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evaluation of punching shear in flat slabs

  • Evaluation of Punching Shear Strength of Reinforced Concrete Slabs

    Evaluation of Punching Shear Strength of Reinforced Concrete Slabs Based on Database Sumio Hamada1 Qiuning Yang2 and Mingjie Mao3 Received 13 February 2007 accepted 2 December 2007 Abstract Although various studies related to the punching

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  • Punching shear analysis of reinforced concrete flat plates

    Punching shear analysis of reinforced concrete flat plates Osman M Ramadan1) *Kamal G Metwally2) and Gehad S Younis3) 1) 3) Department of Structural Engineering Cairo University Cairo Egypt 2) Department of Civil Engineering Beni-Suef University Beni-Suef Egypt

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  • Strength of Footing with Punching Shear Preventers

    For the flat slab funnel-shaped punching shear preventer shown in Figure 1(a) is sometimes used to increase the punching shear strength of flat slab-to-column connection [] Generally conventional design codes [ 20 21 ] define the punching shear strength in terms of a nominal shear capacity on a control perimeter at a certain distance from the column perimeter

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  • Punching shear strength of RC flat slabs at interior connections

    Punching shear strength of RC flat slabs at interior connections to columns Dan V Bompa Post-doctoral Research Associate Imperial College London London UK Traian Onet Professor Technical University of Cluj-Napoca Cluj-Napoca Romania A method to

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  • Punching Shear Design a Detailed Discussion

    2020/6/3Punching shear is a failure mechanism when structural elements subjected to concentrated load Failure occurs in perimeter defined away from the concentrated load Slabs pile caps footings raft foundations etc element is subjected to punching action and they

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  • Evaluation of hybrid fibre

    Punching failure is considered a serious problem that often governs slab collapse especially in flat slabs that are supported on columns Such failures occur with little or no warning in the slabs prior to their collapse and failures are often coupled with bending cracking and drastic changes in the post-peak behaviour owing to a decline in the load after the peak stress point [3]

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  • Slabs and Flat Slabs

    EC2 Webinar - Autumn 2016 Lecture 5/2 Designing for shear in slabs • When shear reinforcement is not required –e g usually one and two-way spanning slabs • Punching shear –e g flat slabs and pad foundations Shear There are three approaches to designing for

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  • Guide to Shear Reinforcement for Slabs

    In flat-plate floors slab-column connections are subjected to high shear stresses produced by the transfer of the internal forces between the columns an d the slabs Section 11 11 3 of ACI 318-08 allows the use of shear reinforcement for slabs and footings in the

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  • Punching shear analysis of reinforced concrete flat plates

    Punching shear analysis of reinforced concrete flat plates Osman M Ramadan1) *Kamal G Metwally2) and Gehad S Younis3) 1) 3) Department of Structural Engineering Cairo University Cairo Egypt 2) Department of Civil Engineering Beni-Suef University Beni-Suef Egypt

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  • What is Punching Shear? Punching Shear in Flat Slabs

    Correct Representation of Punching Shear Failure Punching shear is a phenomenon in flat slabs caused by concentrated support reactions inducing a cone shaped perforation starting from the top surface of the slab Although generally preceded by flexural failure punching shear is a brittle failure mode and the risk of progressive collapse requires a higher safety class in structural design

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  • Evaluation of Punching Shear Strength of Reinforced Concrete Slabs

    Evaluation of Punching Shear Strength of Reinforced Concrete Slabs Based on Database Sumio Hamada1 Qiuning Yang2 and Mingjie Mao3 Received 13 February 2007 accepted 2 December 2007 Abstract Although various studies related to the punching

    Get Price
  • Punching shear strength of RC flat slabs at interior connections

    Punching shear strength of RC flat slabs at interior connections to columns Dan V Bompa Post-doctoral Research Associate Imperial College London London UK Traian Onet Professor Technical University of Cluj-Napoca Cluj-Napoca Romania A method to

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  • Subramanian punching shear

    Evaluation and enhancing the punching shear resistance of flat slabs using HSC The use of high-strength concrete with strength exceeding 40 MPa in reinforced concrete slabs is becoming popular in India and other countries Current design provisions of major

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  • Evaluation of hybrid fibre

    Punching failure is considered a serious problem that often governs slab collapse especially in flat slabs that are supported on columns Such failures occur with little or no warning in the slabs prior to their collapse and failures are often coupled with bending cracking and drastic changes in the post-peak behaviour owing to a decline in the load after the peak stress point [3]

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  • 1 PUNCHING SHEAR RESISTANCE OF FLAT SLABS WITH OPENING

    punching shear resistance in flat slabs in the vicinity of columns In the present paper the aims are going to compile this state of review on the evaluation of the predicted punching shear strength A total of 79 tested slabs without shear reinforcement were

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  • Punching Shear Resistance of Reinforced Concrete Flat Plate Slabs

    Punching shear failure in flat reinforced concrete slabs can be the reason for brittle nonductile failures [1] Punching strength in slabs can become insufficient due to a change of building use need of installing new services that require opening in the

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  • Punching Shear Systems for Flat Slabs

    Title: Punching Shear Systems for Flat Slabs – Evaluation of Tests and Comparison with Codes Author(s): Dominik Kueres Carsten Siburg Alaa G Sherif and Josef Hegger Publication: Symposium Paper Volume: 321 Issue: Appears on pages(s): 4 1-4 16

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  • Uniform Design Method for punching shear in flat slabs

    2017/4/1For the evaluation of the punching shear provisions for flat slabs without shear reinforcement according to Eurocode 2 () a total of 328 tests can be considered according to Fig 1 depicts the comparison of failure load and punching shear capacity of flat slabs without shear reinforcement according to Eurocode 2

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  • Designing for Punching Shear in Concrete Slabs

    Punching shear is a failure mechanism of shallow concrete elements when subjected to concentrated forces It arises when high concentrated loads are applied to smaller portions of a slab or as a result of high column reactions in flat slabs pad footings or very

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  • Punching Shear Systems for Flat Slabs

    Title: Punching Shear Systems for Flat Slabs – Evaluation of Tests and Comparison with Codes Author(s): Dominik Kueres Carsten Siburg Alaa G Sherif and Josef Hegger Publication: Symposium Paper Volume: 321 Issue: Appears on pages(s): 4 1-4 16

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  • EFFECT OF LARGE OPENINGS AND COLUMN

    2015/7/7The paper focuses on punching shear design of slabs with openings and supported on rectangular columns Twenty slab specimens had been tested in the programme and it was found as expected that the stresses in the slabs are concentrated mostly around the shorter ends of the rectangular columns

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  • Punching Shear Failure of Reinforced concrete flat slabs

    i Punching Shear Failure of Reinforced concrete flat slabs supported on steel edge column Barisua Ebenezer Ngekpe A Thesis submitted in partial fulfilment of the University's ii ABSTRACT This study examines punching shear failure at edge supported flat slab

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  • PUNCHING OF FLAT SLABS WITH SHEAR REINFORCEMENT

    punching shear with transverse reinforcement is summarized in Chapter 2 Currently none of the resulting theories explains the behavior of the strength of punching shear of flat slabs with transverse reinforcement physically satisfactorily

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  • Punching shear behavior of reinforced concrete flat slabs

    For the evaluation and improvement of the existing provisions for flat slabs without and with high amounts of shear reinforcement a large number of punching test series on reinforced concrete flat slabs is available in the literature

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  • Design Considerations for Shear Bolts in Punching Shear

    2020/8/18This study addresses design aspects for the punching shear bolt retrofitting system for reinforced concrete flat slabs supported on columns Shear bolts are an external type of reinforcement installed in existing slabs by first drilling small holes through the slab thickness installing the bolts into them and tightening the bolt nuts Previous experimental research at the University of

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  • PUNCHING SHEAR BEHAVIOUR ANALYSIS OF RC FLAT FLOOR

    forced concrete slabs near the support zone is to avoid brittle and rapid punching failure mode Comparing different punching shear strength ana lytical calculation methods one may find that most na tional design codes deal only with evaluation

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  • Punching Shear Strength of Concrete Flat Plate Slabs

    Punching Shear Strength of Concrete Flat Plate Slabs During (1906-2009) Review and Analysis* Ghafur H Ahmed1 Omer Qarani Aziz2 1- Hawler Construction Laboratory Council of Ministers Kurdistan Regional Government Iraq e-mail: [email protected]

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  • Determining the Causes of Punching Shear in Reinforced

    J Aalto Comparison of punching shear design provisions for flat slab TRITA-BKN Master Thesis 517 Concrete Structures June 2017 D D Shinde S Ahirrao and R Prasad Fishbone diagram: Application to identify the root causes of student-staff problems in technical education Wireless personal communications May 2018 Volume 100 Issue 2 pp 653–664 doi: 10 1007/s11277-018-5502-2

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