施工环境对钢筋计参数及桩基试验结果的影响研究
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摘要
为了研究施工环境对钢筋计参数及桩基试验结果的影响,通过理论分析与现场堆载试验相结合的方法,根据力学平衡条件现场重新标定钢筋计,并得出了钢筋计修正系数K值的计算公式.纠正了钢筋计测试的计算误区,从而准确地计算出桩身不同深度处各截面的轴力.研究结果为试验数据的准确性提供了可靠的保障,为钢筋计在桥梁桩基受力分析研究提供了标定方法.
In order to study the influence of construction environment on the parameters of steel bars and the results of pile foundation test,through the combination of theoretical analysis and field loading test,according to the mechanical balance conditions on-site re-calibration of steel,the formula of calculating the K value of the correction coefficient of the steel bar is obtained. the calculation errors of the steel bar test is Corrected,which helps to accurately calculate the axial force of the pile at different depths of the cross section. The results of this study provide a reliable guarantee for the accuracy of the test data,and provide a calibration method for the reinforcement analysis of the bridge pile.
In order to study the influence of construction environment on the parameters of steel bars and the results of pile foundation test,through the combination of theoretical analysis and field loading test,according to the mechanical balance conditions on-site re-calibration of steel,the formula of calculating the K value of the correction coefficient of the steel bar is obtained. the calculation errors of the steel bar test is Corrected,which helps to accurately calculate the axial force of the pile at different depths of the cross section. The results of this study provide a reliable guarantee for the accuracy of the test data,and provide a calibration method for the reinforcement analysis of the bridge pile.
引文
[1]李连虎,刘京平,孙进忠,等.用荷载试验及钢筋计测试联合确定一定深度上的桩基承载力[J].现代地质,2003,17(1):110-114.
[2]倪晓荣,潘建伟,郭金武.预埋钢筋计在桩基内力检测中的应用[J].施工技术,2014,43(6):15-17.
[3]吴跃东,罗如平,訾洪利,等.振弦式钢筋计在预应力管桩成桩过程中的安装工艺研究[J].施工技术,2015,44(13):19-22.
[4]高鹏,田稳苓,卿龙邦.钢筋计在研究混凝土板受力状态中的应用[J].施工技术,2014(43):358-360.
[5]李楠.钢筋计在大坝检测中的应用[J].试验技术与管理,2003,20(1):10-12.
[6]张忠举,谢红兰,杨庆,等.嘉陵江金溪航电枢纽大坝钢筋计监测资料分析[J].水利科技与经济,2016,22(11):59-62.
[7]田宇,旁巍.钢筋计在大型水工结构中对钢筋和混凝土应力的检测研究[C]//第十四届全国现代结构工程学术研讨会.北京:工业建筑,2014:1375-1378.
[8]李峰.钢筋应力计在桩身轴力测试中的计算方法[J].浙江水利水电学院学报,2015,27(2):62-65.
[9]李玲玲,王立忠,邢月龙.大直径桩孔灌注桩负摩阻力试验研究[J].岩石力学与工程学报,2009,28(3):583-590.
[10]DL/T 1136—2009[S].北京:中国电力出版社,2009.
[2]倪晓荣,潘建伟,郭金武.预埋钢筋计在桩基内力检测中的应用[J].施工技术,2014,43(6):15-17.
[3]吴跃东,罗如平,訾洪利,等.振弦式钢筋计在预应力管桩成桩过程中的安装工艺研究[J].施工技术,2015,44(13):19-22.
[4]高鹏,田稳苓,卿龙邦.钢筋计在研究混凝土板受力状态中的应用[J].施工技术,2014(43):358-360.
[5]李楠.钢筋计在大坝检测中的应用[J].试验技术与管理,2003,20(1):10-12.
[6]张忠举,谢红兰,杨庆,等.嘉陵江金溪航电枢纽大坝钢筋计监测资料分析[J].水利科技与经济,2016,22(11):59-62.
[7]田宇,旁巍.钢筋计在大型水工结构中对钢筋和混凝土应力的检测研究[C]//第十四届全国现代结构工程学术研讨会.北京:工业建筑,2014:1375-1378.
[8]李峰.钢筋应力计在桩身轴力测试中的计算方法[J].浙江水利水电学院学报,2015,27(2):62-65.
[9]李玲玲,王立忠,邢月龙.大直径桩孔灌注桩负摩阻力试验研究[J].岩石力学与工程学报,2009,28(3):583-590.
[10]DL/T 1136—2009[S].北京:中国电力出版社,2009.