A Method for Reconstruction of Masonry Arch Bridge with Longitudinal Perforation and Constant Load Balance

A masonry arch bridge, longitudinal technology, applied in the field of permanent load balance reconstruction of masonry arch bridge longitudinal perforation, can solve the problems of building dead load asymmetry, dead load asymmetry, deteriorating driving conditions, etc., to improve the safety of the bridge and maintain the appearance Consistent, improved mechanical properties
CN106400704BInactive Publication Date: 2017-07-07河南省安阳西北绕城高速公路有限公司 +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
河南省安阳西北绕城高速公路有限公司
Publication Date
2017-07-07
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention belongs to the technical field of bridge construction, and discloses a masonry arch bridge longitudinal perforation dead load balance transformation method. The masonry arch bridge longitudinal perforation dead load balance transformation method comprises the following steps: (a) a part of concrete of a bridge floor cast-in-place layer on the downslope side is removed; (b) channeling is carried out on an arch cavity filling along the longitudinal direction of a masonry arch bridge and a longitudinal groove is formed; (c) an abutment is arranged in the longitudinal groove, a perforation cover plate is laid, the abutment and two side walls jointly support the perforation cover plate, with this mode, longitudinal perforation holes are formed between the perforation cover plate and the arch cavity filling; and (d) concrete is poured on the perforation cover plate for filling a gap formed by the concrete removed in the step (a), thereby accomplishing masonry arch bridge longitudinal perforation dead load balance transformation. On the premise that no bridge floor longitudinal slope is changed, symmetrical balance of dead load weight of the left side and the right side of the masonry arch bridge is realized, stress symmetry of a main arch ring is guaranteed, the bridge safety is improved effectively, and the appearance uniformity of the upslope side and the downslope side of the masonry arch bridge is realized.
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Description

technical field

[0001] The invention belongs to the technical field of bridge road construction, and more specifically relates to a method for retrofitting a masonry arch bridge with longitudinal perforation and constant load balance. Background technique

[0002] Masonry arch bridge is a bridge structure with a long history. It is famous for its large load capacity, convenient material acquisition, firmness and durability, low maintenance cost, beautiful appearance, less technical work required, low construction cost and simple construction technology. world, is widely used. However, due to road reconstruction and longitudinal slope requirements, the decks of existing or many new masonry arch bridges need to be set in the form of unequal heights on the left and right sides to form a certain longitudinal slope to meet the vertical requirements of the road. However, the masonry arch bridge cannot bear the tensile force because the main arch ring has no steel bars. In order t...

Claims

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