Results 21 to 30 of about 223 (200)

Numerical Modeling and Analysis of Strengthened Steel–Concrete Composite Beams in Sagging and Hogging Moment Regions

CivilEng, 2023
Strengthening of composite beams is highly needed to upgrade the capacities of existing beams. The strengthening methods can be classified as active or passive techniques.
Ayman El-Zohairy, Suzan Mustafa, Hesham Shaaban, Hani Salim, Abbas A. Allawi   +4 more
doaj   +1 more source

Experimental Behavior of the Curved Continuous Twin I-Girder Composite Bridge with a Precast Concrete Slab Subjected to Bending, Shear, and Torsion

Advances in Civil Engineering, 2020
In order to investigate the mechanical behavior, ultimate load carrying capacity, and failure mode of the intact curved continuous twin I-girder composite bridge (TGCB) with a precast concrete slab, one curved continuous composite bridge model with a ...
Chuandong Shen, Yifan Song, Lei Yan, Yuan Li, Xueli Wang, Shuanhai He   +5 more
doaj   +1 more source

Protection Motivation Theory and Farmers' Participation in Futures Markets: Evidence From Germany

Agribusiness, EarlyView.
ABSTRACT This study examines why German farmers show limited adoption of commodity futures contracts despite substantial price volatility, applying Protection Motivation Theory (PMT) to understand the cognitive processes driving participation decisions in futures markets. Survey data from 303 German farmers collected in 2024 were analyzed using Partial
Hendrik Wever, Marius Michels, Oliver Musshoff   +2 more
wiley   +1 more source

Causal analysis of trade loss from pathogens: A global study of foot and mouth disease impacts on meat exports

American Journal of Agricultural Economics, EarlyView.
Abstract Our general interest is in global trade loss from livestock pathogens, specifically exports. We adopt a causal inference approach that considers animal disease outbreaks over time as non‐staggered binary treatments with the potential for switching in (infection) and out of treatment (recovery) within the sample period. The outcome evolution of
Mohammad Maksudur Rahman, Thomas L. Marsh   +1 more
wiley   +1 more source

STATIC STRUCTURAL PERFORMANCE OF CONTINUOUS COMPOSITE SLAB STRENGTHENED BY CFRP LAMINATE IN THE HOGGING MOMENT REGION [PDF]

Journal of Engineering Science and Technology, 2018
The performance of continuous composite deck slab (CCS) strengthened with unidirectional carbon fibre-reinforced polymer (CFRP) laminate in the hogging region was investigated in this study, where the CFRP worked as an external reinforcement in the ...
KHALID W. DAHHAM, SHAHRIZAN BAHAROM, WAN HAMIDON W. BADARUZZAMAN, NORHASNI MUHAMMAD, AHMED W. AL-ZAND   +4 more
doaj  

Lateral-distortional buckling of continuous steel-concrete composite beam

Revista IBRACON de Estruturas e Materiais, 2018
In hogging bending moment regions of continuous composite beams the collapse by lateral-distortional buckling (LDB) can occur. The design against LDB according to ABNT NBR 8800:2008 begins with the determination of the elastic critical moment, which ...
T. V. AMARAL, J. P. S. OLIVEIRA, A. F. G. CALENZANI, F.B. TEIXEIRA   +3 more
doaj   +2 more sources

MECHANICAL BEHAVIOUR OF COMPOSITE GIRDERS SUBJECTED TO HOGGING MOMENT: EXPERIMENTAL STUDY

STRUCTURAL ENGINEERING / EARTHQUAKE ENGINEERING, 2011
In continuous composite steel-concrete structures, cracking of the concrete slab in the hogging moment region decreases the global stiffness of composite steel-concrete structures and reduces the effect of continuity, thus making the structural behaviour highly nonlinear even for low stress levels, so special consideration is necessary. An experimental
LIN, Weiwei, YODA, Teruhiko
openaire   +3 more sources

The Herfindahl neutral point: A firm‐level threshold for managing market concentration with evidence from US hog packing

American Journal of Agricultural Economics, EarlyView.
Abstract This paper derives a firm‐level threshold, the Herfindahl Neutral Point, from the standard concentration index used in merger review. At this threshold, a marginal expansion leaves the index unchanged. Firms below the threshold reduce concentration when they expand; firms above it increase concentration.
Andrew J. Keller, Krishna P. Paudel
wiley   +1 more source

Risk management externalities in agrifood supply chains

American Journal of Agricultural Economics, EarlyView.
Abstract Firms may under‐ or over‐invest in risk management from the social planner's perspective, resulting in a negative externality on other economic agents in the supply chain. The externality of risk management is particularly relevant for agrifood supply chains, which frequently experience disruptions and play a primary role in preventing major ...
Jeffrey Hadachek, Meilin Ma
wiley   +1 more source

Sustaining Circular Innovation Under Volatile Market Conditions: The Critical Role of Industry Platforms

Business Strategy and the Environment, EarlyView.
ABSTRACT While industry platforms are widely recognized as enablers of circular innovation, we still know little about how they evolve to scale and sustain innovation as economic conditions tighten and circular economy funding schemes become more selective.
Eva Qi Wang, Julia A. Fehrer, Jonathan J. Baker, Roderick J. Brodie   +3 more
wiley   +1 more source