Corner beam for concrete formwork

Abstract

A corner beam for concrete formwork that connects to other beams (e.g., cantilevered beams) can include various elements. In some examples of this disclosure, the corner beam does not need additional underneath support. In examples, the corner beam simplifies corner constructions and contributes to easier and safer corner formwork installation. For example, the corner beam can include end clips with a post (or other type of hook) that inserts into a pocket of the other beams. In addition, the corner beam can include a trough that extends along the side and that can connect to one or more other supports beams.

Claimed is: 
     
         1 . A structural beam comprising:
 a first beam end;   a second beam end;   a top portion;   a bottom portion;   a first side;   a second side, wherein the top portion, the bottom portion, the first side and the second side extend from the first beam end to the second beam end;   the first beam end comprising:
 a first extension that extends from the top portion; and 
 a first tenon that extends downward from the first extension; and 
   the second end comprising:
 a second extension that extends from the top portion; and 
 a second tenon that extends downward from the second extension. 
   
     
     
         2 . The structural beam of  claim 1 , wherein the first tenon and the second tenon are aligned with a longitudinal midline of the structural beam. 
     
     
         3 . The structural beam of  claim 1  further comprising: a first L-shaped bracket affixed to the first beam end, the first L-shaped bracket comprising a first arm that is perpendicular to a second arm, wherein the first arm comprises at least a portion of the first extension and the second arm comprises the first tenon. 
     
     
         4 . The structural beam of  claim 1  further comprising:
 a main central beam comprising a central portion of the structural beam, wherein the main central beam comprises a first end portion end and a second end portion; and 
 a first end clip comprising a first mounting portion that is coupled to the first end portion, wherein the first clip comprises the first extension and the first tenon. 
 
     
     
         5 . The structural beam of  claim 4 , wherein the first end portion comprises a tubular body; and wherein the first mounting portion comprises an insert slidably received within an interior void of the tubular body. 
     
     
         6 . The structural beam of  claim 5 , wherein the first end portion comprises one or more first openings, the insert comprises one or more second openings, and the structural beam comprises one or more fasteners coupled to the one or more first openings and the one or more second openings. 
     
     
         7 . The structural beam of  claim 6 , wherein the one or more second openings each comprises an elongated slot. 
     
     
         8 . The structural beam of  claim 4 , wherein at least the first side comprises a first trough extending along the main central beam from the first end portion to the second end portion. 
     
     
         9 . The structural beam of  claim 4 , wherein the first end clip comprises at least a first groove configured to nest into a trough of another structural beam. 
     
     
         10 . A corner assembly for concrete formwork, the corner assembly comprising:
 a first structural beam comprising a first end cap, wherein the first end cap comprises a first pocket;   a second structural beam that is oriented perpendicularly relative to the first structural beam and that comprises a second end cap, wherein the second end cap comprises a second pocket; and   a third structural beam comprising a first tenon coupled in the first pocket and a second tenon coupled in the second pocket.   
     
     
         11 . The corner assembly of  claim 10  further comprising, a first post comprising a first anchoring insert coupled in the first pocket; a second post comprising a second anchoring insert coupled in the second pocket; and a safety barrier coupled to, and extending between, the first post and the second post. 
     
     
         12 . The corner assembly of  claim 10 , wherein the first structural beam comprises a first trough on a side of the first structural beam; wherein the second structural beam comprises a second trough on a side of the second structural beam; and wherein the third structural beam comprises a first groove nested into the first trough and a second groove nested into the second trough. 
     
     
         13 . The corner assembly of  claim 10 , wherein the third structural beam comprises a main central beam, a first end clip comprising the first tenon, and a second end clip comprising the second tenon. 
     
     
         14 . The corner assembly of  claim 13 , wherein the first end clip comprises one or more slotted openings that each receives a fastener, which couples the first end clip to the main central beam. 
     
     
         15 . The corner assembly of  claim 13 , wherein the first end clip comprises an L-shaped bracket comprising a first arm that is perpendicular to a second arm; and wherein the first arm is coupled via a removable fastener to the first end clip and the second arm comprises the first tenon. 
     
     
         16 . The corner assembly of  claim 12 , wherein the third structural beam comprises a third trough; and wherein the corner assembly further comprises a fourth structural beam that is coupled to, and extends between, the first trough and the third trough. 
     
     
         17 . An end clip for attachment to a main central beam, the end clip comprising:
 a main body comprising a top portion, a bottom portion, a proximal side for attachment to the main central beam, and a distal side that is opposite the proximal side;   a mounting insert extending from the proximal side and configured to be slid into an interior void of the main central beam;   an extension extending out from the distal side and up near the top portion of the main body;   a tenon extending downward from the extension; and   a first groove and a second groove on the bottom portion, wherein the first groove is perpendicular relative to the second groove.   
     
     
         18 . The end clip of  claim 17 , wherein the mounting insert comprise one or more slotted openings configured to receive a respective fastener for attachment to the main central beam. 
     
     
         19 . The end clip of  claim 17  further comprising, an L-shaped bracket comprising a first arm that is perpendicular to a second arm; wherein the first arm is coupled via a removable fastener to the extension and the second arm comprises the tenon. 
     
     
         20 . The end clip of  claim 17 , wherein the main body comprises a first side and an opposite second side, and wherein at least the first side comprises a recessed side wall that, with the top portion, comprises a handle.