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A platform for research: civil engineering, architecture and urbanism
Behavior of Biaxially Loaded Slab-Column Connections with Shear Studs
In this paper, results are presented from four non-prestressed concrete slab-column connection subassemblies tested under simulated gravity and earthquake-type loading. Each specimen consisted of a large-scale first-story interior slab-column connection reinforced with headed shear studs, loaded to a gravity-shear ratio of 50%, and subjected to biaxial lateral displacements. The slabs, which were nominally identical aside from the shear stud reinforcement design, had a flexural reinforcement ratio in the column strip, based on the effective depth, of 0.7%. Shear stud reinforcement in the test specimens varied in terms of amount and spacing, both between and within stud peripheral lines. All four specimens exhibited drift capacities significantly lower than shown by previous studies. Although the lateral strength of the specimens was governed by the flexural capacity of the slab, severe concrete degradation ultimately limited the drift capacity of the connections. Signs of punching-related damage were first observed during the cycle to 1.85% drift in each loading direction.
Behavior of Biaxially Loaded Slab-Column Connections with Shear Studs
In this paper, results are presented from four non-prestressed concrete slab-column connection subassemblies tested under simulated gravity and earthquake-type loading. Each specimen consisted of a large-scale first-story interior slab-column connection reinforced with headed shear studs, loaded to a gravity-shear ratio of 50%, and subjected to biaxial lateral displacements. The slabs, which were nominally identical aside from the shear stud reinforcement design, had a flexural reinforcement ratio in the column strip, based on the effective depth, of 0.7%. Shear stud reinforcement in the test specimens varied in terms of amount and spacing, both between and within stud peripheral lines. All four specimens exhibited drift capacities significantly lower than shown by previous studies. Although the lateral strength of the specimens was governed by the flexural capacity of the slab, severe concrete degradation ultimately limited the drift capacity of the connections. Signs of punching-related damage were first observed during the cycle to 1.85% drift in each loading direction.
Behavior of Biaxially Loaded Slab-Column Connections with Shear Studs
Eric M Matzke (author) / Rémy D Lequesne / Gustavo J Parra-Montesinos / Carol K Shield
ACI structural journal ; 112
2015
Article (Journal)
English
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