The Effects of Structural Parameters on the Restraint of Large-scale Rigid Sample Cracking Test by Numerical Analysis

Effects of thickness of testing plate,and strengthening rib,span length of restraint weld on the restraint of large-scale rigid sample cracking test have been investigated by finite element numerical computation.The results show that the restraint increases approximately in direct proportion with the increment of thickness of testing plate and strengthening rib,their absolute values of proportion factor are 120(N/mm·mm)/mm and 18(N/mm·mm)/mm respectively.The restraint decreases approximately in inverse proportion with the increment of span length of restraint weld,and it's absolute value of proportion factor is 7(N/mm·mm)/mm.