An Experimental Study of Welded Bar Sleeve Wall Panel Connection under Tensile, Shear, and Flexural Loads

Abstract

This paper presents an experimental study of a new grouted splice connection for wall panels, called Welded Bar Sleeve (WBS). The connections were made from steel pipes and tested with incremental tensile, shear and flexural loads until failure. The aim is to determine the behaviour of the connection under the three load cases. For this, the connections are evaluated in terms of the load-displacement responses, ultimate capacities, ductility responses and some feasibility assessment criteria. WBS was found to provide sufficient strength at the bar embedded length of 8, 8 and 11 times the bar diameter under tensile, shear and flexural loads, respectively. It is effective under tension, but could only service up to 1/3 of its ultimate shear capacity. Flexural load is the most critical load case for the connection. For this, further enhancements are required when subjected to shear and flexural loads.

Behaviour of Precast Concrete Beam-to-Column Connection with SHS Hidden Corbel Subjected to Monotonic Load

“…b) C2: The connection should be ductile for survival purposes. Thus, the ductility ratio, Rdc, should be at least 4.0 for the low-moderate seismic region (Soudki, 1994, Ling et al, 2017 where ϕu is the rotation of connection at the ultimate state (milli-rad) and ϕd is the designed rotation of connection beam (milli-rad) c) C3: The connection should not fail earlier than the beam. Therefore, the ultimate rotation of the connection should be greater than the allowable rotation of the beam, presumably at least 3 times more.…”

Wall to Wall Horizontal Connection for Precast Concrete Structures

“…Many researchers such [1,8,10] have carried out extensive researches on investigating the behaviors of precast wall to wall vertical connection compare to wall to wall horizontal connection. In the current decade, few types of wall to wall horizontal connections have been introduced to the construction industry such loop connection, wire loop and U-shape steel channel.…”

“…Precast concrete wall is one of the prefabricated components of high demands in the construction industry especially in residential buildings as it combines the benefits of rapid speed of construction, good quality control and minimum labour intensity at the construction site. In Malaysia, precast concrete structure using prefabricated components has gained its popularity because of several advantages such as high quality of structural prefabricated components, less labour intensity at the construction site and shorter completion time of a project [8]. However, the connection of precast wall is a key factor as it provides the structure integrity and robustness of the overall structural system.…”

Mechanical Analysis of Grouted Sleeve Lapping Connector

“…Tullini and Minghini [11] conducted an experimental research on the behavior of precast reinforced concrete column-to-column connections made with grouted sleeve splices in Italy. Ling et al [12] studied the behavior of the precast concrete wall panels, which was connected by a grouted splice connector in Malaysia. Figure 1 is a sketch of a vertically-connected precast concrete shear wall system with a grouted splice connector.…”