197. The spacing of stirrups in a rectangular beam is-
                
             
         
        
                                                                        
                            
                                
                            
                            
                                
                            
                            
                                
                            
                            kept constant throughout the beam 
                         
                    
                    
                                                                                
                            
                                
                            
                            
                                
                            
                            
                                
                            
                            decrease towards the centre of the beam
                         
                    
                    
                                                                                
                    
                    
                                                                                
                            
                                
                            
                            
                                
                            
                            
                                
                            
                            increase at the centre of the beam
                         
                    
                    
                                                         
                    
                            
                    ব্যাখ্যা: ব্যাখ্যা: Maximum spacing of vertical stirrups in a rectangle beam is at its midspan. It's because the shear force at the midspan is very less. The spacing of vertical stirrups is minimum near the supports due to maximum shear force at the supports.