Study the prying effect on bolted base-plate connections

Katula, Levente; Márai, Péter

doi:10.3311/ppci.7171

Cited by 6 publications

(2 citation statements)

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“…Lately, extensive research has been conducted on the behavior of these joints taking into cognizance of both dynamic and static states [1][2][3][4]. The resistance, stiffness and ductility of each component of the joint can be calculated and combined to joint resistance [5].…”

Section: Introductionmentioning

confidence: 99%

The Performance Evaluation of Circular Flange Bolted Connection in Ultra High Performance Fiber Reinforced Concrete Segmented Communication Tower

Hashim

Hejazi

Jaafar

et al. 2019

Period. Polytech. Civil Eng.

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This study herein presents investigations about behavior of circular flange bolted connection (CFBC) in ultra high performance fiber reinforced concrete (UHPFRC) hollow segmented communication tower subjected to lateral dynamic load. The CFBC consists of two flanged concrete, cast together with the structural segment tubes and then connected using steel bolts. The paper is illustrated with CFBC joint of 500mm flange thicknesses, and 8M25 high strength steel bolts coming from a typical real design tower. For this purpose, the full scale CFBC joints for communication tower are made from Ultra High Performance Fiber Reinforced Concrete (UHPFRC). The connection was cast and experimentally tested by applying cyclic lateral load using dynamic actuator. The lateral strength and stiffness resistance of the UHPFRC CFB connections were evaluated in this study. Besides, a rigorous FEM analysis was executed in order to evaluate the performance of CFBC in the communication tower by investigating the mechanism of force transfer, load bearing capacity as well as failure behavior of the circular flange bolted connection (CFBC) under lateral cycling loading. The experimental and numerical analysis results showed the ability of UHPFRC circular bolted connection to resist the applied lateral loads. In addition, the considered model revealed that for joints under tension, bolts were seriously not subjected to bending moments which is due to the prying effect. This was made possible by the provision of adequate flange thickness and strength of the UHPFRC material.

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Section: Introductionmentioning

confidence: 99%

The Performance Evaluation of Circular Flange Bolted Connection in Ultra High Performance Fiber Reinforced Concrete Segmented Communication Tower

Hashim

Hejazi

Jaafar

et al. 2019

Period. Polytech. Civil Eng.

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“…Design methods given by Eurocode procedure are complicated and for some types of joints are not even exactly described. Behavior of connections using equivalent T-stub flange in tension theory which allows to predict the influence of prying is still actual and many of the world research teams are dealing with that [1,2].…”

Section: Introductionmentioning

confidence: 99%

FEM Modeling of End-Plate Assembling Bolt Connections of CHS Profiles

Rosmanit

Jurčíková

2015

AMM

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Two different numerical models of the common truss-type assembling joints of CHS (circular hollow section) profiles were created – simplified model of joint and more accurate model which corresponds to the experimental specimens. Models with different end-plate thicknesses and consequently with different failure modes were solved. The results obtained from numerical models were compared with the analytical solution of such joints using the Eurocode procedure recommended in EN 1993-1-8. These results are planned to be verified and further developed based on experimental results.

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