Results 11 to 20 of about 107 (91)
Buildings, 2021 This paper aims to examine the nonlinear flexural behavior of continuous RC beam specimens strengthened with fabric-reinforced cementitious matrix (FRCM) composites through experimental testing and numerical modeling.
Nouman Khattak +3 more
doaj +1 more source
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. Therefore, the main purpose of this study is to provide detailed FE simulations for strengthened and unstrengthened steel–concrete composite beams at the sagging and hogging moment ...
Ayman El-Zohairy +4 more
openaire +2 more sources
Time-Varying Evolution Behaviors of Steel–Concrete Composite Girders with Differentiated Connectors
Buildings, 2023 To improve the cracking resistance of a concrete slab in the hogging moment region, a new concept called uplift-restricted and slip-permitted (URSP) connection technology has been proposed.
Yingjie Zhu +4 more
doaj +1 more source
RC beam strengthening using hinge and anchorage approach
Results in Materials, 2020 Retrofitting of existing structures using adhesively bonded plates has been a major growth area in civil engineering and has gained well-deserved popularity over the past few years.
Y.H. Mugahed Amran +6 more
doaj +1 more source
BEHAVIOR OF REINFORCED CONCRETE CONTINUOUS BEAMS STRENGHENED WITH NEAR SURFACE MOUNTED REINFORCEMENT [PDF]
Journal of Engineering Research - Egypt, 2015 Using Near Surface Mounted (NSM) technique for flexural strengthening of reinforced concrete continuous beams became particularly attractive for researchers and applicators.
A. Khalil, Emad Etman, A. El-Masry
doaj +1 more source
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 +5 more
doaj +1 more source
Strengthening of Cutouts in Existing One-Way Spanning R. C. Flat Slabs Using CFRP Sheets
International Journal of Concrete Structures and Materials, 2017 Openings in slabs are usually required for many different applications such as aeriation ducts and air conditioning. Opening in concrete slabs due to cutouts significantly decrease the member stiffness.
Hamdy K. Shehab +2 more
doaj +1 more source
Modelling semi-rigid composite joints with precast hollowcore slabs in hogging moment region
Journal of Constructional Steel Research, 2008 In this paper, using the general purpose software ABAQUS, a three dimensional (3-D) finite element model was built to simulate semi-rigid composite connection with precast hollowcore slabs. 3D continuum elements are used for all parts of the composite connections and the contact conditions between all the components are explicitly modelled.
Fu, F., Lam, D., Ye, J.
openaire +5 more sources
International Journal of Engineering and Technology, 2019 In this study, 3-D finite element models were used to investigate the performance of a continuous composite slab (CCS) with profiled steel sheet strengthened by CFRP laminates in a negative moment region. FE models were validated using available experimental data before being used for parametric studies.
Khalid W. Dahham +2 more
openaire +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 +2 more
wiley +1 more source