- 【Updated on May 12, 2025】 Integration of CiNii Dissertations and CiNii Books into CiNii Research
- Trial version of CiNii Research Knowledge Graph Search feature is available on CiNii Labs
- Suspension and deletion of data provided by Nikkei BP
- Regarding the recording of “Research Data” and “Evidence Data”
EVALUATION OF SEISMIC STABILTY OF GRS INTEGRAL BRIDGES AND NRS INTEGRATED BRIDGES BY SHAKING TABLE TESTS
Bibliographic Information
- Other Title
-
- GRS一体橋梁とNRS一体化橋梁の耐震性の振動台実験による検討
- GRS イッタイ キョウリョウ ト NRS イッタイカ キョウリョウ ノ タイシンセイ ノ シンドウダイ ジッケン ニ ヨル ケントウ
Search this article
Description
To alleviate several serious problems with conventional type bridges, geosynthetic-reinforced soil (GRS) integral bridges for new construction and nail-reinforced soil (NRS) integrated bridges to reinforce existing conventional type bridges have been proposed. Model tests showed that the backfill settlement and destabilization by cyclic lateral displacements due to thermal expansion and contraction of the girder integrated to the abutments is restrained by reinforcing the backfill with reinforcement connected to the abutment. The seismic stability of these two new bridge types is very high due to increases in: 1) the initial stiffness; 2) the stiffness maintained during dynamic loading; 3)the damping ratio; and 4) the ultimate dynamic strength against response acceleration. By factors 1) and 2), the approaching speed to the resonance state becomes slower. By factor 3), the response acceleration becomes lower.
Journal
-
- Geosynthetics Engineering Journal
-
Geosynthetics Engineering Journal 27 (0), 141-148, 2012
Japan Chapter of International Geosynthetics Society