Shear strength of the connection between a steel coupling beam and a reinforced concrete shear wall in a hybrid wall system

Enhancing performance of buildings in seismic zone with structural metal dampers

“…In order to make the proposed steel link beams coordinate in concrete coupled shear wall structures, connection between coupling beams and walls should be well designed and detailed. Most researches to date focus on the method of embedding a certain length of link beams into the concrete walls (Park et al 2005(Park et al , 2006Fortney et al 2007), as indicated in Figure 21(a). Also, there is another kind of connection detail in which structural steel columns could be embedded in the wall boundary elements and connected with the steel link beams with moment connections, as shown in Figure 21(b).…”

Seismic behaviour of coupling beams in a hybrid coupled shear walls

“…The degree of conservatism of Eq. (20) increases as the width of the embedded Table 1 Test results [2] Specimens steel coupling beam section decreases. This increase in conservatism must be due to an increase in the concrete bearing stress as the ratio of the width of the embedded steel coupling beam, b, to the thickness of the shear wall decreases.…”

“…Structural steel coupling beams provide a viable alternative to reinforced concrete coupling beams, particularly where height restrictions do not permit the use of deep reinforced concrete or composite coupling beams, or where the required capacity and stiffness cannot be developed economically using a conventionally reinforced concrete coupling beam. Previous researchers [1][2][3][4][5][6] have shown that the lateral stiffness and strength of concrete shear walls can be significantly increased by coupling the shear walls using embedded steel beams. The critical design questions for hybrid coupled shear walls are: (1) how to develop the model for calculating the embedment lengths of the steel coupling beams, taking into account the connection details, and (2) how to design the steel coupling beams for the desired behaviour of the hybrid coupled shear wall system.…”

Investigation on the Structural Behavior of Shear Walls with Steel Truss Coupling Beams under Seismic Loading

“…Nonlinear seismic response of walls coupled with steel and concrete beams was also investigated [4][5][6]; the research demonstrated the advantages of using steel beams to couple reinforced concrete walls. Experiments and simulations have been conducted on the joints of steel CBs and shear walls [7][8][9][10][11], and the results demonstrated that the anchorage has important impacts on the stiffness degradation; the shear yield style steel CB has excellent ductility performance and energy performance, construction convenient, and easy maintenance and replacement, and especially the maintenance can be easily replaced after the earthquake. Wu [12] investigated the steel CB and concrete shear wall joints by employing experiments and finite element analysis, the failure mode of joints, strain distribution, bearing capacity, CB size, concrete strength, ductility, and hysteretic behaviors were studied.…”