钢筋桁架混凝土叠合板变形理论研究及试验分析
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摘要
基于钢筋桁架混凝土叠合板挠度尚无有效计算方法的实际情况下,对实际工程中两块钢筋桁架混凝土叠合板进行静载试验,分析挠度变化的规律,并探索在弹性理论条件下钢筋桁架混凝土叠合板挠度的计算方法。结果表明:在弹性理论下钢筋桁架混凝土叠合板挠度计算理论值与试验测得的数据吻合较好,实际工程中的钢筋桁架混凝土叠合板满足安全使用要求,可在工程中广泛的应用。
In view of the fact that there is no effective method for calculating the deflection of reinforced truss concrete composite slabs, static load tests on two steel bar trusses concrete superimposed slabs in practical engineering were carried out, the law of deflection variation was analyzed, and the calculation method of the deflection of steel bar trusses concrete superimposed slabs under the condition of elastic theory was explored. The results show that the theoretical calculation of the deflection of steel bar trusses concrete superimposed slabs under the elastic theory agrees well with the experimental data. The steel bar trusses concrete superimposed slabs in the actual project meet the requirements of safe use and can be widely used in engineering.
In view of the fact that there is no effective method for calculating the deflection of reinforced truss concrete composite slabs, static load tests on two steel bar trusses concrete superimposed slabs in practical engineering were carried out, the law of deflection variation was analyzed, and the calculation method of the deflection of steel bar trusses concrete superimposed slabs under the condition of elastic theory was explored. The results show that the theoretical calculation of the deflection of steel bar trusses concrete superimposed slabs under the elastic theory agrees well with the experimental data. The steel bar trusses concrete superimposed slabs in the actual project meet the requirements of safe use and can be widely used in engineering.
引文
[1]马祥林.桁架钢筋混凝土叠合板的受力性能研究[D].南京:东南大学, 2017.
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[2]张翔,沈小璞.刚度较弱的叠合式双向楼板内力与挠度研究[J].建筑结构, 2016, 46(22):99-104.
[3]建筑结构荷载规范:GB50009—2012[S].北京:中国建筑工业出版社, 2012.
[4]混凝土结构试验方法标准:GB/T50152—2012[S].北京:中国建筑工业出版社, 2012.
[5]徐之纶.弹性力学(上?下册)[M].2版.北京:人民教育出版社, 1982.
[6]杨耀乾.平板理论[M].2版.北京:中国铁道出版社,1984.
[7]孙训方,方孝淑,关来泰,等.材料力学[M].北京:高等教育出版社, 2009:373.
[8]黄新宇,姚志东.分离式预制楼梯结构性能试验研究[J].施工技术, 2018, 47(增刊):161-163.
[9]混凝土结构设计规范:GB50010—2015[S].2015年版.北京:中国建筑工业出版社, 2015.