Modelling and analysis the effect of unbalanced moment directions on behaviour of edge column-slab connections

Sudarsana, I Ketut; Wiryadi, I Gede Gegiranang; Susila, Gede Adi

doi:10.1051/matecconf/201815901007

Cited by 3 publications

(4 citation statements)

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“…In order to have a suitable value of the CDPs parameters (ψ, ɛ, σ b /σ c , K, µ), a calibration proses was needed. In this study, a calibration have been done based on one of the experimental results of specimen XXX tested by [13] and have been presented in [14]. It was obtained that the finite element analysis gave good correlation to experimental results for the values of dilatation angle ψ = 40 o , eccentricity ɛ c = 0.1, K c = 2/3, ratio σ bo /σ co = 1.16, and viscosity parameter µ = 0.00005.…”

Section: Fe Modelling and Materials Propertiesmentioning

confidence: 96%

“…The specimen models considered in this study are the same properties as in [5]. However, the primary parameter to be studied is M/V ratio due to unbalanced moment perpendicular to slab free edge.…”

Section: Specimen Modelsmentioning

confidence: 99%

“…The shear capacity of the connections can be multiplied by 0.67 to account the effect of the unbalanced moment in the connections [2]. The punching failure pattern on the slab around the column is following the direction of unbalance moment [5].…”

Section: Introductionmentioning

confidence: 99%

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Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

2019

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The occurrence of unbalanced moment in edge slab-column connections of flat plate structure cannot be avoided and increase the slab shear stress around the column. This paper investigates the effect of M/V ratio on punching shear strength of edge column-slab connections using finite element analysis. The Concrete Damage Plasticity (CDP) and truss model in Abaqus were used to model the nonlinear behavior of concrete and reinforcement, respectively. Ten values of the M/V ratio were applied to a subassembly edge connection model which was part of a properly design of a 5 story flat plate structure. The shear strength prediction of ACI 318-14 code on the effect of unbalanced moment in edge column-slab connection was also studied. The analysis results show that the effect of unbalanced moment on shear strength is not significant for M/V ratio less than 0.3. However, for M/V ratio greater than 0.3, the shear strength is reduced in an exponential order. The ACI 318-14 code overestimates prediction on connection’s shear strength for the M/V ratio less than 0.3. The code predictions are in a good agreement with the analysis results for the edge connection with the M/V ratio greater than 0.3.

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Section: Fe Modelling and Materials Propertiesmentioning

confidence: 96%

Section: Specimen Modelsmentioning

confidence: 99%

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Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

2019

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“…Fluvial meander system developed typical oxbow lake morphology with tropical rain forest, sand bar and river with fishery product. It has been used as a local attraction (Yuskar, 2016); (Choanji et al, 2018).…”

Section: Geological Settingmentioning

confidence: 99%

Quarternary Sediment Characteristics of Floodplain area: Study Case at Kampar River, Rumbio Area and Surroundings, Riau Province

Yuskar¹,

Putra²,

Revanda³

2018

J. Geoscience Eng. Environ. Technol.

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The study area is located in some floodplains of meandering river environment along the Kampar River, Rumbio. Typical morphology of meandering river that found in this area can be classified as stream channel, floodplain, abandoned channel, and sand bars deposit. Meandering river system carries sediment supply by suspended and bed -load (mixed load) in conjunction with low energy into a particular characteristic on sediment deposition. This study aims to determine the characteristics of the sediments, changes in vertical and lateral spread of sediment deposition on the floodplain environment. This study conducted by field survey using a hand auger of 1.5m -4m depth and trenching which is a layer that has been exposed of 1-2 meters depth. Further analysis had been carried out using granulometri method and core data analysis to determine the characteristics and depositional facies. Sediment deposit that formed along the Kampar River is the result of the main channel migration of Kampar River. The characteristic of quaternary sediment facies is coarse to gravelly sand on the bottom followed by fine to very fine sand with pattern fining upwards and silt to clay and abundant terrestrial organic matter at the uppermost layer. Depositional facies are determined based on the characteristics of sediment facies which can be grouped into a stream channel, oblique accretion deposits, sand bars and overbank deposits.

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Identification Of Sinter Silica Evolutionary Manifestation As A Bicarbonate Travertine Based On Isotope ₁₈O And ₂H Review Of Local Meteoric Water Line Curves As Determinant Of Outflow Fluid Reservoir In Cisolok-Cisukarame Geothermal System

Gleamen

Lutfi

Didit

et al. 2019

J. Phys.: Conf. Ser.

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Cisolok geothermal system located in Cisolok district, Sukabumi regency has undergone an evolution. One of the indication is the transformation of its surface manifestation from Silica sinter to Bicarbonate travertine. The existence of this travertine indicates the presence of bicarbonate spring and reservoir systems temperatures below 150°C, which are the hallmark of two-phase liquid dominated geothermal systems. Analysis of stable isotopes (18O and 2H) is used to identify the reservoir water’s source affecting the evolution of Cisolok’s surface manifestations. The stable isotopes are then compared with the global and local meteoric water line. The contents of isotope 18O and 2H, after being compared with the global and local meteoric water line, gives a visual data that’s adjacent and in line with the local meteoric line. This indicates that the hot water from Cisukarame manifestation originates from local meteoric water, which is the result of evaporation and precipitation from the local water. The evolution of the geothermal system in this area is indicated by the increase of isotope 18O content in water and a decrease of the same isotope among the rocks. Indication of the temperature reduction in this area, which is estimated to have happened over a period of 10,000-50,000 years, involves a diagenesis reaction and an amorphous silica hydrolysis that caused the increase of 18O and dD levels in the water. With two-phase liquid dominated geothermal systems, there’ll be many outflows that bring diverse manifestations. The results of the data analysis show that the evolution of the Cisolok geothermal system occurs due to the contact between reservoir fluid and limestone lithology at a depth of 350-600 meters which causes the Cl water content in the system to transform into HCO3 water content and alter the surface manifestations of silica sinter containing amorphous silica into a travertine containing bicarbonate.

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Modelling and analysis the effect of unbalanced moment directions on behaviour of edge column-slab connections

Cited by 3 publications

References 15 publications

Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

Quarternary Sediment Characteristics of Floodplain area: Study Case at Kampar River, Rumbio Area and Surroundings, Riau Province

Identification Of Sinter Silica Evolutionary Manifestation As A Bicarbonate Travertine Based On Isotope ₁₈O And ₂H Review Of Local Meteoric Water Line Curves As Determinant Of Outflow Fluid Reservoir In Cisolok-Cisukarame Geothermal System

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Modelling and analysis the effect of unbalanced moment directions on behaviour of edge column-slab connections

Cited by 3 publications

References 15 publications

Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

Finite element analysis of the effect M/V ratios on punching shear strength of edge slabcolumn connections of flat plate structure

Quarternary Sediment Characteristics of Floodplain area: Study Case at Kampar River, Rumbio Area and Surroundings, Riau Province

Identification Of Sinter Silica Evolutionary Manifestation As A Bicarbonate Travertine Based On Isotope 18O And 2H Review Of Local Meteoric Water Line Curves As Determinant Of Outflow Fluid Reservoir In Cisolok-Cisukarame Geothermal System

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Identification Of Sinter Silica Evolutionary Manifestation As A Bicarbonate Travertine Based On Isotope ₁₈O And ₂H Review Of Local Meteoric Water Line Curves As Determinant Of Outflow Fluid Reservoir In Cisolok-Cisukarame Geothermal System