CAJ | 학술논문

采用三维非线性有限元分析方法，考虑钢筋和混凝土的联合作用，对三峡厂房坝段引水管道孔口配筋方案进行计算研究，求出了设计工况下引水管道孔口周围混凝土和钢筋的开裂和屈服范围。通过逐级加大孔内水压力强度，求得钢筋应力达到屈服时的内水压力超载系数，用以估计厂房坝段孔口配筋后的强度安全度。
채용삼유비선성유한원분석방법，고필강근화혼응토적연합작용，대삼협엄방패단인수관도공구배근방안진행계산연구，구출료설계공황하인수관도공구주위혼응토화강근적개렬화굴복범위。통과축급가대공내수압력강도，구득강근응력체도굴복시적내수압력초재계수，용이고계엄방패단공구배근후적강도안전도。
The reinforcement arrangement in the opening of diversion pipe in the powerhouse dam section of Three Gorges Project was calculated and studied by using the three-dimensional non-linear finite analysis method and taking the joint action of steel bar and concrete into account. The scope of crack and yielding of concrete and steel bar in the surrounding of the opening of diversion pipe under the design working conditions was got. Through increasing gradually the water pressure in the opening, the overload coefficient of internal water pressure was got when the stresses of steel bar reaches yielding limit, in order to assess the safety degree of the strength of the opening of powerhouse dam section after reinforcement.