Journal: Journal of Structural Engineering

Abbreviation

J. Struct. Eng.

Publisher

American Society of Civil Engineers

Journal Volumes

ISSN

0733-9445
1943-541X

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Publications 1 - 10 of 46
  • Effect of ground motion sequence on response of squat reinforced concrete shear walls
    Item type: Journal Article
    Whyte, Catherine A.; Stojadinovic, Bozidar (2014)
    Journal of Structural Engineering
  • Cracked membrane model
    Item type: Journal Article
    Foster, Stephen J.; Marti, Peter (2003)
    Journal of Structural Engineering
  • Cyclic Tests Performed on Real-Scale Squat Reinforced Concrete Shear Walls: Transition between Diagonal Shear and Sliding Shear Controlled Behavior Modes
    Item type: Journal Article
    Pizarro Pohl, Diego; Kovarbašić, Milan; Stojadinovic, Bozidar (2025)
    Journal of Structural Engineering
    Squat reinforced concrete shear walls are commonly used as primary gravity and lateral load–resisting systems in structures. Such low aspect ratio walls respond to load in diagonal or sliding shear. A series of real-scale quasi-static cyclic shear wall tests with identical geometry were conducted at the Multi-Axial Subassemblage Testing (MAST) facility at ETH Zürich to identify the influence of the axial load ratio and the steel reinforcement ratios on the transition between diagonal shear and sliding shear controlled behavior modes. Two specimens failed in sliding shear, and the other two failed in shear, either in diagonal compression or diagonal tension. The tests showed that squat walls exhibiting a sliding shear failure remain stable under the applied axial load even at displacements corresponding to 2% drift ratio. On the other hand, the walls that failed in diagonal shear did so in a brittle manner at displacements corresponding to 1% drift ratio. However, walls that slid had large residual displacements. The values of the shear wall axial load ratio and the longitudinal and horizontal reinforcement ratios at the transition between shear and sliding were identified.
  • Seismic Resilience of the Water Distribution and the Cellular Communication Systems after the 2015 Gorkha Earthquake
    Item type: Journal Article
    Didier, Max; Baumberger, Salome; Tobler, Roman; et al. (2018)
    Journal of Structural Engineering
  • State Estimation for Prediction of Fatigue Life for a Rollercoaster Connection Subjected to Operational Multiaxial Nonproportional Loading
    Item type: Journal Article
    Tchemodanova, Sofia P.; Tatsis, Konstantinos; Sanayei, Masoud; et al. (2021)
    Journal of Structural Engineering
    Recent research on structural health monitoring has shown the applicability of Kalman filtering for fusion of models and data of dynamic systems. In this study, the augmented Kalman filter (AKF) is combined with a substructuring approach for the estimation of strain time histories at unmeasured locations of a rollercoaster connection, with the purpose of predicting remaining fatigue life. The AKF allows for response estimation in the absence of direct measurements of operational loads and in the presence of noisy measurements at limited locations of the instrumented system. The proposed research implements for the first time the AKF and a substructure with exclusively in-service strain measurements from a full-scale structure. Given that uniaxial fatigue life assessment methods often prove insufficient for large in-service structures with complex geometry and subjected to multiaxial nonproportional loadings, the critical plane method is here employed for estimation of fatigue life. The applicability of a substructuring approach combined with strain estimates from the AKF is demonstrated and evaluated with operational strain measurements obtained from an in-service rollercoaster support structure. It is shown that the proposed methodology and fine-tuning of the AKF parameters result in a close match of predicted and measured strains. © 2021 American Society of Civil Engineers
  • Cyclic Behavior of Physical Models of Reinforced Concrete Columns Built with Additive Manufacturing
    Item type: Journal Article
    Elmorsy, Medhat; Leinenbach, Christian; Vassiliou, Michalis F. (2025)
    Journal of Structural Engineering
    This paper presents quasistatic cyclic tests on 1:30 scale physical models of reinforced concrete columns with additively manufactured (3D-printed) reinforcement cages. Such physical models are useful for centrifuge modeling of RC structures focusing either on soil-structure interaction problems or on the statistical validation of system-level assumptions of numerical models used in earthquake engineering. A gypsum-based model concrete was used, because at such scales it can better model the tensile strength of concrete and the bond between concrete and reinforcement. Specimens of different reinforcement and axial load were tested and compared with a database of 197 full-scale rectangular RC columns that failed in flexural mode. Additionally, numerical models were built using the OpenSees platform, and their outcomes were compared with the experimental tests. It was found that the tested columns behaved similarly to full-scale columns in terms of strength, stiffness, and ductility observed in full-scale columns. Moreover, strain penetration was physically modeled more accurately, which eliminated the premature fracture of rebars observed in previous studies. Finally, the comparison between the numerical models and experimental results demonstrated that the component-level behavior of the tested columns can be predicted using commonly employed numerical modeling methods typically used for modeling RC structures.
  • Experimental and Numerical Study of Wind-Pressure Distribution on Irregular-Plan-Shaped Building
    Item type: Journal Article
    Bhattacharyya, Biswarup; Dalui, Sujit K. (2020)
    Journal of Structural Engineering
    This paper presents a detailed study on an E-plan-shaped (asymmetry about both plan axes) building under wind excitation (wind angles varied from 0° to 330° at an interval of 30°). This study is conducted by the wind-tunnel procedure and by utilizing the computational fluid dynamics (CFD) technique numerically. The numerical study is performed using the 𝑘���-𝜀��� and shear stress transport (SST) 𝑘���-𝜔��� models. The pressure contours and mean pressure coefficients of all the faces are computed by both approaches. The results show a good agreement between the experimentally and numerically computed results. The SST 𝑘���-𝜔��� model performed better in comparison with the 𝑘���-𝜀��� model for computing the mean pressure coefficients. The maximum positive and negative mean pressures of some faces of the building are found at skew wind angles. Additionally, a comparative study of the pressure variation with a symmetrical E-plan-shaped building (having the same cross-section area) is conducted in this paper. This study has shown that a drastic increment in the pressure variation is noticed for both the maximum positive and negative mean pressure coefficients due to a small aerodynamic modification.
  • Long-Term Performance Assessment of an Operative Post-Tensioned Timber Frame Structure
    Item type: Journal Article
    Granello, Gabriele; Leyder, Claude; Frangi, Andrea; et al. (2019)
    Journal of Structural Engineering
  • Dynamics of the Rocking Frame with Vertical Restrainers
    Item type: Journal Article
    Makris, Nicos; Vassiliou, Michalis F. (2015)
    Journal of Structural Engineering
  • Literature Review on Timber–Concrete Composite Structures in Fire
    Item type: Journal Article
    Hozjan, Tomaž; Bedon, Chiara; Ogrin, Anita; et al. (2019)
    Journal of Structural Engineering
Publications 1 - 10 of 46