Shear strength of pseudo strain hardening cementitious composite coupling beam

Park, Wan-Shin; Kim, Sun-Woo

doi:10.1016/j.compositesb.2010.12.014

Cited by 9 publications

(6 citation statements)

References 5 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…However, this method increases the difficulty of construction to a certain extent. By altering the fundamental composition materials of connected beams, Canbolat et al [7] introduced fiber-reinforced concrete (FRC) into the structure, while Park W S et al [8] incorporated steel fiber-polyethylene mixed fibers into the beams. The results revealed a significant enhancement in the shear capacity of these connected beams when compared to regular concrete-connected beams.…”

Section: Introductionmentioning

confidence: 99%

Cyclic behavior and numerical study of PRC coupling beam with steel truss floor slab

Nie,

Zhang,

Liu

et al. 2023

Mater. Res. Express

View full text Add to dashboard Cite

The coupling beam with small span-to-depth ratio is prone to brittle shear failure under the action of earthquake, so it can not play its role as the first line of defense against earthquake. Therefore, this paper proposes a method for calculating the shear bearing capacity of PRC-connected beams with reinforced truss floor plates. A more rational calculation model should be adopted based on its mechanical mechanism. In this study, ABAQUS finite element software is utilized to explore the parameters of PRC-connected beams with steel truss plates, including the span-to-height ratio, reinforcement ratio of the internal steel plate, diameter of upper and lower chord bars, and diameter of abdominal bars. The analysis shows that the span-to-height ratio, steel plate ratio and concrete compressive strength have a significant effect on the seismic behavior of PRC coupling beams with steel truss floor slab. Based on the softened tension-compression bar model combined with the multi-strip model, the theoretical calculation method of the shear capacity of PRC connected beams with steel truss bearing plates is derived. The results of comparison test and simulation verify the accuracy of the calculation results, and provide a design basis for the engineering application of PRC connected beams with steel truss floor plates.

show abstract

Section: Introductionmentioning

confidence: 99%

Cyclic behavior and numerical study of PRC coupling beam with steel truss floor slab

Nie,

Zhang,

Liu

et al. 2023

Mater. Res. Express

View full text Add to dashboard Cite

show abstract

“…Zij et al [ 11 ] studied the shear performance of SHCC beams with fiber doping as a variable; the results showed that the cracks were sparse at less than 2% fiber doping in pure shear stress conditions, and dense cracks were produced at the notch at more than 2% with the highest shear strength and better reliability of shear resistance. Park et al [ 12 ] designed shear tests of strain-hardening, fiber-reinforced cement-based composite (SHCC) beams with steel fibers, polyethylene fibers, and prebuilt materials, and found that all three materials significantly improved the shear strength of RC beams compared with ordinary concrete members. Alyousif [ 13 ] designed shear tests of beams without webs using the shear-to-span ratio and reinforcement ratio as parameters, and the results showed that Ryerson mix concrete (RMC) (i.e., ultra-high-strength fiber-reinforced cementitious composite) beams have a higher shear-bearing capacity and yield stiffness than ECC beams.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study of the Shear Performance of Combined Concrete–ECC Beams without Web Reinforcement

Cheng,

Du,

Wang

et al. 2023

Materials

View full text Add to dashboard Cite

Background: Shear damage of beams is typically brittle damage that is significantly more detrimental than flexural damage. Purpose: Based on the super-high toughness and good crack control ability of engineered cementitious composites (ECC), the shear performance of concrete–ECC beams was investigated by replacing a portion of the concrete in the tensile zone of reinforced concrete beams with ECC and employing high-strength reinforcing bars to design concrete–ECC beams. The purpose of this investigation is to elucidate and clarify the shear performance of concrete–ECC beams. Methodology/approach: Experimental and FE analyses were conducted on the shear performance of 36 webless reinforced concrete–ECC composite beams with varied concrete strengths, shear-to-span ratios, ECC thicknesses, and interfacial treatments between the layers. Results: The results indicate that the effect of the shear-to-span ratio is greater, the effect of the form of interface treatment is smaller, the effect is weakened after the ECC thickness is greater than 70 mm (i.e., the ratio of the replacement height to section height is approximately 0.35), the shear resistance is reduced when the hoop rate is greater, and the best shear resistance is obtained when the ECC 70 mm thickness and the hoop rate of 0.29% are used together. Conclusions: This study can serve as a technical reference for enhancing the problems of low durability and inadequate fracture control performance of RC beams in shear and as a guide for structural design research.

show abstract

“…Due to the excellent performance of the ECC, some researches carry out the theoretical study, macro and micro design and practical application for the ECC and ECC structures [4][5]. However, there are still no clear and mature codes and standards for the mix proportion and forming method of the ECC, which leads to that the performance of the prepared ECC is not ideal in many cases [6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Study on Optimal Mix Proportion of PVA-ECC Based on Strength-Deformation-AHP

Zheng

Wang

Cui

et al. 2014

AMR

View full text Add to dashboard Cite

Considering the essential influencing factors for the mechanical properties of the engineered cementitious composite (ECC), the polyvinyl alcohol (PVA) fiber was used and a batch of cube specimens and thin plate specimens of PVA-ECC were manufactured based on the variation of water cement ratio, amount of fly ash and amount of water reducer. The compressive strength test for the PVA-ECC cube specimens and the flexural strength test for the PVA-ECC thin plate specimens were conducted. A practical decision-making frame based on the Analytic Hierarchy Process (AHP) method was proposed to solve the problem of the optimal mix proportion of PVA-ECC, which can take into account the compressive strength, the flexural strength and the corresponding deformation capacity together.

show abstract

Shear strength of pseudo strain hardening cementitious composite coupling beam

Cited by 9 publications

References 5 publications

Cyclic behavior and numerical study of PRC coupling beam with steel truss floor slab

Cyclic behavior and numerical study of PRC coupling beam with steel truss floor slab

Experimental Study of the Shear Performance of Combined Concrete–ECC Beams without Web Reinforcement

Study on Optimal Mix Proportion of PVA-ECC Based on Strength-Deformation-AHP

Contact Info

Product

Resources

About