Finite element method for the rising and the slip of column-plate base for usual connections

Abstract

Abstract. In the present paper, a finite element approach calculating the rising and the relative slip of steel base plate connections is proposed. Two types of connections are studied, the first consists on a base plate welded to the column end and attached to the reinforced concrete foundation by two anchor bolts. These bolts are placed on the major axis of the I shaped section used as column, one anchor bolt on each side of the web. In the second configuration, the connection includes a plate base and four anchor bolts placed out side the flanges of the I shaped section or hallow form. To take in account the real behaviour of this connection, a model by finite elements which considers count geometrical and material no linearties of the contact and cracking in the concrete foundation. To study the rising of the base plate, an approach treating problems of contact-friction between the base plate and the foundation is developed. This approach is based on a unilateral contact law in which a Coulomb friction is added. The numerical resolution is ensured by the increased Lagrangien method. For the behaviour of the concrete foundation, the developed model is based of a compressive elastoplastic model. The heights rising-rotations and the heights rising-slip displacements curves are plotted.

An Experimental Study For Improvement of Joint Detail of Steel Pier - Foundation

“…Meichun Zhu(2010)은 강재와 고강도 콘크리트가 채워진 정사각형 강재기둥의 실험을 통하여 다양한 변수에 따른 강도 와 변형특성을 평가하였다 [7] . M.Hamizi(2011)은 강재 베이 스플레이트의 들림과 상대슬립을 제안하기 위해서 I형 기둥의 거동을 유한요소해석을 통하여 분석하였다 [8] . [9][10] [11] .…”