Crushing Of Reinforced Concrete
Web crushing strength of reinforced and prestressed concrete …
The web crushing strengths of 16 reinforced and prestressed concrete I-beams are reported. The principle variables of the test specimens are the ratio of yield
Failure Modes in Concrete Beams: Flexural and Shear Failure
Flexural tension failure initiates by yielding of steel reinforcement followed by crushing of concrete at compression side of the beam. It occurs when the beam is under-reinforced; the reinforcement ratio in the beam is low than balanced reinforced ratio as …
Crushing strength of concrete rings with a polyurea reinforce system
The paper primarily aims at assessing the crushing strength of concrete rings reinforced with a polyurea coating. A relatively easy way of application and a number of advantages of polyurea application can prove very useful when concrete structural parts are repaired or upgraded.
Strength Deterioration due to Bond Slip and Concrete Crushing …
A macromodel that represents the behavior of reinforced concrete members that accounts for strength degradation due to bond slip and crushing of concrete is developed. The model consists of ...
Cyclic responses of reinforced concrete composite columns strengthened
Steel jacketing in the plastic hinge region of the reinforced concrete column was one of the most well-known strengthening methods, particularly improving the flexural deformation and load-carrying capacities of the columns [4], [5].Fiber wrapping was also perhaps one of the most successful applications of fiber-reinforced polymer (FRP), due …
Ability of recycling on fiber reinforced concrete
The crushed concrete was similar to that in the sieve size of 40 mm qualitatively. Fig. 10 shows the photo of crushed concrete in the sieve size of 10 mm, which is in ranging from 10 to 20 mm. The most fibers were removed in this case. Fig. 11 shows the photo of crushed concrete in the sieve size of 2.5 mm, which is in ranging from 2.5 …
Torsional Strength of Reinforced Concrete Members Failing by Crushing
The strength of over-reinforced high-strength concrete beams (failing by crushing of the concrete before yielding of the reinforcement) can be over-estimated, however, unless the concrete strength ...
Behavior of Reinforced Concrete Beam
Reinforced Concrete (RC) Beam: Plain concrete beams are inefficient as flexural members because the tensile strength in bending (modulus of rupture) is a small fraction of the compressive strength. ... Concrete fails by crushing when strains become so large that they disrupt the integrity of the concrete. Exact criteria for this occurrence are ...
Concrete Crushing
Concrete crushing after yielding of steel reinforcement represents an under-reinforced member, which is typical of current reinforced concrete design standards. …
Flexural property of damaged steel-concrete composite …
When load level is approximately 85% Pu, the beam of steel's upper flange experienced yielding. The lower flange's yielding area rose. Upon reaching the ultimate …
A Practical Finite Element Modeling Strategy to Capture …
Nonlinear finite element (FE) analysis of reinforced concrete (RC) structures is characterized by numerous modeling options and input parameters. To …
Reinforced concrete: Jonathan Ochshorn's …
Testing of many reinforced concrete beams has shown that the average stress within the compressive zone is 0.85β 1fc ', and the resultant location is β 1c /2 from the face of the concrete beam, as shown in Figure …
Strength Deterioration due to Bond Slip and Concrete Crushing …
An efficient model is needed, however, for the simple and accurate representation of the behavior up to failure. A macromodel that represents the behavior of reinforced concrete members that accounts for strength degradation due to bond slip and crushing of concrete is developed. The model consists of nonlinear springs connected …
Torsional Strength of Reinforced Concrete Members Failing by Crushing
The torsional strength of reinforced concrete members that fail by yielding of the reinforcement can be accurately predicted by design codes such as ACI 318-19 . ... However, these codes are relatively poor at predicting the strength of heavily reinforced members that fail by crushing. This paper presents a rational model which can predict …
Research on the Crushing of Reinforced Concrete Two-Way …
The influence law of key parameters on the effect of PPD crushing reinforced concrete slabs was analyzed systematically, and the corresponding mathematical expression of PPD crushing reinforced concrete slabs was established. The research in this paper will provide a theoretical basis for the application of PPD …
Web crushing of reinforced concrete structural walls
Web crushing of reinforced concrete structural walls Other title Ecrasement de l'âme de murs en béton armé (fr) Author OESTERLE, R. G; ARISTIZABAL-OCHOA, J. D; SHIU, K. N; CORLEY, W. G Source. Journal of the American Concrete Institute. 1984, Vol 81, Num 3, pp 231-241 ; ref : 22 ref ...
Multi-platform simulation of reinforced concrete structures …
The structure is a square column with a height of 496.6 mm and a sectional width of 152.4 mm. The column is reinforced with eight longitudinal rebars (diameter d l: 9.5 mm) and transverse rebars (diameter d t: 3.2 mm) with a spacing of 23.7 mm. The elastic moduli of the concrete and steel are 3.4 × 10 4 MPa and 2.0 × 10 5 MPa, …
Research on the Crushing of Reinforced Concrete Two-Way …
At present, there is a lack of research on PPD crushing test of reinforced concrete members, and the main ones are the crushing of small-volume block materials equipped with reinforcements. Yudin conducted a PPD crushing test on a reinforced …
Experimental study on crushing of concrete slabs by high …
The crushing mode of reinforced concrete beams was spalling of the external concrete protective layer, and the crushing mode of reinforced concrete …
Web crushing strength of reinforced and prestressed concrete …
The web crushing strengths of 16 reinforced and prestressed concrete I-beams are reported. The principle variables of the test specimens are the ratio of yield ... Title: Web crushing strength of reinforced and prestressed concrete beams. Author(s): B. Vijaya Rangan. Publication: Structural Journal. Volume: 88. Issue: 1. Appears on …
Compressive and Bonding Performance of GFRP-Reinforced Concrete …
The use of glass-fiber-reinforced polymer (GFRP) bars as an alternative to steel bars for reinforcing concrete (RC) structures has gained increasing attention in recent years. GFRP bars offer several advantages over steel bars, such as corrosion resistance, lightweight, high tensile strength, and non-magnetic properties. However, there are also …
Simulation study on static pressure crushing performance of …
Most of the studies on concrete crushing to date have been conducted based on structural safety considerations to minimize damage or spalling of the material, which is …
Flexural strengthening of reinforced concrete beams using …
For SB-2 and SB-3, their final flexural failures were caused by concrete crushing at the top surface within the pure bending span. For SB-2, shortly after the concrete crushing, a small amount of interfacial bond-slip was observed. On the other hand, for SB-3, virtually no interfacial bond-slip was observed even after concrete …
FAILURE CHARACTERISTICS OF REINFORCED …
failure modes [14], which include: (a) concrete crushing before yielding of the reinforcing steel (concrete crushing failure); (b) yielding of the steel in tension followed by FRP system rupture (FRP rupture); and (c) yielding of the steel in tension followed by concrete crushing (tension failure). For a
Analysis of reinforced concrete with FEM
Finally, a Mohr-Coulomb stress check should be performed to check the potential crushing of the concrete. For this check, the characteristic compressive strength of concrete (25MPa) should be divided by an appropriate material factor (>1.0). Shear wall with uniform load. A 4.0x2.0x0.15m wall is supported by two 0.5m wide columns.
Retrofitting of severely damaged reinforced concrete …
Concrete crushing, spalling and buckling of longitudinal reinforcement: CFRP Wrapping: Strength and Ductility: Ilki and Kumbasar [82] Square and Circular RC Columns: Axially loaded till the failure strain of concrete (ε cu = 0.004) is attained: Concrete crushing and spalling: CFRP Wrapping: Strength and Ductility: Manos et al., …
Experimental and numerical investigations on impact …
At present, many investigations have been studied on the dynamic response of reinforced concrete beams under impact loadings. The impact resistance of beams has been found to be influenced by the concrete strength, reinforcement ratio, stirrup ratio, shear-span ratio, and drop hammer shape [3], [4], [5], [6].Fujikake et al. [7] studied the …
Simulation study on static pressure crushing performance of …
DOI: 10.1016/j.engstruct.2024.118902 Corpus ID: 272542639; Simulation study on static pressure crushing performance of demolished reinforced concrete beams for recycling @article{Ning2024SimulationSO, title={Simulation study on static pressure crushing performance of demolished reinforced concrete beams for recycling}, author={Jiaqian …
Web Crushing Strength of Reinforced Concrete Beams with …
This paper reports the effect of pre-existing cracks on the web crushing strength of reinforced concrete beams. Two experimental series were conducted. The first series involved the test of four ...
Simulation study on static pressure crushing performance of …
Most of the studies on concrete crushing to date have been conducted based on structural safety considerations to minimize damage or spalling of the material, which is incompatible with the need to recycle demolished concrete. ... In the 1/2 scale-down and 3/2 scale-up models, the dimensions of the reinforced concrete beams, the diameter of the ...
A practical finite element modeling strategy to …
materials Article A Practical Finite Element Modeling Strategy to Capture Cracking and Crushing Behavior of Reinforced Concrete Structures Alexandre Mathern 1,2,*,† and Jincheng Yang 3,*,† Citation: Mathern, A.; Yang, J. A Practical Finite Element Modeling
A practical finite element modeling strategy to capture …
Abstract: Nonlinear finite element (FE) analysis of reinforced concrete (RC) structures is characterized by numerous modeling options and input parameters. To accurately model …
Flexural property of damaged steel-concrete composite …
Deng et al. 17 present a well-rounded experimental study on the flexural performance of Reinforced Concrete (RC) box girders strengthened with prestressed carbon fiber reinforced polymer (CFRP) plates. The test results suggested that the crack load increased by 86% and 134%, when the specimens were enhanced with the …
A Practical Finite Element Modeling Strategy to Capture …
The proposed modeling strategy aims at providing reliable predictions of flexural responses of RC members with a focus on concrete cracking behavior and crushing failure, which serve as the ...
Concrete Pipe Design
In the UK pipes made from concrete (both unreinforced and reinforced) and clay pipes are considered as rigid. These pipe materials have their own design procedure outlined below which takes account of the increased …
Experimental and Theoretical Study on Local Damage of …
During an explosion, a building's stability is directly impacted by reinforced concrete (RC) columns. However, there is currently no theoretical analysis model that …
REINFORCEMENT FOR CONCRETE— MATERIALS AND …
2.2—Reinforced concrete Plain concrete (Fig. 2.2) has compressive strength—the ability to resist crushing loads; however, its tensile strength is only about 10% of its …