CN202766974U

CN202766974U - Bent cap bearing frame without full framing

Info

Publication number: CN202766974U
Application number: CN2012203082067U
Authority: CN
Inventors: 郑建; 胡彪; 赵余夫
Original assignee: Hongrun Construction Group Co Ltd
Current assignee: Hongrun Construction Group Co Ltd
Priority date: 2012-06-27
Filing date: 2012-06-27
Publication date: 2013-03-06
Anticipated expiration: 2022-06-27

Abstract

The utility model relates to a bent cap bearing frame without a full framing, which adopts the technical scheme that steel pipes with the sizes of Phi 400*7 mm and Phi 277*6.5 mm and I56 I-beams are adopted to manufacture trusses; steel pipes with the size of Phi 400*7 mm are adopted to manufacture bearing vertical uprights; the trusses and the vertical uprights are connected through high-strength bolts; the two trusses are connected by using precision rolling deformed steel bars and [28 channel steel therebetween; the trusses and the vertical uprights are clasped with reinforced concrete upright posts by using [20 channel steel; and the bent cap load is transmitted to the trusses, the vertical uprights, a bearing platform and a pile foundation through bottom die distribution beams at the top of the trusses. According to the bent cap bearing frame without the full framing, the reinforcement processing is carried out without a foundation, vertical uprights are few, the occupied area of the ground is small, an overall processing manner is adopted, the work amount of manual operation for installation is less, and the installation is simpler.

Description

A kind of bent cap bearing frame that does not need full framing

Technical field

The utility model application relates to the visual plant device that uses in bridge construction, suitable viaduct bent cap support bracket construction.

Background technology

General bridge viaduct bent cap is when formwork erection, the below need set up steel pipe scaffold and template and concrete full hall support bracket, therefore need to process setting up ground, take and tear the artificial of steel pipe scaffold and support bracket open, the a considerable amount of steel pipes of field control, when below running into bent cap, being river, highway or other obstructions, can't set up steel pipe scaffold and template and concrete support bracket.

Process special bent cap support, supporting part mainly contains vertical rod and truss, and vertical rod stands on the cushion cap, and vertical rod top uses truss that bent cap steel concrete, template, facility, constructor's Load Transfer are arrived vertical rod, cushion cap, pile foundation.Cantilever Beams is used in the truss upper end, and as operating personnel's operation platform, the bolt splicing is adopted in simultaneously truss and vertical rod.The assembling in situ type construction, manually-operated is few, and speed of application is fast.Therefore need not set up scaffold, the processing of support ground and set up full framing.

The utility model content

For overcoming existing traditional full framing when constructing, run into other obstructions such as river, traffic route are arranged under the Coping Construction plane of projection, both support ground and traffic above-ground were relatively more difficult, and the deficiency that rod member is more, construction is loaded down with trivial details, the utility model provides a kind of bent cap bearing frame that does not need full framing, need not ground and carries out consolidation process, and vertical rod quantity is few, ground takes up room little, adopts whole processing, and installation manual work engineering quantity is few, installation is more simple.

The technical scheme that its technical problem that solves the utility model adopts is: use φ 400 * 7mm, φ 277 * 6.5mm steel pipe and I56 i iron to make truss, use φ 400 * 7mm steel pipe manufacturing load-bearing vertical rod, truss is connected by high-strength bolt with vertical rod.Use essence bundle screw-thread steel and 28 channel-section steels of being connected to connect between two truss structures.Truss, vertical rod use that [20 channel-section steels and reinforced concrete upright column are held tightly.The bent cap load passes for arriving truss, vertical rod, cushion cap, pile foundation by the bed die distribution beam on the truss top.

The beneficial effects of the utility model are that the employing trussed construction supports, and has reduced the bottom vertical rod and has arranged scope, has realized that the traffic above-ground of bent cap view field is unimpeded.The load-bearing fulcrum is positioned on the cushion cap, need not to carry out the support ground again and processes, and has solved river course, the difficult problem of traffic route scope support ground processing.Truss regularization processing has realized standardized production, has reduced the execute-in-place amount, has shortened support the installation and removal time.Saving is artificial and accelerated construction speed, has saved cost.This utility model device calculates by computer software and meets intensity, rigidity, stability requirement, and is feasible by practice test.Change such as bent cap appearance and size in the actual engineering, can satisfy instructions for use by size and the cloth postpone of adjusting rod member.

Description of drawings

Fig. 1 is structure front schematic view of the present utility model

Fig. 2 is texture edge schematic diagram of the present utility model

Fig. 3 is truss schematic diagram of the present utility model

Fig. 4 is node schematic diagram of the present utility model

The specific embodiment

Below in conjunction with drawing the utility model patent is described in further detail.

In Fig. 1, Two bors d's oeuveres φ 400 * 7mm steel pipe manufacturing is adopted in vertical rod, for ease of adjusting height, make the modulus pipe nipple, connect by flange, for increasing vertical rod stability, [20 channel-section steels are made anchor ear, tighten by φ 25 fining twisted steels vertical rod is connected with reinforced concrete upright column in use.Truss adopts φ 400 * 7mm, φ 277 * 6.5mm steel pipe and I56 i iron welding production, for ease of transportation, is divided into three sections during processing, adopts flange to connect, and [28 channel-section steels and φ 25 essences are pricked screw-thread steel and connected into integral body in employing between two truss structures.Distribution beam adopts the I16 i iron at the bottom of the bent cap, is installed on the truss, and spacing is 50cm approximately, and bent cap face 800mm is respectively stretched out at two ends, so that constructor's operating platform to be provided.Around platform, in the vertical rod of I16 i iron welding φ 48 * 3.5mm steel pipe as pedestrian guard rail, between φ 48 * 3.5mm steel tube poles, vertical rod is interconnected as horizon bar with φ 48 * 3.5mm steel pipe, connect and adopt right-angle coupler, horizon bar is twice up and down, below one horizon bar from platform 60cm, above one horizon bar from platform 120cm, so the length of φ 48 * 3.5mm steel tube poles is 120cm at least, hang close order safety net in the railing outside.At the two ends of platform, because the bent cap bottom surface is not horizontal plane, so at two tripods of platform two ends placement, tripod is welded by shaped steel, and be connected with platform welding, distribute crossbeam and shaped steel tripod to lay the lumps of wood at the I16 i iron, lay the bent cap bed die at the lumps of wood.

In Fig. 3, the truss centre-height is 4m, upper chord adopts Two bors d's oeuveres 56# i iron, lower chord to adopt Two bors d's oeuveres HW300 * 300 shaped steel, web member to adopt φ 400 * 7mm and φ 277 * 6.5mm steel pipe, add to adopt man-hour and be welded to connect making, for ease of transportation, at top-bottom chord moment of flexure minimum position, two fulcrums, 1/4 place splice point is set, uses high-strength bolt to connect.Truss adopts two of front and back, adopt No. 16 channel-section steels to connect as diagonal brace between two truss, side at Two bors d's oeuveres HW300 * 300 shaped steel and Two bors d's oeuveres 56# i iron is welded with scab, end and scab at No. 16 channel-section steels have bolt hole, are connected with bolt by scab between No. 16 channel-section steels and Two bors d's oeuveres HW300 * 300 shaped steel and the Two bors d's oeuveres 56# i iron.At the top of two truss, the connection horizon bar is arranged between two truss, connect horizon bar and adopt the 28a channel-section steel, be connected with bolt by scab between 28a channel-section steel and the Two bors d's oeuveres 56# i iron.Be welded with web at the web of Two bors d's oeuveres HW300 * 300 shaped steel and Two bors d's oeuveres 56# i iron and add powerfully, purpose prevents the web unstability of Two bors d's oeuveres HW300 * 300 shaped steel and Two bors d's oeuveres 56# i iron.Scab and add the thick A3 steel plate of powerful employing 12mm.Welding is adopted in connection between top-bottom chord and the web member, and weld bead height is greater than rod member thickest in top-bottom chord and the web member.Being connected between web member and the top-bottom chord adopted outside the welding, is provided with the reinforcement steel plate at position while welding.

In Fig. 4, truss is connected the employing high-strength bolt and connects with vertical rod, scab is arranged at the top in vertical rod, the M20 bolt hole is arranged on the scab, and scab adopts the A3 steel plate of thickness 15mm, is of a size of 560*960*15mm, scab and column steel-pipe welding, the stiffener that 70*70*10 is arranged between scab and steel pipe, the stiffener of 70*70*10 and column steel pipe and scab weld, and guarantee the bonding strength of scab and column steel pipe.Two bors d's oeuveres φ 400 * 7mm steel pipe manufacturing is adopted in vertical rod, for ease of adjusting height, every 5m one joint of column, connect by flange,, connect by the flange that is of a size of 560*960*15mm between every joint, the M20 bolt hole is arranged on the flange, for increasing vertical rod stability, adopt anchor ear that support is connected with reinforced concrete upright column.[20 channel-section steels are made anchor ear, by tightening φ 25 fining twisted steels vertical rod and reinforced concrete upright column are connected firmly in use.[anchor ear of 20 channel-section steels making links to each other with direct 4 junction plates of column, the wherein steel plate of two 12mm and column welding, the steel plate of two 15mm is for [20 channel-section steel anchor ears are connected with the steel plate of two 12mm, the bolt that directly passes through diameter M20 between the steel plate of two 15mm connects the size 300*350*15mm of the steel plate of two 15mm.[two ends of 20 channel-section steel anchor ears are welded with spacing steel plate, are used for holding the reinforced concrete upright column of moulding tightly, and Two bors d's oeuveres φ 400 * 7mm steel pipe post can't be moved, and guarantee that the bent cap support can not topple.Junction plate is adopted in the connection that reaches between the upper chord between the lower chord, junction plate size 338*720*15mm between the upper chord, junction plate size 640*460*15mm between the lower chord, it is the bolt hole of M20 that diameter is arranged on the junction plate, and have add powerful for strengthening being connected between scab and the top-bottom chord.

Claims

1. bent cap bearing frame that does not need full framing is characterized in that: use steel pipe and i iron to make truss, use steel pipe manufacturing load-bearing vertical rod, truss is connected by high-strength bolt with vertical rod.

2. a kind of bent cap bearing frame that does not need full framing according to claim 1 is characterized in that: use essence to prick screw-thread steel between two truss structures and be connected with channel-section steel.

3. a kind of bent cap bearing frame that does not need full framing according to claim 1 is characterized in that: truss, vertical rod use channel-section steel and reinforced concrete upright column to hold tightly.