The size of reinforced concrete walls in this study was 950 mm × 950 mm × 160 mm. PVC pipes with a diameter of 40 mm were used to prefabricate holes to ensure the accuracy of the hole parameters, and the spacing among holes were all 300 mm. The depths ...
🕑 Reading time: 1 minute Failure modes in reinforced concrete beams are classified into two major types: flexural failure and shear failure.The former occurs when the imposed load exceeds the flexural capacity of the materials of the beam, while the latter occurs due to deficiency in shear resistance between different materials of the beam.
2. Ultimate concrete strain is 0.003 3. Tensile strength of concrete and FRP compressive strength are neglected 4. FRP is perfectly bonded to concrete 5. Stress-strain of FRP is linear until failure Ultimate Flexural Strength and Demand: M n = nominal capacity M u = factored demand = strength reduction factor (depends on the mode of failure ...
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 Ning and Jianzhuang …
Reinforced concrete (RC) wall-type structures are crucial to the safety and serviceability of buildings subject to earthquakes. The shear strength of elements in walls depends strongly on the ...
In reinforced concrete beams of normal proportions without shear reinforcement, shear failure can occur by breakdown of the concrete cantilevers between the diagonal tension cracks due to bond forces arising from beam action. Although extensive analytical and experimental work has improved the understanding of the behavior of reinforced ...
The fractal theory can effectively describe the complexity and multi-scale of concrete under impact load and provide a scientific basis for evaluating concrete's impact resistance. Therefore, based on the fractal …
The torsional strength of reinforced concrete members which fail by yielding of the reinforcement can be accurately predicted by design codes like ACI 318-19 and the Canadian design standard, CSA ...
As UHPC possesses a unique combination of ultra-high compressive strength, sustained postcracking tensile capacity, and high bond with steel bars, reinforced UHPC (R-UHPC) beams with longitudinal steel bars show different failure mechanisms from conventional reinforced concrete (RC) beams.
The response of reinforced concrete (RC) shear wall as a lateral resisting member has been studied extensively, but it still demands a general practical model that identifies the envelope within ...
Fiber-reinforced polymer (FRP) bars, are noncorrosive material and utilized as a substitute for steel bars in concrete structures to overcome the insufficient durability of conventional steel-bar reinforced concrete (RC) [1].Nevertheless, the lower elastic moduli of the typically used glass fiber-reinforced polymer (GFRP) and BFRP bars lead to FRP bars …
A highly efficient, low-carbon crushing technology is urgently needed for recycling demolished reinforced concrete (RC) components. Static pressure crushing (SPC), based on fragmentation theory, is a proposed solution. This paper presents a numerical model and a corresponding quantitative analysis method for the SPC of RC components.
For reinforced concrete components, research is still limited, especially the HVPD crushing of concrete slabs, which has not yet been reported. To promote the application of HVPD crushing technology in actual projects, in-depth research work should be carried out on the HVPD crushing effect of reinforced concrete members, especially concrete ...
The design of reinforced concrete structures has traditionally relied on empirical techniques based on experience or experimental research on actual structural members.
Improving the performance of recycled brick aggregates to enhance concrete performance is the key to promoting recycled concrete technology. In this paper, pure bacteria (Bacillus subtilis) and unoptimized activated sludge mixed bacteria are used to reinforce recycled brick aggregates by soaking them, and a multi-faceted assessment evaluation of microbial …
The flexural performance of reinforced concrete beams with externally bonded carbon fiber reinforced polymer (CFRP) fabrics were studied in terms of fabric length and thickness. The internal steel reinforcement ratio and preloading on the behavior of the strengthened beams are discussed. It was
Concrete crushing after yielding of steel reinforcement represents an under-reinforced member, which is typical of current reinforced concrete design standards. This failure mode ensures that a high level of member ductility is maintained prior to failure, thus providing …
The results of a series of experimental bending tests carried out on reinforced concrete members without transverse reinforcement are reported and illustrated as a …
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 some challenges …
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 to the strength enhancement …
Behavior of ten-story reinforced concrete walls subjected to earthquake motions. JD Aristizabal-Ochoa, MA Sozen. University of Illinois, 1976. 67: 1976: Large deflection and postbuckling behavior of Timoshenko beam–columns with semi-rigid …
AMA Style. Lin X, Yang F, Liu Y, Yang Y. Research on the Crushing of Reinforced Concrete Two-Way Slabs by Pulse Power Discharge Technology.
Precast concrete is reinforced concrete that is cast away from the building site, and assembled on site. Some (but not all) precast concrete is available in standard shapes and dimensions: floor …
Nonlinear finite element (FE) analysis of reinforced concrete (RC) structures is characterized by numerous modeling options and input parameters.
where. f y = the yield stress of the steel reinforcement (we will use 60 ksi in all examples). f c ' = the compressive cylinder strength of the concrete (ksi). ρ = the steel ratio, A s /(bd) For given values of f y and f c ', the relationship between R and ρ can be computed from Equation 5.13. Appendix Table A-5.9 gives typical values of R and ρ for f y = 60 ksi, and f c ' ranging from …
Crushing Reinforced Concrete A RM 120GO! crushes concrete with rebar down to a 1 1/2"- base product in closed circuit setup. RM 70GO! 2.0 Crushing Concrete The RM 70GO! 2.0 Mobile Compact Crusher produces a 1 1/2"- base material. Only one operator is …
Fiber-reinforced polymer (FRP) composites do not only possess superior mechanical properties, but can also be easy to tailor, install, and maintain. As such, FRPs offer novel and attractive solutions to facilitate strengthening and/or retrofitting of aging, weakened, and upgraded structures. Despite the availability of general code provisions, the design and analysis of FRP …
reinforced concrete components and structures to earthquake ground motion with an emphasis on seismic performance and rehabilitation of existing structures. Fig. 3—Hysteretic model for steel spring.
Nonlinear finite element (FE) analysis of reinforced concrete (RC) structures is characterized by numerous modeling options and input parameters. To accurately model the nonlinear RC …
Results of an experimental investigation of isolated reinforced concrete structural walls subjected to inelastic load reversals are discussed and evaluated. Walls subjected to significant inelastic deformations and with strengths limited by concrete crushing of the web after flexural yielding are considered in this paper. It is shown that 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, …
It is followed by a summary of the various analytical tools available to engineers interested in analyzing the nonlinear behavior of reinforced concrete members for dynamic load. These range from ...
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 by rigid elements.
The American Concrete Institute. Founded in 1904 and headquartered in Farmington Hills, Michigan, USA, the American Concrete Institute is a leading authority and resource worldwide for the development, dissemination, and adoption of its consensus-based standards, technical resources, educational programs, and proven expertise for individuals and organizations …
crushing strengths of structural walk are predicted as a function of concrete strength, axial load, and lateral interstory drift. Results of an experimental investigation of isolated reinforced …
reinforced concrete—structural concrete with at least a code-prescribed minimum amount of prestressed or nonpre-stressed reinforcement. Fiber-reinforced concrete is not considered reinforced concrete according to this definition. secondary reinforcement—nonstructural reinforcement such as welded wire fabric, fibers, or bars to minimize crack
Reinforced concrete shear wall (RC wall) is an important element in tall buildings, which provides strength and stiffness against lateral loadings, e.g. earthquake and wind. Numerous researches ...
To solve this problem, a finite element model of an RC slab was established by ABAQUS. The effect of a shock wave generated by PPD on the surrounding concrete was …
Nonlinear finite element (FE) analysis of reinforced concrete (RC) structures is characterized by numerous modeling options and input parameters. To accurately model the nonlinear RC behavior involving concrete cracking in tension and crushing in compression, practitioners make different choices regarding the critical modeling issues, e.g ...
Concrete is a commonly used building material. In general it is weak in tension and brittle under low confining pressure. The demand for new concrete composites with improved qualities is due to the development of …