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A platform for research: civil engineering, architecture and urbanism
Bidirectional longitudinal slope vertical curve bridge pushing beam body rotation self-adaptive control method
The invention discloses a bidirectional longitudinal slope vertical curve bridge pushing beam body rotation self-adaptive control method, which comprises the following steps: fitting a main beam intoa circular curve with the same radius in a bridge bottom supporting line shape; lifting the main beam to enable the minimum height difference between the beam bottom line shape and the fitting circlecurve to be greater than 0; adjusting the height of the pier top of each pushing buttress to enable the pier top elevation to be located on the fitting circle curve; setting the slide slope at the corresponding position of each buttress according to the tangent slope of the fitting circle curve, so that the beam body is always supported on the fitting circle curve in a gapless mode by actively adjusting the height of the movable cushion block between the beam bottom and the pier top support, and therefore the beam body rotates in a self-adaptive mode according to the fitting circle curve. According to the method, the pushing construction of the main beam of the bidirectional longitudinal slope complex vertical curve bridge is converted into the construction that the main beam rotates around the fixed circle center, the rotation of the beam is dispersed into each pushing process to form a self-adaptive process; the control method is simple and clear, and the workload of adjusting the height of a single buttress cushion block is reduced.
本发明公开了双向纵坡竖曲线桥梁顶推梁体转动自适应控制方法，所述方法包括以下步骤：将主梁成桥梁底支撑线形拟合为同一半径的圆曲线；抬高主梁，使梁底线形与拟合圆曲线最小高差大于0；调整各个顶推支墩墩顶的高度使墩顶高程位于拟合圆曲线上；在各支墩对应位置处按拟合圆曲线的切线坡度设置滑道坡度，通过主动调整梁底与墩顶支撑间活动垫块的高度，使梁体始终无间隙支撑于拟合圆曲线上，使梁体按照拟合圆曲线自适应转动。本发明将双向纵坡复杂竖曲线桥梁主梁顶推施工转化为主梁以固定圆心转动的施工，将梁的转动分散到每一步顶推过程中，成为一个自适应的过程，控制方法简单明了，减少了单个支墩垫块高度调整的工作量。
Bidirectional longitudinal slope vertical curve bridge pushing beam body rotation self-adaptive control method
The invention discloses a bidirectional longitudinal slope vertical curve bridge pushing beam body rotation self-adaptive control method, which comprises the following steps: fitting a main beam intoa circular curve with the same radius in a bridge bottom supporting line shape; lifting the main beam to enable the minimum height difference between the beam bottom line shape and the fitting circlecurve to be greater than 0; adjusting the height of the pier top of each pushing buttress to enable the pier top elevation to be located on the fitting circle curve; setting the slide slope at the corresponding position of each buttress according to the tangent slope of the fitting circle curve, so that the beam body is always supported on the fitting circle curve in a gapless mode by actively adjusting the height of the movable cushion block between the beam bottom and the pier top support, and therefore the beam body rotates in a self-adaptive mode according to the fitting circle curve. According to the method, the pushing construction of the main beam of the bidirectional longitudinal slope complex vertical curve bridge is converted into the construction that the main beam rotates around the fixed circle center, the rotation of the beam is dispersed into each pushing process to form a self-adaptive process; the control method is simple and clear, and the workload of adjusting the height of a single buttress cushion block is reduced.
本发明公开了双向纵坡竖曲线桥梁顶推梁体转动自适应控制方法，所述方法包括以下步骤：将主梁成桥梁底支撑线形拟合为同一半径的圆曲线；抬高主梁，使梁底线形与拟合圆曲线最小高差大于0；调整各个顶推支墩墩顶的高度使墩顶高程位于拟合圆曲线上；在各支墩对应位置处按拟合圆曲线的切线坡度设置滑道坡度，通过主动调整梁底与墩顶支撑间活动垫块的高度，使梁体始终无间隙支撑于拟合圆曲线上，使梁体按照拟合圆曲线自适应转动。本发明将双向纵坡复杂竖曲线桥梁主梁顶推施工转化为主梁以固定圆心转动的施工，将梁的转动分散到每一步顶推过程中，成为一个自适应的过程，控制方法简单明了，减少了单个支墩垫块高度调整的工作量。
Bidirectional longitudinal slope vertical curve bridge pushing beam body rotation self-adaptive control method
双向纵坡竖曲线桥梁顶推梁体转动自适应控制方法
YANG WENSHUANG (author) / QUE SHUIJIE (author) / YAN HEZHONG (author) / LIU HUA (author) / YUE QING (author) / QIN ZHAOFU (author) / TAN FEILIANG (author) / XIE WENCHANG (author) / CHU MINHONG (author)
2020-11-03
Patent
Electronic Resource
Chinese
IPC:
E01D
BRIDGES
,
Brücken
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