The structural modelling of deconstructable beams, fabricated using friction-grip shear connection

2014 ◽  
Author(s):  
M. A. Bradford
Keyword(s):  
Structural Modelling ◽  
Shear Connection

STRUCTURAL MODELLING OF REVERSIBLE PHOTODARKENING IN a-AsxSe

1981 ◽  
Vol 42 (C4) ◽  
pp. C4-391-C4-394 ◽  
Author(s):  
R. Grigorovici ◽  
A. Vancu
Keyword(s):  
Structural Modelling

FIRE RESISTACE OF SHEAR CONNECTORS FOR COMPOSITE BEAMS

2020 ◽  
Vol 92 (6) ◽  
pp. 59-65
Author(s):  
G.P. TONKIH ◽  
◽  
D.A. CHESNOKOV ◽  
◽  
Keyword(s):  
Fire Resistance ◽  
Composite Structure ◽  
Composite Structures ◽  
Composite Beams ◽  
Design Codes ◽  
Connection Strength ◽  
Shear Connectors ◽  
Shear Connection ◽  
Capacity Reduction ◽  
Russian Research

Most of Russian research about composite structure fire resistance are dedicated to the composite slab behavior. The composite beams fire resistance had been never investigated in enough volume: the temperature evaluation within the scope of the actual Russian design codes leads to the significant reduction in the shear connection strength. Meanwhile, there no correlation between the strength decreasing and type of the shear connection. The article provides an overview of the relevant researches and offers some approaches which could take into account bearing capacity reduction of the shear connectors within composite structures design.

scholarly journals Experimental Behavior of Steel-Concrete Composite Girders with UHPC-Grout Strip Shear Connection

Buildings ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 182
Author(s):  
Zhi-Qi He ◽  
Changxue Ou ◽  
Fei Tian ◽  
Zhao Liu
Keyword(s):  
High Performance ◽  
High Performance Concrete ◽  
Fatigue Testing ◽  
Ultimate Capacity ◽  
Horizontal Shear ◽  
Interface Failure ◽  
Interface Shear ◽  
Composite Action ◽  
Shear Connection ◽  
Push Out

This paper develops a new type of shear connection for steel-concrete composite bridges using Ultra-High Performance Concrete (UHPC) as the connection grout. The UHPC-grout strip shear connection is fabricated by preforming a roughened slot in the concrete deck slab, welding an embossed steel rib longitudinally to the upper flange of the steel girder, and casting the strip void between the slot and the steel rib with UHPC grout. The structural performance of the new connection was validated by two sets of experimental tests, including push-out testing of shear connectors and static and fatigue testing of composite beams. The results of push-out testing indicate that the UHPC-grout strip shear connection exhibits a significant improvement of ductility, ultimate capacity, and fatigue performance. The interface shear strength of the UHPC-grout strip connection is beyond 15 MPa, which is about three times that of the strip connection using traditional cementitious grouts. The ultimate capacity of the connection is dominated by the interface failure between the embossed steel and the UHPC grout. The results of composite-beam testing indicate that full composite action is developed between the precast decks and the steel beams, and the composite action remained intact after testing for two million load cycles. Finally, the trail design of a prototype bridge shows that this new connection has the potential to meet the requirements for horizontal shear.

scholarly journals Consumer Ethicality Perception and Legitimacy: Competitive Advantages in COVID-19 Crisis

2021 ◽  
pp. 000276422110165
Author(s):  
Gregory Payne ◽  
Alicia Blanco-González ◽  
Giorgia Miotto ◽  
Cristina del-Castillo
Keyword(s):  
New York ◽  
Data Collection ◽  
Purchase Intention ◽  
Brand Management ◽  
Mediation Effect ◽  
Competitive Advantages ◽  
Structural Modelling ◽  
Multigroup Analysis ◽  
Ethical Behaviors ◽  
Brand Meaning

The article aims to analyze the cause–effect relationship between Brand Ethicality Perception (CPE), legitimacy and purchase intention during the COVID-19 first wave, taking into consideration the mediation effect of the country of residence. Data collection was based on a survey launched during the COVID-19 lockdown in Madrid and New York. To analyze the established hypotheses and to test the multigroup analysis, we applied a structural modelling with SmartPLS. The research contributes to the field of brand management, and specifically of ethical branding, since it will analyze how stakeholders’ expectations fulfillment is key to build a consistent and valued brand meaning in crisis’ situations, demonstrating that ethical behaviors are key for gaining corporate legitimacy and, therefore, for improving business performances.

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