Abstract
The self-weight and the induced internal force of a long span space structure are remarkably increased with increasing of its span, thus its spanning capability is limited. This problem can be solved by using carbon fiber reinforced plastics (CFRP) instead of conventional steel in construction of long span space structures. Thus in this paper, the long span space structure is proposed to be constructed fully by CFRP. The dynamic propertyies of CFRP double-layer grids is investigated and compared with steel grids. First, the dynamic propertyies of CFRP grids with various spans) subjected to low-level earthquake are investigated. After that, the dynamic properties of CFRP grids with 100m span subjected to high-level earthquake are also investigated. Finally, the spanning capability of CFRP grids is analyzed and compared with the steel grids which have the same span and the same tube section. The dynamic properties of CFRP grids are compared with that of the steel grids for both low-level earthquake and high-level earthquake cases. The compared results indicate that the mechanical properties and earthquake resistance capacity of CFRP grids are much better than that of the steel grids, and thus the CFRP grids have larger spanning capacity.
| Original language | English |
|---|---|
| Pages (from-to) | 16-24 |
| Number of pages | 9 |
| Journal | World Earthquake Engineering |
| Volume | 25 |
| Issue number | 1 |
| State | Published - Mar 2009 |
| Externally published | Yes |
Keywords
- Carbon fiber reinforced plastic
- Double-layer grids
- Dynamic property
- Spanning capability
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