Hits:

Date of Publication:2008-01-01

Journal:水利学报

Affiliation of Author(s):建设工程学部

Issue:7

Page Number:848-853,862

ISSN No.:0559-9350

Abstract:Based on the assumption that concrete is macroscopic homogeneous the cracking evolution process and damage mode of high arch dams are studied in consideration of the heterogeneity of concrete in meso-scale. The bilinear damage evolution model and damage evolution model expressed in power function with descending section are adopted to combine with Mohr-Coulomb criterion to investigate the crack development and fracture mode of high arch dam under the action of earthquake. The analysis result of a high arch dam in China under design shows that cracks taken place in concrete are caused by excessive tensile stress. The cracks initiate at the middle of dam top and distribute at the upper half of the dam with the rest part remained intact. This conclusion agrees with the model test result.

Note:新增回溯数据