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Bearing Resistance

The Experts below are selected from a list of 324 Experts worldwide ranked by ideXlab platform

D T Bergado – 1st expert on this subject based on the ideXlab platform

  • Analytical model of interaction between hexagonal wire mesh and silty sand backfill
    Canadian Geotechnical Journal, 2001
    Co-Authors: D T Bergado, P. Voottipruex, A Srikongsri, Chairat Teerawattanasuk

    Abstract:

    The interaction behavior between hexagonal wire mesh and silty sand backfill can be evaluated from pullout tests. The pullout Resistance of the hexagonal wire mesh reinforcement consists of two components, namely friction Resistance and passive Bearing Resistance. The friction Resistance – relative displacement relationship of a hexagonal wire mesh can be simulated by a linear elastic – perfectly plastic model. The passive Bearing Resistance of an individual Bearing member can be modelled by a hyperbolic function. The friction Resistances for galvanized and PVC-coated hexagonal wire mesh were 25 and 21%, respectively, of the total pullout Resistance. A new analytical model for predicting the pullout Resistance of hexagonal wire mesh reinforcement has been proposed. The proposed solution can estimate the maximum pullout force at different reinforcement levels from observed horizontal movement of a hexagonal wire mesh reinforcement.Key words: hexagonal wire mesh, necking phenomena, Bearing Resistance, analy…

  • INTERACTION BETWEEN HEXAGONAL WIRE MESH REINFORCEMENT AND SILTY SAND BACKFILL
    Geotechnical Testing Journal, 2001
    Co-Authors: D T Bergado, Chairat Teerawattanasuk, T Wongsawanon, P. Voottipruex

    Abstract:

    Pullout tests were conducted on hexagonal wire mesh embedded in silty sand locally known as Ayuttaya sand to investigate the soil reinforcement interaction. Two types of hexagonal wire mesh were tested, namely: (a) galvanized (zinc-coated) which has smaller aperture (cell) dimension of 60 by 80 mm and (b) PVC-coated which has larger aperture (cell) dimension of 80 by 100 mm. The tests were conducted under normal pressures ranging from 35 to 91 kPa and the specimens were pulled at a rate of 1 mm/min. The total pullout Resistance of hexagonal wire mesh reinforcement consists of two components, namely; friction and Bearing Resistance. The Bearing Resistance is higher than the friction Resistance for both types of reinforcement. Higher friction and Bearing Resistances were obtained with increasing normal pressures. The friction and Bearing Resistances mobilized on the galvanized wire mesh were greater than the PVC-coated wire mesh, due to higher friction coefficient as well as greater number of transverse and longitudinal members (elements) per unit width in the former than the latter. The proposed analytical method of predicting the pullout Resistance and displacement relation using the basic soil and reinforcement properties agreed with the test results reasonably well.

  • prediction of pullout Resistance and pullout force displacement relationship for inextensible grid reinforcements
    Soils and Foundations, 1996
    Co-Authors: D T Bergado, Jinchun Chai, Norihiko Miura

    Abstract:

    A new analytical method is proposed for determining the inextensible grid reinforcement pullout Resistance and pullout force/pullout displacement curve by using basic backfill soil and grid reinforcement properties. The pullout skin friction Resistance/pullout displacement relationship is simulated by linear elastic-perfectly plastic model. A hyperbolic model has been proposed to represent the pullout Bearing Resistance/pullout displacement relationship in which the maximum Bearing Resistance of a single Bearing member is determined using a new Bearing capacity equation proposed in this paper. The influences of the grid Bearing member spacing ratio, S/D, the Bearing member deflection rigidity, and the pullout softening behavior on the mobilization of pullout Bearing Resistance are explicitly included in the proposed model. Good agreement has been obtained between calculated values and laboratory test results.

Yan Bo Wang – 2nd expert on this subject based on the ideXlab platform

  • Behavior-Based Resistance Model for Bearing-Type Connection in High-Strength Steels
    Journal of Structural Engineering-asce, 2020
    Co-Authors: Guo-qiang Li, Yan Bo Wang

    Abstract:

    AbstractThis paper investigates the Bearing Resistance of bolted connections with consideration of bolt hole elongations. Based on the test results of 27 single-bolt connections and 36 two-bolt con…

  • Bearing-strength of high strength steel plates in two-bolt connections
    Journal of Constructional Steel Research, 2019
    Co-Authors: Yan Bo Wang, Guo-qiang Li, J.y. Richard Liew

    Abstract:

    Abstract This paper presents an experimental and numerical study on the Bearing behavior of two-bolt connections arranged in the direction perpendicular to load between high-strength steel members. A series of 36 connections are fabricated from steels with nominal yield strength of 550 MPa, 690 MPa and 890 MPa and tested to failure in double shear. The effect of steel grades, end distance, edge distance and bolt spacing on the failure mode, Bearing Resistance and deformation capacity are investigated with the supplementary data from the validated numerical model. To explain the reduced Bearing Resistance compared to tearout failure, the mechanism of splitting failure in two-bolt connections is analyzed with the assistance of numerical simulation. The boundaries to identify tearout failure, splitting failure and mixed failure with the combined features of necking and tearout are derived. A formula to predict the ultimate Resistance of mixed failure is proposed. To achieve an optimum use of high strength materials, an optimal range of edge distance to bolt spacing distance ratio is suggested based on the parametric analysis. Comparison with test results show that Eurocode3 method can be extended to bolted connections between high strength steel members with considerable margin of safety.

  • Numerical analysis on the ultimate Bearing Resistance of single-bolt connection with high strength steels
    Journal of Constructional Steel Research, 2019
    Co-Authors: Yan Bo Wang, Guo-qiang Li, Jin Jiang

    Abstract:

    Abstract This paper presents a numerical investigation on the Bearing behavior of single-bolt connections with high strength steels in double shear. To simulate the phenomenon of accumulation damage shown in the post-peak behavior of bolt Bearing and investigate the failure mechanism of tearout and splitting, the framework of ductile metal damage was used in the numerical model. The model was verified against the test results of bolted connections between high strength steel members. With the validated numerical model, a saddle-shaped distribution of the equivalent plastic strain was observed around the bolt hole, which explains the initiation and propagation of the fracture. A pure shear stress band, which is coincidence with the shear fracture in the experiments, was observed in the numerical analysis. In addition, the reduction of ultimate Bearing Resistance in splitting failure is explained by the increasing of lateral tensile stress at the tip of plate end with the decrease of edge distance. An extensive parametric study of 513 specimens was carried out to evaluate the effect of edge distance and end distance on ultimate Bearing Resistance. The boundary between tearout and splitting failure was established based on the distribution patterns of lateral tensile stress around the plate end. Finally, a new formula for predicting the ultimate Bearing Resistance with consideration of splitting failure was proposed.

Guo-qiang Li – 3rd expert on this subject based on the ideXlab platform

  • Behavior-Based Resistance Model for Bearing-Type Connection in High-Strength Steels
    Journal of Structural Engineering-asce, 2020
    Co-Authors: Guo-qiang Li, Yan Bo Wang

    Abstract:

    AbstractThis paper investigates the Bearing Resistance of bolted connections with consideration of bolt hole elongations. Based on the test results of 27 single-bolt connections and 36 two-bolt con…

  • Bearing-strength of high strength steel plates in two-bolt connections
    Journal of Constructional Steel Research, 2019
    Co-Authors: Yan Bo Wang, Guo-qiang Li, J.y. Richard Liew

    Abstract:

    Abstract This paper presents an experimental and numerical study on the Bearing behavior of two-bolt connections arranged in the direction perpendicular to load between high-strength steel members. A series of 36 connections are fabricated from steels with nominal yield strength of 550 MPa, 690 MPa and 890 MPa and tested to failure in double shear. The effect of steel grades, end distance, edge distance and bolt spacing on the failure mode, Bearing Resistance and deformation capacity are investigated with the supplementary data from the validated numerical model. To explain the reduced Bearing Resistance compared to tearout failure, the mechanism of splitting failure in two-bolt connections is analyzed with the assistance of numerical simulation. The boundaries to identify tearout failure, splitting failure and mixed failure with the combined features of necking and tearout are derived. A formula to predict the ultimate Resistance of mixed failure is proposed. To achieve an optimum use of high strength materials, an optimal range of edge distance to bolt spacing distance ratio is suggested based on the parametric analysis. Comparison with test results show that Eurocode3 method can be extended to bolted connections between high strength steel members with considerable margin of safety.

  • Numerical analysis on the ultimate Bearing Resistance of single-bolt connection with high strength steels
    Journal of Constructional Steel Research, 2019
    Co-Authors: Yan Bo Wang, Guo-qiang Li, Jin Jiang

    Abstract:

    Abstract This paper presents a numerical investigation on the Bearing behavior of single-bolt connections with high strength steels in double shear. To simulate the phenomenon of accumulation damage shown in the post-peak behavior of bolt Bearing and investigate the failure mechanism of tearout and splitting, the framework of ductile metal damage was used in the numerical model. The model was verified against the test results of bolted connections between high strength steel members. With the validated numerical model, a saddle-shaped distribution of the equivalent plastic strain was observed around the bolt hole, which explains the initiation and propagation of the fracture. A pure shear stress band, which is coincidence with the shear fracture in the experiments, was observed in the numerical analysis. In addition, the reduction of ultimate Bearing Resistance in splitting failure is explained by the increasing of lateral tensile stress at the tip of plate end with the decrease of edge distance. An extensive parametric study of 513 specimens was carried out to evaluate the effect of edge distance and end distance on ultimate Bearing Resistance. The boundary between tearout and splitting failure was established based on the distribution patterns of lateral tensile stress around the plate end. Finally, a new formula for predicting the ultimate Bearing Resistance with consideration of splitting failure was proposed.