CAJ | 학술논문

运用等值梁法对Ⅱ型地下连续墙接头在施工阶段的受力和变形进行理论分析，并给出了Ⅱ型接头施工过程中内力和变形的计算公式。利用得到的计算方法，计算实际工程中Ⅱ型地下连续墙接头的内力及变形，并通过建立三维非线性有限元模型验证了该计算方法的正确性，分析了上端2种不同约束形式对接头力学性能的影响。分析表明，上端刚接约束比铰接约束接头的内力分布均匀，最大变形小。该方法可为以后该类接头初步预测及检查设计提供参考。
운용등치량법대Ⅱ형지하련속장접두재시공계단적수력화변형진행이론분석，병급출료Ⅱ형접두시공과정중내력화변형적계산공식。이용득도적계산방법，계산실제공정중Ⅱ형지하련속장접두적내력급변형，병통과건립삼유비선성유한원모형험증료해계산방법적정학성，분석료상단2충불동약속형식대접두역학성능적영향。분석표명，상단강접약속비교접약속접두적내력분포균균，최대변형소。해방법가위이후해류접두초보예측급검사설계제공삼고。
By using equivalent beam method,the force and deformation of a type Ⅱ joint of dia-phram wall in the construction stage are theoretically analyzed,and a simplified calculation method of the forces and deformation of a type Ⅱ joint is proposed based on the analysis of the construction sequences of joint.Using the calculation method,the force and deformation of a type Ⅱ joint in the practical project are calculated,and the proposed method is verified through the three-dimensional nonlinear finite element method.Then,the effect of two kinds of tupper end constraints on the joint mechanical properties is analyzed.The results show that the rigid constraint can improve the stress state of joint,and make the maximum deformation of joint smaller than simple support.The pro-posed method can be used to preliminarily predict and check the final results of design.