member, and the shear resistance brace is formed by the L-shaped steel member, the plate-shaped steel member, a rounded steel member or U-shaped steel member, the column is formed by at least one of the C-shaped steel member, an opened square-shaped steel member, a bent square-shaped steel member, and a square-shaped steel member, the opened square-shaped steel member is filled with concrete and/or cement mortar, the bent square-shaped steel member is formed by cold rolling a steel plate, two ends of the steel plate are bent to form two buckled edges with 90 degrees, and the two buckled edges are engaged together via rivets arranged at intervals, the continuous single beam is connected to the column by means of a bolt passing through a column connection hole on the column and a beam connection hole on a web of the continuous single beam. 
     
     
         3 . The three-dimensional lightweight steel framing of  claim 2 , wherein the L-shaped steel member, the U-shaped steel member, the C-shaped steel member, the Z-shaped steel member and the opened square-shaped steel member are provided with curled edges, an upper flange and a bottom flange of the U-shaped steel member, an upper flange and a bottom flange of the C-shaped steel member, or an upper flange and a bottom flange of the Z-shaped steel member have an identical width or different widths, the L-shaped steel member, the U-shaped steel member, the C-shaped steel member, the Z-shaped steel member, the opened square-shaped steel member, the bent square-shaped steel member, and the plate-shaped steel member are formed by cutting and/or cold rolling a galvanized steel reel. 
     
     
         4 . The three-dimensional lightweight steel framing of  claim 1 , wherein the continuous single beam comprises a plurality of single beams connected via at least one overlapped connection or at least one beam connector. 
     
     
         5 . The three-dimensional lightweight steel framing of  claim 1 , wherein the floor slab is a reinforced lightweight composite floor slab, the reinforced lightweight composite floor slab comprises a lightweight composite floor slab, the lightweight composite floor slab, the purlin, and the lateral-force-resistant rod and/or a ceiling are connected integrally by at least one floor connector, the lightweight composite floor slab is installed over the purlin, and the lateral-force-resistant rod and/or the ceiling are built under the purlin. 
     
     
         6 . The three-dimensional lightweight steel framing of  claim 5 , wherein the lightweight composite floor slab comprises a floor deck, the floor deck is formed by a profiled steel sheet, the profiled steel sheet is a corrugated profiled steel sheet or a folded profiled steel sheet, the profiled steel sheet is with a 0.2 to 1.0 millimeter thickness and a 30 to 50 millimeter groove depth, the profiled steel sheet is filled with concrete and/or cement mortar, the concrete and/or the cement mortar is framed by an internal anti-cracking mesh and/or anti-cracking fiber, a height difference between the concrete and/or the cement mortar and a peak of the profiled steel sheet is less than 50 millimeter, the profiled steel sheet is connected to the purlin by the floor connector, the floor connector comprises a self-tapping screw, a sleeve and/or a bearing gasket, the sleeve is tightly attached to the self-tapping screw, the sleeve is made of metal or plastic, at least one side of the sleeve is expanded to form the bearing gasket, the purlin is disposed at intervals of less than 180 centimeter, at least one pair of opposite corners of the lightweight composite floor slab are bounded by the lateral-force-resistant rod, the lateral-force-resistant rod is formed by a strip steel, the strip steel is connected to the purlin by the self-tapping screw, the ceiling comprises a first expanded ribbed mesh, the first expanded ribbed steel mesh comprises a first V-shaped rib and a first expanded mesh surface, the first expanded ribbed steel mesh is connected to the purlin by the self-tapping screw and/or an air nail, the ceiling is filled with the cement mortar, and the cement mortar is framed by the internal anti-cracking mesh and/or the anti-cracking fiber. 
     
     
         7 . The three-dimensional lightweight steel framing of  claim 2 , wherein the continuous single beam is an embedded continuous single beam, an upper flange and a bottom flange of the embedded continuous single beam formed by the L-shaped steel member, the C-shaped steel member or the Z-shaped steel member and corresponding to the column are cut off, so that the column is embedded into the embedded continuous single beam at across joint of the column and the embedded continuous single beam, the embedded continuous single beam is connected to the column by means of the bolt passing through the column connection hole on the column and the beam connection hole on a web of the embedded continuous beam. 
     
     
         8 . The three-dimensional lightweight steel framing of  claim 1 , further comprising a reinforced structure. 
     
     
         9 . The three-dimensional lightweight steel framing of  claim 8 , wherein the bottom chord beam is formed by the opened square-shaped steel member with an upward opening, a part of the opened square-shaped steel member overlapping the column or the brace is cut off, the opened square-shaped steel member is connected to the column or the brace by means of the bolt passing through the beam connection hole on a web of the opened square-shaped steel member and the column connection hole on the column or the brace, so as to form the reinforced structure. 
     
     
         10 . (canceled) 
     
     
         11 . The three-dimensional lightweight steel framing of  claim 8 , wherein a space between two continuous single beams, and/or a cavity between the columns, and/or a cavity of the opened square-shaped steel member of the bottom chord beam is filled with the concrete and/or the cement mortar, so as to form the reinforced structure. 
     
     
         12 . The three-dimensional lightweight steel framing of  claim 8 , wherein the reinforced structure is a plurality of self-tapping screw disposed at a periphery of the bolt and for falsely fixing the beam and the column after the beam and the column are calibrated, and the plurality of self-tapping screw is removed after the cavity between the columns or the opened square-shaped steel member of the bottom chord beam is filled with the concrete and/or the cement mortar. 
     
     
         13 . The three-dimensional lightweight steel framing of  claim 8 , wherein a supporting steel member is arranged in the space between the two continuous single beams, and/or in the cavity between the columns or the opened square-shaped steel member forming the bottom chord beam, where the concrete cement and/or the cement mortar is filled, so as to form the reinforced structure, and the supporting steel member is a steel bar, a stirrup, or a pre-stressed steel wire. 
     
     
         14 . The three-dimensional lightweight steel framing of  claim 13 , wherein the stirrup is a square stirrup, a rounded stirrup, a helical stirrup or a rounded steel mesh, and the pre-stressed steel wire is provided with a sleeve. 
     
     
         15 - 30 . (canceled)