CN201762666U

CN201762666U - Capping construction support

Info

Publication number: CN201762666U
Application number: CN2010205313086U
Authority: CN
Inventors: 周琦; 尚新德; 王传永; 曲华; 曲久彬; 栾显国; 张国辉
Original assignee: China Railway 19th Bureau Group Co Ltd; Second Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd; First Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd; Fifth Engineering Co Ltd of China Railway 19th Bureau Group Co Ltd
Priority date: 2010-09-16
Filing date: 2010-09-16
Publication date: 2011-03-16
Anticipated expiration: 2020-09-16

Abstract

The utility model discloses a capping construction support, which solves the technical problems of high cost, slow construction progress and large difficulty to detach and build a mold, all caused by building a support from the ground, during capping construction. The capping construction support comprises a built bridge pier (7) and two eared half-annular hoops (6); the two eared half-annular hoops (6) are fixedly encircled on the built bridge pier (7) by a fixed bolt (8); skid-proof rubber pads (5) are arranged between the eared half-annular hoops (6) and the built bridge pier (7); two I-shaped steels (4) are respectively arranged on two ears of the half-annular hoops (6); transverse square-edge timbers (3) are respectively arranged on the two I-shaped steels (4) arranged on the ears of the half-annular hoops (6); longitudinal square-edge timbers (2) are arranged on the transverse square-edge timbers (3); and capping bottom dies (1) are arranged on the longitudinal square-edge timbers (2). The capping construction support is suitable for capping construction of highway bridges on water or land.

Description

A kind of bent cap construction bracket

Technical field

The utility model relates to the construction bracket of bent cap in a kind of highway bridge civil engineering.

Background technology

Highway bridge is when carrying out the bent cap civil engineering, and general the employing set up support from ground, and when running into the not enough or construction on-water bridge of bearing capacity of foundation soil, build ground support and can meet difficulty, the cost height, construction speed is slow, and the formwork erection form removal effort of taking a lot of work is inconvenient again.

Summary of the invention

The utility model provides a kind of bent cap construction bracket, has solved highway bridge and has adopted when carrying out the bent cap civil engineering from ground and set up the cost height that support runs into, and construction speed is slow, the take a lot of work technical problem of effort of formwork erection form removal.

The utility model overcomes the above problems by following scheme:

A kind of bent cap construction bracket, the semiorbicular anchor ear that comprises completed bridge pier, two band ears, the semiorbicular anchor ear of described two band ears is fixedly encircled on completed bridge pier by set bolt, between semiorbicular anchor ear and completed bridge pier, be provided with the anti-slip rubber pad, on two ears of semiorbicular anchor ear, be respectively arranged with i iron, the i iron that is provided with respectively on two ears of semiorbicular anchor ear is provided with the horizontal lumps of wood, laterally the lumps of wood is provided with vertical lumps of wood, and vertically the lumps of wood is provided with the bent cap bed die.

Below two ears of semiorbicular anchor ear i iron is set respectively, this i iron vertically is provided with up and down, and the upper end of i iron is connected with the below backing plate of two ears of semiorbicular anchor ear, and the lower end of i iron is supported on cushion cap or the binder.

The utility model need not on the pier stud of bridge pier built-in fitting to be set, and does not influence the presentation quality of the pier stud of bridge pier; Construction technology is easy, is not subjected to the restriction of bearing capacity of foundation soil, is applicable to the bent cap construction of the highway bridge on waterborne or land.

Description of drawings

Fig. 1 is a structural representation of the present utility model

Specific embodiment

A kind of bent cap construction bracket, the semiorbicular anchor ear 6 that comprises completed bridge pier 7, two band ears, the semiorbicular anchor ear 6 of described two band ears is fixedly encircled on completed bridge pier 7 by set bolt 8, between semiorbicular anchor ear 6 and completed bridge pier 7, be provided with anti-slip rubber pad 5, on two ears of semiorbicular anchor ear 6, be respectively arranged with i iron 4, the i iron 4 that is provided with respectively on two ears of semiorbicular anchor ear 6 is provided with the horizontal lumps of wood 3, laterally the lumps of wood 3 is provided with vertical lumps of wood 2, and vertically the lumps of wood 2 is provided with bent cap bed die 1.Below two ears of semiorbicular anchor ear 6 i iron is set respectively, this i iron vertically is provided with up and down, and the upper end of i iron is connected with the below backing plate of two ears of semiorbicular anchor ear 6, and the lower end of i iron is supported on cushion cap or the binder.

The utility model is to finish building of support by following steps:

1. preparation of construction: by mechanical calculation processing and fabricating shroud ring, the processing screw rod is made the bent cap template according to drawing, makes concrete arc cushion block, the processing reinforcing bar.

2. shroud ring is installed: calculate the design attitude of shroud ring according to design drawing and construction process requirement, with leading chain or loop wheel machine is in place shroud ring.

3. the i iron and the vertical, horizontal lumps of wood are installed.

4. bed die is installed.

5. measure unwrapping wire: choose along the design projection line of part at the design sideline and the bent cap two ends that emit bent cap on bed die.

6. reinforcing bar binding.

7. side form is installed: during reinforcing template, thereby 10cm place, the two adjacent template perps left and right sides must establish relative support and backguy to prevent when the concrete pouring two form joints place distortion and to cause the concrete faulting of slab ends to stay permanent defective.

8. fluid concrete: the concrete delamination cast, every layer thickness is 30cm, concrete pouring adopts the plug-in type vibrating head to vibrate, and auxilliary artificial inserting smash, so that reduce bubble.Should notice after concreting is finished that concrete surface receives light, receive behind the light that concrete surface will be put down, light, neat, suitable.

9. concrete curing: concrete curing covers with geotextiles, the straw bag covering curing is not used in the watering maintenance during maintenance, thereby in order to avoid cause the mottled concrete apparent mass that influences of concrete surface, it is moistening to remain concrete surface during maintenance, and the maintenance fate is no less than 7 days.

Adopt the shroud ring method to carry out the bent cap construction, the design load of bent cap and working load all support by the frictional force of shroud ring and pier shaft, so must conscientiously carry out the mechanics check to shroud ring, the following aspect of main test before construction: the inspection of shroud ring friction counter-force is calculated; The inspection of shroud ring intensity is calculated; The inspection of pier stud concrete strength is calculated; The inspection of distribution beam i iron intensity is calculated.Adopt the shroud ring method to carry out the bent cap construction, owing to be subjected to the restriction of pier stud diameter, the construction operation space is smaller, is again work high above the ground in addition, must note construction safety when construction.Adopt the shroud ring method to carry out the bent cap construction, the design load of bent cap and working load all support by the frictional force of shroud ring and pier shaft, so conscientiously whether the attachment bolt of shroud ring tightens before construction, prevent that shroud ring glides in the concrete work progress, cause quality accident.Because of the friction shroud ring is born bent cap deadweight and all working load, it is perfectly safe that its intensity and stability need to guarantee, so in construction, take measures such as extra reinforcing, specific practice is: divide at shroud ring bolt backing plate and put i-steel supporting, the pier shaft both sides are respectively established one, and its lower end is supported on cushion cap or the binder.

Claims

1. bent cap construction bracket, comprise completed bridge pier (7), the semiorbicular anchor ear (6) of two band ears, it is characterized in that, the semiorbicular anchor ear (6) of described two band ears is fixedly encircled on completed bridge pier (7) by set bolt (8), between semiorbicular anchor ear (6) and completed bridge pier (7), be provided with anti-slip rubber pad (5), on two ears of semiorbicular anchor ear (6), be respectively arranged with i iron (4), the i iron (4) that is provided with respectively on two ears of semiorbicular anchor ear (6) is provided with the horizontal lumps of wood (3), laterally the lumps of wood (3) is provided with vertical lumps of wood (2), and vertically the lumps of wood (2) is provided with bent cap bed die (1).

2. a kind of bent cap construction bracket according to claim 1, it is characterized in that, below at two ears of semiorbicular anchor ear (6) is provided with i iron respectively, this i iron vertically is provided with up and down, the upper end of i iron is connected with the below backing plate of two ears of semiorbicular anchor ear (6), and the lower end of i iron is supported on cushion cap or the binder.