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Strut-and-Tie Model for Predicting the Shear Strength of Exterior Beam-Column Joints without Transverse Reinforcement
| 题名： | Strut-and-Tie Model for Predicting the Shear Strength of Exterior Beam-Column Joints without Transverse Reinforcement |
| 正文语种： | eng |
| 作者： | Mashhadi, Reza;Diznab, Mohammad Ali Dastan;Tehrani, Fariborz M. |
| 作者单位： | Arak Univ Fac Engn Dept Civil Engn Karbala Blvd Arak 3848177584 Iran;Arak Univ Fac Engn Inst Adv Technol Dept Civil Engn Karbala Blvd Arak 3848177584 Iran;Calif State Univ Fresno Dept Civil & Geomat Engn 2320 E San Ramon Ave Fresno CA 93740 USA |
| 摘要： | This paper presents an analytical approach to predicting the shear strength of exterior beam-column joints without transverse reinforcement using a strut-and-tie model (STM). The proposed model contains a single diagonal strut with varied angle and width for modeling the shear behavior. Modeling analyses involve three approaches to determine the width and angle of the diagonal strut for the best prediction of experimental shear strength values. An experimental database of 25 exterior beam-column joints without transverse reinforcement and without confining out-of-plane members was developed to verify the accuracy of the model predictions. The presented analyses reveal that existing models may overestimate the shear strength of referenced joints and, therefore, highlight the need for a better fitting model. The discussions include a comparison of predicted joint shear strength values with existing experimental results using three different formulations. Moreover, the discussions examine existing code requirements and the reliability of the presented STM in comparison with code regulations. Concluding remarks supported by statistical measures highlight the fitness of the STM to safely predict the shear strength and identify the optimum approach to determining the model geometry. (C) 2021 American Society of Civil Engineers. |
| 出版年： | 2022 |
| 期刊名称： | Journal of structural engineering |
| 卷： | 148 |
| 期： | 2 |
| 页码： | 04021256.1-04021256.13 |
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