CN105696747A - Construction method for aerial large-span reinforced concrete beam - Google Patents

Construction method for aerial large-span reinforced concrete beam Download PDF

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Publication number
CN105696747A
CN105696747A CN201610078457.3A CN201610078457A CN105696747A CN 105696747 A CN105696747 A CN 105696747A CN 201610078457 A CN201610078457 A CN 201610078457A CN 105696747 A CN105696747 A CN 105696747A
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CN
China
Prior art keywords
construction
steel
reinforced concrete
concrete
span
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.)
Granted
Application number
CN201610078457.3A
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Chinese (zh)
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CN105696747B (en
Inventor
于成江
顾吉海
章慧蓉
崔爱珍
张斌
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tianjin Construction Engineering Co., Ltd. of China Construction Eighth Engineering Bureau
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China Construction Eighth Engineering Division Co Ltd
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Priority to CN201610078457.3A priority Critical patent/CN105696747B/en
Priority to CN201310069678.0A priority patent/CN103114681B/en
Publication of CN105696747A publication Critical patent/CN105696747A/en
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Classifications

    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C3/00Structural elongated elements designed for load-supporting
    • E04C3/02Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces
    • E04C3/20Joists; Girders, trusses, or trusslike structures, e.g. prefabricated; Lintels; Transoms; Braces of concrete or other stone-like material, e.g. with reinforcements or tensioning members
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04CSTRUCTURAL ELEMENTS; BUILDING MATERIALS
    • E04C5/00Reinforcing elements, e.g. for concrete; Auxiliary elements therefor
    • E04C5/01Reinforcing elements of metal, e.g. with non-structural coatings
    • E04C5/06Reinforcing elements of metal, e.g. with non-structural coatings of high bending resistance, i.e. of essentially three-dimensional extent, e.g. lattice girders
    • E04C5/0604Prismatic or cylindrical reinforcement cages composed of longitudinal bars and open or closed stirrup rods
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G13/00Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
    • E04G13/04Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for lintels, beams, or transoms to be encased separately; Special tying or clamping means therefor
    • EFIXED CONSTRUCTIONS
    • E04BUILDING
    • E04GSCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
    • E04G21/00Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work

Abstract

The invention provides a construction method for an aerial large-span reinforced concrete beam. The construction method comprises the steps that the number of structural steel frameworks is calculated, and the structural steel frameworks are welded; hook bolts are arranged at the bottom ends of the structural steel frameworks; a reinforcement cage is installed, and protection layer cushion blocks are fixed to the side faces and the bottom face of the reinforcement cage; beam bottom dies, transverse battens and steel pipe cross arms are installed; beam side dies, vertical battens, steel pipe cross arms and beam top limiting battens are installed; a to-be-poured structure is integrally hoisted in place; concrete is gradually poured in a layering manner, a formwork is removed through a movable hanging type basket, and split bolts and the hook bolts are cut away. According to the construction method for the aerial large-span reinforced concrete beam, the method that assembling of the whole to-be-poured structure is finished on the ground, the to-be-poured structure is hoisted in place, then, concrete is poured, and the formwork is removed is adopted, the obvious characteristic is achieved for aerial large-span beam construction, the construction quality is improved, meanwhile, the stability of the concrete beam is improved, and the safety of construction work is guaranteed.

Description

The construction method of high-altitude long-span reinforced concrete beam
Technical field
The invention belongs to the realm of building construction, refer in particular to the construction method of a kind of high-altitude long-span reinforced concrete beam。
Background technology
Fast development along with building industry, in order to meet the requirement such as function, decorative effect, for buildings or structures, high-altitude long-span reinforced concrete beam is of common occurrence, high-supported formwork in construction has bigger potential safety hazard, it is intended to seek a kind of construction method, it is possible to fundamentally solve the great guardian technique difficult problem that high-supported formwork support system easily collapses。
Summary of the invention
It is an object of the invention to the defect overcome existing for prior art, the construction method of a kind of easy construction, safe and reliable high-altitude long-span reinforced concrete beam is now provided。
The present invention provides the construction method of a kind of high-altitude long-span reinforced concrete beam, comprises the following steps:
The quantity of the calculating type steel skeleton in order to replace original design reinforced beam longitudinal reinforcement and stirrup, solder type steel skeleton, form a space truss system;
HOOK BOLTS is installed in described type steel skeleton bottom, makes described HOOK BOLTS be fastenedly connected with type steel skeleton by fixing nut;
Steel reinforcement cage is installed, at the fixing protective layer cushion block in the side of described steel reinforcement cage and bottom surface;
Mounting rail bed die, horizontal flitch and steel pipe cross-arm, by described HOOK BOLTS reinforcement bed die;
Mounting rail side form, vertical flitch and steel pipe cross-arm, reinforce two side forms by split bolt, and install the spacing flitch of back, complete the assembling treating pouring structure of high-altitude long-span reinforced concrete beam;
By described be completed treat that pouring structure integral hoisting is in place, take interim fixation, strong point position template gap blocked;
It is layered gradation casting concrete according to composite beam construction method, by removable hanging hanging basket form removal after concrete strength meets the requirements, and cuts off split bolt and HOOK BOLTS, complete the construction of high-altitude long-span reinforced concrete beam。
Further improvement is that of the construction method of high-altitude long-span reinforced concrete beam of the present invention: described type steel skeleton corner is respectively equipped with in twice angle steel and angle steel under twice, and described upper angle steel is supported and horizontal corner steel supporting welding by vertical angle steel with lower angle steel。
Further improvement is that of the construction method of high-altitude long-span reinforced concrete beam of the present invention: described steel reinforcement cage includes plural number longitudinal reinforcement and stirrup, and described longitudinal reinforcement is welded on described type steel skeleton, and described stirrup is located on the border of described type steel skeleton。
Further improvement is that of the construction method of high-altitude long-span reinforced concrete beam of the present invention: described split bolt is respectively provided on two sides with a grade mould rod。
Due to the fact that the above technical scheme of employing so that it is have the beneficial effect that
The present invention by completing the whole assembling treating pouring structure on ground, it is carried out hoisted in position, then casting concrete, the method of last form removal, for the construction of high-altitude long-span beam, there is distinguishing feature, both improve construction quality, and guaranteed construction speed and reduce engineering cost, enhanced the steadiness of beams of concrete simultaneously, it is ensured that the safety of construction operation。
Accompanying drawing explanation
Fig. 1 is section steel beam and the reinforcement cage skeleton installation schematic diagram of a kind of high-altitude long-span reinforced concrete beam construction method of the present invention。
Fig. 2 is a kind of high-altitude long-span reinforced concrete beam construction method formwork schematic diagram of the present invention。
Fig. 3 is formwork reinforcement drawing bottom a kind of high-altitude long-span reinforced concrete beam construction method beam of the present invention。
Fig. 4 is a kind of high-altitude long-span reinforced concrete beam construction method split bolt schematic diagram of the present invention。
Detailed description of the invention
For the benefit of the understanding to the structure of the present invention, illustrates below in conjunction with drawings and Examples。
As shown in Figures 1 to 4, the high-altitude long-span reinforced concrete beam of the present invention treat pouring structure, including a type steel skeleton 1, the corner of type steel skeleton 1 be respectively equipped with in twice angle steel 11 with angle steel 13 under twice, upper angle steel 11 supports 12 with lower angle steel 13 by vertical angle steel and welds with horizontal corner steel support 14。
Type steel skeleton 1 is coated with a steel reinforcement cage 2, steel reinforcement cage 2 includes plural number longitudinal reinforcement 21 and stirrup 22, its longitudinal reinforcement 21 is welded on type steel skeleton 1, stirrup 22 is located on the border of type steel skeleton 1, the sidepiece of steel reinforcement cage 2 is fastened with plural number side form 31 by one first stretch-draw assembly, first stretch-draw assembly includes vertical flitch 33, steel pipe cross-arm 43 and split bolt 42, split bolt 42 both sides are provided with a grade mould rod 421, in order to side form 31 is spacing, it is made to obtain lateral register in the fastener cycle to split bolt 42, vertical flitch 33 is resisted against outside side form 31, steel pipe cross-arm 43 is resisted against outside vertical flitch 33, split bolt 42 is arranged in side form 31, vertical flitch 33 and steel pipe cross-arm 43, and coordinate butterfly fastener 412 and the double nut 413 stretch-draw fastening of split bolt 42 termination。The bottom of steel reinforcement cage 2 is fastened with a bed die 32 by one second stretch-draw assembly, and the second stretch-draw assembly includes horizontal flitch 34, steel pipe cross-arm 43 and HOOK BOLTS 41;Corresponding HOOK BOLTS 41 position of lower angle steel 13 is formed with through hole 131, HOOK BOLTS 41 runs through through hole 131, horizontal flitch 34 and steel pipe cross-arm 43, the eave tile portion of HOOK BOLTS 41 hooks tight type steel skeleton 1 and coordinates the butterfly fastener 412 of termination, double nut 413 stretch-draw fastening, beam side 31 is made to fall within the top of bed die 32, the vertical flitch 33 of side form 31 is positioned at the top of the horizontal flitch 34 of bed die 32 both sides, thus forming a template system 3。
When construction, first calculation type steel skeleton 1 can replace the quantity of original design reinforced beam longitudinal reinforcement and stirrup, angle steel 11 and lower angle steel 13 in welding, hole 131 is opened in advance on the base of lower angle steel 13, carry out the spelling of type steel skeleton 1 after completing and weld, form a space truss system, a HOOK BOLTS 41 (such as Fig. 2 and Fig. 3) it is respectively mounted in the position of the lower angle steel 13 of type steel skeleton 1, the through hole 131 on lower angle steel 13 base of HOOK BOLTS 41 traverse, HOOK BOLTS 41 is made not easily to rotate in installation process or move up and down by the fixing nut 411 in the middle part of HOOK BOLTS 41, and be fastenedly connected with type steel skeleton 1。
Steel reinforcement cage 2 is then installed; the longitudinal reinforcement 21 of steel reinforcement cage 2 is fixed on type steel skeleton 1 by spot welding; stirrup 22 is looped around the border of type steel skeleton 1; at the side of steel reinforcement cage 2 and bottom surface fixing plural number protective layer cushion block 23 respectively; side form 31 and bed die 32 are installed in the outside of steel reinforcement cage 2 again; owing to adding protective layer cushion block 23 between steel reinforcement cage 2 and template, thus the frictional force increased between type steel skeleton 1 and template, and the contact position plastic glue strip of side form 31 and bed die 32 is pasted。
Then horizontal flitch 34 and steel pipe cross-arm 43 are installed, this steel pipe cross-arm 43 is double; two steel pipes, as shown in Figure 3, beam bottom is worn by HOOK BOLTS 41 and fastens beam bottom board 32 into steel pipe cross-arm 43, horizontal flitch 34, bed die 32, and the termination butterfly fastener 412 of HOOK BOLTS 41 and double nut 413 tighten, then vertical flitch 33 and split bolt 42 are installed, being worn by split bolt 42 and fasten beam side 31 into beam both sides steel pipe cross-arm 43, vertical flitch 33 and side form 31, its termination is also adopted by butterfly fastener 412 and double nut 413 is tightened。
Coordinate further shown in Fig. 4, a grade mould rod 421 can be set in split bolt 42 both sides, this grade of mould rod 421 fits in the interior die face of side form 32, make side form not easily inward deflection in fastener cycle, make side form 31 and vertical flitch 33 be located between two grades of mould rods 421 and steel pipe cross-arm 43, it is ensured that beam section is of the required size, be conducive to the fastening to side form 31, and the spacing flitch 35 of back is installed, spacing flitch 35 is located at side form 31 both sides suitable for reading, in order to side form 31 to be played firm effect。
Finally utilize steel pipe cross-arm 43 at the bottom of beam that protective frame is installed, just complete the assembling of reinforced beam。After completing assembling, by the steel reinforcement cage 2 being completed and template system to treat that pouring structure carries out integral hoisting in place, take interim fixation, strong point position template gap is blocked, then to its casting concrete, vibrate before concrete initial set, after concrete strength meets the requirements, cut off split bolt 42 and HOOK BOLTS 41, and by removable hanging hanging basket form removal, thus completing the construction of reinforced beam。
The high-altitude long-span reinforced concrete beam construction method of the present invention, by completing the whole assembling treating pouring structure on ground, it is carried out hoisted in position, then casting concrete, the method of last form removal, has distinguishing feature for the construction of high-altitude long-span beam, has both improve construction quality, guaranteed construction speed and reduce engineering cost, enhance the steadiness of beams of concrete, it is ensured that the safety of construction operation simultaneously。

Claims (4)

1. the construction method of a high-altitude long-span reinforced concrete beam, it is characterised in that comprise the following steps:
The quantity of the calculating type steel skeleton in order to replace original design reinforced beam longitudinal reinforcement and stirrup, solder type steel skeleton, form a space truss system;
HOOK BOLTS is installed in described type steel skeleton bottom, makes described HOOK BOLTS be fastenedly connected with type steel skeleton by fixing nut;
Steel reinforcement cage is installed, at the fixing protective layer cushion block in the side of described steel reinforcement cage and bottom surface;
Mounting rail bed die, horizontal flitch and steel pipe cross-arm, by described HOOK BOLTS reinforcement bed die;
Mounting rail side form, vertical flitch and steel pipe cross-arm, reinforce two side forms by split bolt, and install the spacing flitch of back, complete the assembling treating pouring structure of high-altitude long-span reinforced concrete beam;
By described be completed treat that pouring structure integral hoisting is in place, take interim fixation, strong point position template gap blocked;
It is layered gradation casting concrete according to composite beam construction method, by removable hanging hanging basket form removal after concrete strength meets the requirements, and cuts off split bolt and HOOK BOLTS, complete the construction of high-altitude long-span reinforced concrete beam。
2. the construction method of high-altitude long-span reinforced concrete beam as claimed in claim 1, it is characterized in that: described type steel skeleton corner is respectively equipped with in twice angle steel and angle steel under twice, and described upper angle steel is supported and horizontal corner steel supporting welding by vertical angle steel with lower angle steel。
3. the construction method of high-altitude long-span reinforced concrete beam as claimed in claim 1, it is characterized in that: described steel reinforcement cage includes plural number longitudinal reinforcement and stirrup, described longitudinal reinforcement is welded on described type steel skeleton, and described stirrup is located on the border of described type steel skeleton。
4. the construction method of high-altitude long-span reinforced concrete beam as claimed in claim 1, it is characterised in that: described split bolt is respectively provided on two sides with a grade mould rod。
CN201610078457.3A 2013-03-05 2013-03-05 The construction method of high-altitude long-span reinforced concrete beam Active CN105696747B (en)

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CN201610078457.3A CN105696747B (en) 2013-03-05 2013-03-05 The construction method of high-altitude long-span reinforced concrete beam
CN201310069678.0A CN103114681B (en) 2013-03-05 2013-03-05 High-altitude long-span reinforced concrete beam treat pouring structure

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105952060A (en) * 2016-06-24 2016-09-21 东南大学 Precast beam reinforcement cage component and assembling method thereof
CN106245770A (en) * 2016-08-31 2016-12-21 中国建筑第八工程局有限公司 Expanded letter variable cross-section annular stiff beam construction method
CN107700654A (en) * 2017-08-25 2018-02-16 湖北工程学院 Enhanced reinforced concrete frame node
CN110593411A (en) * 2019-08-27 2019-12-20 江苏南通三建集团股份有限公司 Construction method of high-rise high-altitude suspended large-span beam

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CN106032702B (en) * 2015-11-06 2018-09-25 广州容联建筑科技有限公司 A kind of self-balancing monoblock type template assembly structure of reinforced beam
CN109025072A (en) * 2018-08-21 2018-12-18 中国十七冶集团有限公司 A kind of construction method of plate above formula beam bottom cover to reinforcement

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105952060A (en) * 2016-06-24 2016-09-21 东南大学 Precast beam reinforcement cage component and assembling method thereof
CN106245770A (en) * 2016-08-31 2016-12-21 中国建筑第八工程局有限公司 Expanded letter variable cross-section annular stiff beam construction method
CN106245770B (en) * 2016-08-31 2018-09-04 中国建筑第八工程局有限公司 Expanded letter variable cross-section annular stiffness beam construction method
CN107700654A (en) * 2017-08-25 2018-02-16 湖北工程学院 Enhanced reinforced concrete frame node
CN110593411A (en) * 2019-08-27 2019-12-20 江苏南通三建集团股份有限公司 Construction method of high-rise high-altitude suspended large-span beam

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CN103114681B (en) 2016-06-01
CN103114681A (en) 2013-05-22
CN105696747B (en) 2018-03-27

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Effective date of registration: 20200521

Address after: 300457 no.2599 Binhe Road, Tanggu, Binhai New District, Tianjin

Patentee after: Tianjin Construction Engineering Co., Ltd. of China Construction Eighth Engineering Bureau

Address before: 200122, No. 1568, Century Avenue, Shanghai, 27, Pudong New Area

Patentee before: CHINA CONSTRUCTION EIGHTH ENGINEERING DIVISION Co.,Ltd.