A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Swivel counterweight method for continuous beam of extra-large bridge
The invention relates to the technical field of bridge construction, and particularly discloses a rotating counterweight method for a continuous beam of an extra-large bridge. According to the concrete pouring record, the theoretical value of the concrete unbalance weight is calculated, and pre-counterweight is carried out; dismantling and monitoring a first displacement change curve of dismantling the temporary support; a pressure sensor is arranged on the jack, and second displacement sensors are arranged on the periphery of the bottom of the upper rotating disc; the multiple jacks conduct slow and constant-speed jacking at the same time till the beam body rotates; recording a second displacement change curve and a jack change curve; recording a third displacement change curve in the unloading process of the jack until the state of the beam body is stable; adjusting the position of the jack to carry out a jacking test on the other direction of the bridge body, and finally completing transverse and longitudinal weighing tests; and determining the total weight of the balancing weight, the placing position of the balancing weight and the eccentric distance. The objective of the invention is to solve the problem that an existing bridge rotation counterweight method needs repeated experiments in the weighing process.
本申请涉及桥梁施工技术领域，具体公开了一种特大桥连续梁转体配重方法，包括以下步骤；根据混凝土浇注记录，计算出混凝土不平衡重量的理论值并进行预配重；拆除并监测临时支撑拆除的第一位移变化曲线；在千斤顶上设置压力传感器，并在上转盘底四周分别布置第二位移传感器；多个千斤顶同时进行缓慢匀速顶升，直到梁体发生转动为止；记录第二位移变化曲线和千斤顶变化曲线；记录千斤顶卸载过程中的第三位移变化曲线，直到梁体状态稳定为止；调整千斤顶位置对桥体另一方向进行顶升测试，最终完成横向与纵向的称重试验；确定配重块总重量、配重块摆放位置及偏心距。本专利的目的在于解决现有桥梁转体配重方法需要在称重过程反复多次实验的问题。
Swivel counterweight method for continuous beam of extra-large bridge
The invention relates to the technical field of bridge construction, and particularly discloses a rotating counterweight method for a continuous beam of an extra-large bridge. According to the concrete pouring record, the theoretical value of the concrete unbalance weight is calculated, and pre-counterweight is carried out; dismantling and monitoring a first displacement change curve of dismantling the temporary support; a pressure sensor is arranged on the jack, and second displacement sensors are arranged on the periphery of the bottom of the upper rotating disc; the multiple jacks conduct slow and constant-speed jacking at the same time till the beam body rotates; recording a second displacement change curve and a jack change curve; recording a third displacement change curve in the unloading process of the jack until the state of the beam body is stable; adjusting the position of the jack to carry out a jacking test on the other direction of the bridge body, and finally completing transverse and longitudinal weighing tests; and determining the total weight of the balancing weight, the placing position of the balancing weight and the eccentric distance. The objective of the invention is to solve the problem that an existing bridge rotation counterweight method needs repeated experiments in the weighing process.
本申请涉及桥梁施工技术领域，具体公开了一种特大桥连续梁转体配重方法，包括以下步骤；根据混凝土浇注记录，计算出混凝土不平衡重量的理论值并进行预配重；拆除并监测临时支撑拆除的第一位移变化曲线；在千斤顶上设置压力传感器，并在上转盘底四周分别布置第二位移传感器；多个千斤顶同时进行缓慢匀速顶升，直到梁体发生转动为止；记录第二位移变化曲线和千斤顶变化曲线；记录千斤顶卸载过程中的第三位移变化曲线，直到梁体状态稳定为止；调整千斤顶位置对桥体另一方向进行顶升测试，最终完成横向与纵向的称重试验；确定配重块总重量、配重块摆放位置及偏心距。本专利的目的在于解决现有桥梁转体配重方法需要在称重过程反复多次实验的问题。
Swivel counterweight method for continuous beam of extra-large bridge
特大桥连续梁转体配重方法
SU QIHUI (author) / CAO HUOYONG (author) / CHEN LONG (author) / LI CHAO (author) / MA WENRONG (author) / TANG JIANHE (author) / LI LIANFANG (author) / YANG LICHUAN (author) / ZHANG QIANG (author) / CHEN NANBING (author)
2024-11-08
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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