Uhpc shear key
WebHeaded stud connectors play a key role in steel- ultra-high performance concrete (UHPC) composite slab, which has many applications in long-span bridges. ... It can be found that the failure mode of the specimens would change from stud shear fracture to UHPC slab splitting broken as the stud diameter was increased from 13 mm to 16 mm and 19 mm. ... WebIn the FE model, the authors beams and 127 mm into the UHPC shear keys and were spaced at assumed that there was no adhesion or friction at the interfaces 203 mm in the longitudinal direction. To evaluate the field …
Uhpc shear key
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WebUHPC shear keys with the transverse diaphragms were adequate to achieve monolithic action across the width of the bridge model. 12In addition, transverse posttensioning forces were effective in restoring the structural integrity of the bridge model when cracks were 13artificially induced in the shear key joints. WebIn precast UHPC segmental beams, the shear characteristics of shear keys have become a common concern due to the lack of corresponding specifications. Therefore, by using the finite element software ABAQUS, the direct shear performance of UHPC can be simulated, with three main research parameters included: shear area, lateral stress and joint type.
Web18 Feb 2024 · shear key and removal of the original grouting material. New grout should be introduced in a manner that successfully re-seals the joint by establishing a strong bond … Web13 Apr 2024 · This paper presents a numerical study on the static behavior and cyclic behavior of UHPC-filled steel tube (UHPCFST) columns. A novel fiber element model is …
Web4 Apr 2024 · Ultrahigh-performance concrete (UHPC) has been adopted as a new grout material for connections between bridge components. However, there is not yet any … Webproprietary UHPC mixtures provides an economical and sustainable alternative to proprietary products. In comparison to other proprietary mixtures, locally produced UHPC has a decrease in cost of anywhere from 10 to 70% [5]. To evaluate UHPC for potential use as a grout in shear keys, bond between UHPC and substrate concrete was studied.
WebResults on UHPC shear key performance and durability will also be given to the SCDOT. iv ACKNOWLEDGMENTS I want to thank and express my gratitude to all those individuals …
WebUltra-high-performance concrete (UHPC) exhibits outstanding compressive strength and bond strength with rebars and strands; thus, the usage of UHPC in the joint core area will reduce the amount of transverse reinforcement and shorten the anchoring length of beam rebars as well as strands significantly. buds class 64WebUltra-high performance concrete (UHPC) is an advanced material which shows high compressive strength, tensile resistance, toughness and durability whe… buds class 62WebWith its superior strength and durability, ultrahigh-performance concrete (UHPC) has been used as an alternative grout material to reduce shear key cracking and enhance load … buds class 49Web27 Oct 2024 · Ultra-high performance concrete (UHPC) is currently regarded as a promising cement-based material in the field of structure reinforcement [4] [5] [6] as it gains ultra … buds class 71WebThe UHPC shear key and transverse shear reinforcement bars fully transferred the load through the joints due to high bond strength of UHPC. The maximum relative … buds class 7101WebShear keys are used in adjacent girder superstructures to produce monolithic behavior and load transfer across the structure. Shear key durability is a concern since shear key degradation can jeopardize the integrity of the structure. buds class 716Web1 Jan 2024 · Highlights Specimens were cast with the box beams and UHPC shear keys of a real bridge. Cohesion and Load is not the critical factor that causes bond failure at beam … cringy punch lines