冰凌灾害研究的一个重要课题——冰荷载计算分析与研究
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摘要
冰对构造物的破坏,越来越引起人们的关注。如何确定作用于结构上的冰荷载,已成为工程设计中必须考虑的安全因素,规范法、公式法是冰荷载常用的计算方法。对国内外有关冰荷载计算公式的优缺点进行了分析与评价,提出对于D/h≤6的窄结构,使用多系数公式计算冰荷载是比较合理的,而前苏联规范比较适合宽尺度直立结构物的冰荷载计算;通过实验验证分析认为,在我国,按照规范进行计算,还是比较符合实际的。
The structure damage which caused by the ice has increasingly drawn people's attention and how to determine the ice load which acts on the structures has become the first considered safe factor in the engineering design.The methods of using norms and formulas are the common calculation methods.In this paper,the merits and demerits about the calculation methods of ice load at home and abroad were analyzed and evaluated,it deems that to the narrow structure of D/h≤6,using multi-factor formula to calculate the ice load is more reasonable,the Soviet Union norms more adapt to the ice load calculation problems of wide-scale vertical structures.Through the experimental verification and analysis,we find that the calculation which is in accordance with norms is quite in line with the reality.
The structure damage which caused by the ice has increasingly drawn people's attention and how to determine the ice load which acts on the structures has become the first considered safe factor in the engineering design.The methods of using norms and formulas are the common calculation methods.In this paper,the merits and demerits about the calculation methods of ice load at home and abroad were analyzed and evaluated,it deems that to the narrow structure of D/h≤6,using multi-factor formula to calculate the ice load is more reasonable,the Soviet Union norms more adapt to the ice load calculation problems of wide-scale vertical structures.Through the experimental verification and analysis,we find that the calculation which is in accordance with norms is quite in line with the reality.
引文
[1]张丽敏.冰对码头水工结构作用力的物理模型试验研究[D].大连:大连理工大学,2006.
[2]蔡之瑞,等.冰荷载的试验研究和计算方法[J].地震工程与工程振动,1997,17(4):49-56.
[3]Takahiro T,Bekker.Ice Load Equation by Medium Scale Field Indentation Test Data[C]//Proceedings of the Eleventh International Offshore andPolar Engineering Conference,2001.
[4]Kato K.Design ice force estimating system[C]//Proceedings of the Second International Offshore and Polar Engineering Conference,1992.
[5]Sasajima T.Impact of Ice Loads on Pile Structures[C]//Proceedings of the Sixth International Offshore and Polar Engineering Conference,1996.
[6]Takashi Terashima,Effects of Cross-Sectional Shape on Vertical Ice Load Actings on Pile Structures[C]//Proceedings of the Eighth InternationalOffshore and Polar Engineering Conference,1998.
[7]王义安,宋安,史庆增.作用于结构物上冰荷载理论公式的评价与比较[R].天津:天津大学,2004.
[8]刘加海,杨名玖,刘心岩.松花江依兰航电枢纽冰荷载计算方法研究[R].北京:水利发展杂志社,2006.
[9]港口工程荷载规范[S].(JTJ 215-98).
[10]史庆增,宋安.海冰荷载和冰激振动研究报告[R].天津:天津大学,2000.
[2]蔡之瑞,等.冰荷载的试验研究和计算方法[J].地震工程与工程振动,1997,17(4):49-56.
[3]Takahiro T,Bekker.Ice Load Equation by Medium Scale Field Indentation Test Data[C]//Proceedings of the Eleventh International Offshore andPolar Engineering Conference,2001.
[4]Kato K.Design ice force estimating system[C]//Proceedings of the Second International Offshore and Polar Engineering Conference,1992.
[5]Sasajima T.Impact of Ice Loads on Pile Structures[C]//Proceedings of the Sixth International Offshore and Polar Engineering Conference,1996.
[6]Takashi Terashima,Effects of Cross-Sectional Shape on Vertical Ice Load Actings on Pile Structures[C]//Proceedings of the Eighth InternationalOffshore and Polar Engineering Conference,1998.
[7]王义安,宋安,史庆增.作用于结构物上冰荷载理论公式的评价与比较[R].天津:天津大学,2004.
[8]刘加海,杨名玖,刘心岩.松花江依兰航电枢纽冰荷载计算方法研究[R].北京:水利发展杂志社,2006.
[9]港口工程荷载规范[S].(JTJ 215-98).
[10]史庆增,宋安.海冰荷载和冰激振动研究报告[R].天津:天津大学,2000.
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