STEEL REINFORCEMENT 



279 



loops are secured to the main reinforcing rods by means of 

 metal clips c. 



FIG. 11 



Shear-Frame System of Steel Reinforcement. The shear- 

 frame system is employed to resist the negative, or reversed, 

 bending moments that occur at the points of support of 

 monolithic beams and girders. This type of reinforcement 

 consists of a built-up frame constructed as shown in Fig. 12. 

 The shear frame consists of straight top rods a and bent 

 bottom rods b. These two sets of rods are securely clamped 

 together by means of flat bar-iron plates, or clips, c, which 

 also act as stirrups. Additional stirrups are provided at g, 



FIG. 12 



and where the top and bottom rods join they are firmly 

 fastened together by means of special clamps f. 



