CN109252445A - Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure and its construction method - Google Patents
Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure and its construction method Download PDFInfo
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- CN109252445A CN109252445A CN201810523680.3A CN201810523680A CN109252445A CN 109252445 A CN109252445 A CN 109252445A CN 201810523680 A CN201810523680 A CN 201810523680A CN 109252445 A CN109252445 A CN 109252445A
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- steel pipe
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- support structure
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Classifications
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- 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
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
Abstract
The present invention relates to a kind of technical fields of Cast-in-situ Beam bracket, disclose a kind of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure, including steel pipe post, horizontal horizontal-associate and facade tiltedly join；Steel pipe post both ends side wall is equipped with A gusset piece, single or more of the steel pipe post is vertically arranged side by side and is overlapped mutually connection again, top, lower part pass through A gusset piece connection A connecting cleat group to the steel pipe post between any two, and the A connecting cleat group connects horizontal horizontal-associate；It is equipped with facade between the horizontal horizontal-associate two is parallel tiltedly to join, the facade tiltedly joins the A gusset piece that one end passes through B connecting cleat group joint steel pipe column top, and the other end passes through the A gusset piece of B connecting cleat group joint steel pipe column lower part；With the construction method of steel pipe support structure described in its.The present invention can adjust the arranged direction of steel pipe support column and adapt to the in-situ beam casting of different across footpaths, different radii from pier intercolumnar distance；The features such as standardized structural can be formed and save construction cost.
Description
Technical field
The present invention relates to a kind of technical field of Cast-in-situ Beam bracket, specially a kind of substitute in the construction of Cast-in-situ Beam is passed
The Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure of the full hall formula steel pipe scaffold of system or welding steel pipe holder as support
And construction method.
Background technique
As the highway infrastructures in China flourish, bridge is increasing in the ratio wherein accounted for, and on bridge
Cage structure is more and more using the form of Cast-in-situ Beam.
The traditional construction method of Cast-in-situ Beam is using full hall formula steel pipe scaffold or welding steel pipe holder as support
It constructs.In-situ beam casting is carried out using full hall formula steel pipe scaffold and easily occurs setting up lack of standardization, bracket appearance is in disorder；Operation
Personnel hold Long heavy rod part and manually up set up scaffold paragraph by paragraph, and large labor intensity, easily cause tired operation are easy to happen rod piece even
Personnel fall accident；Tall and big full framing takes that tear the time open long, has larger impact to construction speed；It is particularly in the branch of steep slope
Frame need to face large area and excavate massif, as scaffold basis, seriously destroy stability of the hill, and cost is quite high.Using
Welding steel pipe holder carries out in-situ beam casting, and every steel pipe post, horizontal-associate and oblique connection are required to cut and weld at the scene, be accounted for
With too many human resources, cutting welding and the equipment machine-team such as lifting, it is long to set up the time, influences construction speed；Every steel pipe connecting
Connect place will site welding, need to set up too many ladder and welding platform during setting up；Due to being site welding, this
Resulting in many places must be welded by the way of vertical position welding and overhead welding, and welding procedure is difficult, while weldquality is difficult to ensure
Card, the quality for eventually leading to steel pipe support cannot effectively guarantee；In addition, being removed using welding steel pipe holder steel pipe
It is direct gas flame cuttiug in journey, cutting will cause steel tube head injustice and the damage of steel pipe crust, when such as next building site reuses,
Danger source is just buried, safety and quality cannot be guaranteed, so its reusable number is few, need to be continuously replenished steel pipe
Non-serviceable steel pipe is constantly discarded simultaneously, and construction cost is high and is unfavorable for environmental protection.
In-situ beam casting in view of traditional full hall formula steel pipe scaffold of use or welding steel pipe holder as support
Method there are the shortcomings that, develop it is a kind of completely new be convenient to mount and dismount, the assembled Large Diameter Pipeline steel pipe branch of construction standard, construction safety
Frame is of great significance.
The Chinese patent literature in relation to steel pipe support is retrieved, is now enumerated some as follows:
1, Chinese patent<application number>201720060879.8<utility model title>is used for the dress of cast-in-place concrete construction of bridge
With formula steel pipe support<summary>, the utility model relates to a kind of assembled steel pipe holder for cast-in-place concrete construction of bridge, packets
The stull and multiple node connectors that more vertically arranged columns and Duo Gen are laterally arranged are included, each node connector sets one
Vertical column connecting piece, column connecting piece main body are a steel pipes equal with column diameter, and both ends are welded with column company
Acting flange；Middle part outside column connecting piece, is symmetrically arranged with 4 stull connectors vertical with column connecting piece, stull
The main body of connector is a steel pipe equal with stull diameter, and a stull connecting flange is welded in each end；The two of each column
End is equipped with column connecting flange, and is connected with by column connecting flange with column connecting piece；The both ends of every stull are set
There is stull connecting flange, and is connected with by stull connecting flange and stull connector.
2, the cast-in-place boom support installation of Chinese patent<application number>201721167064.6<utility model title>a kind of bridge
A kind of bridge Cast-in-situ Beam rack mounting structure of structure<summary>, including pilot hole and guide post；The setting of described device body bottom portion
Ordered arrangement has support seat board, and supports and be connected by connecting plate between seat board；The support seat board top center is equal
Fixed support column is installed by bolt, and fixed support column intermediate circumference circular array shows connector sleeve cylinder everywhere；The connection
Connecting rod is equipped with by bolt between sleeve, and limited support column is equipped with by bolt at the top of fixed support column；Institute
It states limited support column top center and offers limit hole, and be mounted on support transverse slat at the top of limited support column left and right directions.
Summary of the invention
The purpose of the present invention is being in view of the drawbacks of the prior art, and provide a kind of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe
Supporting structure and construction method build process by assembled Large Diameter Pipeline steel pipe support structure optimization bracket, improve construction safety
Property, construction efficiency and construction quality, while realizing the recycling of material, save the cost is good for the environment.Especially suitable for existing
Beam construction is poured, other architecture constructions for needing supporting support is also applied for, is alternatively arranged as the bracket of operation platform.
In order to realize aforementioned present invention purpose, used technical solution are as follows:
A kind of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure, including steel pipe post, horizontal horizontal-associate and facade tiltedly join；The steel
Tube column both ends side wall is equipped with A gusset piece, the steel pipe post single or more vertical company of being overlapped mutually again that is arranged side by side
It connects, top, lower part pass through A gusset piece connection A connecting cleat group, the A connecting cleat group to the steel pipe post between any two
Connect horizontal horizontal-associate；It is equipped with facade between the horizontal horizontal-associate two is parallel tiltedly to join, the facade tiltedly joins one end and passes through B connecting cleat
The A gusset piece on group joint steel pipe column top, the other end pass through the A gusset piece of B connecting cleat group joint steel pipe column lower part.
Preferably, the A connection board ends are equipped with protective plate, and protective plate, which can couple board ends to A, to be enhanced by masterpiece
With, and can play the role of carrying out location and installation to connecting cleat group, it can effectively ensure A gusset piece and steel pipe post stable connection
Securely, and A gusset piece can be prevented by deformation when colliding, it is ensured that with horizontal horizontal-associate installation accuracy.
Preferably, the A connecting cleat group includes two pieces of A connecting cleats, takes high-strength bolt between the A connecting cleat
Connection, the shape of A connecting cleat can be rectangular；Two pieces of two pieces of A connecting cleats are taken to be combined oblique with horizontal horizontal-associate and level
Connection connection, can the horizontal horizontal-associate of effective protection and horizontal tiltedly connection, avoid horizontal horizontal-associate and horizontal tiltedly connection in use too fast
Abrasion, prolongs the service life, moreover, can guarantee junction stress equalization.
Preferably, the B connecting cleat group includes two pieces of B connecting cleats, takes high-strength bolt between the B connecting cleat
Connection, the shape of B connecting cleat are diamond shape, convenient can carry out corresponding rapid abutting joint with facade horizontal-associate and install.
Preferably, its upper section portion lateral wall is equipped with B gusset piece, B when the steel pipe post is steel pipe support structural top
Connection board ends also are provided with protective plate, and the B gusset piece connects A connecting cleat group, and A connecting cleat group connection both ends are equipped with
The oblique connection of the level of C gusset piece, the horizontal tiltedly connection be straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangular steel pipe,
It is any in rectangular steel tube, channel steel, I-steel, angle steel, H profile steel, T-steel or L-type steel to be processed into.
Preferably, the steel pipe post both ends of the surface are equipped with flange part, set between the flange part and steel pipe post side wall
There is stiffener plate, stiffener plate can carry out the effect of enhancing stress to flange part and steel pipe post and prevent from transporting or carry
Flange part is by collision deformation in the process；And the flange part shape is round, circular ring shape or rectangular；A upper steel pipe post
End flanges part connect with next flange part by high-strength bolt to increase vertical height.
Preferably, the steel pipe post is straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangle steel
It is any in pipe or rectangular steel tube to be made.
Preferably, the facade tiltedly joins both ends equipped with D gusset piece.
Preferably, it is straight seam welded steel pipe, spiral welded steel pipe, seamless steel that the horizontal horizontal-associate and facade, which tiltedly join,
It is any in pipe, rectangular steel pipe, rectangular steel tube, channel steel, I-steel, angle steel, H profile steel, T-steel or L-type steel to be processed into.
Preferably, described its construction method of steel pipe support structure the following steps are included:
(1) according to span of bridge, sweep, in length and breadth the parameters situation such as slope, on the basis of assembled large steel pipe, by adjusting
The arranged direction of steel pipe support column and the in-situ beam casting that different across footpaths, different radii are adapted to from pier intercolumnar distance, bracket
Column is connected with pier stud.Determine major steel pipe post position and pier stud distance, the data such as basic elevation, adjustable steel length of tube；
(2) press drawing processing component, be processed into steel pipe post, horizontal horizontal-associate, facade tiltedly join, it is horizontal tiltedly join, A connecting cleat and
B connecting cleat, and it is transported to construction site；
(3) pile foundation or Extended chemotherapy are carried out by steel pipe post plan-position, elevation in advance in construction site, and pre- by absolute altitude is calculated
Bury the adjustable height steel pipe with flange part；
(4) it is assisted, four steel pipe posts is tiltedly joined with horizontal horizontal-associate, facade, A connecting cleat using hoisting machinery at the construction field (site)
Group and B connecting cleat group fasten to form a firm single-unit bracket by pin joint or bolt-connection；
(5) assembled good single-unit bracket is lifted to predetermined pile No. one by one, uses bolt-connection with pre-buried good steel pipe, even
It is reliable to connect fastening.It sets up safety climbing ladder and sets up workbench on the horizontal horizontal-associate of mounted single-unit bracket, it is adjacent
Horizontal horizontal-associate is installed between single-unit bracket and facade tiltedly joins；
(6) steel pipe support structure successively is installed upwards until designed elevation by step；
(7) transverse and longitudinal distribution beam, full hall formula steel pipe scaffold, steel pipe distribution beam, template are installed upwards in turn, and bound steel
Muscle, prestressed pipe；
(8) Cast-in-situ Beam pours, and the cast-in-situ box girder for the complete design height that can once construct divides big cast-in-situ box girder from bottom to top
Section construction；
(9) after concrete strength reaches strength of mould stripping, form removal and the support construction on steel pipe support structure；
(10) remove steel pipe support structure, by tear open frame program should abide by first prop up tear open afterwards, rear branch is first torn open, from top to bottom principle is complete section by section
At dismounting work；
(11) steel pipe post, horizontal horizontal-associate, facade are tiltedly joined, the classification of A connecting cleat, B connecting cleat, pin or bolt is transported to
It is next to use building site, it temporarily transports the classification of stacking field back when not in use and is under lock and key.
The present invention has substantive distinguishing features outstanding and significant progress are as follows:
1, the arranged direction of the adjustable steel pipe support column of the present invention and different across footpaths, different radii are adapted to from pier intercolumnar distance
In-situ beam casting, while bracket upright post of the present invention is connected with pier stud, is suitable for the bridge type on different transverse and longitudinal slopes.Expire with traditional
The construction of hall formula steel pipe scaffold or welding steel steel pipe support support Cast-in-situ Beam is compared, and the present invention can form standardization knot
Structure uses simple, quick, working security height；It is reusable, construction cost is saved, environmental protection is conducive to；Applicability
Height can apply to in-situ beam casting, can also apply to other architecture constructions for needing supporting support, apply in addition, can also be used as
The bracket of work platform.
2, Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure and its construction method of the invention, using steel pipe post as
Stress main body is provided with horizontal horizontal-associate between each section steel pipe post of same level height and facade tiltedly joins, and top layer is additionally provided with
Horizontal brace ultimately forms the in-situ beam casting frame support structure for consolidating safety, is conducive to improve in-situ beam casting quality.
3, Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure and its construction method of the invention, each pile No. steel pipe post are logical
It crosses to be bolted and is assembled to absolute altitude；Horizontal horizontal-associate, facade tiltedly joins, horizontal tiltedly connection crosses connecting cleat using high-strength bolt and steel pipe
Column couples, and builds dismounting and standardizes, is quick, efficiently, occupies less manpower and equipment machine-team, is conducive to quickening Cast-in-situ Beam and applies
Work progress.
4, horizontal horizontal-associate in the present invention, facade tiltedly joins, the gusset piece of the horizontal gusset piece and steel pipe post tiltedly joined is using double
Side connecting cleat is coupled using high-strength bolt fastening again after clamping, rather than uses conventional overlap joint connection, ensure that level
Horizontal-associate, facade tiltedly joins, horizontal tiltedly connection stress acts on the center line of steel pipe post, and overall stability is good.
5, each component presses drawing standardization processing and fabricating in the present invention, and any same item is all interchangeable, assembled in situ peace
Any selection, adjustment, repair need not be carried out when dress, so that assembly dismantling operation is simple, while requiring assembler low, assembly
It is high-efficient.
6, each component of the invention is reusable, is conducive to the reduction of construction cost, is good for the environment simultaneously.Such as component
When damage or next building site demand increase, it can be supplemented by drawing processing and fabricating, it is revolving good.
7, each component of the invention transport back when not in use stack field classification be under lock and key, unit type, specification, quantity compared with
It is few, it conveniently checks, needs to use directly on-demand to transport, fast response time if any building site.
Detailed description of the invention
Fig. 1 is the schematic perspective view of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure of the present invention；
Fig. 2 is the schematic perspective view of steel pipe post；
Fig. 3 is the structural schematic diagram of horizontal horizontal-associate；
Fig. 4 is the structural schematic diagram that facade tiltedly joins；
Fig. 5 is the horizontal structural schematic diagram tiltedly joined；
Fig. 6 is the structural schematic diagram that facade tiltedly joins the connecting cleat connecting with column；
Fig. 7 is horizontal-associate and the horizontal structural schematic diagram for tiltedly joining the connecting cleat connecting with column；
Fig. 8 is the installation site structural schematic diagram of A connecting cleat；
Fig. 9 is the installation site structural schematic diagram of B connecting cleat；
Serial number and component names in figure are as follows: 1- steel pipe post, the horizontal horizontal-associate of 2-, 3- facade tiltedly join, and the horizontal tiltedly connection of 4-, 5-A connects
Fishplate, 6- flange part, 7- stiffener plate, 8-A gusset piece, 9-B gusset piece, 10- protective plate, 11-C gusset piece, 12-D connection
Plate, 13-B connecting cleat.
Specific embodiment
Below in conjunction with the embodiment of the present invention, invention is further described in detail.
Referring to shown in Fig. 1 to 9, a kind of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure, including it is steel pipe post 1, horizontal
Horizontal-associate 2 and facade tiltedly join 3；The 1 both ends side wall of steel pipe post is equipped with A gusset piece 8, and the steel pipe post 1 is single or more
Root is vertically arranged side by side and is overlapped mutually connection again, and top, lower part pass through the connection of A gusset piece 8 to the steel pipe post 1 between any two
A connecting cleat group, the A connecting cleat group connect horizontal horizontal-associate 2；Facade is equipped between 2 liang of the horizontal horizontal-associate is parallel tiltedly to join
3, the facade tiltedly joins the A gusset piece 8 that 3 one end pass through 1 top of B connecting cleat group joint steel pipe column, and the other end is connected by B
The A gusset piece 8 of 1 lower part of fishplate group joint steel pipe column.
The facade tiltedly joins 3 both ends equipped with D gusset piece 12, and the both ends of the horizontal horizontal-associate 2 and horizontal tiltedly connection 4 are equipped with C
Gusset piece 11, and D gusset piece 12, C gusset piece 11 can correspond to and Fast Installation facade facilitated tiltedly to join 3, horizontal horizontal-associate 2 and horizontal tiltedly connection
4 in place；C gusset piece 11 and A connecting cleat group is attached, and D gusset piece 12 is connect with B connecting cleat group, can be effectively ensured whole
Body structure stress is stablized, moreover, larger integrally-built load-bearing capacity can be promoted, guarantees that work progress is safe and reliable.
8 both ends of A gusset piece are equipped with protective plate 10, and protective plate 10 connects the outer wall of A gusset piece 8 and steel pipe post 1
It is firm to connect.
The A connecting cleat group includes two pieces of A connecting cleats 5, takes high-strength bolt to connect between the A connecting cleat 5.
The B connecting cleat group includes two pieces of B connecting cleats 13, takes high-strength bolt to connect between the B connecting cleat 13
It connects.
Its upper section portion lateral wall is equipped with B gusset piece 9, the B connection when steel pipe post 1 is steel pipe support structural top
Fishplate bar 9 connects A connecting cleat group, and A connecting cleat group connection both ends are equipped with the oblique connection 4 of level of C gusset piece 11, the level
Tiltedly connection 4 for straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangular steel pipe, rectangular steel tube, channel steel, I-steel, angle steel,
It is any in H profile steel, T-steel or L-type steel to be processed into.
1 both ends of the surface of steel pipe post are equipped with flange part 6, are equipped with and add between 1 side wall of the flange part 6 and steel pipe post
Strengthening tendons plate 7；And 6 shape of flange part is round, circular ring shape or rectangular；Flange part 6 facilitates the company of superposition between steel pipe post 1
It connects, connection type is high-strength bolt connection.
The steel pipe post 1 is straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangular steel pipe or side
It is any in shape steel pipe to be made.
It is straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangle that the horizontal horizontal-associate 2 and facade, which tiltedly join 3,
It is any in steel pipe, rectangular steel tube, channel steel, I-steel, angle steel, H profile steel, T-steel or L-type steel to be processed into.
Described its construction method of steel pipe support structure the following steps are included:
(1) drawing processing component is pressed, steel pipe post 1, horizontal horizontal-associate 2, facade is processed into and tiltedly joins 3, horizontal tiltedly connection 4, A connection folder
Plate 5 and B connecting cleat 13, and it is transported to construction site；
(2) construction site is laid a solid foundation by 1 pile No. of steel pipe post in advance, and the steel pipe for being embedded with flange part in advance by absolute altitude is calculated；
(3) it is assisted at the construction field (site) using hoisting machinery, four steel pipe posts 1 is tiltedly joined into 3, A connection with horizontal horizontal-associate 2, facade
Clamping plate group and B connecting cleat group fasten to form a firm single-unit bracket by pin joint or bolt-connection；
(4) assembled good single-unit bracket is lifted to predetermined pile No. one by one, uses bolt-connection with pre-buried good steel pipe, even
It is reliable to connect fastening.It sets up safety climbing ladder and sets up workbench on the horizontal horizontal-associate 2 of mounted single-unit bracket, it is adjacent
Horizontal horizontal-associate 2 is installed between single-unit bracket and facade tiltedly joins 3；
(5) steel pipe support structure successively is installed upwards until designed elevation by step 4；
(6) transverse and longitudinal distribution beam, full hall formula steel pipe scaffold, steel pipe distribution beam, template are installed upwards in turn, and bound steel
Muscle, prestressed pipe；
(7) Cast-in-situ Beam pours, and the cast-in-situ box girder for the complete design height that can once construct divides big cast-in-situ box girder from bottom to top
Section construction；
(8) after concrete strength reaches strength of mould stripping, form removal and the support construction on steel pipe support structure；
(9) remove steel pipe support structure, by tear open frame program should abide by first prop up tear open afterwards, rear branch is first torn open, from top to bottom principle is complete section by section
At dismounting work；
(10) steel pipe post 1, horizontal horizontal-associate 2, facade are tiltedly joined 3, A connecting cleat 5, B connecting cleat 13, pin or bolt to classify
It is transported to next using building site, temporarily transports back when not in use and stack field classification and be under lock and key.
Case study on implementation 1:
Certain bridge cast-in-situ box-beam is because of the big rise and fall of topography, the gradient are steeper, and bracket scaffolding height is more than 30 meters, conventional foot hand
Frame stability is difficult to meet construction requirement, and welding steel pipe holder is more demanding to worker or bracket can't meet the quality requirement, and adopts
With a kind of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure of the invention and its construction method, be particularly suitable for support height compared with
Height, while it being suitable for by way of taking adjusting bracket steel pipe and pier intercolumnar distance the in-situ beam casting of different across footpath bridges,
Bracket sets up that speed is fast, and has high construction versatility, can adapt to various bad working environments, and entire support stability is good, peace
Full performance is high, and safety accident does not occur.
Case study on implementation 2:
Certain bridge is cast-in-situ box girder, the high 30~40m of pier, in cast-in-situ box girder using tube and couple scaffold as scaffold, because
Bracket overall collapse part collapses, and causes 250,000 yuan of direct economic loss, and analysis reason is that construction bracket structure type is unreasonable,
The tube and couple scaffold of use increases with height, and stability starts to reduce, more than the yield limit of steel, so as to cause branch
Frame overall structure is destroyed.Using a kind of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure of the invention and its construction method, benefit
The characteristics of can bearing bigger load with Large Diameter Pipeline steel pipe, reasonable Arrangement steel pipe post are enough using security insurance coefficient
All parts are bolted, and each bolt requires that fastening is reliable, entire steel pipe support is firm, and security performance is high, cut-off
So far, the Cast-in-situ Beam that construction is completed does not occur quality, safety problem.
The above are wherein specific implementations of the invention, and the description thereof is more specific and detailed, but can not therefore manage
Solution is limitation of the scope of the invention.It should be pointed out that for those of ordinary skill in the art, not departing from this hair
Under the premise of bright design, various modifications and improvements can be made, these obvious alternative forms belong to of the invention
Protection scope.
Claims (10)
1. a kind of Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure, it is characterised in that: including steel pipe post (1), horizontal horizontal-associate
(2) and facade tiltedly joins (3)；Steel pipe post (1) both ends side wall is equipped with A gusset piece (8), and the steel pipe post (1) is single
Root or more vertical are arranged side by side are overlapped mutually connection again, and top, lower part pass through A connection to the steel pipe post (1) between any two
Fishplate bar (8) connects A connecting cleat group, and the A connecting cleat group connects horizontal horizontal-associate (2)；The horizontal horizontal-associate (2) two it is parallel it
Between be equipped with facade and tiltedly join (3), the facade tiltedly join (3) one end and passes through the A on B connecting cleat group joint steel pipe column (1) top connection
Fishplate bar (8), the other end pass through the A gusset piece (8) of B connecting cleat group joint steel pipe column (1) lower part.
2. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, it is characterised in that: the A connection
Plate (8) both ends are equipped with protective plate (10).
3. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, it is characterised in that: the A connection
Clamping plate group includes two pieces of A connecting cleats (5), takes high-strength bolt to connect between the A connecting cleat (5).
4. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, it is characterised in that: the B connection
Clamping plate group includes two pieces of B connecting cleats (13), takes high-strength bolt to connect between the B connecting cleat (13).
5. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, it is characterised in that: the steel pipe is vertical
Its upper section portion lateral wall is equipped with B gusset piece (9) when column (1) is steel pipe support structural top, and B gusset piece (9) the connection A connects
Fishplate group, the level that A connecting cleat group connection both ends are equipped with C gusset piece (11) tiltedly join (4), the horizontal tiltedly connection (4)
For straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangular steel pipe, rectangular steel tube, channel steel, I-steel, angle steel, H-type
It is any in steel, T-steel or L-type steel to be processed into.
6. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, it is characterised in that: the steel pipe is vertical
Column (1) both ends of the surface are equipped with flange part (6), are equipped with stiffener plate (7) between the flange part (6) and steel pipe post (1) side wall；
And flange part (6) shape is round, circular ring shape or rectangular.
7. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure described according to claim 1 or 5 or 6, it is characterised in that: described
The steel pipe post (1) is to appoint in straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangular steel pipe or rectangular steel tube
One kind is made.
8. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, it is characterised in that: the facade is oblique
Join (3) both ends and is equipped with D gusset piece (12).
9. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, it is characterised in that: the level
Horizontal-associate (2) and facade tiltedly join (3) be straight seam welded steel pipe, spiral welded steel pipe, seamless steel pipe, rectangular steel pipe, rectangular steel tube,
It is any in channel steel, I-steel, angle steel, H profile steel, T-steel or L-type steel to be processed into.
10. Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure according to claim 1, which is characterized in that the steel pipe
Its construction method of supporting structure the following steps are included:
(1) drawing processing component is pressed, steel pipe post (1), horizontal horizontal-associate (2), facade is processed into and tiltedly joins (3), horizontal tiltedly connection
(4), A connecting cleat (5) and B connecting cleat (13), and it is transported to construction site；
(2) construction site is laid a solid foundation by steel pipe post (1) pile No. in advance, and the steel for being embedded with flange part in advance by absolute altitude is calculated
Pipe；
(3) assisted at the construction field (site) using hoisting machinery, by four steel pipe posts (1) with horizontal horizontal-associate (2), facade tiltedly join (3),
A connecting cleat group and B connecting cleat group fasten to form a firm single-unit bracket by pin joint or bolt-connection；
(4) assembled good single-unit bracket is lifted to predetermined pile No. one by one, uses bolt-connection with pre-buried good steel pipe, even
It is reliable to connect fastening；
It sets up safety climbing ladder and sets up workbench, adjacent single-unit on the horizontal horizontal-associate (2) of mounted single-unit bracket
Horizontal horizontal-associate (2) is installed between bracket and facade tiltedly joins (3)；
(5) steel pipe support structure successively is installed upwards until designed elevation by step (4)；
(6) transverse and longitudinal distribution beam, full hall formula steel pipe scaffold, steel pipe distribution beam, template are installed upwards in turn, and bound steel
Muscle, prestressed pipe；
(7) Cast-in-situ Beam pours, and the cast-in-situ box girder for the complete design height that can once construct divides big cast-in-situ box girder from bottom to top
Section construction；
(8) after concrete strength reaches strength of mould stripping, form removal and the support construction on steel pipe support structure；
(9) remove steel pipe support structure, by tear open frame program should abide by first prop up tear open afterwards, rear branch is first torn open, from top to bottom principle is complete section by section
At dismounting work；
(10) by steel pipe post (1), horizontal horizontal-associate (2), facade tiltedly join (3), A connecting cleat (5), B connecting cleat (13), pin or
The classification of person's bolt is transported to next using building site, temporarily transports back when not in use and stacks field classification and be under lock and key.
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| CN201810523680.3A CN109252445A (en) | 2018-05-28 | 2018-05-28 | Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure and its construction method |
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| CN201810523680.3A CN109252445A (en) | 2018-05-28 | 2018-05-28 | Cast-in-situ Beam assembled Large Diameter Pipeline steel pipe support structure and its construction method |
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| CN110040632A (en) * | 2019-04-01 | 2019-07-23 | 杭州通达集团有限公司 | A kind of segmental hoisting construction method of large span section steel beam |
| CN110409320A (en) * | 2019-08-21 | 2019-11-05 | 广西路建工程集团有限公司 | A kind of the concrete cast-in-situ bracket and its construction method of adjustable slope |
| CN110593113A (en) * | 2019-09-26 | 2019-12-20 | 南昌大学 | Portable telescopic compression-resistant bending-resistant support and mounting method |
| CN111395850A (en) * | 2020-03-31 | 2020-07-10 | 广西路桥工程集团有限公司 | Assembled tower frame for cable hoisting system and erection method |
| CN112301896A (en) * | 2020-11-11 | 2021-02-02 | 中铁二十五局集团第五工程有限公司 | Construction process of box girder support system |
| CN114412217A (en) * | 2022-03-08 | 2022-04-29 | 中国建筑第六工程局有限公司 | Self-assembly falling-proof shed for bridge demolition and assembly and use method thereof |
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