原文传递
SEISMIC STRENGTHENING OF COLUMN-PIER-CAP CONNECTIONS.
| 题名： | SEISMIC STRENGTHENING OF COLUMN-PIER-CAP CONNECTIONS. |
| 作者： | Sanders-DH; Saiidi-MS; Martin-T |
| 关键词： | HIGHWAY-BRIDGES; SCALE-MODELS; MODEL-TESTS; ENERGY-DISSIPATION; COLUMNS-STRUCTURAL; BRIDGE-PIERS; PIER-CAPS; CONNECTIONS-; SEISMIC-DESIGN; RETROFITTING-; RENO-NEVADA; STRENGTHENING-; JOINTS-; STEEL-JACKETS |
| 摘要： | Many bridges constructed in the 1960s in regions of high seismic risk have column-pier-cap connections with inadequate column bar development and no shear reinforcement in the joint region. The study described in this paper focuses on highway bridges built on Interstate 80 in the Reno, Nevada, area during the 1960s. Two 0.4-scale specimens representing the essential features of the column-pier-cap connections in these bridges were constructed and tested. One test showed that the as-built specimen had little energy dissipation capacity and failed at less than 1% drift. A second specimen was used to test a potential strengthening technique. The technique included increasing pier-cap depth, adding a concrete bolster to the joint, and placing a steel jacket around the column. After strengthening, a plastic hinge formed in the column, the joint damage was minimized, and the energy dissipation capacity increased by a factor of 5. |
| 总页数： | Transportation Research Record. 1998. (1624) pp93-100 (1 Phot., 9 Fig., 1 Tab., 8 Ref.) |
| 报告类型： | 科技报告 |
相关文献
- Seismic Performance of Columns with Grouted Couplers in Idaho Accelerated Bridge Construction Applications.
- Experimental Study on the Seismic Design and Retrofit of Bridge Columns Including Axial Load Effects
- Experimental Study on the Seismic Design and Retrofit of Bridge Columns Including Axial Load Effects; Technical rept
- Seismic Performance of Bridge Column-Pile-Shaft Pin Connections for Application in Accelerated Bridge Construction.
- Seismic Performance of Shear-Critical Reinforced Concrete Bridge Piers; Technical rept
- Rapidly Constructible Large-Bar Precast Bridge-Bent Seismic Connection
检索历史
应用推荐
