Bridge Girder Launcher

We design the bridge girder launcher according to the rules of the newest machinery and crane in China, the rules are following: 
● 《Cranes--Test code and procedures》       GB5905   
● 《Safety regulations for hoisting machinery》  GB6067     《Code for design of steel structures》       GB50017 
● 《Safety technology specification for special equipment》 TSG Q7002、Q0002    
● 《Code for construction and acceptance of steel structure》GB50205     
● 《Standard for quality inspection and evaluation of steel structure engineering》            GB50221    
● 《Weld Outer Dimensions for Steel Construction》GB10854 
● 《Code for construction and acceptance of electric equipment installation engineering》      GB232    
● 《General technical requirements of assembly》  JB/ZQ400.9  
● 《Mechanical properties of fasteners》     GB3098

● Technical  index；       
 Safety factor    1.5      
 Using grade：    U3      
 Load state：   moderate      
 Working grade of the whole machine： A3     
 Working grade of the mechanism：M4     
Working condition and requirements of design etc.
● Calculation analysis and check-calculation of the whole structure According to technology condition of design of crane, we confirm the construction condition, and then calculate and analyze the strength, stiffness and stability. 
After the classical calculation, we start the calculating work of design of steel structure, and adopt the finite element analysis, the load applied to models respectively, and then calculating and analyzing beam element and plate element. Finally, the authoritative department will check and calculate again.