SENSITIVITY TO IMPACT OF ROAD BRIDGES CARRYING MOVING HEAVY TRAFFIC
| 项目名称： | SENSITIVITY TO IMPACT OF ROAD BRIDGES CARRYING MOVING HEAVY TRAFFIC |
| 摘要： | THE AIM IS TO MAKE A REALISTIC ASSESSMENT OF THE DYNAMIC BEHAVIOUR OF A PRESTRESSED CONCRETE ROAD BRIDGE CARRYING HEAVY TRAFFIC. THE PROCEDURE IS TO MEASURE THE REACTIONS OF A TEST BRIDGE TO HEAVY VEHICLES PASSING OVER IT. THE NATURAL VIBRATIONS OF THE BRIDGE IN THE LONGITUDINAL DIRECTION ARE DETERMINED BY MEANS OF A SERVO-HYDRAULIC VIBRATION EXCITER. CONSTANTS: BRIDGE DYNAMICS. VARIABLE PARAMETERS: VEHICLE DYNAMICS (FREQUENCY OF PASSING), SPEED, VEHICLE TYPE (2, 3, 4 AND 5 AXLE SINGLE VEHICLES AND VEHICLES PULLING TRAILERS), ROAD SURFACE (3 EXPERIMENTAL SURFACINGS WITH VARYING ROUGHNESS), AND NUMBER OF VEHICLES SIMULTANEOUSLY ON THE BRIDGE. RESULTS: A DYNAMIC MODEL WHICH REPRESENTS THE PROCESS OF A HEAVY VEHICLE TRAVELLING OVER A BRIDGE AS A FUNCTION OF THE DETERMINATIVE PARAMETERS. |
| 状态： | Active |
| 资助组织： | EIDG. DEPARTEMENT DES INNERN (FEDERAL DEPARTMENT OF THE INTERIOR) |
| 项目负责人： | HIRT, M A；CANTIENI, R P；LADNER, M |
| 执行机构： | INST DE LA CONSTRUCTION METALLIQUE DE L'EPF-L - INST FOR STEEL STRUCTURES, EPF-L<==>EIDG. MATERIALPRUEFUNGS- U. VERSUCHSANSTALT (EMPA) (FEDERAL INSTITUTE FOR TESTING OF MATERIALS AND RESEARCH) |
| 开始时间： | 19770000 |
| 预计完成日期： | 19810000 |
| 主题领域： | Bridges and other structures；Motor Carriers；I24: Design of Bridges and Retaining Walls |
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