Joint structure for earthquake-resistant member and construction method for the same

Abstract

Exemplary embodiments of a joint structure for an earthquake-resistant member can be provided at an intersect portion of a steel column extending in a substantially vertical direction and a steel beam extending in a substantially horizontal direction, and facilitated for joining an earthquake-resistant member to the intersect portion. The joint structure can include: a first joining plate located along the steel column without fixing the first joining plate to the steel column; a second joining plate located along the steel beam without fixing the second joining plate to the steel beam; a first movement-restraint member which restrains the first joining plate; and a second movement-restraint member which restrains the second joining plate. The earthquake-resistant member can be joined to the first joining plate and the second joining plate.

1 . A joint structure associated with an earthquake-resistant member situated at and configured to join an intersect portion of a steel column which extends in a substantially vertical direction and a steel beam which extends in a substantially horizontal direction, the joint structure comprising: 
 a first joining plate located approximately along and without being fixed to the steel column;    a second joining plate located approximately along and without being fixed to the steel beam;    a first movement-restraint member provided on the steel column and configured to contact an end portion of the first joining plate, the first movement-restraint member restraining the first joining plate such that the first joining plate is substantially limited from moving in the direction of the steel column; and    a second movement-restraint member provided on the steel beam so as to contact an end portion of the second joining plate, the second movement-restraint member restraining the second joining plate such that the second joining plate is substantially limited from moving in the direction of the steel beam,    wherein the earthquake-resistant member is joined to the first joining plate and the second joining plate.    
   
   
       2 . The joint structure according to  claim 1 , wherein, when a compression force acts on the earthquake-resistant member, the compression force transmits to the steel column through the first joining plate as a bearing force and transmits to the steel beam through the second joining plate as a bearing force.  
   
   
       3 . The joint structure according to  claim 1 , wherein, when a tensile force acts on the earthquake-resistant member, the tensile force is transmitted to the steel column through the first joining plate and the first movement-restraint member, and to the steel beam through the second joining plate and the second movement-restraint member.  
   
   
       4 . The joint structure according to  claim 1 , wherein: 
 a notch provided at an end portion of the first joining plate which contacts the first movement-restraint member, and    the first movement-restraint member is engaged with the notch of the first joining plate.    
   
   
       5 . The joint structure according to  claim 1 , wherein 
 a notch is provided at an end portion of the second joining plate which contacts the second movement-restraint member, and    the second movement-restraint member is engaged with the notch of the second joining plate.    
   
   
       6 . The joint structure according to  claim 1 , wherein the first movement-restraint member comprises: 
 a main body fixed to the steel column, and    a stiffening rib disposed on an upper surface of the main body so as to be in a vicinity of the end portion of the first joining plate.    
   
   
       7 . The joint structure for an earthquake-resistant member according to  claim 1 , wherein the second movement-restraint member comprises: 
 a main body fixed to the steel beam, and    a stiffening rib disposed on an upper surface of the main body so as to be in a vicinity of the end portion of the second joining plate.    
   
   
       8 . A construction method for a joint structure associated with an earthquake-resistant member for joining an earthquake-resistant member to an intersect portion of a steel column extending in a substantially vertical direction and a steel beam extending in a substantially horizontal direction, the construction method comprising: 
 locating a first joining plate along the steel column without fixing the first joining plate to the steel column;    fixing a first movement restraint member to the steel column so as to contact an end portion of the first joining plate;    locating a second joining plate along the steel beam without fixing the second joining plate to the steel beam;    fixing a second movement restraint member to the steel beam so as to contact an end portion of the second joining plate; and    joining the earthquake-resistant member to the first joining plate and the second joining plate;    wherein: 
 the first movement-restraint member restrains the first joining plate such that the first joining plate is substantially limited from moving in the direction of the steel column, and  
 the second movement-restraint member restrains the second joining plate so that the second joining plate is substantially limited from moving in the direction of the steel beam.  
   
   
   
       9 . A joint structure associated with an earthquake-resistant member situated at and configured to join an intersect portion of a steel column which extends in a substantially vertical direction and a steel beam which extends in a substantially horizontal direction, the joint structure comprising: 
 a joining plate located approximately along and without being fixed to one of the steel column or the steel beam; and    a movement-restraint member provided on the at least particular one of the steel column or the steel beam, and configured to contact an end portion of the joining plate, the movement-restraint member restraining the joining plate such that the joining plate is substantially limited from moving in the direction of the one of the steel column or the steel beam,    wherein the earthquake-resistant member is joined to the joining plate and another one of the steel column and the steel beam.    
   
   
       10 . A construction method for a joint structure associated with an earthquake-resistant member for joining an earthquake-resistant member to an intersect portion of a steel column extending in a substantially vertical direction and a steel beam extending in a substantially horizontal direction, the construction method comprising: 
 locating a joining plate along one of the steel column or the steel beam without fixing the first joining plate to the one of the steel column or the steel beam;    fixing a movement-restraint member to the one of the steel column or the steel beam so as to contact an end portion of the joining plate; and    joining the earthquake-resistant member to the joining plate and another one of the steel column or the steel beam; wherein the first movement-restraint member restrains the joining plate so that the joining plate is substantially limited from moving in the direction of the one of the steel column or the steel beam.