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该文首先对石灰、粉煤灰、70砂、液态渣等化学成分进行分析,并对一系列不同配比的二灰(石灰、粉煤灰)进行对比实验,从混合料击实曲线、石灰剂量与抗压强度关系曲线及实际使用效果以石灰:粉煤灰为15: 相似文献
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This paper discusses the application of several techniques involved in the development of the 3D finite element (FE) models
of rod and wire continuous rolling process. The FE models are implemented into the FE-program MSC.Marc and used to investigate
the thermal and mechanical behavior of billet during the rolling process. All nonlinear equations included in the models are
solved by the static and dynamic procedures, respectively. Data transfer technique is proposed to keep the continuity of simulation
results. And the computational time of static procedure is significantly reduced by using a rigid pushing body. In all models,
the constant time step method and the auto time step method are respectively used to define time step for the solution of
equations. Simulation results of the models with different time step methods are compared. And comparison between calculated
values and measured ones of the temperature at the surface of billet shows the validity of the FE models. 相似文献
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从整体上介绍了G105国道大石大桥扩建工程的设计与施工情况,重点介绍了(43.75+62.5+43.75)m连续箱梁的设计,其中横断面设计巧妙地解决了在桥面车道不对称的情况下怎样使结构对称的问题,大大方便了施工,可供类似工程参考. 相似文献
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