Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Swivel bridge weighing method based on pile foundation stress measurement
The invention relates to the technical field of swivel bridge construction, in particular to a swivel bridge weighing method based on pile foundation stress measurement. The swivel bridge weighing method comprises the following steps that when bored pile reinforcement cages are manufactured, steel bar stress meters are installed on steel bars of the reinforcement cages; after holes are formed in pile foundations, the steel bar stress meters are placed in the holes together with the reinforcement cages and stress leads are reserved, the two sides of the stress leads are respectively connected to the steel bar stress meters and a stress acquisition instrument, and one side of the stress acquisition instrument is further connected with a compensation stress meter; after the concrete pouring of the pile foundations, a bearing platform and a pier body is finished, the stress acquisition instrument is used for preliminary reading, and the initial reading number of the pile foundation steel bar stress is read; after the construction of the upper structure is finished, reading is carried out again, and the rereading number of the stress of the steel bars of the pile foundations is read; and the difference between the initial reading number and the rereading number is multiplied by the pile foundation area to obtain the pile foundation axial force, and the moment taking is carried out on the rotating center through axial force of each steel bar, so that the unbalanced bending moment is obtained to carry out the back calculation of the unbalanced weight of the upper structure. The swivel bridge weighing method is simple in principle and does not require significant equipment operation.
本发明涉及转体桥梁施工的技术领域，尤其是一种基于桩基应力测量的转体桥梁称重方法，方法包括以下步骤：钻孔桩钢筋笼制作时，在钢筋笼的钢筋上安装钢筋应力计；桩基成孔后，钢筋应力计随钢筋笼一并放入孔中并预留出应力导线，应力导线的两侧分别连接于钢筋应力计和应力采集仪，应力采集仪的一侧还连接有补偿应力计；桩基、承台以及墩身混凝土浇筑完成后，采用应力采集仪进行初步读数，读取桩基钢筋应力初读数；待上部结构施工完成后，再次读数，读取桩基钢筋应力再读数；两次应力读数差值乘以桩基础面积求的桩基础轴力，通过每根钢筋的轴力对转动中心取距，求得不平衡弯矩，从而反算上部结构不平衡重量。本发明的原理简单，无需重大设备操作。
Swivel bridge weighing method based on pile foundation stress measurement
The invention relates to the technical field of swivel bridge construction, in particular to a swivel bridge weighing method based on pile foundation stress measurement. The swivel bridge weighing method comprises the following steps that when bored pile reinforcement cages are manufactured, steel bar stress meters are installed on steel bars of the reinforcement cages; after holes are formed in pile foundations, the steel bar stress meters are placed in the holes together with the reinforcement cages and stress leads are reserved, the two sides of the stress leads are respectively connected to the steel bar stress meters and a stress acquisition instrument, and one side of the stress acquisition instrument is further connected with a compensation stress meter; after the concrete pouring of the pile foundations, a bearing platform and a pier body is finished, the stress acquisition instrument is used for preliminary reading, and the initial reading number of the pile foundation steel bar stress is read; after the construction of the upper structure is finished, reading is carried out again, and the rereading number of the stress of the steel bars of the pile foundations is read; and the difference between the initial reading number and the rereading number is multiplied by the pile foundation area to obtain the pile foundation axial force, and the moment taking is carried out on the rotating center through axial force of each steel bar, so that the unbalanced bending moment is obtained to carry out the back calculation of the unbalanced weight of the upper structure. The swivel bridge weighing method is simple in principle and does not require significant equipment operation.
本发明涉及转体桥梁施工的技术领域，尤其是一种基于桩基应力测量的转体桥梁称重方法，方法包括以下步骤：钻孔桩钢筋笼制作时，在钢筋笼的钢筋上安装钢筋应力计；桩基成孔后，钢筋应力计随钢筋笼一并放入孔中并预留出应力导线，应力导线的两侧分别连接于钢筋应力计和应力采集仪，应力采集仪的一侧还连接有补偿应力计；桩基、承台以及墩身混凝土浇筑完成后，采用应力采集仪进行初步读数，读取桩基钢筋应力初读数；待上部结构施工完成后，再次读数，读取桩基钢筋应力再读数；两次应力读数差值乘以桩基础面积求的桩基础轴力，通过每根钢筋的轴力对转动中心取距，求得不平衡弯矩，从而反算上部结构不平衡重量。本发明的原理简单，无需重大设备操作。
Swivel bridge weighing method based on pile foundation stress measurement
一种基于桩基应力测量的转体桥梁称重方法
CHEN JINGWEI (Autor:in) / WANG FAWU (Autor:in) / CHEN HUAIZHI (Autor:in) / CHEN JIE (Autor:in) / ZHANG KUI (Autor:in)
28.08.2020
Patent
Elektronische Ressource
Chinesisch
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