Installing and constructing method of special-shaped tie bar, arch bridge and arch ring

A technology of tied arch bridge and construction method, applied in the field of bridge construction, can solve the problems of arch rib material storage, limited construction, difficult design and construction, large overall span of the arch bridge, etc., so as to shorten the construction period, reduce occupation and pollution, The effect of speeding up the construction progress

CN109457615AActive Publication Date: 2019-03-12合肥市公路桥梁工程有限责任公司
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2019-03-12

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Abstract

The invention discloses an installing and constructing method of a special-shaped tie bar, an arch bridge and an arch ring. The few-support method manufacturing and installing method of only arrangingtemporary support steel pipe piles at rod piece joints specifically includes the steps of making a preparation before construction, constructing temporary supports in water, hanging steel arch ribs,installing folding sections of the steel arch ribs, welding bridge positions, installing arch rib hanging rods and detaching arch rib temporary supports. During construction, a prefabricating and splicing mode is adopted, splicing is conducted through floating cranes, and the occupation and pollution of a water domain under a bridge are reduced; the multiple procedures are operated in parallel, the construction progress is accelerated, and the construction period is shortened; the temporary supports are only arranged at joint annular seams of large-section arch rib sections, the supports are small in occupied space, the passage under the bridge in the construction state is facilitated, and the influences on the passage under the bridge in across-lake construction and the surrounding socialenvironment are reduced; the errors of the steel arch rib sections are effectively reduced in the construction process, precise positioning and welding are achieved, and the linear manufacturing precision of the special-shaped arch ribs is ensured.
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Description

technical field

[0001] The invention belongs to the technical field of bridge construction, and in particular relates to a method for installing and constructing an arch ring of a special-shaped tie-rod arch bridge. Background technique

[0002] Generally, the suspenders of the tie-bar arch bridge are arranged vertically, and the load is transmitted to the main arch through the suspenders, so that the rational arch axes are all symmetrical curves. If the suspenders are arranged obliquely according to a slope, the derived reasonable arch axis is a skewed curve, and thus a new type of bridge structure-special-shaped arch bridge is obtained.

[0003] The span structure of the special-shaped arch bridge is composed of the main arch circle, inclined suspenders, tie beams and bridge deck. Regardless of the special-shaped arch or the normal arch, under the action of the load, the pressure line is consistent with the axis of the arch, which is a reasonable structural form. [0004...

Examples

Embodiment Construction

[0058] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are only used to illustrate and explain the present invention, and are not intended to limit the present invention.

[0059] Refer to attached Figure 1-5 , an installation and construction method for the arch ring of a special-shaped tie-bar arch bridge, the special-shaped tie-bar arch bridge includes steel arch ribs that gradually incline outward from bottom to top, special-shaped bridge decks 10 and bridge pier columns 40, and the steel arch ribs pass through A plurality of suspenders 20 distributed along the longitudinal spacing of the bridge are fixedly connected to the special-shaped bridge deck 10, and the steel arch rib includes a middle arch rib 31 and two side arch ribs 32 located at both ends of the middle arch rib 31, so The side arch rib 32 is divided into 7 hoist...