Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to Grain
Under varying humidity and temperature conditions, with the constraint of metal fasteners to wood shrinkage, cracks along the bolt lines are generally observed in bolted glulam joints. A three-dimensional (3D) numerical model was established in software package ANSYS to investigate the cyclic behavi...
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| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2021-01-01
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| Series: | Advances in Civil Engineering |
| Online Access: | http://dx.doi.org/10.1155/2021/6612886 |
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| author | Jing Zhang Zhi-Fang Liu Yong Xu Mai-Li Zhang Liu-Cheng Mo |
| author_facet | Jing Zhang Zhi-Fang Liu Yong Xu Mai-Li Zhang Liu-Cheng Mo |
| author_sort | Jing Zhang |
| collection | DOAJ |
| description | Under varying humidity and temperature conditions, with the constraint of metal fasteners to wood shrinkage, cracks along the bolt lines are generally observed in bolted glulam joints. A three-dimensional (3D) numerical model was established in software package ANSYS to investigate the cyclic behavior of bolted glulam joints with local cracks. A reversed cyclic loading was applied in the parallel-to-grain direction. The accuracy of numerical simulation was proved by comparison with full-scale experimental results. Typical failure modes were reproduced in the numerical analysis with the application of wood foundation zone material model and cohesive zone material model. The effect of crack number and length on the hysteretic behavior of bolted glulam joints was quantified by a parametric study. It was found that initial cracks impair the peak capacity and elastic stiffness of bolted glulam joints significantly. More decrease in capacity was observed in joints with more cracks, and longer cracks affect elastic stiffness more dramatically. Moreover, with the existence of initial cracks, the energy dissipated and equivalent viscous damping ratio of bolted joints are reduced by 24% and 13.3%, respectively. |
| format | Article |
| id | doaj-art-2d370f75af874702a6c125fdddf6e671 |
| institution | Kabale University |
| issn | 1687-8086 1687-8094 |
| language | English |
| publishDate | 2021-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Advances in Civil Engineering |
| spelling | doaj-art-2d370f75af874702a6c125fdddf6e6712025-02-03T06:46:45ZengWileyAdvances in Civil Engineering1687-80861687-80942021-01-01202110.1155/2021/66128866612886Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to GrainJing Zhang0Zhi-Fang Liu1Yong Xu2Mai-Li Zhang3Liu-Cheng Mo4Department of Structural Engineering, Guangzhou University, Guangzhou 510006, ChinaGuangdong Architectural Design & Research Institute Co., Ltd., Guangzhou 510006, ChinaDepartment of Structural Engineering, Guangzhou University, Guangzhou 510006, ChinaDepartment of Structural Engineering, Guangzhou University, Guangzhou 510006, ChinaDepartment of Structural Engineering, Guangzhou University, Guangzhou 510006, ChinaUnder varying humidity and temperature conditions, with the constraint of metal fasteners to wood shrinkage, cracks along the bolt lines are generally observed in bolted glulam joints. A three-dimensional (3D) numerical model was established in software package ANSYS to investigate the cyclic behavior of bolted glulam joints with local cracks. A reversed cyclic loading was applied in the parallel-to-grain direction. The accuracy of numerical simulation was proved by comparison with full-scale experimental results. Typical failure modes were reproduced in the numerical analysis with the application of wood foundation zone material model and cohesive zone material model. The effect of crack number and length on the hysteretic behavior of bolted glulam joints was quantified by a parametric study. It was found that initial cracks impair the peak capacity and elastic stiffness of bolted glulam joints significantly. More decrease in capacity was observed in joints with more cracks, and longer cracks affect elastic stiffness more dramatically. Moreover, with the existence of initial cracks, the energy dissipated and equivalent viscous damping ratio of bolted joints are reduced by 24% and 13.3%, respectively.http://dx.doi.org/10.1155/2021/6612886 |
| spellingShingle | Jing Zhang Zhi-Fang Liu Yong Xu Mai-Li Zhang Liu-Cheng Mo Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to Grain Advances in Civil Engineering |
| title | Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to Grain |
| title_full | Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to Grain |
| title_fullStr | Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to Grain |
| title_full_unstemmed | Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to Grain |
| title_short | Cyclic Behavior and Modeling of Bolted Glulam Joint with Cracks Loaded Parallel to Grain |
| title_sort | cyclic behavior and modeling of bolted glulam joint with cracks loaded parallel to grain |
| url | http://dx.doi.org/10.1155/2021/6612886 |
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