contributor author | Zhao Xin | |
contributor author | Sha Aimin | |
contributor author | Hong Bin | |
date accessioned | 2017-05-08T22:05:02Z | |
date available | 2017-05-08T22:05:02Z | |
date copyright | December 2008 | |
date issued | 2008 | |
identifier other | jhtrcq%2E0000245.pdf | |
identifier uri | http://yetl.yabesh.ir/yetl/handle/yetl/70806 | |
description abstract | Vaulted expansion of semi-rigid base caused by thermal stress was analyzed with the theory of buckling of columns in mechanics of materials and the theory of buckling of elastic plates in mechanics of elasticity. Whether vaulted expansion of semi-rigid base will happens was judged by comparing the thermal stress and critical stress calculated with the two theories respectively. Several technical parameters which influence the thermal stress were analyzed and suitable values of them in construction were recommended. The result indicates that (1) the calculation results are coincident, however result computed with the theory of buckling of column is prone to be more conservative; (2) in order to avoid the failure caused by vaulted expansion in semi-rigid base, construction in winter should be avoid, and the difference in temperature during construction should he as low as possible; (3) it is improper for contractors to pursue the excessive high elastic module for semi-rigid base by increasing the content proportion of cement; (4) materials with dense structure of skeleton which has low expansion coefficient should he adopted for semi-rigid base. | |
publisher | American Society of Civil Engineers | |
title | Mechanical Analysis of Vaulted Expansion of Semi-rigid Base | |
type | Journal Paper | |
journal volume | 3 | |
journal issue | 2 | |
journal title | Journal of Highway and Transportation Research and Development (English Edition) | |
identifier doi | 10.1061/JHTRCQ.0000245 | |
tree | Journal of Highway and Transportation Research and Development (English Edition):;2008:;Volume ( 003 ):;issue: 002 | |
contenttype | Fulltext | |