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Comprehensive technique method for reinforcing spandrel wall

A side wall technology, applied in bridge reinforcement, erection/assembly of bridges, bridge maintenance, etc., can solve problems such as the unsatisfactory effect of the side wall structure on the arch, and achieve the effect of preventing further development and eliminating the cause of the disease

Inactive Publication Date: 2012-11-14
HEBEI AGRICULTURAL UNIV.
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Problems solved by technology

[0003] The purpose of the present invention is to solve the unsatisfactory effect of the traditional single technical scheme to reinforce the complex factors (masonry mortar deterioration, water seepage and external load increase, etc.) on the arched side wall structure, and the disease continues to develop or the secondary disease occurs to provide an economical, reasonable, simple and reliable multi-technology integrated comprehensive reinforcement method

Method used

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  • Comprehensive technique method for reinforcing spandrel wall
  • Comprehensive technique method for reinforcing spandrel wall
  • Comprehensive technique method for reinforcing spandrel wall

Examples

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Embodiment Construction

[0015] Hereby enumerate the following construction examples, and cooperate with accompanying drawing to further illustrate the present invention.

[0016] A three-hole stone-masonry solid-belly arch bridge on a mountain road was completed in October 1969. The design standards are steam-15, hang-80, and the span l 0 = 6m, Yagaka f 0 = 3m, f 0 / l 0 =1 / 2, the net width of the bridge deck is 8.5m, the bridge length is 67m, and the total width of the bridge deck is 8.5m. The main arch ring, the side wall above the arch and the retaining wall behind the abutment are built with M7.5 mortar. The on-site investigation found that the side walls of the bridge had symptoms such as outward tilt, bulge, and cracks. In particular, the side wall of the left hole on the shade side and the main arch ring had slipped relative to each other, and there was a tendency for further development, so it should be reinforced and reconstructed. The side walls were reinforced in the following step...

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Abstract

The invention relates to a comprehensive technique method for reinforcing spandrel wall and belongs to the field of building traffic engineering. The comprehensive technique method adopts the 'anchor bar opposite-pulling anchoring+ drain hole+ building seam grouting' trinitarian comprehensive reinforcing technological technique to solve the problems of extroversion, lateral protruding and the like of the spandrel wall of a solid-web type arch bridge, namely lateral deformation of the spandrel wall is avoided by opposite-pulling anchoring through an opposite-pulling rebar clamped steel plate. Seepage water in arch filler is timely removed by drilling water drainage holes so that lateral pressure of a soil body is reduced, and shear strength and integrity of the spandrel wall are improved by building seam grouting. By means of the comprehensive technique method, dismantling and rebuilding are not needed, traffic interruption cannot be caused, the construction period is short, the cost is low, the reinforcing effect is good, and the comprehensive technique method is widely applicable to side wall reinforcing of solid-web type stone-laying arch bridges.

Description

technical field [0001] The invention relates to a comprehensive technical method for strengthening the upper side wall of a solid-belly arch bridge, belonging to the field of civil engineering and traffic engineering. Background technique [0002] Bridges and aqueducts are important buildings spanning rivers, valleys, and roads. They are the Adam's apple in lifeline projects such as roads and water delivery. Their safety and uninterrupted work are important guarantees for smooth lines. my country is a big country of bridges, with more than 500,000 bridges of various types, and tens of thousands of aqueducts, among which the number of solid-belly arch structures accounts for a large proportion. These structures are either congenitally deficient due to the limitation of economic and technical conditions at the time of construction, or because the current operating load exceeds the specification range at the time of construction, which is an overload operation, or due to the lo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E01D22/00
Inventor 郄志红季广军王鑫王磊任习文朱常志吴鑫淼张志宇
Owner HEBEI AGRICULTURAL UNIV.
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