高混凝土坝动力模型试验材料特性研究
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摘要
针对模型试验材料的选取为结构动力模型试验中的关键,论述了高混凝土坝动力模型试验理想材料的特性,对仿真混凝土的各种不同配比进行了多组试验,并测试了仿真混凝土立方体抗压强度和单轴拉伸强度。试验结果表明,仿真混凝土材料密度高、强度低、性能稳定,与混凝土有较好的相似性,是一种较理想的高混凝土坝模型试验材料。
The selection of model test material is the key problem of structural dynamic model test.This paper discusses the properties of ideal dynamic model test material.And then many groups of experiments are implemented for various mixture ratio of emulation concrete.Finally,tests on cubical compressive strength and uniaxial tensional strength of emulation concrete are performed.The test results show that the emulation concrete has advantages,such as high density,low-intensity,steady properties,preferable similarity with common concrete.Therefore,emulation concrete is ideal model test material for high concrete dam.
The selection of model test material is the key problem of structural dynamic model test.This paper discusses the properties of ideal dynamic model test material.And then many groups of experiments are implemented for various mixture ratio of emulation concrete.Finally,tests on cubical compressive strength and uniaxial tensional strength of emulation concrete are performed.The test results show that the emulation concrete has advantages,such as high density,low-intensity,steady properties,preferable similarity with common concrete.Therefore,emulation concrete is ideal model test material for high concrete dam.
引文
[1]迟世春,林少书.结构动力模型试验相似理论及其验证[J].世界地震工程,2004,20(4):11-20.
[2]林皋,周晶,胡志强.丰满大坝抗震安全性评价[J].大坝与安全,1999(3):31-35.
[3]朱彤,林皋,马恒春.混凝土仿真材料特性及其应用的试验研究[J].水力发电学报,2004,23(4):31-37.
[4]Zhou J,Zhu T,Jefferson A D,et al.ExperimentalInvestigations into Seismic Failure of High ArchDams[J].Journal of Structural Engineering,2000,126(8):926-935.
[2]林皋,周晶,胡志强.丰满大坝抗震安全性评价[J].大坝与安全,1999(3):31-35.
[3]朱彤,林皋,马恒春.混凝土仿真材料特性及其应用的试验研究[J].水力发电学报,2004,23(4):31-37.
[4]Zhou J,Zhu T,Jefferson A D,et al.ExperimentalInvestigations into Seismic Failure of High ArchDams[J].Journal of Structural Engineering,2000,126(8):926-935.
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