CN109555021A - It is a kind of without pre-buried, movable continuous beam 0# block bracket - Google Patents
It is a kind of without pre-buried, movable continuous beam 0# block bracket Download PDFInfo
- Publication number
- CN109555021A CN109555021A CN201811467708.2A CN201811467708A CN109555021A CN 109555021 A CN109555021 A CN 109555021A CN 201811467708 A CN201811467708 A CN 201811467708A CN 109555021 A CN109555021 A CN 109555021A
- Authority
- CN
- China
- Prior art keywords
- girder
- bracket
- connection
- diagonal brace
- pull rod
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
It is a kind of without pre-buried, movable continuous beam 0# block bracket, the connection girder including both two English trusses and connection；English truss includes bracket girder, vertical pull rod, support end plate and diagonal brace, bracket girder is horizontally disposed, vertical pull rod is connected below bracket girder, the lower end of vertical pull rod connects vertically arranged support end plate, diagonal brace is obliquely installed between bracket girder and support end plate, connection girder is horizontally disposed and both ends are connected with the bracket girder of two English trusses respectively, constructs for continuous beam 0# block.The present invention reduces high altitude operation work amounts, avoid overhead welding, reduce construction risk, it is ensured that operation safety；English truss is ensured in ground welding, welding quality；The peace of English truss and connection girder tears operation convenience, safety open, improves construction efficiency；The bracket of dismounting directly can be diverted to similar engineering in week, improve utilization rate, reduce construction cost.
Description
Technical field
The invention belongs to technical field of building construction, are related to the auxiliary equipment of bridge construction, in particular to it is a kind of without it is pre-buried,
Movable continuous beam 0# block bracket.
Background technique
With the fast development of China's construction of road and bridge, whether the bridge construction of railway or highway is all gradually to mountain area
Or the directions such as multi-level junction are developed, and thus cause high pier shaft concrete continuous beam to be used more and more widely, while bridge
Location orographic condition also becomes increasingly complex.For continuous beam 0# block cast-in-place construction, previous raft support method obviously cannot be completed full
Sufficient demand, Bracket method cantilever construction technology come into being.And the common cast-in-place bracket of 0# block is rigid design, is needed and pier top
Connection constraints are consolidated by built-in fitting, the installation and welding of bracket are high altitude operation, and risk is high, quality is not easy to control, and
Such carrier structure more or less wrecks in dismounting Shi Douhui, is difficult directly to be used in turn.
The high altitude operation of bracket installation process how is reduced or avoided, improves installation accuracy and construction quality, and guarantee to hold in the palm
Frame can be used in turn in similar engineering, save construction cost, this will further test the wisdom of construction technical staff, and
The development trend of project management.
Summary of the invention
The present invention is in view of the above-mentioned problems, provide a kind of without pre-buried, movable continuous beam 0# block bracket.
The purpose of the present invention can be realized by following technical proposals: a kind of without pre-buried, movable continuous beam 0# block support
Frame, the connection girder of two English trusses of English truss and connection including the setting of two axial symmetry；The English truss
Including bracket girder, vertical pull rod, support end plate and diagonal brace, the bracket girder is horizontally disposed, connects below bracket girder
There is vertically arranged vertical pull rod, is connect at the upper end of the vertical pull rod and close one end of bracket girder, vertical pull rod
Lower end is connected with vertically arranged support end plate, and the diagonal brace is obliquely installed between bracket girder and support end plate, diagonal brace
It is connect at upper end and the close other end of bracket girder, the lower end of diagonal brace and support end plate connection；The connection girder level is set
It sets and both ends is connected with one end of the bracket girder of two English trusses respectively.
Further, the bracket girder and diagonal brace are fashioned iron, and support end plate is steel plate, the vertical pull rod be fashioned iron,
Steel pipe, steel plate, fining twisted steel or steel strand wires.
Further, the connection girder is fining twisted steel.
Further, the diagonal brace includes main brace and auxiliary diagonal brace.
Further, one end of the bracket girder is welded with steel plate.
Compared with prior art, beneficial effects of the present invention: 1, bracket of the present invention distinguishes two English trusses
Assemble integral, then disposable lifting, two English trusses mainly pass through fashioned iron in bridge pier pier top and are connected with bolt, no height
Empty weld job compares the existing construction technology connected at present in pier top by built-in fitting, and present invention substantially reduces high-altitude works
Industry workload, avoids overhead welding, reduces construction risk, it is ensured that operation safety；
2, two English trusses complete assembled welding on ground, and construction quality is easily controllable, splicing structure size and node weld
Quality is ensured that the length for connecting girder can be prepared after the completion of pier construction according to pier shaft actual size, and peace is torn open
Operation is convenient, directly enhances construction efficiency, saves the construction period, avoids the long-term throwing of the resources such as construction machinery and operating personnel
Enter, reduces construction cost indirectly；
3, bridge pier pier shaft no setting is required built-in fitting, simplifies the working procedure of pier shaft, avoids because built-in fitting precision is not high to support
The influence of frame stress eliminates the action of pier shaft built-in fitting dismounting and pier shaft surface reconditioning after completion.
4, the construction of continuous beam 0# block finishes tail-bracket and removes conveniently, and directly releasing is i.e. dismountable after being bolted, and avoids
The thermal cutting of demolishing process works, while also ensuring the construction safety of bracket demolishing process.
5, demolishing process can guarantee that bracket is not damaged, and the bracket of dismounting directly can be diverted to similar engineering week, improve
The utilization rate for auxiliary equipment of constructing reduces construction cost.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Fig. 2 is the structural schematic diagram of the present invention during installation.
Part numbers are as follows in figure:
1 connection girder
2 bracket girders
3 main braces
4 auxiliary diagonal braces
5 vertical pull rods
6 support end plates
7 bolt connection nodes
8 pier shafts
9 continuous beam 0# blocks
10 continuous beam 0# block brackets
11 bearing pad stones.
Specific embodiment
Below in conjunction with the attached drawing specific embodiment that the present invention will be described in detail, those skilled in the art is made to become apparent from geography
How solution practices the present invention.Although describing the present invention in conjunction with its preferred embodiment, these embodiments are
It illustrates, is not intended to limit the scope of the invention.
It is a kind of without pre-buried, movable continuous beam 0# block bracket referring to Fig. 1, the English truss including the setting of two axial symmetry
With the connection girder 1 of two English trusses of connection；The English truss includes bracket girder 2, vertical pull rod 5, support end
Plate 6 and diagonal brace, the bracket girder 2 is horizontally disposed, and vertically arranged vertical pull rod 5 is connected with below bracket girder 2, described
It is connect at the vertical upper end of pull rod 5 and close one end of bracket girder 2, the lower end of vertical pull rod 5 is connected with vertically arranged branch
End plate 6 is supportted, the diagonal brace is obliquely installed between bracket girder 2 and support end plate 6, the upper end of diagonal brace and leaning on for bracket girder 2
It is connected at the nearly other end, the lower end of diagonal brace is connect with support end plate 6；The connection girder 1 is horizontally disposed and both ends pass through respectively
Bolt is connected with one end of the bracket girder 2 of two English trusses, and then it is whole to constitute carrier structure, wherein described
The bolt connection node 7 of one end of connection girder 1 and bracket girder 2 is shown in Fig. 1 at partial enlargement.
Wherein, the bracket girder 2 is formed steel construction, and bracket girder 2 is primarily subjected to pulling force and shearing, 2 innings of bracket girder
Portion, which shears biggish position, can be used the measure for being welded with steel plate reinforcement to enhance shearing resistance and pressure-bearing effect；The connection girder 1 one
As with bracket girder 2 be same type formed steel construction, when for continuous beam 0# block cast-in-place construction, connect girder 1 and two triangle purlins
The junction of the bracket girder 2 of frame should be located at pier top, and should have certain safe distance away from 8 edge of pier shaft, in order to connecting and
Demolition Construction.
The vertical pull rod 5 is the component for transmitting pulling force, and multiple types, such as fashioned iron, steel pipe, steel can be used in section form
The structures such as plate, fining twisted steel or steel strand wires, should ensure that play and are effectively transmitted to hold in the palm by the vertical force component of diagonal brace lower sustainer
The effect of frame girder 2.
The support end plate 6 is steel plate structure, when for continuous beam 0# block cast-in-place construction, supports end plate 6 and concrete pier
8 surface good fit of body, support end plate 6 itself is compression-member, and the horizontal component of diagonal brace lower sustainer is effectively transmitted
To pier shaft 8, play the role of expanding 8 compression area of pier shaft, diffusion 8 pressure of pier shaft.
The diagonal brace is formed steel construction, and diagonal brace is primarily subjected to pressure, and diagonal brace includes main brace 3, may also include auxiliary diagonal brace
4, main brace 3 is the component for being primarily subjected to pressure, determines the need for setting auxiliary diagonal brace 4 according to force-bearing situation calculating or determines
The quantity for assisting diagonal brace 4 to be arranged and position.
Monolithic this when constructing without pre-buried, movable continuous beam 0# block bracket 10, first by bracket girder 2, vertical pull rod 5, branch
It supports end plate 6, diagonal brace and constitutes two independent English trusses in ground welding respectively, one end of two English trusses passes through spiral shell respectively
Bolt connects to form bracket entirety with the both ends for connecting girder 1, and bracket is then lifted on pier top positioning；Or two three be welded
Angle truss individually lifts, and then the bracket girder 2 of two English trusses is connected with girder 1 is connect by bolt in pier top
It connects.Wherein, the production length for connecting girder 1 should be less than pier top width, and match with 8 actual size of pier shaft；Before bracket lifting
Pier top should be cleared up and be flattened, guarantee bracket girder 2 and connection girder 1 and pier top concrete surface good fit.All bracket constructions
After the completion, the ipsilateral English truss lateral connection of pier shaft will be located at using necessary lateral connection rod piece and forms stable frame, it
After construct subsequent handling, complete continuous beam 0# block cast-in-place construction.
The Force principle of bracket after the completion of construction: it referring to fig. 2, is born by continuous beam 0# block 9 above certainly on bracket girder 2
The vertical load that weight and construction loads transmit, is converted to by triangular truss structure by the vertical load to get off is transmitted above
The pulling force of the pressure of diagonal brace, the pulling force of vertical pull rod 5 and bracket girder 2, the vertical force component of diagonal brace lower sustainer by drawing vertically
Bar 5 is transferred to bracket girder 2, occurs biggish shearing on bracket girder 2, while being crossed by diagonal brace lower end and vertical pull rod 5
The supporting horizontal component force is passed to pier shaft 8 by the support end plate 6 at place.Two English trusses positioned at two sides are connected by connection girder 1
Connect, the pulling force of the bracket girder 2 of two English trusses reaches stress balance inside system, diagonal brace upper end position should with it is main
Concentrated load point is corresponding, to reduce the moment of flexure and shearing inside bracket girder 2.In addition, to the node on bracket, connection
Construction and girder part are guaranteed that the bearing capacity of node and connecting structure is big by excessive part progress local strengthening design is cut
In component, to ensure structure safety.
It, can be before bearing pad stone 11 pours if connection girder 1 and pier top bearing pad stone 11 are interfered in bracket work progress
Connection girder 1 is embedded in advance inside bearing pad stone 11, and the both ends for connecting girder 1 are stretched out out of bearing pad stone 11, then again
One end of the bracket girder 2 of two English trusses is connected with the both ends for connecting girder 1 respectively.In special circumstances, the connection
The section form of girder 1 can make appropriate adjustment, such as use fining twisted steel instead, using the form being embedded on bridge pier in advance, prop up
Seat cushion stone 11 places fining twisted steel before pouring, and one end of the bracket girder 2 of two English trusses is passed through end plate and finish rolling
Screw-thread steel connection is equally played two English trusses and the connection connection of girder 1 forming whole effect.
The design of this bracket is to set backed beam structure based on pier top, if support and 11 height of bearing pad stone are not
Foot can pour conduit after pier top setting to place bracket girder 2, reduce by 2 absolute altitude of bracket girder, or directly referring to above-mentioned in pier
The mode of the pre-buried fining twisted steel of 8 upper side of body realizes the present invention.Structure for Continuous Rigid-framed Girder, pier top without support, can
The present invention is realized referring to the above-mentioned mode in the pre-buried fining twisted steel of 8 upper side of pier shaft.
The present invention only provides the mentality of designing and principle of bracket, the specific truss shape and detailed dimensions of carrier structure by
Continuous beam construction determines that the sectional dimension size of above-mentioned all components each depends on the load acted on bracket.
One embodiment
Certain three-span continuous beam engineering, cross-section of bridge are single box single chamber concrete box girder construction, the wide 12.6m of bridge floor, main pier pier shaft 8
The long 12m of high 37m, continuous beam 0# block 9, using without pre-buried, movable continuous beam bracket.Bracket girder 2 and connection girder 1 are using double
I36a I-steel is spelled, main brace 3 and auxiliary diagonal brace 4 use Two bors d's oeuveres I20a I-steel, and vertical pull rod 5 uses I20 channel steel, support end
Plate 6 is the steel plate of 20mm thickness, and bracket girder 2, vertical pull rod 5, support end plate 6, main brace 3 and auxiliary diagonal brace 4 use gusset plate
Welded connecting forms English truss, and bracket girder 2 is bolted with connecting girder 1 and directly adopt M27, bracket girder 2 and pier top
The position of EDGE CONTACT is welded into deep floor using 20mm steel plate, reinforces the local shearing resistance and pressure-bearing effect at the position.
Two English trusses are formed in ground welding, and are connected by screw bolts to form integral bracket with girder 1 is connect, and are used
There is tower crane that monolithic bracket is disposably lifted to the designated position for being placed directly in pier top in place by pier, operating personnel is in pier top
Slightly adjustment is aligned in the position line that setting-out marks, i.e., dismountable suspension hook completes the installation of monolithic bracket, sees Fig. 2.To all
After bracket is all installed on pier top, the ipsilateral English truss lateral connection of pier shaft will be located at using the angle steel of L75 × 8 and form entirety
Frame, the primary and secondary of installation template is stupefied on this basis and panel, the reinforcing bar binding for subsequent continuous beam 0# block 9 of constructing and concrete pour
The processes such as build.After constructing to continuous beam 0# block 9, bed die system is removed first, then releases the lateral confinement of bracket, i.e.,
The angle steel of L75 × 8, last operating personnel remove the spiral shell of the junction of two English trusses and connection girder 1 in pier top (beam bottom)
Bolt, crane auxiliary two English trusses of extraction, favorably accomplishes bracket and removes work.
It should be pointed out that can also have the embodiment of a variety of transformation and remodeling for the present invention through absolutely proving,
It is not limited to the specific embodiment of above embodiment.Above-described embodiment as just explanation of the invention, rather than to this
The limitation of invention.In short, protection scope of the present invention should include that those are apparent to those skilled in the art
Transformation or substitution and remodeling.
Claims (5)
1. a kind of without pre-buried, movable continuous beam 0# block bracket, which is characterized in that the English truss including the setting of two axial symmetry
With the connection girder of two English trusses of connection；The English truss include bracket girder, vertical pull rod, support end plate and
Diagonal brace, the bracket girder is horizontally disposed, and vertically arranged vertical pull rod, the vertical pull rod are connected with below bracket girder
Upper end and close one end of bracket girder at connect, the lower end of vertical pull rod is connected with vertically arranged support end plate, described
Diagonal brace is obliquely installed between bracket girder and support end plate, is connect at the upper end of diagonal brace and the close other end of bracket girder,
The lower end of diagonal brace and support end plate connection；The connection girder is horizontally disposed and the both ends support with two English trusses respectively
One end of frame girder is connected.
2. according to claim 1 without pre-buried, movable continuous beam 0# block bracket, which is characterized in that the bracket girder
It is fashioned iron with diagonal brace, support end plate is steel plate, and the vertical pull rod is fashioned iron, steel pipe, steel plate, fining twisted steel or steel strand wires.
3. according to claim 2 without pre-buried, movable continuous beam 0# block bracket, which is characterized in that the connection girder
For fining twisted steel.
4. according to claim 1 or 2 or 3 without pre-buried, movable continuous beam 0# block bracket, which is characterized in that described oblique
Support includes main brace and auxiliary diagonal brace.
5. according to claim 4 without pre-buried, movable continuous beam 0# block bracket, which is characterized in that the bracket girder
One end be welded with steel plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467708.2A CN109555021A (en) | 2018-12-03 | 2018-12-03 | It is a kind of without pre-buried, movable continuous beam 0# block bracket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811467708.2A CN109555021A (en) | 2018-12-03 | 2018-12-03 | It is a kind of without pre-buried, movable continuous beam 0# block bracket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109555021A true CN109555021A (en) | 2019-04-02 |
Family
ID=65868637
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811467708.2A Pending CN109555021A (en) | 2018-12-03 | 2018-12-03 | It is a kind of without pre-buried, movable continuous beam 0# block bracket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109555021A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318344A (en) * | 2019-06-28 | 2019-10-11 | 中交二航局第四工程有限公司 | A kind of No. 0 block bracket of novel steel box-girder and No. 0 block erection construction method |
| CN114960447A (en) * | 2022-06-15 | 2022-08-30 | 中铁上海工程局集团第五工程有限公司 | Cast-in-place roof beam support convenient to install fast |
-
2018
- 2018-12-03 CN CN201811467708.2A patent/CN109555021A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110318344A (en) * | 2019-06-28 | 2019-10-11 | 中交二航局第四工程有限公司 | A kind of No. 0 block bracket of novel steel box-girder and No. 0 block erection construction method |
| CN110318344B (en) * | 2019-06-28 | 2024-04-19 | 中交二航局第四工程有限公司 | Novel steel box girder No. 0 block support and No. 0 block erection construction method |
| CN114960447A (en) * | 2022-06-15 | 2022-08-30 | 中铁上海工程局集团第五工程有限公司 | Cast-in-place roof beam support convenient to install fast |
| CN114960447B (en) * | 2022-06-15 | 2023-07-14 | 中铁上海工程局集团第五工程有限公司 | Cast-in-situ beam support bracket convenient to install fast |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103924505B (en) | Use prefabricated steel-concrete combination T beam and the construction method of Wavelike steel webplate | |
| CN101220580A (en) | Portrait multi-point continuously dragging construction method for trussed steel beam | |
| CN109267487A (en) | A kind of long big section bent cap bracket system of overhanging | |
| CN205012666U (en) | High altitude steel construction vestibule integrally lift up support structure | |
| CN104389419A (en) | Cantilevered formwork platform installation structure and construction method | |
| CN102322142A (en) | Construction method for 45-DEG-inclined long-overhanging reinforced concrete structure project | |
| CN104314013B (en) | Two Cantilever Construction Methods of a kind of pole asymmetrical array beam | |
| CN109555021A (en) | It is a kind of without pre-buried, movable continuous beam 0# block bracket | |
| CN103774541A (en) | Upper and lower integral structure of multi-piece type combined beam bridge and construction method thereof | |
| CN105672568A (en) | Stratified casting construction method of super-large-section stiffened concrete transfer beam | |
| CN109235280A (en) | The operation platform and construction method of bridge coping | |
| CN204282803U (en) | To encorbelment formwork structure for mounting platform | |
| CN205712733U (en) | Super-section strengthening concrete conversion beam formwork system | |
| CN110878522B (en) | Main tower lower cross beam construction system and construction method | |
| CN209194347U (en) | The operation platform of bridge coping | |
| CN204780635U (en) | Super wide nonprismatic continuous beam 0# piece concreties and relieves construction structures | |
| CN106638265A (en) | Steel reinforced concrete beam rigid framework bridge | |
| CN215482366U (en) | Double-line continuous beam bracket structure | |
| CN209779451U (en) | No pre-buried, movable continuous beam 0# piece bracket | |
| CN201339320Y (en) | High-altitude overhanging hanging reinforced concrete hanging bracket | |
| CN108104463A (en) | Girder with rolled steel section en cased in concrete form bracing system construction technology | |
| CN105648911B (en) | Bridge construction Cast-in-situ Beam, bent cap, binder concrete adhesion type prestressed girder support | |
| CN209923791U (en) | Workpiece for cross-line construction of formwork suspension casting combined system | |
| CN209227390U (en) | A kind of assembled Multifunction side is across cast-in-place support | |
| CN215052006U (en) | Double-limb thin-wall pier assembled bracket structure |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |