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Construction device and construction method for hoop-type concrete-filled steel pipe reinforced single-column pier

A technology of steel pipe concrete and construction equipment, which is applied in bridge reinforcement, bridge, bridge maintenance, etc., can solve problems such as insufficient lateral overturning stability, and achieve the effect of easy control of production quality, easy implementation, and convenient processing and production

Active Publication Date: 2015-10-14
江苏五环建工集团有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The utility model is aimed at the safety problems caused by the lack of lateral overturning stability of the single-column pier of the existing expressway ramp bridge and urban overpass, and proposes a simple and practical hoop-type concrete-filled steel tube single-column pier reinforcement device and construction method

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  • Construction device and construction method for hoop-type concrete-filled steel pipe reinforced single-column pier
  • Construction device and construction method for hoop-type concrete-filled steel pipe reinforced single-column pier
  • Construction device and construction method for hoop-type concrete-filled steel pipe reinforced single-column pier

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Embodiment Construction

[0037] The embodiments of the invention will be further described below in conjunction with the accompanying drawings, but they are not intended to limit the invention.

[0038] A hoop-type concrete-filled steel pipe reinforced single-column bridge pier construction device, which consists of supporting steel backing plate 2, concrete-filled steel pipe pier column 4 for reinforcement, hoop device 5 and anchor device 6, among which concrete-filled steel pipe pier column 4 is used for reinforcement It is composed of steel pipe 4-1 and post-injection concrete 4-2. The hoop device 5 is composed of hoop A 5-1 (clamping reinforced steel pipe concrete pier 4), hoop B 5-2 (clamping the original reinforced concrete Independent pier column 3), steel cushion box A 5-3 (respectively cushioned at the outer ends of the two hoops A 5-1), steel cushion box B 5-4 (connected and cushioned at the outer ends of the hoop A 5-1 and between the hoop B 5-2) and several components such as fastening bol...

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Abstract

The invention discloses a hooped concrete-filled steel tube reinforced single-pole bridge pier constructing device and a construction method. The constructing device comprises reinforcing concrete-filled steel tube pier studs, a hooping device and an anchor device, wherein the reinforcing concrete-filled steel tube pier studs are respectively fixed on two sides of original independent steel concrete pier studs, the hooping device is used for horizontally connecting the reinforcing concrete-filled steel tube pier studs with the original independent steel concrete pier studs, and the anchor device is used for anchoring the bottoms of the reinforcing concrete-filled steel tube pier studs and a bearing platform. By utilizing the hooping effect of steel tubes on concrete, the device disclosed by the invention is beneficial for improving the compressive capacity of the concrete; by using the hooping device to horizontally connect the added concrete-filled steel tube struts with the original pier studs in a hooping manner, the constructing device is beneficial for improving the horizontal stability of the added concrete-filled steel tube struts, has the advantages of being simple in construction, clear and reasonable in stress, simple, convenient and easy to implement in construction process and the like, is applied to reinforcement of road ramp bridges and urban single-pole overpass bridge piers, and has the effects of guaranteeing the horizontal stability of the bridge structure and also saving resources.

Description

technical field [0001] The invention relates to bridge engineering in the field of engineering construction, in particular to a reinforcing device and a construction method for a bridge engineering single-column pier. Background technique [0002] Due to the advantages of reducing land occupation, increasing vision and beautiful bridge shape, single-pillar bridges are widely used in urban overpasses and high-speed ramp bridges in my country. Because there are too many vehicles in China that are three or four times overloaded, the overload considered by the designers is basically on the bending and compression resistance of the bridge, but the accidental unbalanced load of continuous overweight vehicles is not fully considered. With the overturning accident of the up-ramp bridge on Honghu Road of the Qunli Viaduct on the Third Ring Road on August 24, 2012, many domestic bridge design experts have discussed the hidden defects of bridges with single-pillar piers. , my country's...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E01D22/00
Inventor 张建华
Owner 江苏五环建工集团有限公司
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