Study of shear performance of steel-timber composite connection with different shear connectors
The shear resistance of steel-timber composite (STC) connections largely depends on the shear performance of shear connectors. Three types of shear connectors, i.e., welded stud, screw, and screw-grout were considered in this paper. The failure modes, load-slip curves, shear stiffnesses, and shear c...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2024-12-01
|
| Series: | Case Studies in Construction Materials |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S221450952401218X |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1846137766487785472 |
|---|---|
| author | Ernian Zhao Qi Song Jing-Ru Yao Xin Zhang |
| author_facet | Ernian Zhao Qi Song Jing-Ru Yao Xin Zhang |
| author_sort | Ernian Zhao |
| collection | DOAJ |
| description | The shear resistance of steel-timber composite (STC) connections largely depends on the shear performance of shear connectors. Three types of shear connectors, i.e., welded stud, screw, and screw-grout were considered in this paper. The failure modes, load-slip curves, shear stiffnesses, and shear carrying capacity of the STC connection with three different connectors were experimentally and theoretically investigated under various shear connector diameters and glulam panel thicknesses. The experimental results indicated that the shear carrying capacity and stiffness of the welded stud connections are 1.49 and 5.17 times higher than those of the screw connection under identical cases, respectively. The failure patterns of welded stud connection were characterized by shear failure of the stud, crushing failure in the grout blocks and splitting failure of the glulam panel. In contrast to welded stud connections, screw and screw-grout connections exhibited significant crushing failure of glulam. It indicated that the grout used in welded stud connection can effectively mitigate or avoid crushing failure in the glulam panel. A simplified and feasible theoretical formula was developed to predict the shear carrying capacity of the STC connection with welded stud connector. Compared with the predictions of GB 50017-2017, AISC 360-16, and EC 4, the developed formula for the shear carrying capacity of welded stud connection provided a reasonable prediction with an error within 15 %. |
| format | Article |
| id | doaj-art-e83555d1ccb24d108f13f5efd86a3424 |
| institution | Kabale University |
| issn | 2214-5095 |
| language | English |
| publishDate | 2024-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Case Studies in Construction Materials |
| spelling | doaj-art-e83555d1ccb24d108f13f5efd86a34242024-12-08T06:10:19ZengElsevierCase Studies in Construction Materials2214-50952024-12-0121e04066Study of shear performance of steel-timber composite connection with different shear connectorsErnian Zhao0Qi Song1Jing-Ru Yao2Xin Zhang3Key Laboratory of Building Structural Retrofitting and Underground Space Engineering (Shandong Jianzhu University), Ministry of Education, Jinan 250101, China; School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaSchool of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaKey Laboratory of Building Structural Retrofitting and Underground Space Engineering (Shandong Jianzhu University), Ministry of Education, Jinan 250101, China; School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, China; Corresponding author at: Key Laboratory of Building Structural Retrofitting and Underground Space Engineering (Shandong Jianzhu University), Ministry of Education, Jinan 250101, China.Key Laboratory of Building Structural Retrofitting and Underground Space Engineering (Shandong Jianzhu University), Ministry of Education, Jinan 250101, China; School of Civil Engineering, Shandong Jianzhu University, Jinan 250101, ChinaThe shear resistance of steel-timber composite (STC) connections largely depends on the shear performance of shear connectors. Three types of shear connectors, i.e., welded stud, screw, and screw-grout were considered in this paper. The failure modes, load-slip curves, shear stiffnesses, and shear carrying capacity of the STC connection with three different connectors were experimentally and theoretically investigated under various shear connector diameters and glulam panel thicknesses. The experimental results indicated that the shear carrying capacity and stiffness of the welded stud connections are 1.49 and 5.17 times higher than those of the screw connection under identical cases, respectively. The failure patterns of welded stud connection were characterized by shear failure of the stud, crushing failure in the grout blocks and splitting failure of the glulam panel. In contrast to welded stud connections, screw and screw-grout connections exhibited significant crushing failure of glulam. It indicated that the grout used in welded stud connection can effectively mitigate or avoid crushing failure in the glulam panel. A simplified and feasible theoretical formula was developed to predict the shear carrying capacity of the STC connection with welded stud connector. Compared with the predictions of GB 50017-2017, AISC 360-16, and EC 4, the developed formula for the shear carrying capacity of welded stud connection provided a reasonable prediction with an error within 15 %.http://www.sciencedirect.com/science/article/pii/S221450952401218XSteel-timber composite connectionShear connectorWelded studShear carrying capacity |
| spellingShingle | Ernian Zhao Qi Song Jing-Ru Yao Xin Zhang Study of shear performance of steel-timber composite connection with different shear connectors Case Studies in Construction Materials Steel-timber composite connection Shear connector Welded stud Shear carrying capacity |
| title | Study of shear performance of steel-timber composite connection with different shear connectors |
| title_full | Study of shear performance of steel-timber composite connection with different shear connectors |
| title_fullStr | Study of shear performance of steel-timber composite connection with different shear connectors |
| title_full_unstemmed | Study of shear performance of steel-timber composite connection with different shear connectors |
| title_short | Study of shear performance of steel-timber composite connection with different shear connectors |
| title_sort | study of shear performance of steel timber composite connection with different shear connectors |
| topic | Steel-timber composite connection Shear connector Welded stud Shear carrying capacity |
| url | http://www.sciencedirect.com/science/article/pii/S221450952401218X |
| work_keys_str_mv | AT ernianzhao studyofshearperformanceofsteeltimbercompositeconnectionwithdifferentshearconnectors AT qisong studyofshearperformanceofsteeltimbercompositeconnectionwithdifferentshearconnectors AT jingruyao studyofshearperformanceofsteeltimbercompositeconnectionwithdifferentshearconnectors AT xinzhang studyofshearperformanceofsteeltimbercompositeconnectionwithdifferentshearconnectors |