Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab
The large-span floor system being lightweight with low frequency and low damping is prone to suffer severe vibration under human excitations. In this research, the vibration performance of an innovative large-span U-shaped steel-concrete composite hollow waffle (CHW) slab was studied based on field...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-01-01
|
| Series: | Shock and Vibration |
| Online Access: | http://dx.doi.org/10.1155/2020/1928075 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1832547056737058816 |
|---|---|
| author | Xi Zhang Qiming Wang Yousan Wang Qing Li |
| author_facet | Xi Zhang Qiming Wang Yousan Wang Qing Li |
| author_sort | Xi Zhang |
| collection | DOAJ |
| description | The large-span floor system being lightweight with low frequency and low damping is prone to suffer severe vibration under human excitations. In this research, the vibration performance of an innovative large-span U-shaped steel-concrete composite hollow waffle (CHW) slab was studied based on field testing and theoretical analysis. First, the modal properties of CHW slab including mode shapes, frequencies, and damping ratio were captured by on-site tests and validated by the finite element method, indicating the CHW slab is a low-frequency floor system with a low damping ratio. Second, the vibration responses of CHW slab under heel-drop and jumping excitations were studied considering the impacts of spatial position, tester number, and activity types. Third, the CHW slab shows excellent vibration serviceability proved by the frequency, accelerations, and human perceptions threshold with the current codes. Meanwhile, the paper gives appropriate threshold values for the CHW slab under impulsive excitation. Finally, the natural frequency formula for the CHW slab derived by the Rayleigh–Ritz energy method agrees well with the measurements. |
| format | Article |
| id | doaj-art-03de6994b0844f44afd73f053e08e79b |
| institution | Kabale University |
| issn | 1070-9622 1875-9203 |
| language | English |
| publishDate | 2020-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Shock and Vibration |
| spelling | doaj-art-03de6994b0844f44afd73f053e08e79b2025-02-03T06:46:00ZengWileyShock and Vibration1070-96221875-92032020-01-01202010.1155/2020/19280751928075Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle SlabXi Zhang0Qiming Wang1Yousan Wang2Qing Li3School of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, ChinaChina Aerospace Construction Group Co, Ltd., Beijing 100071, ChinaState Forestry Planning and Design Institute of Forest Products Industry, Beijing 100009, ChinaSchool of Mechanics and Civil Engineering, China University of Mining and Technology, Beijing 100083, ChinaThe large-span floor system being lightweight with low frequency and low damping is prone to suffer severe vibration under human excitations. In this research, the vibration performance of an innovative large-span U-shaped steel-concrete composite hollow waffle (CHW) slab was studied based on field testing and theoretical analysis. First, the modal properties of CHW slab including mode shapes, frequencies, and damping ratio were captured by on-site tests and validated by the finite element method, indicating the CHW slab is a low-frequency floor system with a low damping ratio. Second, the vibration responses of CHW slab under heel-drop and jumping excitations were studied considering the impacts of spatial position, tester number, and activity types. Third, the CHW slab shows excellent vibration serviceability proved by the frequency, accelerations, and human perceptions threshold with the current codes. Meanwhile, the paper gives appropriate threshold values for the CHW slab under impulsive excitation. Finally, the natural frequency formula for the CHW slab derived by the Rayleigh–Ritz energy method agrees well with the measurements.http://dx.doi.org/10.1155/2020/1928075 |
| spellingShingle | Xi Zhang Qiming Wang Yousan Wang Qing Li Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab Shock and Vibration |
| title | Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab |
| title_full | Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab |
| title_fullStr | Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab |
| title_full_unstemmed | Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab |
| title_short | Experimental and Analytical Study on the Vibration Performance of U-Shaped Steel-Concrete Composite Hollow Waffle Slab |
| title_sort | experimental and analytical study on the vibration performance of u shaped steel concrete composite hollow waffle slab |
| url | http://dx.doi.org/10.1155/2020/1928075 |
| work_keys_str_mv | AT xizhang experimentalandanalyticalstudyonthevibrationperformanceofushapedsteelconcretecompositehollowwaffleslab AT qimingwang experimentalandanalyticalstudyonthevibrationperformanceofushapedsteelconcretecompositehollowwaffleslab AT yousanwang experimentalandanalyticalstudyonthevibrationperformanceofushapedsteelconcretecompositehollowwaffleslab AT qingli experimentalandanalyticalstudyonthevibrationperformanceofushapedsteelconcretecompositehollowwaffleslab |