Uhpc shear key

Author: hnhg

August undefined, 2024

Web7 Jul 2024 · This paper will focus on experimental and analytical investigations into the shear capacity of precast concrete (PC) shear keys with ultrahigh-performance concrete … 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 Keys in Concrete Bridge Superstructures Zenodo

Web22 Oct 2024 · Studies have shown that UHPC has high bond strengths and that bond between the shear key and the superstructure element is affected primarily by the … lea toussaint

Al Rikabi Effects of Interface Roughness on Shear Key …

Web18 Apr 2024 · testing of UHPC shear keys. The development of this technology expands the body of scientific knowledge in transportation engineering bridge engineering. … 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 … Web1 Jun 2024 · The UHPC connection enhanced both shear and tensile strengths of the key, while crack widths were minimized by the dowel reinforcement. The authors suggested … lea toran jenner

Decked bulb-T beam bridge system with UHPC shear key joints

Effects of Shape and Reinforcement Details of UHPC Shear Key on …

Web30 Jun 2024 · The average shear strength for a key in multiple-keyed dry joints was always found to be less than those in single-keyed dry joints due to imperfections in fitting of … Web49 Alongside the UHPC, shear stud connections also play a key role in improving 50 structural action. Studs embedded in thin steel fiber-reinforced concrete slabs have … lea tyrallaWebUHPC 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. lea uhlmann

"WebUHPC is engaged as a key structural element within the composite connection system.26 The field-cast UHPC engages discrete connectors both in the deck and on the girder and, … " - Uhpc shear key

Uhpc shear key

Materials Free Full-Text Experimental Study on Seismic …

Web24 Sep 2024 · As explained earlier, shear keys having a 30 mm-height or shorter were used to investigate the improved performance of UHPC. Analysis of Test Results Failure Mode … WebThe combination of ultra-high-performance concrete (UHPC) and nickel and titanium (NiTi) shape memory alloy (SMA) improves the behavior of building structures by increasing both their ductility and dissipation energy due to the low …

Did you know?

WebThe 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 … WebSeveral tests were conducted to evaluate the potential of UHPC as a shear key grout material. Bond strength between UHPC grout and substrate concrete was evaluated using …

http://qkxb.hut.edu.cn/zk/ch/reader/view_abstract.aspx?file_no=200205&flag=1 WebUltra-high performance concrete (UHPC) is an advanced material which shows high compressive strength, tensile resistance, toughness and durability whe…

WebThis research investigated the use of locally produced ultra-high performance concrete (UHPC) as a grouting material to repair deteriorated shear keys. Shear keys are used in … Web1 Jan 2024 · This work investigates the potential for using non-proprietary ultra-high performance concrete (UHPC) as a grouting material for repair of deteriorated shear keys …

Web1 Oct 2024 · In present study, the shear performance of UHPC multi-keyed epoxy joint was experimentally investigated based on a series of direct shear tests on 18 joint specimens. The effects of Vf in UHPC, number of shear keys, confining stress, depth of shear key and joint type were systematically analyzed.

WebBecause UHPC is a relatively fluid material, it will ooze out of formwork if not contained in all directions. The contractor elected to use mastic to seal the shear key joints and poured … lea uutsaluWebHeaded 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. ... lea tunnelWeb1 Aug 2024 · This research investigated the use of locally produced ultra-high performance concrete (UHPC) as a grouting material to repair deteriorated shear keys. Shear keys are … lea tuohyWebUHPC Joints: Shear Key Between Girders Original Title: UHPC Shear Key Uploaded by c1366 Description: UHPC shear key section Copyright: © All Rights Reserved Available Formats … lea tullenaarWebWith 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 … lea tunnellWebUHPC shear key in attempt to enhance load transf er mechanism and increase the ultimate strength capacity. Finally, Hussein et al., ( 2024b) experimentally investigated the … lea tysonWeb1 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 … lea uusitalo