摘要
层状弹性体系力学是多层柔性路面设计与计算的理论基础。BISAR程序是世界著名的多层弹性体系力学计算程序。本文在国内首次通过力学计算公式的推导和数值计算论证了BISAR源程序中一处明显的错误。由于该错误的存在,导致当采用BISAR程序计算在圆形均布单向水平载荷作用下的层状弹性体系时,层状弹性体系表面位于载荷圆范围内的计算点的τ_(θz1)或τ_(zr1)的计算结果均是错误的,在BISAR程序50年的历史中,从未见此发现。上述研究工作为BISAR源程序的进一步修改与完善提供了宝贵的资料。
The mechanics of layered elastic systems is the theoretical basis for the design and calculation of multi-layer flexible pavement.The BISAR program is a world-renowned mechanical calculation program for multilayered elastic systems.For the first time at home and abroad,an obvious error in the BISAR source program has been demonstrated through the derivation of mechanical calculation formulas and numerical calculations.Due to the existence of this error,when using the BISAR program to calculate a layered elastic system under the action of unidirectional horizontal load uniformly distributed on a circular area,the calculation results of τ_(θz1) and τ_(zr1) of points located within the range of the load circle on the surface of the layered elastic system are both incorrect.In the 50 year history of the BISAR program,this is an unprecedented discovery.The above research work provides valuable information for further modification and improvement of BISAR source programs.
作者
王凯
WANG Kai(School of Transportation,Southeast University,Nanjing 210096,China)
出处
《力学与实践》
2025年第1期189-194,共6页
Mechanics in Engineering
关键词
层状弹性体系力学
最新研究进展
BISAR程序
数值计算
mechanics of layered elastic systems
latest research progress
BISAR program
numerical calculation
