Abstract
An important concern in the design of structures is the load of the earthquake. Two aspects related with pulse-like ground motions are discussed and summarized in this study, which are the constant ductility response spectrum and yield strength reduction factor. The earthquake source mechanism, rupture direction relative to the site, and slip direction of fault rupture plane, which influence near-field ground motions, cause the directivity effect and fling step effect. The two effects will give rise to the two-directional and one-directional pulse-type ground motions, respectively. Comparing with far-field ground motions indicates that the ratio of inelastic displacement to elastic displacement for pulse-type ground motions is larger, and the yield strength reduction factor is smaller. Unconservative results may be obtained in the design of structures without considering these characteristics of pulse-type ground motions.
| Original language | English |
|---|---|
| Pages (from-to) | 583-586 |
| Number of pages | 4 |
| Journal | Jianzhu Jiegou Xuebao/Journal of Building Structures |
| Volume | 27 |
| Issue number | SUPPL. |
| State | Published - Oct 2006 |
| Externally published | Yes |
Keywords
- Design of structures
- Near-field
- Pulse
- Ratio of inelastic displacement to elastic displacement
- Yield strength reduction factor
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