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插销试验方法简单,操作方便,且能定量评定钢材的冷裂倾向,但其试验条件与实际工程结构中产生裂纹的情况有较大差异。平板刚性拘束裂纹(PRRC)试验能够反映实际结构的受力情况,并可用实测的临界拘束应力(或临界拘束度)作为冷裂纹的定量
The plug test method is simple, easy to operate, and can quantitatively assess the cold cracking tendency of steel, but the test conditions and the actual engineering structure cracks are quite different. The plate rigid restraining crack (PRRC) test can reflect the actual structure of the force situation, and can be measured by the actual restraint stress (or critical restraint) as a quantitative measure of cold cracks