On the assessment of a new steel bolted flush end-plate beam splice connection

Abstract

Abstract. This paper describes the development of a numerical model with the ability to simulate and analyze the mechanical behavior of di erent types of Double Bolted Flush End-plate Beam (DBFEB) splice connections, which thus far has not been reported. Moreover, Bolted Flush End-plate Beam (BFEB) splice connections have been investigated for calibration of the results using Finite Element Modeling (FEM). The initial sti ness, rotation capacity, strength ratio, ductility, failure mode, and the performance of these two types of connections have been investigated and compared with each other with respect to FEMA 356. Also, classi cation of these two types of connections is performed by Eurocode 3 recommendation. The analyses have been calibrated and converted to experimental and analytical results, which are also brie y reviewed in this paper. Also, due to the multitude of in uencing parameters, an analytical description of the behavior of DBFEB connections has been delivered based on component method. Moreover, several parametric analyses on the Initial Rotational Sti ness (S ini ) of DBFEB connection have been conducted using regression analysis of FEM results.

Experimental behaviour of bolted connections with stiffeners

“…4). The joint ductility related to the area between the rotation of the plastic flexural resistance of the joint θ M.Rd of the moment-rotation curve and the maximum rotation θ Cd [10] is (3) In this way, the maximum ductility levels can be derived as (4) For major beam-to-column joints with end-plate connections, the initial rotational stiffness and the joint's flexural plastic resistance are well defined in Eurocode 3 [13]. .90 % respectively with increasing stiffener thickness.…”

“…The connection characteristics can be interpreted by a moment-rotation curve, which represents three main properties: rotation capacity, resistance and stiffness. The moment-rotation curves define the actual behaviour of beam-to-column connections [3], [4]. Several researchers have investigated the behaviour of semi-rigid connections in the last decade.…”

Impact of nonlinearity on bolt forces in multi-bolted joints: A case of the assembly stage

“…At the same time, however, they are the most time consuming models in calculations. 3D modeling strategies can be summarized in the following order: 3 -use of a uniform component model linking together the bolt head, the bolt shank and the nut [14][15][16][17], -use of a model consisting of the bolt head and the shank without the tread [18,19], -use of a full model consisting of the bolt head, the bolt shank and the nut including the tread [20].…”