详情

原文传递 FULL-SCALE FIELD TESTS ON LONGITUDINAL UPLIFT RESPONSE OF CORRUGATED METAL PIPE.

题名：	FULL-SCALE FIELD TESTS ON LONGITUDINAL UPLIFT RESPONSE OF CORRUGATED METAL PIPE.
作者：	Kjartanson-BH; Lohnes-RA; Klaiber-FW
关键词：	BACKFILL-SOILS; CORRUGATED-METAL-CULVERTS; CORRUGATED-PIPE-CULVERTS; CULVERT-INLETS; DESIGN-; FIELD-TESTS; FINITE-ELEMENT-METHOD; FORESLOPE-; HYDRAULIC-LOADING; SOIL-STRUCTURE-INTERACTION; TIEDOWNS-; UPLIFT-PRESSURE
摘要：	In response to problems with corrugated metal pipe (CMP) culvert uplift failures caused by unbalanced inlet hydraulic loading, full-scale field testing and numerical analysis were undertaken to develop a rational design methodology for CMP inlet tiedowns. Four uplift tests performed on a 2.44-m-diameter CMP under different backfill cover, foreslope, and restraint conditions are described. The objectives of the tests were to gain insight into the soil-structure interaction processes and to provide data for verification of the performance of the finite-element model used to calculate the required restraint forces. The test results indicate that the backfill foreslope has a significant effect on uplift response. For example, the force required to lift the CMP inlet 25 mm was about 50% greater with 0.6 m of backfill cover and a full 2:1 foreslope than with 0.6 m of backfill cover and approximately 4 m of the CMP exposed beyond the toe of the backfill foreslope. These results indicated that appropriate modeling of the soil-structure interaction and interface behavior in the foreslope region is extremely important.
总页数：	Transportation Research Record. 1999. (1656) pp80-87 (2 Phot., 11 Fig., 1 Tab., 10 Ref.)
报告类型：	科技报告