CN106087754A - The integral bracket construction method of bent cap - Google Patents
The integral bracket construction method of bent cap Download PDFInfo
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- CN106087754A CN106087754A CN201610593327.3A CN201610593327A CN106087754A CN 106087754 A CN106087754 A CN 106087754A CN 201610593327 A CN201610593327 A CN 201610593327A CN 106087754 A CN106087754 A CN 106087754A
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- integral bracket
- steel
- pier stud
- bracket
- integral
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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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- Engineering & Computer Science (AREA)
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- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses the integral bracket construction method of a kind of bent cap, including: A-frame and hoisting mechanism are installed on pier stud；Lay railway sleepers on ground and ground is flattened；Connect into integral bracket with I-steel and square steel, then integral bracket is placed on sleeper；Integral bracket is placed corresponding goods and materials, and uses lift mechanism lifts integral bracket；Confirming that the performance of integral bracket lifting process is up to standard, then integral bracket is put into operation；It is fixed on promoting later integral bracket on the corresponding position of pier stud；Confirm the safety of the integral bracket being fixed on pier stud, then the A-frame on pier stud and hoisting mechanism are removed；Pier stud is constructed；After Coping Construction, integral bracket is dropped on ground；Repeat the above steps carries out the construction of next bent cap.The present invention overcomes the problem that the difficulty of construction occurred by conventional method is big, cost is high, it is provided that a kind of notable reduction of erection time, security performance are high, the integral bracket construction method of the bent cap of environmental protection and energy saving.
Description
Technical field
The present invention relates to technical field of building construction, specifically refer to the integral bracket construction method of a kind of bent cap.
Background technology
Bent cap refers to the load for supporting, be distributed and transmit superstructure, at the crossbeam of pile bent pier top setting, again
Claiming cap, at bridge pier or the crossbeam that arranges armored concrete or rare-reinforcement concrete on campshed, the construction to bent cap is conventional at present
Method mainly, between two pier stud, build scaffold or construct in large scale computer mechanical arm, both approaches is applied to
The engineering that pier stud is high, the duration is tight, can cause the problem that difficulty of construction is big, cost is high, therefore work out adapt actual with engineering
Construction method of bent cap the most simple to operate, the new construction method of the bent cap of low cost is the most eager.
Summary of the invention
When it is an object of the invention to overcome use conventional method bent cap high to pier stud, that the duration is tight to construct, occur executing
The problem that work difficulty is big, cost is high, it is provided that a kind of notable reduction of erection time, security performance the overall of bent cap high, environmental protection and energy saving hold in the palm
Frame construction method.
The present invention is achieved through the following technical solutions:
The integral bracket construction method of bent cap, comprises the following steps:
(1) A-frame and hoisting mechanism are installed on pier stud；
(2) lay railway sleepers on ground；
(3) make integral bracket, then integral bracket is placed on sleeper；
(4) in integral bracket, place corresponding goods and materials, and use lift mechanism lifts integral bracket；
(5) it is fixed on promoting later integral bracket on the corresponding position of pier stud；
(6) confirm the safety of the integral bracket being fixed on pier stud, then the A-frame on pier stud and hoisting mechanism are torn open
Remove；
(7), after having constructed on pier stud, integral bracket is dropped on ground；
(8) repeat the above steps carries out the construction of next bent cap.
Said method uses integral bracket, needs the instrument used to be placed in integral bracket Coping Construction, then will
Integral bracket brings up to the corresponding position of pier stud and fixes, and the personnel of site operation are enterprising in the integral bracket being placed with construction tool
Row Coping Construction, and the Coping Construction of routine is to build scaffold between two pier studs or construct in large scale computer mechanical arm,
Wherein building scaffold comparatively laborious, progress is slow, and Coping Construction also needs to after completing remove scaffold, and each Coping Construction is just
Build a scaffold, use scaffold big to the method work difficulty of Coping Construction, limit the progress of construction；Large-scale
To Coping Construction on mechanical arm, job location is required higher, it is desirable to traffic convenience, and need the biggest scope of operation, use big
Type mechanically actuated is relatively costly, and owing to big machinery can consume substantial amounts of fuel, so environment be will also result in pollution.For
This, it is necessary to change conventional construction method of bent cap, use the present invention can overcome conventional deficiency；For site operation personnel's eminence
Platform and the transport construction tool of construction make integral bracket, can make multiple integral bracket work simultaneously for the reduction of erection time simultaneously
Make；For promoting integral bracket, hoisting mechanism is installed on pier stud；For whole lifting and the safety of the process of construction, ground is whole
Put down and spread the sleeper for placing integral bracket, it is ensured that ground construction equipment is whole when being placed in integral bracket when lifting
The stress balance at body bracket two ends does not haves crooked；Integral bracket is fixed on pier stud and is easy on the position of Coping Construction,
After confirming safety, remove hoisting mechanism and carry out Coping Construction.
Thus, the present invention by hoisting mechanism to be loaded with construction equipment integral bracket lifting and will promote after whole
Body bracket is fixing on pier stud, and workmen is being fixed on construction in integral bracket on pier stud, instead of Coping Construction routine
Build scaffold and the method using heavy mechanical equipment, reduce the purpose of difficulty of construction and cost, significantly shorten work
Phase, improve safety and there is the feature of environmental protection and energy saving.
Said method is applicable to the elevated bridge Coping Construction that the duration is tight, pier stud is high；Being applicable to heavy mechanical equipment cannot
The bridge coping construction in the mountain area entered, the present invention more can show its great superiority.
The principle of above-mentioned work is: at the scene I-steel and square steel are connected into integral bracket, installs herringbone on pier stud
Gin pole also installs hoisting mechanism on A-frame, in order to ensure safety, needs trail run, first executing before putting into operation
The instrument of work is placed in integral bracket, re-uses hoisting mechanism and integral bracket is done lifting test, confirms to carry in lifting process
Rise the factor of the safety such as the stability of mechanism's work and the stability of integral bracket structure, the work of integral bracket to be confirmed
Word steel is indeformable, when after the standard that the work confirming each parts can reach safe, just can put into operation；Later whole by promoting
Body bracket is fixed on pier stud and is easy to the personnel of site operation and carries out, on the people position of Coping Construction, then checking the entirety fixed
There is not potential safety hazard in bracket, the I-steel of integral bracket to be confirmed is indeformable, then by A-frame and elevator
Structure is removed, and exposes construction part, can carry out Coping Construction, after Coping Construction engineering, will carry construction on pier stud
The integral bracket of apparatus drops to i.e. complete on ground the construction of a bent cap, and make multiple integral bracket can be the most right simultaneously
Multiple Coping Constructions, and construct complete after, dropping to ground integral bracket can move to again under another pier stud, weight
Multiple above-mentioned step can then complete the construction of next bent cap.
Further, in described step (1), the installation of A-frame and hoisting mechanism comprises the following steps:
(1.1) two A-frames are made at pier stud top；
(1.2) assembly pulley is installed on each gin pole top；
(1.3) respectively set up in pier stud both sides one for the 5t hoist engine lifting by crane integral bracket,.
Further, described A-frame uses No. 10 I-steel, and with 10 × 10 angle steel to described No. 10 I-steel
Reinforce.
Further, the manufacture method of integral bracket in described step (3), comprise the following steps:
(3.1) choose two No. 45 I-steel and four square steel connect into an integral bracket；
(3.2) channel-section steel the other side's steel is installed on square steel to reinforce；
(3.3) English truss is welded in the outside of I-steel；
(3.4) on English truss, springboard is laid, as work platforms；
(3.5) outside truss, steel pipe manufacturing safety protective fence is used.
(3.6) inner side at I-steel arranges roller, and to prevent bracket in lifting process from colliding with pier stud, and roller can
To resist the work platforms torsion to I-steel.
Further, before I-steel is connected with square steel in step (3.1), confirm that I-steel is intact later to I-steel
Carry out repair welding reinforcement.
Further, in described step (5), the detailed process that integral bracket is fixed on pier stud, comprise the following steps:
(5.1) relevant position at pier stud arranges preformed hole；
(5.2), after integral bracket promotes and puts in place, rod iron is inserted in the preformed hole of pier stud；
(5.3) integral bracket is placed on rod iron it is fixed；
(5.4) confirm that the I-steel of integral bracket is not deformed, then complete integral bracket fixing on pier stud.
Further, in described step (6), confirm that the step of the safety of the integral bracket being fixed on pier stud is:
(6.1) adjust the position of roller, make integral bracket and pier stud remain a determining deviation；
(6.2) integral bracket both sides counterweight uniformly, and must connect integral bracket left and right sides platform when promoting by guide chain, anti-
Only carrier tilt in lifting process；
(6.3) A-frame fixation is confirmed；
(6.4) guarantee that the speed of 2 hoist engines adapts so that bracket steadily rises；
(6.5) guarantee that I-steel is not deformed, and reinforce by safety rope, guide chain.
The present invention compared with prior art, has the advantage that and has the beneficial effect that
Just it is applied to from the point of view of engineering, after using the present invention, obtains economic benefit the most directly or indirectly and society
Benefit.
One, be generally directed to pier shaft height, the duration tightly uses conventional method difficulty of construction big, and the present invention uses and disposably mentions work
Make platform, and be fixed on pier stud the mode for construction, reduce difficulty of construction；
Two, employing due to the fact that the safety measures such as construction operation platform has completed, integrated guard rail put in place,
And the most repeatedly confirming safety mentioning and constructing, this greatly reduces the danger of work high above the ground, also solves template, steel simultaneously
The potential safety hazard that the transport point generation of other article such as muscle comes, significantly reduces the probability of security incident；
Three, use the method building scaffold to need to use substantial amounts of steel and cost of labor high, use integral bracket method to compare foot
Hand cradle method is cost-saved；
Four, the method using big machinery, will first be bulldozed the obstacle of turnover, and the time that not only wastes also wastes manually, also
Using substantial amounts of fuel, the present invention is cost-saved；
Five, bracket cost of manufacture is relatively low, can make many set integral bracket construct multiple bent caps simultaneously, substantially increase work effect
Rate, shortens the construction period, has saved a large amount of indirect cost；
Six, the present invention not only economic benefit is obvious, and social benefit is the most prominent, and the present invention not only reduces during application
Artificial, the consumption of material, machine, and reached energy-conservation purpose.
Detailed description of the invention
Below in conjunction with embodiment, the present invention is described in further detail, but embodiments of the present invention is not limited to this,
Without departing from the idea case in the present invention described above, according to ordinary skill knowledge and customary means, make various replacing
Change and change, all should be included within the scope of the invention.
Embodiment:
Present embodiment discloses the integral bracket construction method of a kind of bent cap, mainly for overcoming use conventional method to pier stud
When bent cap high, that the duration is tight is constructed, the problem that difficulty of construction is big, cost is high occurs, it is provided that a kind of notable reduction of erection time, peace
Full performance is high, the integral bracket construction method of the bent cap of environmental protection and energy saving, and whole construction procedure is as follows:
Pier stud is installed A-frame and hoisting mechanism；Main operating procedure is as follows:
Step a, make two A-frames, A-frame and the fixation of pier stud top at pier stud top with No. 10 I-steel,
And with 10 × 10 angle steel, A-frame is reinforced, when preventing A-frame from working produce deformation；
Step b, it is respectively provided with the assembly pulley of 3 × 3 on each A-frame top；
Step c, respectively set up a 5t hoist engine in pier stud both sides, and hoist engine and assembly pulley connect；
The main operating procedure that lays railway sleepers on ground is as follows:
Step d, the ground using the bull-dozer of 60KW to will be close to pier stud are bulldozed
Step e, lay railway sleepers in the ground after bull-dozer is smooth.
The operating procedure making integral bracket is as follows:
Step f, choose two No. 45 I-steel, confirm that according to GB/T 706-1988 the parameter of two No. 45 I-steel is satisfied by
Following items: highly h is 450mm, a width of b of lower limb is 150mm, waist thickness is 11.5mm, average lower limb thickness t is 18mm, inner arc radius r
For 13.5mm, lower limb end arc radius r1 be 6.8mm, weight 84.42/kg m^-1；
Step g, then No. 45 I-steel are carried out repair welding increase load-bearing intensity；
Step h, four square steel one integral bracket of formation of welding, weldering on two diagonal angles of every square steel on No. 45 I-steel
Connecing ∠ 10mm × 10mm angle steel, square steel is played further booster action by angle steel；
Step i, outside I-steel weld English truss, then on English truss lay springboard as operation platform, springboard
Being 16, specification is 6cm × 6cm × 400cm；
Step j, using steel pipe manufacturing safety protective fence outside truss, safety protective fence can be substantially reduced work high above the ground
Danger, also solves the potential safety hazard in the transport point generation of other article such as template, reinforcing bar simultaneously, significantly reduces security incident
Probability；
Step k, for preventing bracket and pier stud from colliding, and resist work platforms the torsion of No. 45 I-steel of integral bracket made
With, reducing security risk, roller is set inside shaped steel, integral bracket is that roller connects with pier stud slip during promoting
Touch；
The lifting trail run of integral bracket and operation:
Step l, integral bracket is placed on sleeper, and integral bracket is divided into two parts that left and right is identical, in entirety by pier stud
The two ends of bracket place implement for construction and material respectively；
Step m, arrange on the top of pier stud and be used for inserting the preformed hole of reinforcing bar；
Step n, be connected with integral bracket by 4 guide chains, wherein two one end in integral bracket, other two in integral bracket
The other end, guide chain must assure that integral bracket promote during uniform force so that during integral bracket zero load promote
During will not run-off the straight；
Step o, startup hoist engine, allow the integral bracket of load leave ground about 50cm, checks whether integral bracket is to tilt
, if tilt, then adjust integral bracket two ends facility and the position of material, until the uniform integral bracket of counterweight at two ends
No longer tilt；
Step p, guarantee integral bracket two ends stress balance after, with steel wire rope, facility and material are fixed in integral bracket,
Slide during being placed on lifting；
The speed of step q, constantly 2 hoist engines of adjustment so that integral bracket steadily rises, owing to integral bracket is by two volumes
Raise what machine promoted, and two hoist engines are respectively acting on the two ends of integral bracket, do not tilt for integral bracket and have to assist
Mix up the lifting speed of two hoist engines；
Step r, integral bracket is risen to the position of the preformed hole on pier stud top, rod iron is inserted in the preformed hole of pier stud,
Integral bracket falls on rod iron, then integral bracket is fixed on pier stud, and workmen is by the integral bracket fixed
Construct on work platforms；
Step s, in the lifting process of integral bracket, go through and guarantee herein below:
Step t, set the position of roller so that it is each roller is close to pier stud, makes bracket and pier stud remain a determining deviation；
Step u, go through guide chain, A-frame, hoist engine and integral bracket, it is ensured that guide chain stress is up to standard, A-frame is solid
The most firm, hoist engine works well and the most working properly after integral bracket stress, the test run of above-mentioned project then integral bracket up to standard
Row reaches standard；
After step v, integral bracket are fixed on pier stud, it is ensured that rod iron can bear the weight of integral bracket, and fixation, overall
The I-steel of bracket is indeformable.
After step w, trail run reach standard, then enter and put into operation.
In integral bracket, the construction procedure of work platforms is as follows:
Step A, workmen all should before construction safety rope, hard hat required at all times on bolt；
Step B, after integral bracket is fixed on pier stud, it is ensured that integral bracket is the most fixing, and the I-shaped of integral bracket
In the case of steel does not occurs extremely, the A-frame on pier stud and hoisting mechanism are removed, the equipment after dismounting and instrument are put down
Weighing apparatus is placed on the two ends of integral bracket；
Step C, on work platforms, complete bent cap tie up muscle, it should be noted that owing to material and instrument are placed on work platforms
Two ends, so both sides are the most alternately taken taking when, prevent work platforms two ends unbalance stress；
Step D, branching standing template；
Step E, concreting；
Step F, form removable.
Dropping on ground by integral bracket after Coping Construction, then next pier stud is executed by repeat the above steps
Work.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction, every depends on
Any simple modification of being made above example according to the technical spirit of the present invention, equivalent variations, each fall within the protection of the present invention
Within the scope of.
Claims (7)
1. the integral bracket construction method of bent cap, it is characterised in that: comprise the following steps:
(1) A-frame and hoisting mechanism are installed on pier stud；
(2) lay railway sleepers on ground；
(3) make integral bracket, then integral bracket is placed on sleeper；
(4) in integral bracket, place corresponding goods and materials, and use lift mechanism lifts integral bracket；
(5) it is fixed on promoting later integral bracket on the corresponding position of pier stud；
(6) confirm the safety of the integral bracket being fixed on pier stud, then the A-frame on pier stud and hoisting mechanism are torn open
Remove；
(7), after having constructed on pier stud, integral bracket is dropped on ground；
(8) repeat the above steps carries out the construction of next bent cap.
The integral bracket construction method of bent cap the most according to claim 1, it is characterised in that: in described step (1), herringbone
The installation method of gin pole and hoisting mechanism is as follows:
(1.1) two A-frames are made at pier stud top；
(1.2) assembly pulley is installed on each gin pole top；
(1.3) one is respectively set up in pier stud both sides for the 5t hoist engine lifting by crane integral bracket.
The integral bracket construction method of bent cap the most according to claim 2, it is characterised in that: described A-frame uses 10
Number I-steel, and with 10 × 10 angle steel, described No. 10 I-steel are reinforced.
4. according to the integral bracket construction method of the bent cap described in any one of claim 1-3, it is characterised in that: described step
(3) manufacture method of integral bracket in, comprises the following steps:
(3.1) choose two No. 45 I-steel and four square steel connect into an integral bracket；
(3.2) channel-section steel the other side's steel is installed on square steel to reinforce；
(3.3) English truss is welded in the outside of I-steel；
(3.4) on English truss, springboard is laid, as work platforms；
(3.5) outside truss, steel pipe manufacturing safety protective fence is used；
(3.6) inner side at I-steel arranges roller, and to prevent bracket in lifting process from colliding with pier stud, and roller can support
The torsion to I-steel of the anti-work platforms.
The integral bracket construction method of bent cap the most according to claim 4, it is characterised in that: I-shaped in step (3.1)
Before steel is connected with square steel, confirm that I-steel carries out repair welding reinforcement to I-steel after intact.
6. according to the integral bracket construction method of the bent cap described in any one of claim 1-3, it is characterised in that: described step
(5) in, the detailed process that integral bracket is fixed on pier stud, comprise the following steps:
(5.1) relevant position at pier stud arranges preformed hole；
(5.2), after integral bracket promotes and puts in place, rod iron is inserted in the preformed hole of pier stud；
(5.3) integral bracket is placed on rod iron it is fixed；
(5.4) confirm that the I-steel of integral bracket is not deformed, then complete integral bracket fixing on pier stud.
The integral bracket construction method of bent cap the most according to claim 4, it is characterised in that: in described step (6), confirm
The step of the safety of the integral bracket being fixed on pier stud is:
(6.1) adjust the position of roller, make integral bracket and pier stud remain a determining deviation；
(6.2) integral bracket both sides counterweight uniformly, and must connect integral bracket left and right sides platform when promoting by guide chain, anti-
Only carrier tilt in lifting process；
(6.3) A-frame fixation is confirmed；
(6.4) guarantee that the speed of 2 hoist engines adapts so that bracket steadily rises；
(6.5) guarantee that I-steel is not deformed, and reinforce by safety rope, guide chain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593327.3A CN106087754B (en) | 2016-07-26 | 2016-07-26 | The integral bracket construction method of bent cap |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610593327.3A CN106087754B (en) | 2016-07-26 | 2016-07-26 | The integral bracket construction method of bent cap |
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| Publication Number | Publication Date |
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| CN106087754A true CN106087754A (en) | 2016-11-09 |
| CN106087754B CN106087754B (en) | 2018-01-19 |
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| Application Number | Title | Priority Date | Filing Date |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201686938U (en) * | 2010-06-11 | 2010-12-29 | 天津二十冶建设有限公司 | Pier used for bent cap construction |
| CN201990947U (en) * | 2011-01-28 | 2011-09-28 | 龙建路桥股份有限公司 | Overall bracket for capping beam |
| CN203475309U (en) * | 2013-05-24 | 2014-03-12 | 中国五冶集团有限公司 | Bent cap support used in viaduct construction process |
| CN203700969U (en) * | 2014-02-04 | 2014-07-09 | 孙晋举 | Double-hoop triangle bracket for construction of capping beam of single-column pier of highway bridge |
| CN204753389U (en) * | 2015-05-08 | 2015-11-11 | 中铁十五局集团第一工程有限公司 | A connect boots that is used for bent cap construction bracket to be connected with arc end pier |
| CN205329547U (en) * | 2015-11-25 | 2016-06-22 | 中交路桥北方工程有限公司 | Lid corbel frame dismounting device |
-
2016
- 2016-07-26 CN CN201610593327.3A patent/CN106087754B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201686938U (en) * | 2010-06-11 | 2010-12-29 | 天津二十冶建设有限公司 | Pier used for bent cap construction |
| CN201990947U (en) * | 2011-01-28 | 2011-09-28 | 龙建路桥股份有限公司 | Overall bracket for capping beam |
| CN203475309U (en) * | 2013-05-24 | 2014-03-12 | 中国五冶集团有限公司 | Bent cap support used in viaduct construction process |
| CN203700969U (en) * | 2014-02-04 | 2014-07-09 | 孙晋举 | Double-hoop triangle bracket for construction of capping beam of single-column pier of highway bridge |
| CN204753389U (en) * | 2015-05-08 | 2015-11-11 | 中铁十五局集团第一工程有限公司 | A connect boots that is used for bent cap construction bracket to be connected with arc end pier |
| CN205329547U (en) * | 2015-11-25 | 2016-06-22 | 中交路桥北方工程有限公司 | Lid corbel frame dismounting device |
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| Publication number | Publication date |
|---|---|
| CN106087754B (en) | 2018-01-19 |
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