STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES
After a new kind of steel-lumber composite member, named as pre-stress glue-bamboo and lumber beam, was proposed by project team, the bending test was conducted on 12 groups of pre-stress glue-bamboo and lumber beams and 4 groups of ordinary glue-bamboo and lumber beams, and from the ways of failure...
| Main Authors: | , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Czech Technical University, Prague
2017-07-01
|
| Series: | Civil Engineering Journal |
| Subjects: | |
| Online Access: | http://www.civilengineeringjournal.cz/archive/issues/2017/2017_2/2-2017-0012.pdf |
| _version_ | 1797726332455485440 |
|---|---|
| author | Guo Nan Wang Yan-Ju Zuo Hong-Liang |
| author_facet | Guo Nan Wang Yan-Ju Zuo Hong-Liang |
| author_sort | Guo Nan |
| collection | DOAJ |
| description | After a new kind of steel-lumber composite member, named as pre-stress glue-bamboo and lumber beam, was proposed by project team, the bending test was conducted on 12 groups of pre-stress glue-bamboo and lumber beams and 4 groups of ordinary glue-bamboo and lumber beams, and from the ways of failure mode, ultimate load, load-deflection curves and load-strain curves, the influence of pre-stressing tendons number and pre-stress value on glue-bamboo and lumber beams were researched. The result showed that: under the same pre-stress value, with the increase of pre-stressing tendons number, the beam ultimate load and stiffness increased. Under the same pre-stressing tendons number, with the increase of pre-stress value, the beam ultimate load increased, and the stiffness of pre-stressed beams was better than ordinary beams, while the change was small. Compared with ordinary beams, under the same section size, the bearing capacity of pre-stress beams was 1.76~5.66 times of ordinary beams. With the same bearing capacity, pre-stress could save bamboo-lumber composites 13.28%~51.98%, and reduce cost 1.95%~39.61%. Finally, the bearing capacity calculation formula for this kind of member was proposed and verified, which provide a reference for practical engineering. |
| first_indexed | 2024-03-12T10:44:05Z |
| format | Article |
| id | doaj.art-e88b5373217d4d0ebfb3e35af44b3fb5 |
| institution | Directory Open Access Journal |
| issn | 1805-2576 |
| language | English |
| last_indexed | 2024-03-12T10:44:05Z |
| publishDate | 2017-07-01 |
| publisher | Czech Technical University, Prague |
| record_format | Article |
| series | Civil Engineering Journal |
| spelling | doaj.art-e88b5373217d4d0ebfb3e35af44b3fb52023-09-02T07:48:26ZengCzech Technical University, PragueCivil Engineering Journal1805-25762017-07-012017212814210.14311/CEJ.2017.02.0012STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATESGuo Nan0Wang Yan-Ju1Zuo Hong-Liang21. Northeast Forestry University, School of Civil Engineering, Harbin, China, 1500402. Northeast Forestry University, School of Civil Engineering, Harbin, China, 1500402. Northeast Forestry University, School of Civil Engineering, Harbin, China, 150040After a new kind of steel-lumber composite member, named as pre-stress glue-bamboo and lumber beam, was proposed by project team, the bending test was conducted on 12 groups of pre-stress glue-bamboo and lumber beams and 4 groups of ordinary glue-bamboo and lumber beams, and from the ways of failure mode, ultimate load, load-deflection curves and load-strain curves, the influence of pre-stressing tendons number and pre-stress value on glue-bamboo and lumber beams were researched. The result showed that: under the same pre-stress value, with the increase of pre-stressing tendons number, the beam ultimate load and stiffness increased. Under the same pre-stressing tendons number, with the increase of pre-stress value, the beam ultimate load increased, and the stiffness of pre-stressed beams was better than ordinary beams, while the change was small. Compared with ordinary beams, under the same section size, the bearing capacity of pre-stress beams was 1.76~5.66 times of ordinary beams. With the same bearing capacity, pre-stress could save bamboo-lumber composites 13.28%~51.98%, and reduce cost 1.95%~39.61%. Finally, the bearing capacity calculation formula for this kind of member was proposed and verified, which provide a reference for practical engineering.http://www.civilengineeringjournal.cz/archive/issues/2017/2017_2/2-2017-0012.pdfGlue-bamboo and lumber beamsFlexural behaviourBearing capacity calculation formulaPre-stressed |
| spellingShingle | Guo Nan Wang Yan-Ju Zuo Hong-Liang STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES Civil Engineering Journal Glue-bamboo and lumber beams Flexural behaviour Bearing capacity calculation formula Pre-stressed |
| title | STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES |
| title_full | STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES |
| title_fullStr | STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES |
| title_full_unstemmed | STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES |
| title_short | STUDY OF SHORT-TERM FLEXURAL BEHAVIOR FOR GLUE-BAMBOO AND LUMBER BEAMS UNDER DIFFERENT PRE-STRESSED STATES |
| title_sort | study of short term flexural behavior for glue bamboo and lumber beams under different pre stressed states |
| topic | Glue-bamboo and lumber beams Flexural behaviour Bearing capacity calculation formula Pre-stressed |
| url | http://www.civilengineeringjournal.cz/archive/issues/2017/2017_2/2-2017-0012.pdf |
| work_keys_str_mv | AT guonan studyofshorttermflexuralbehaviorforgluebambooandlumberbeamsunderdifferentprestressedstates AT wangyanju studyofshorttermflexuralbehaviorforgluebambooandlumberbeamsunderdifferentprestressedstates AT zuohongliang studyofshorttermflexuralbehaviorforgluebambooandlumberbeamsunderdifferentprestressedstates |