Results 151 to 160 of about 1,521 (193)

Seismic Rehabilitation of Slab-Column Connections

ACI Structural Journal, 2010
The primary focus of the study reported in this paper is seismic rehabilitation of slab-column connections damaged under the application of lateral displacement excursions. Seven 2/3-scale interior slab-column connections were tested to quantify the effects of earthquake damage and the effectiveness of various rehabilitation techniques on repairing ...
openaire   +1 more source

Shear–moment interaction of slab–column connections

Canadian Journal of Civil Engineering, 1988
The factors that influence the shear–moment interaction of slab–column connections are examined. The Canadian design code, CAN3-A23.3-M84, is evaluated on the basis of its agreement with the observed connection behavior. Other approaches to modelling slab–column connections are examined.
S.D.B. Alexander, S.H. Simmonds
openaire   +1 more source

Rehabilitation of reinforced concrete slab–column connections

Canadian Journal of Civil Engineering, 2002
The paper presents work on punching shear rehabilitation and strengthening of existing slab–column connections. Four full-scale specimens representing slab–column edge connections were built and tested to failure. Three slabs were then repaired and strengthened and tested again.
Ehab F El-Salakawy, Maria Anna Polak, Khaled A Soudki   +2 more
openaire   +1 more source

Moment Transfer at Interior Slab-Column Connections

ACI Structural Journal, 2003
The strength of slab-column connections is assessed, under the U.S. design standard ACI 318, using an interaction equation that includes contributions from both shear and unbalanced moment. Based on a reexamination of tests reported by Hanson and Hanson, the unbalanced moment at interior connections is shown to contribute far less to transverse shear ...
openaire   +1 more source

Lattice Shear Reinforcement for Slab-Column Connections

ACI Structural Journal, 2007
The research presented herein was carried out with the financial support of Dongbu Corporation Jeil Technos Corporation, and The Ministry of Construction & Transportation of Korea (04R&D C02-02).
openaire   +1 more source

Repair and Strengthening of Reinforced Concrete Slab-Column Connections

IABSE Congress, Chicago 2008: Creating and Renewing Urban Structures – Tall Buildings, Bridges and Infrastructure, 2008
<p>Seven 2/3-scale interior slab-column connections were tested to quantify the effects of earthquake damage, and the efficiency of various rehabilitation techniques on repairing seismic damaged slab- column connections and improving the two-way shear strength of deficient connections. Three alternatives for rehabilitating slab-column connections
null Widianto, Oguzhan Bayrak, James Jirsa   +2 more
openaire   +1 more source

Seismic Design Criteria for Slab-Column Connections

ACI Structural Journal, 2007
Two-way slabs without beams are popular floor systems because of their relatively simple formwork and the potential for shorter story heights. Earthquakes, however, have demonstrated that slab-column frames are vulnerable to brittle punching shear failures in the slab-column connection region and dropping of the slab, which are costly to repair.
openaire   +1 more source

Moment Transfer by Shear in Slab-Column Connections

ACI Structural Journal, 1996
A bending moment M u transferred at a slab-column connection is resisted at the slab critical sections by flexure and shear. The ACI 318-89 Building Code 1 and the Canadian Standard CAN3-A23.3-M84 2 give an empirical equation for the fraction γ V of the moment M u to be transferred by shear at the slab critical section at d/2 from the column face.
openaire   +1 more source

Cyclic Lateral Loading of Nonductile Slab-Column Connections

ACI Structural Journal, 2006
Flat slabs with discontinuous bottom reinforcement are susceptible to progressive collapse if punching shear failure occurs at a slab-column connection. Many such failures have occurred in past earthquakes, resulting in significant loss of life. The evaluation of older flat-slab buildings must include a realistic prediction of the response of the slab ...
openaire   +1 more source

Strength of Slab-Column Connections with Shear and Unbalanced Flexure

Journal of the Structural Division, 1976
Tests were conducted on eight 1/2-scale models of reinforced concrete interior flat plate-column connections transferring shear and unbalanced moment from gravity and simulated seismic loading. The slab at the connection contained either no shear reinforcement or shear reinforcement in the form of either cranked bars, structural steel shearhead or ...
Robert Park, Shafiqul Islam
openaire   +1 more source