Supporting structure of low cast-in-place capping beam and construction method thereof

Abstract

The invention relates to a supporting structure of a low cast-in-place capping beam and a construction method thereof. The supporting structure comprises a concrete cushion ply, a sand box, a plasticfilm and a bottom template arranged successively from bottom to top. The sand box comprises a frame, a split bolt and fine sand filler. The frame comprises two longitudinal frame strips and two transverse frame strips, a plurality of through holes are separately formed in corresponding positions of the two longitudinal frame strips, the split bolt comprises a split screw provided with threaded parts at two ends and two nuts, the split screw penetrates the frame and the thread parts of the split screw stretch out of the longitudinal frame strips through the through holes, the nuts are arrangedon the thread parts in a sleeving manner and are tightened till the nuts are compressed to the longitudinal frame strips, an inner cavity of the frame is fully filled with the fine sand filler, the top surface of the fine sand filler is aligned with the top surface of the frame, the plastic film covers the top surface of the sand box, the bottom template is arranged on the plastic film, and the capping beam is poured to the bottom template. According to the invention, the low cast-in-place capping beam can be constructed in a narrow space, disturbance to a soil body below is small, and the supporting structure is simple to construct and detach without affecting the safety of the structure below the soil body.

Description

technical field [0001] The invention relates to the field of bridge construction, in particular to a support structure of a low cast-in-place cap beam and a construction method thereof. Background technique [0002] At present, the conventional cast-in-place cover beam needs to be built on the cast-in-place cover beam support, and the cast-in-place cover beam support needs to occupy a large construction space, which requires a large amount of earthwork excavation, disturbs the undisturbed soil, and affects the structure below the soil. Greater impact. Contents of the invention [0003] The problem to be solved by the present invention is to provide a support structure of a low cast-in-place cover beam and its construction method, which can construct a low cast-in-place cover beam in a narrow space, without being affected by the construction space, and has no impact on the soil below. The disturbance is small, the construction and disassembly of the support structure are s...

AI Technical Summary

Problems solved by technology

[0002] At present, the conventional cast-in-place cover beam needs to be built on the cast-in-place cover beam support, and the cast-in-place cover beam support needs to occupy a large construction space, which requires a large amount of earthwork excavation, disturbs the undisturbed soil, and affects the structure below the soil. Greater impact

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