the effect of concrete shear key on the performance of

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The effect of concrete shear key on the performance of ...

Jun 01, 2016  The effectiveness of shear key in resisting lateral impact loads was analysed by comparing the performance of the two groups of segmental columns. The testing results revealed that by introducing concrete shear key to segmental column, the relative displacement between adjacent segments could be effectively reduced.

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The effect of concrete shear key on the performance of ...

Request PDF The effect of concrete shear key on the performance of segmental columns subjected to impact loading Conventional precast segmental columns with seismic resistance design consist ...

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Effect of exterior concrete shear keys on the seismic ...

Sep 01, 2018  The seismic performance of concrete shear keys has been extensively studied experimentally and numerically. Megally et al. carried out experimental studies on the failure modes of external shear keys at bridge abutments under earthquake loads. Three types of failure modes for shear keys, namely diagonal shear failure, flexural failure and sliding shear failure were identified for

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Effects of Interface Roughness on Shear Key Performance of ...

Effects of Interface Roughness on Shear Key Performance of Ultra-High Performance Concrete in Adjacent Box Girder Bridges Husam H. Hussein; Fouad T. Al Rikabi; and Shad M. Sargand 4 UHPC joint, and the specimens were 127 mm (5 in) deep (Hussein et al., 2017a, 2018b).

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Effect of exterior concrete shear keys on the seismic ...

Effect of exterior concrete shear keys on the seismic performance of laminated rubber bearing-supported highway bridges in China. ... However, the past 2008 Wenchuan earthquake just highlighted the roles of bearings and shear keys in the performance of highway bridges. The bearing sliding as well as shear keys failure were typically observed ...

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(PDF) Effect of exterior concrete shear keys on the ...

Effect of exterior concrete shear keys on the seismic performance of laminated rubber bearing-supported highway bridges in China September 2018 Soil Dynamics and Earthquake Engineering 112

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The mechanical performance of concrete shear key for ...

Aug 21, 2020  The mechanical performance of concrete connection plays an important role in the response of precast concrete structures. Unlike conventional small concrete shear key which is mainly to help with alignment at installation, large concrete shear keys have been often designed in recent engineering practice to improve joint shear resistance.

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Effects of Interface Roughness on Shear Key Performance of ...

Jun 02, 2019  Although ultra-high-performance concrete (UHPC) has been used for joints in the highway bridges to eliminate the longitudinal cracks in shear keys, there is limited information regarding the effect of bond strength between UHPC and high strength concrete (HSC) on the load transfer mechanism in the transverse direction between adjacent box girders.

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INFLUENCE OF SHEAR KEY PERFORMANCE ON THE

corresponding performance. - Review the shear key improvements researched and implemented on these bridges and the effects they have on the system. - Perform a sensitivity study to determine how shear key performance, traffic volume and the corrosive environment affect the service life of an adjacent beam bridge.

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The mechanical performance of concrete shear key for ...

Aug 21, 2020  The mechanical performance of concrete connection plays an important role in the response of precast concrete structures. Unlike conventional small concrete shear key which is mainly to help with alignment at installation, large concrete shear keys have been often designed in recent engineering practice to improve joint shear resistance.

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Shear Capacity of Precast Concrete Shear Keys with ...

Jul 07, 2021  This paper will focus on experimental and analytical investigations into the shear capacity of precast concrete (PC) shear keys with ultrahigh-performance concrete (UHPC) as the connection (UHPC–connection PC shear keys).

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Effects of Key Parameters on The Performance of Concrete ...

BibTeX @MISC{Sherman11effectsof, author = {Jacob Dean Sherman}, title = {Effects of Key Parameters on The Performance of Concrete Masonry Shear Walls Under In-Plane Loading}, year =

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Concrete Properties Considerations - usbr.gov

Key Concepts • Concrete properties are needed to evaluate response of concrete ... Concrete Performance Curve. For Linear Elastic Analysis. Based on Apparent Dynamic Tensile Strength. E-1 26. ... Concrete shear strength is needed to evaluate the potential for

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Effect of Shear Wall Location on Performance of High-Rise ...

Key Words: building without shear wall, with shear wall and shear wall at center, Story displacement, Story drift, Story shear 1. INTRODUCTION Shear wall is a structural member positioned at different pleases in a building from foundation level to top parapet level, used to resist lateral forces i.e., parallel to the plane of the wall.

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PERFORMANCE OF FULL-DEPTH SHEAR KEYS IN ADJACENT ...

PERFORMANCE OF FULL-DEPTH SHEAR KEYS IN ADJACENT PRESTRESSED BOX BEAM BRIDGES. Bridge decks supported by adjacent, precast, prestressed concrete beams have become increasingly popular in recent years due to their ease of construction, shallow superstructure, and aesthetic appeal. In New York State prior to 1992, such structures were built by ...

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Structural Performance of Steel Pile Caps Strengthened ...

reinforced concrete footing requires a series of complicated processes such as the distribution of reinforcing bars, their anchorage into concrete, and the usage of shear keys. This study investigates the structural performance of steel pile caps strengthened with newly proposed perfobond shear connectors subjected to lateral loading.

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Existing concrete textures: their effect on adhesion with ...

May 25, 2015  The short- and long-term results of the splitting cylinder tensile and slant shear tests demonstrate that the surface texture profiles of the existing concrete substrate have an important effect on the adhesion strength between existing concrete and ultra-high-performance fibre concrete overlay.

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Effect of thermal load on the behavior of an adjacent ...

Title: Effect of thermal load on the behavior of an adjacent precast, prestressed concrete box-beam bridge that contains ultra-high-performance concrete shear keys with transverse dowels. Date Published: May - June 2018. Volume: 63. Issue: 3. Page Numbers: 51 - 64. Authors: Ali A. Semendary, Kenneth K. Walsh, Eric P. Steinberg, and Issam Khoury.

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Experimental Study on Shear Performance of Cast-In-Place ...

In order to study the direct shear properties of ultra-high performance concrete (UHPC) structures, 15 Z-shaped monolithic placement specimens (MPSs) and 12 Z-shaped waterjet treated specimens (WJTSs) were tested to study the shear behavior and failure modes. The effects of

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ROLE OF SHEAR KEYS IN CANTILEVER RETAINING WALL

The concrete wall is represented by linear elastic model. The performance of the cantilever retaining wall with the shear key in various positions is also being studied analytically. The active and passive lateral earth pressures acting on the wall stem, obtained from the three approaches, are ... shear key, graphs showing percentage increase ...

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Research Project No. 682 Development of High-Strength/High ...

eventual fracture of the rebar. The performance of the UHPC in the precast slab/shear key specimen showed excellent behavior when U-bar was used in the shear key design and also when straight bar was used in a shear key with the width reduced by nearly 64 mm (2.5 in.). 17. Key Word Ultra-High Performance Concrete, Shear Key,

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Effects of Key Parameters on The Performance of Concrete ...

BibTeX @MISC{Sherman11effectsof, author = {Jacob Dean Sherman}, title = {Effects of Key Parameters on The Performance of Concrete Masonry Shear Walls Under In-Plane Loading}, year =

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(PDF) IRJET-Effects of Providing Shear wall and Bracing to ...

In case of building frame Performance with Bracing the base shear is found to be (24765.078 [Kp]_Push-X 104134.285 223551.887 265066.067 KN) for PUSH X The effect of providing shear wall and Bracing on other parameters such as Storey [Ki]_Push-X 150903.016 276974.442 372425.788 displacement, Base shear and Storey Drifts at performance point are ...

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Shear Strength between Ultra-High Performance Concrete

Shear Strength between Ultra-High Performance Concrete and Old Concrete Hassan Fardoun1 2and David Begg 1University of Portsmouth 2Department of Civil Engineering and Surveying UK Abstract: This study aims to assess the bond strength and failure mode between old concrete and new concrete through slant shear test. Three different specimens’ geometries were considered.

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Research Project No. 682 Development of High-Strength/High ...

eventual fracture of the rebar. The performance of the UHPC in the precast slab/shear key specimen showed excellent behavior when U-bar was used in the shear key design and also when straight bar was used in a shear key with the width reduced by nearly 64 mm (2.5 in.). 17. Key Word Ultra-High Performance Concrete, Shear Key,

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The Mechanical Performance of Shear Key of Immersed Tube ...

Dec 21, 2015  (2) The mid-wall shear key is mainly pressured, and the lower part of the shear key bears relatively high load, particularly the contact area between shear key tenon and shear key trough. (3) The differential settlement between the tubes has little effect on other neighboring segments.

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Mechanical performance of shear studs and application in ...

Dec 22, 2016  This work experimentally investigates the effects of shear stud characteristics on the interface slippage of steel-concrete composite push-out specimens. ABAQUS is used to establish a detailed 3D finite element (FE) model and analyze the behavior of push-out specimens. The modeling results are in good agreement with the experimental results. Based on parametrical analysis using the

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Concrete Jointing and Details: Thickness is Only the Start

Tensile, Compressive, Shear or in 3-D space . Design to Minimize Key Distresses Transverse Cracking Joint Faulting Under Slab Erosion Corner Cracking Other Possible Concrete Distresses: ... Minimize performance implications of any random

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"PROPORTIONING AND PROPERTIES OF ULTRA-HIGH PERFORMANCE

Ultra-high performance concrete (UHPC) is defined as a cementitious based composite material with compressive strengths above 150 MPa, pre-and post-cracking tensile strengths above 5 MPa, and enhanced durability. To achieve desired properties, UHPC is typically produced with low water-cementitious materials (w/cm) ratio (i.e. w/cm 1000

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Existing concrete textures: their effect on adhesion with ...

May 25, 2015  The short- and long-term results of the splitting cylinder tensile and slant shear tests demonstrate that the surface texture profiles of the existing concrete substrate have an important effect on the adhesion strength between existing concrete and ultra-high-performance fibre concrete overlay.

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Factors Affecting Strength of Concrete - The Constructor

Factors Affecting Strength of Concrete Concrete strength is affected by many factors, such as quality of raw materials, water/cement ratio, coarse/fine aggregate ratio, age of concrete, compaction of concrete, temperature, relative humidity and curing of concrete. Quality

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Influence of shear span ratio on the seismic performance ...

Dec 04, 2020  Moreover, shear lag effect and effective stiffness were analysed using non-linear section analyses and methods available in the literature. The results showed the shear span ratio had a significant impact on the seismic performance of L-shaped RC walls, and should be

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Effects of Providing Shear wall and Bracing to Seismic ...

as base shear, storey displacement, performance point and the effect of earthquake forces on multi storey building frame with the help of pushover analysis is carried out in this paper. In the present study a building frame without Bracing, shear wall and with Bracing, shear wall is designed as per Indian standard. IS 456-

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UHPC Research Papers - Academia

During the last decade, ultra-high performance concrete (UHPC) has been used in highway bridge connections due to its superior strength and durability. Specifically, UHPC shear keys have been used to reduce joint cracking and enhance transverse load transfer between high strength concrete (HSC) girders of adjacent box-girder bridges.

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Development of Non-Proprietary UHPC Mix - Evaluation of ...

This series will include at least one test to simulate a shear key in a panel joint to determine the relative effectiveness of a shear key vs a roughened plane surface. Approximately two tests to investigate the effects of other fiber contents (e.g. 1% and ½%). One panel to be determined.

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