CAJ | 학술논문

利用验算点法（即JC法）求解可靠指标时，由于设计验算点与可靠指标之间的相互耦合、制约，给求解带来一定的难度。利用最大似然原理，在满足极限状态方程的条件下，提出了确定可靠性指标和验算点的最大似然方法，该方法相对比较简洁，求解速度快，能够满足目前工程上的需要。利用加权最小二乘法，提出了一种求解可靠性指标的新方法。通过文中给出的工程算例可以看出，方法在求解可靠性指标及与其相对应的验算点方面是可行的，大大简化了求解过程，避免了传统方法繁琐的迭代，新的可靠性指标更精确，更安全。
이용험산점법（즉JC법）구해가고지표시，유우설계험산점여가고지표지간적상호우합、제약，급구해대래일정적난도。이용최대사연원리，재만족겁한상태방정적조건하，제출료학정가고성지표화험산점적최대사연방법，해방법상대비교간길，구해속도쾌，능구만족목전공정상적수요。이용가권최소이승법，제출료일충구해가고성지표적신방법。통과문중급출적공정산례가이간출，방법재구해가고성지표급여기상대응적험산점방면시가행적，대대간화료구해과정，피면료전통방법번쇄적질대，신적가고성지표경정학，경안전。
Because of the intercoordination and restriction between designing checking point and reliability index ,it brings some difficulties to the reliability index for solution with checking point method (JC meth-od) .In the paper ,the maximum likelihood method of determining the reliability index and the checking point is proposed with maximum likelihood theory under the condition of meeting limit state equation .This method is relatively simple and rapidly solution ,it can meet the present engineering requirements .The method of solving reliability index is put forward by using the weighted least require method .Seen from the example in the paper ,this method is feasible to solve reliability index and it’s corresponding checking point .The solving process is simplified ;the tedious iteration of traditional method is avoided .The reliabili-ty index of this paper is more precise and secure than the traditional method .