retrofitting of reinforced concrete flat slabs with cut

Retrofitting of reinforced concrete flat slabs with cut ...

Jun 01, 2021  In order to achieve the goal of this study, six reinforced concrete slabs with identical dimensions of 1300 × 1300 × 120 mm were equipped. Indeed, the selected slabs embodied the region of the sagging bending in an exterior panel of the multi-bays flat plate shown in Fig. 1a.This region locates beyond the contra-flexural lines and measures approximately 57.8 % of the center-to-center spans ...

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(PDF) RETROFITTING OF REINFORCED CONCRETE SLABS

RETROFITTING OF REINFORCED CONCRETE SLABS. July 2021; DOI:10 ... Strengthening of RC one-way slabs including cut-out using different techniques ... Six reinforced concrete slabs

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(PDF) RETROFITTING OF REINFORCED CONCRETE SLABS

Jul 17, 2021  repaired slabs to about 5 times that of the a s constructed slabs. For retrofitting programs, u se o f FRP structures end ed in. considerable upgrade of the structural capability of th e as

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Retrofitting of two-way RC slabs with and without cut-out ...

reinforced concrete slabs retrofitted by using Fiber Reinforced Polymer composites. Theoretical and experimental investigations are being performed in order to determine the effectiveness of these strengthening solutions. The particular case of cut-outs created in the corners and on the edges of the slabs is of interest.

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(PDF) RETROFITTING OF REINFORCED CONCRETE SLABS

Jul 17, 2021  repaired slabs to about 5 times that of the a s constructed slabs. For retrofitting programs, u se o f FRP structures end ed in. considerable upgrade of the structural capability of th e as

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(PDF) RETROFITTING OF REINFORCED CONCRETE SLABS

RETROFITTING OF REINFORCED CONCRETE SLABS. July 2021; DOI:10.3444/182. ... flat slabs that rest directly on columns are considered ... Six reinforced concrete slabs were prepared with similar ...

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An Effective Retrofitting Scheme for Flat-Slab Systems ...

reinforced concrete (RC) slabs are constructed and tested. ... slabs with or without cut-outs are performed and reported ... confinement has studied in [8]. Additionally, an experimental study for retrofitting damaged flat-slabs due to punching shear by using prestressed vertical type bolts are performed [9]. The effect of catastrophic or

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Seismic retrofit of a reinforced concrete flat-slab ...

Jun 01, 2007  An evaluation of seismic performance was conducted for a reinforced concrete (RC) frame structure representative of 1980s construction in the Central United States. The case study building is a five-story RC flat-slab office building designed for the code requirements used in this region.

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RETROFITTING OF REINFORCED CONCRETE SLABS USING

Retrofitting of Reinforced Concrete Slabs using Different FRP’S – A Critical Review International Conference on “Recent Trends in Environmental Science and Engineering” (RTESE’17), APSCE, Bengaluru, India, 16th December, 2017, ISBN: 978-93-87405-83-7

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SEISMIC FRAGILITY AND RETROFITTING FOR A

The effectiveness of seismic retrofitting applied to enhance seismic performance was assessed for a five-story reinforced concrete (RC) flat-slab building structure in the central United States. In addition to this, an assessment of seismic fragility that relates the probability of exceeding a performance level to the earthquake intensity was

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Tests on reinforced concrete slabs with cut-out openings ...

Nov 01, 2014  Investigations on slabs with cut-outs revealed that the FRP can be placed only around the edges of the cut-out when retrofitting the slabs whereas, in the situation of inserting cut-outs combined with increased demands of capacity, it is necessary to apply FRP components on most of the soffit of the slab.

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Strengthening of Flat Slabs with Cut-Out Openings ...

Apr 18, 2021  The use of embedded steel bars achieved the most significant upgrading in the slab strength, about 22.2 % over that of the slab with opening and 3 % below the solid slab’s strength. References. Hussein M. J., Jabir H. A., Al-Gasham T. S. (2021): Retrofitting of reinforced concrete flat slabs with cut-out edge opening.

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Strengthening and Retrofitting of RC Flat Slabs to ...

Aug 04, 2013  The dynamic ultimate strength and corresponding dynamic effects of flat slabs after the sudden removal of a corner column was also discussed due to the dynamic nature of progressive collapse. Test results indicated that both schemes were effective in improving the performance of RC flat slabs in resisting progressive collapse.

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III. GUIDELINES FOR RETROFIT OF CONCRETE STRUCTURES -

Keywords: retrofit of concrete structures,external cable method,steel plate bonding method , fiber-reinforced plastic bonding method, steel plate jacketing method, fiber-reinforced plastic jacketing construction method, surface overlaying method, Reinforced concrete jacketing method

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(PDF) SEISMIC FRAGILITY AND RETROFITTING FOR A REINFORCED

SEISMIC FRAGILITY AND RETROFITTING FOR A REINFORCED CONCRETE FLAT-SLAB STRUCTURE. Har Sant. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 35 Full PDFs related to this paper. ... SEISMIC FRAGILITY AND RETROFITTING FOR A REINFORCED CONCRETE FLAT-SLAB STRUCTURE.

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STRENGTHENING TECHNIQUES- R.C. SLAB - The Constructor

Fig.2: Strengthening a slab by increasing its depth from top. There are also some other techniques used for strengthening a reinforced concrete slab such as: Increasing the shear bearing capacity of the slab by adding steel plates strengthened by vertical screw bolts. Strengthening of the slab

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Ductility of Reinforced Concrete Flat Slab‐Column ...

Mar 04, 2005  Shear bolts are a special type of reinforcement developed specially for retrofitting of existing, previously built, flat slabs. The results of an experimental work are presented which show how transverse reinforcement increases punching shear capacity and post‐failure ductility of slab‐column connections.

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Various retrofitting methods for repair and rehabilitation ...

Apr 11, 2020  Various types of retrofitting methods for repair and rehabilitation of concrete structure failure Guniting The cement and sand are batched and mixed in the usual way and conveyed through a hose pipe with the help of compressed air.

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(PDF) RETROFITTING OF REINFORCED CONCRETE SLABS

Jul 17, 2021  repaired slabs to about 5 times that of the a s constructed slabs. For retrofitting programs, u se o f FRP structures end ed in. considerable upgrade of the structural capability of th e as

get price

An Effective Retrofitting Scheme for Flat-Slab Systems ...

reinforced concrete (RC) slabs are constructed and tested. ... slabs with or without cut-outs are performed and reported ... confinement has studied in [8]. Additionally, an experimental study for retrofitting damaged flat-slabs due to punching shear by using prestressed vertical type bolts are performed [9]. The effect of catastrophic or

get price

(PDF) SEISMIC FRAGILITY AND RETROFITTING FOR A REINFORCED

SEISMIC FRAGILITY AND RETROFITTING FOR A REINFORCED CONCRETE FLAT-SLAB STRUCTURE. Har Sant. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 35 Full PDFs related to this paper. ... SEISMIC FRAGILITY AND RETROFITTING FOR A REINFORCED CONCRETE FLAT-SLAB STRUCTURE.

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Retrofit of Concrete Slabs with FRP to Resist Progressive ...

The application of Fiber Reinforced Polymer (FRP) strips as Tie Elements in strengthening of existing concrete slabs to resist progressive collapse is investigated. In the Tie Force approach it is essential that the FRP strips, designed to behave as Tie Elements, possess the deformation capacity required for large deflections to develop ...

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SEISMIC EVALUATION AND RETROFIT OF AN ASYMMETRIC ...

retrofitting system upgrade the seismic behavior of the gravity load designed flat slab building. Cost analysis comparison study is carried out. KEYWORDS: seismic evaluation, nonlinear pushover analysis, flat slab building, retrofit systems, strength and stiffness 1. INTRODUCTION

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TRADITIONAL SOLUTIONS FOR STRENGTHENING

REINFORCED CONCRETE SLABS BY Ş BANU and N. DRAGO ŢĂRANU Abstract. Different strengthening techniques have been developed so far for the reinforced concrete slabs with or without cut-outs. The development of these methods was a necessity due to different causes, such as inadequate maintenance, overloading of the

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Performance of Two-way RC Slabs Retrofitted by Different ...

Thus, In order to ensure a flexural failure mode in the slabs and highlight the effects of retrofit technique, four of the slabs were designed by a low reinforcement ratio near the minimum steel reinforcement ratio (0.2%) according to ACI 318-99 simulating lightly reinforced or, alternatively, moderately corroded slabs. In these specimens, ten ...

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STRENGTHENING TECHNIQUES- R.C. SLAB - The Constructor

Fig.2: Strengthening a slab by increasing its depth from top. There are also some other techniques used for strengthening a reinforced concrete slab such as: Increasing the shear bearing capacity of the slab by adding steel plates strengthened by vertical screw bolts. Strengthening of the slab

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Structural retrofitting and strengthening by Jacketing

Sep 04, 2020  To reduce the shrinkage hybrid fiber-reinforced polymer (FRP) reinforced shrinkage compensating concrete is used. Glass Fibre Reinforced Polymer Jacketing The application of composite materials for jacketing has been developed in strengthening and retrofitting of concrete structures through recent years so that many concrete structures would be ...

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STRUCTURE magazine Creating an Opening in Existing Floors

Aug 27, 2018  A reinforced concrete slab may be treated as either a one-way slab or a two-way slab based on the aspect ratio of the length in the long direction to the width in the short direction. A one-way slab is considered when an aspect ratio of at least two is realized.

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Flat Slab Opening Reinforcement Detail Flat slab ...

Reinforced Concrete flat slab reinforcement plan view with a void opening detailing-two different detailing options. Pinterest. Today. Explore. When autocomplete results are available use up and down arrows to review and enter to select. Touch device users, explore by touch or with swipe gestures.

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Seismic fragility and retrofitting for a reinforced ...

The effectiveness of seismic retrofitting applied to enhance seismic performance was assessed for a five-story reinforced concrete (RC) flat-slab building structure in the central United States. In addition to this, an assessment of seismic fragility that relates the probability of exceeding a performance level to the earthquake intensity was ...

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(DOC) A Retrofit Punching Shear Strengthening Technique ...

A Retrofit Punching Shear Strengthening Technique for Slabs at Interior Slab-Column Connections. ... The Shear Bolt is a new device used for transverse reinforcing in reinforced concrete slabs. It consists of a headed vertical rod threaded at the other end for anchoring using a washer and nut system. ... Concrete Slabs, flat plates, punching ...

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Various retrofitting methods for repair and rehabilitation ...

Apr 11, 2020  Various types of retrofitting methods for repair and rehabilitation of concrete structure failure Guniting The cement and sand are batched and mixed in the usual way and conveyed through a hose pipe with the help of compressed air.

get price