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flexural response of hollow high strength concrete beams

flexural response of hollow high strength concrete beams

Flexural response of hollow high strength concrete beams ...

2020-2-1  However, only very limited number of research works was found in the literature on the flexural behavior of hollow RC beams. Murugesan and Narayanan, conducted experimental research on the flexural performance of normal strength concrete (23 to 28 MPa) beams that are provided with sectional circular holes.

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Flexural response of hollow high strength concrete beams ...

Flexural response of hollow high strength concrete beams considering different size reductions. ... The flexural performance of the beams was evaluated using the load–deflection behavior, flexural ductility, stiffness and toughness. In addition to the experimental work, analytical formulas were introduced to evaluate the cracking and peak ...

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(PDF) Flexural response of hollow high strength concrete ...

Several studies have been conducted on the torsional strength [22][23][24] of hollow reinforced concrete beams, whereas studies on the flexural performance of hollow beams are too limited [25].

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Flexural behaviour of hollow concrete beams under three ...

2021-8-1  Stirrups with a distinct shape were used in the hollow concrete beams (see Fig. 1-b).A foam material with different cross-sections (50 × 40, 50 × 80 and 50 × 120 mm) passed through these stirrups, as shown in Fig. 1-a.The first beam, BRCH00, was the control beam and made without a hollow box and using the normal shape of the stirrups.

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Flexural behavior of high strength concrete deep beams ...

Flexural behavior of ultra-high-performance fiber-reinforced concrete beams reinforced with GFRP and steel rebars Eng. Structure , 111 ( 2016 ) , pp. 246 - 262 Article Download PDF View Record in

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Flexural behavior of ECC hollow beams incorporating ...

2021-4-24  Twelve ECC beams with three different fiber types, along with four normal concrete beams, were tested in this study to evaluate the influence of cross-sectional hollowing on their flexural performance. The fiber types used were nylon monofilament (NM), low-cost untreated polyvinyl alcohol (PVA), and polypropylene (PP). Three different square hole sizes of 60, 80, and 100 mm with cross ...

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Flexural response of high‐strength steel‐ultra‐high ...

2017-11-8  1 INTRODUCTION. Ultra‐high‐performance fiber reinforced concrete (UHPFRC) is an optimized and innovative cementitious‐based composite that has been developed in recent decades. 1-3 The matrix is extremely dense and contains more fine components instead of traditional aggregates, and high‐strength steel fibers are randomly dispersed to improve the strength and ductility of the matrix. 4 ...

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Flexural response of high‐strength steel‐ultra‐high ...

2017-11-8  This paper presents the results of experimental and theoretical studies undertaken to assess the flexural performance of high-strength steel-ultra-high-performance fiber reinforced concrete

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Closed-Form Solutions for Flexural Response of Fiber ...

Closed-Form Solutions for Flexural Response of Fiber-Reinforced Concrete Beams ... of a three- and four-point bending test reveals that the direct use of uniaxial tensile response underpredicts the flexural response. ... Comparative Study on Flexural Response of Full and Partial Depth Fiber-Reinforced High-Strength Concrete.

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Flexural Strength Evaluation of Reinforced Concrete ...

Flexural strength evaluation models for steel fiber reinforced ultra high strength concrete were suggested and evaluated with test results. Suggested flexural strength models were composed of compression stress blocks and tension stress blocks. Rectangular stress block, triangular stress block, and real distribution shape of stress were used on compression side.

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The Opening Presence Effect on the Flexural Response of ...

The Opening Presence Effect on the Flexural Response of Concrete Beams ... and high strength concrete . Totally 14 specimens were ... hollow area due to large stress induced.

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Closed-Form Solutions for Flexural Response of Fiber ...

Closed-Form Solutions for Flexural Response of Fiber-Reinforced Concrete Beams ... of a three- and four-point bending test reveals that the direct use of uniaxial tensile response underpredicts the flexural response. ... Comparative Study on Flexural Response of Full and Partial Depth Fiber-Reinforced High-Strength Concrete.

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Flexural performance of steel-UHPC composite beams with ...

2020-10-1  1. Introduction. Steel-concrete composite beams have been extensively used in bridge engineering due to the benefits derived from the combination of the two materials, such as higher stiffness than reinforced concrete (RC) beams or steel beams and ease of construction , , , , .Due to Ultra-High Performance Concrete (UHPC) superior mechanical properties (i.e., high tensile strength and high ...

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Flexural Response of CFRP Prestressed Concrete Box

2010-11-22  Hollow Portion 12" 1" 1" 1.5" 2" CFRP non-prestressing rods CFRP pretensioned tendons CFRP unbonded post-tensioned tendons Detail A Fig. 1. Cross-sectional details of tested box beam. stressed concrete structures, Kato and Hayashida6 studied the flexural characteristics of concrete beams prestressed in-dependently with bonded and unbonded CFRP ...

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Flexural response of reinforced concrete beams ...

2011-6-1  Four-point bending tests were conducted up to failure on eleven reinforced concrete (RC) beams and strengthening beams to study the effectiveness of externally pouring ultra high toughness cementitious composites (UHTCC) on improving the flexural behavior of existing RC beams. The strengthening materials included UHTCC and high strength grade concrete. The parameters, such as

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Flexural behavior of hybrid hollow-core slab built with ...

2015-11-25  Azad AK, Hakeem IY (2013) Flexural behaviour of hybrid concrete beams reinforced with ultra- high performance concrete bars. Constr Build Mater 49:128–133. Article Google Scholar 37. Cuenca E, Serna P (2013) Failure modes and shear design of prestressed hollow core slabs made of fiber-reinforced concrete.

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Strengthening of reinforced concrete beams in flexural ...

2021-7-17  During the last few decades, strengthening of concrete structural elements by fibre-reinforced polymer (FRP) has become a widely used technique where high strength

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(PDF) Impact Responses of Hollow Reinforced Concrete

2020-11-24  Hollow reinforced concrete (RC) structures i.e. beams and columns have been recently constructed in the construction industry owing to their advantages

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Effect of an Opening on Reinforced Concrete Hollow

hough the hollow beam with small opening can carry almost the same load as that of hollow beam without an opening. The result also shows that the capacity of UHPC beams for twisting is twice that of HSC beams. Keywords Cyclic load, Flexural load, Finite element, Hollow beam, High-strength concrete (HSC), Torsion load, Ultrahigh-performance

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Comparison of the Flexural Performance and Behaviour of ...

A construction system with high sustainability, high durability, and appropriate strength can be supplied by geopolymer concrete (GPC) reinforced with glass fibre-reinforced polymer (GFRP) bars and carbon fibre-reinforced polymer (CFRP) bars. Few studies deal with a combination of GPC and FRP bars, especially CFRP bars. The present investigation presents the flexural capacity and behaviour of ...

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Three Stages in the Life of a Reinforced Concrete Beam

2010-11-28  CE 331, Fall 2010 Flexure Strength of Reinforced Concrete Beams 5 / 5 4. Calculate φ (strength reduction factor) φ is a function of the strain in the steel. If the strain in the steel (εs) is at least 2.5 times the yield strain (εy ~= 0.002 = 60 ksi / 29,000ksi = f y

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Chapter 2. Design of Beams – Flexure and Shear

2003-8-23  Chapter 2. Design of Beams – Flexure and Shear 2.1 Section force-deformation response Plastic Moment (Mp) • A beam is a structural member that is subjected primarily to transverse loads and negligible axial loads. • The transverse loads cause internal shear forces and bending moments in the beams as shown in Figure 1 below. w P V(x) M(x ...

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Design of Reinforced Concrete Beams per ACI 318-02

2012-6-24  3. Concrete in the tension zone of the section is neglected in the flexural analysis and design calculations, and the tension reinforcement is assumed to resist the total tensile force (Concrete tensile strength is approximately 10% of its compressive strength). 4. The maximum usable strain at extreme concrete fiber is assumed equal to 0.003. 5.

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FE ANALYSIS OF THE FLEXURAL BEHAVIOR OF

2018-12-9  of 14 beams specimens were included in the investigation program. Among the 14 sp ecimens, 2 were hollow sections without any filling, 6 were filled with high strength concrete, and 6 were filled with fiber steel high strength concrete with and without extra reinforcing bar in the tension zone. The extra reinforcing bar was

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Closed-Form Solutions for Flexural Response of Fiber ...

Closed-Form Solutions for Flexural Response of Fiber-Reinforced Concrete Beams ... of a three- and four-point bending test reveals that the direct use of uniaxial tensile response underpredicts the flexural response. ... Comparative Study on Flexural Response of Full and Partial Depth Fiber-Reinforced High-Strength Concrete.

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Flexural strengthening of reinforced concrete beam using

2020-11-16  Synthetic fibres like carbon and glass fibres are commonly used as reinforcing material in polymer composites used by the construction industry to retrofit reinforced concrete (RC) structures. Natural fibres can be developed as a more sustainable alternative to these synthetic fibres in polymer composites. In this study, a kenaf fibre reinforced polymer (KFRP) laminate was designed and ...

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Flexural behavior of hybrid hollow-core slab built with ...

2015-11-25  Azad AK, Hakeem IY (2013) Flexural behaviour of hybrid concrete beams reinforced with ultra- high performance concrete bars. Constr Build Mater 49:128–133. Article Google Scholar 37. Cuenca E, Serna P (2013) Failure modes and shear design of prestressed hollow core slabs made of fiber-reinforced concrete.

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Flexural Behaviour of Reinforced Concrete Beam with

Flexural Behaviour of Reinforced Concrete Beam with Hollow Core at Various Depth. Nibin Varghese, Anup Joy. Nowadays research efforts are continuously looking for new, better and efficient construction material and method. In recent days the problem faced by

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Flexural Behavior of Posttensioned Concrete Beams with ...

This paper assesses the applicability of high-strength strands to current design codes and various existing equations. To evaluate the flexural performance of posttensioned concrete members with Grade 2400 strands, a flexural experiment was conducted on eleven specimens. Test variables included the tensile strength of strands, the number of strands, the cross-section shape, and anchorage zone ...

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[PDF] Flexural capacity of singly reinforced beam with 150 ...

In this paper, we have studied the 150 MPa ultra-high-strength concrete (UHSC). RC beam is reinforced by SD400 and SD500 bars to evaluate on range of maximum tensile steel ratio which have reasonable ductility capacities and flexural behaviors of UHSC through the flexural test. The reinforced ultra-high-strength-concrete beam subjected to flexural moment behaves more brittleness than the ...

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