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RISDynamic Response of a RC Frame under Column Removal
Publisher: American Society of Civil Engineers
Abstract: Under a collapse scenario, the sudden loss of support causes a dynamic response that can amplify the internal forces in the members and lead to greater damage. This study considered a one-quarter scale, 2-bay, 2-story RC ...
Resistance of Flat-Plate Buildings against Progressive Collapse. II: System Response
Publisher: American Society of Civil Engineers
Abstract: Using a macromodeling approach and alternate path method, dynamic and static analyses are performed to assess the progressive collapse resistance of a multistory reinforced concrete flat-plate building lacking structural ...
Residual Strength of Impact-Damaged CFRP Used to Strengthen Concrete Structures
Publisher: American Society of Civil Engineers
Abstract: Although previous research has demonstrated the improvement in performance of reinforced concrete structures enhanced with externally applied carbon fiber reinforced polymers (CFRP), the effect of transverse impact damage ...
Time-Dependent Behavior of Reinforced Concrete Columns Subjected to High Sustained Loads
Publisher: ASCE
Abstract: Several catastrophic progressive collapses of RC buildings, initiated by column failures, occurred in the past under sustained gravity loads long after the initial construction. To study the near-failure behavior of aged ...
Time-Dependent Compressive Arch Action Capacity of Reinforced Concrete Frame Beams Resisting Progressive Collapse
Publisher: American Society of Civil Engineers
Abstract: Beam compressive arch action (CAA) is an appealing mechanism for reinforced concrete (RC) frames to resist progressive collapse after losing a column during an abnormal event. Past studies have focused predominantly on the ...
Effects of In-Plane Restraint on Progression of Collapse in Flat-Plate Structures
Publisher: American Society of Civil Engineers
Live-Load Effect in Reinforced Concrete Box Culverts under Soil Fill
Publisher: American Society of Civil Engineers
Abstract: The effects of live load in box culverts may be nearly negligible compared with the effects of dead loads when significant fill is placed above the crown of the culvert. The objective of this study was to determine the ...
Resistance of Flat-Plate Buildings against Progressive Collapse. I: Modeling of Slab-Column Connections
Publisher: American Society of Civil Engineers
Abstract: A macromodel for slab-column connections is created for use in the system-level progressive collapse analyses of reinforced concrete flat-plate structures. The proposed model jointly uses shell and connector elements to ...
Design Considerations of Carbon Fiber Anchors
Publisher: American Society of Civil Engineers
Abstract: Carbon fiber-reinforced polymer (CFRP) sheets can be used to strengthen existing reinforced concrete members. However, debonding (separation of the CFRP sheet from the concrete surface) may occur at less than 50% of CFRP ...
Statistical Distribution of Bridge Resistance Using Updated Material Parameters
Publisher: American Society of Civil Engineers
Abstract: Resistance (load-carrying capacity) of a bridge girder is a random variable and can be determined by considering the uncertainty in material, fabrication, and professional/analysis properties. Previous calibrations of load ...