CN103967271A - Formwork combination reinforcing and supporting structure used in short-leg shear wall construction and construction method thereof - Google Patents
Formwork combination reinforcing and supporting structure used in short-leg shear wall construction and construction method thereof Download PDFInfo
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- CN103967271A CN103967271A CN201410226797.7A CN201410226797A CN103967271A CN 103967271 A CN103967271 A CN 103967271A CN 201410226797 A CN201410226797 A CN 201410226797A CN 103967271 A CN103967271 A CN 103967271A
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Abstract
The invention relates to a formwork combination reinforcing and supporting structure used in short-leg shear wall construction and a construction method thereof. The structure comprises formworks used for pouring a longitudinal short-leg shear wall and a transverse short-leg shear wall and split bolts between the formworks, and back supports of the formworks are composed of secondary edges and primary edges. The structure further comprises a plurality of horizontally arranged wall hoop bolts in the height direction of walls on the peripheries of the longitudinal shear wall formwork and the transverse shear wall formwork, wherein the wall hoop bolts are used for connecting and reinforcing a whole formwork enclosure system and the ends of the wall formworks in a tensioning mode. The lower portion of the formwork enclosure system is fixedly connected with short bolts pre-buried in last process, and tensile-connection bottom sealing is formed. For installation of the formworks of the short-leg shear walls, the structures of the formworks themselves are used in combination with the wall hoop bolts, therefore, the stability of a short-leg shear wall formwork supporting system is enhanced, the accuracy of the formworks in horizontal position and structure size is guaranteed, the effects on formwork supporting and reinforcement are achieved, and the purpose of lowering manufacturing cost is realized.
Description
Technical field
The present invention relates to braced structures and the construction method thereof of a kind of template in construction work, be specifically related to a kind of form assembly for short-shear wall structure construction and reinforce braced structures and construction method thereof.
Background technology
In construction-engineering project, shear wall with short piers form stable problem is more outstanding, and difficulty of construction is larger.Traditional shuttering supporting mode adopts building buckle by the fastening of steel pipe back cord or at wall end place, tool-type step fastener is set and carries out reinforcing mode at present, all can not solve the resistance to overturning of template.In addition, also have at external wall, staircase wall displacement, the fixing not firm problem of upper former, in construction due to the acting in conjunction of concrete load and working load, easily there are template deformation, displacement, existing seam etc., cause the bad problem of concrete structure Forming Quality.
Summary of the invention
For above-mentioned problems of the prior art, the object of the invention is to propose a kind of form assembly for shear wall with short piers construction and reinforce braced structures and construction method thereof, this structure and method have successfully solved this difficult problem of the prior art.
The technical scheme that the present invention takes for realizing its object: a kind of composite reinforcement braced structures for shear wall with short piers construction template, comprise the template for building longitudinal and transverse shear wall with short piers, and split bolt between template, the back support of described template is by inferior stupefied and main stupefied composition, first be directly supported on some of the template back side vertical time stupefied, to be horizontally disposed with some masters stupefied in order to be supported on the inferior stupefied back side for second; Along the high direction of template periphery wall of described longitudinal and transverse shear wall, be horizontally disposed with some roads and be used for socketing the table bolt of reinforcing whole template and go along with sb. to guard him the position, termination of system and wall form; The lag bolt that described template is gone along with sb. to guard him below system and last process is pre-buried is affixed, forms and sockets back cover.
Described time stupefied employing flitch is inferior stupefied, and the stupefied employing steel pipe of described master master is stupefied, and it is 16-20mm plywood form or bamboo blanket template that described template adopts thickness.
The flitch of described flitch time stupefied employing 50 × 100mm is made, and the spacing between flitch is time stupefied is 200-300mm; The inferior stupefied horizontally disposed steel pipe master in the back side of described flitch is stupefied is that two steel pipe masters are stupefied, adopts the building steel tube of Ф 48 × 3.5 to make.
Another object of the present invention is to provide the construction method for the composite reinforcement braced structures of shear wall with short piers construction template, comprises the steps:
1), template construct: according to wall size, template blanking, beats split bolt hole; The reserved hole that pre-buried lag bolt is connected during with upper track concrete construction in the time making building external, staircase shear wall formwork, for face limit at installation external wall, staircase template time socket with it;
2), inferior stupefied configuration: select the lumps of wood, according to Design Requirement Drawing spacing and template nail joint, lengthen time stupefied and template in building external, staircase position, for connecting the pre-buried lag bolt of last process;
3), template installs: according to the position line of putting well, by shear wall with short piers template along the peripheral installation in position of reinforcing bar;
4), the stupefied installation of steel pipe master: comprise and choose steel pipe length, the split bolt between template is set, fixing to drawing;
5), table bolt construction: comprise according to shear wall with short piers thickness, width and make table bolt, boxing out in position through walls, sockets tensioning;
6), the template bottom at exterior wall, staircase wall position is socketed firmly with pre-embedded bolt, by tight-closed template base;
7), cleaning interface, rinse rubbish, sealing template, build R.C. wall board.
In described step 1: according to the boring of will seeking unification of spacing, the array pitch of split bolt design, spacing 380-450mm, next row bolt hole is apart from template base 230mm, and vertically hole array pitch is 400-500mm.
In described step 2,3: unify after boring according to design split bolt position on to blanking rear pattern plate, time stupefied flitch is carried out to nail joint making according to design pitch and template, flitch time stupefied spacing is 200-300mm, and every template combines and is in place according to the good position line of bullet again; The erection sequence of wall form is: play the position line → installation one side template → installation opposite side template → closed end template → adjustment fixed form → installation surrounding and reinforce table bolt.
In described step 4: it is stupefied that the flitch time stupefied back side is horizontally disposed with two steel pipe masters, adopt the building steel tube of Ф 48 × 3.5 to make, main stupefied vertical spacing is as the criterion with the vertical array pitch of split bolt; In the time that template modulus is not inconsistent, allows to carry out assembled formwork according to the size of shear wall with short piers, but will ensure that formwork edge joint is tight, not spillage; The table bolt of shear wall with short piers end is installed: adopt the building split bolt of M12-14, for external wall, at the middle weldable steel seal ring of split bolt.
In described step 5: installing after two side templates, according to thickness of wall, template is carried out to termination edge sealing, then make table bolt according to the width of shear wall with short piers, thickness, first table bolt is located at and is overhead less than 23 ㎝ places and establishes.
In described step 1: pre-buried lag bolt when described upper track concrete construction, its position on peripheral shear wall or staircase shear wall top from constuction joint 150-200mm place, according to the pre-buried row's same specification split bolt of same upper mould bolt hole spacing 380-450mm, use to do shear wall with short piers template bottom, top envelope mould.
In described step 6: wall mould will cut concrete joint laitance before installing, and rinses well, and root is along wall housing line cement mortar screeding, so that corner Founder and avoid spillage.Wall mould root will stay establishes clean-out hatch, after rinsing well, can shut in concrete pouring front wall.
useful technique effect of the present invention:the template that the present invention is directed to shear wall with short piers is installed, and by the use of the structure of template itself and table bolt combination, the stability of having reinforced shear wall with short piers formwork bracing system, guarantees accurate in horizontal level, physical dimension of template.At external wall, staircase wall displacement, by with the effect that sockets of pre-embedded bolt, well controlled the location of this position template.In the situation that not increasing extra input, material economy, shorten the construction period, improve the Forming Quality of concrete shear force wall, its comprehensive technical performance has also exceeded traditional support system effect.Its steadiness is very excellent, not only meets the effect of shuttering supporting, reinforcing, and reaches the object that reduces cost.
Brief description of the drawings
Fig. 1 is template bolt hole schematic diagram of the present invention;
Fig. 2 is form bracing system structural representation of the present invention;
Fig. 3 is form bracing system structure section schematic diagram of the present invention;
Fig. 4 is form bracing system of the present invention and pre-embedded bolt connection diagram.
In figure: 1. plywood form, 2. the lumps of wood is time stupefied, and 3. steel pipe master is stupefied, 4. table bolt, 5. split bolt hole, 6, split bolt, 7, pre-embedded bolt, 8, last process concrete beam plate.
Detailed description of the invention
As Figure 1-4, reinforce braced structures for the form assembly of short-shear wall structure construction, adopt in plywood form 1 periphery arranges the lumps of wood time stupefied 2(or claims stupefied), stupefied outside the lumps of wood time stupefied 2 stupefied 3(of outer installation steel pipe master or title); Completing by split bolt 6 on the basis of location combination installation, install special table bolt 4 additional, make table bolt 4 reinforce whole template system in wall form end, surrounding.In addition, at external wall, staircase wall position, the pre-buried lag bolt of pre-embedded bolt 7(during by last process concrete construction) socket, sealing template bottom, fixed form position, controls template construction distortion.That the present invention adopts is time stupefied at the lumps of wood of plywood form periphery, steel pipe master is stupefied completes on the basis that location combination installs, install special table bolt 4 additional, table bolt 4, in end, the surrounding of template, according to the stupefied spacing of horizontal steel tube master, sockets reinforcing to whole template system; At external wall, staircase wall position, by with pre-embedded bolt 7 effectively socket back cover, control position and the steadiness of this place's template.Steel pipe master stupefied 3 is fixing by the split bolt 6 of wall body, and table bolt 4 is used for reinforcing whole template system.
The template that the present invention is directed to shear wall with short piers is installed, and by being used in combination of the support of template itself and table bolt and pre-embedded bolt, has improved the stability of shear wall with short piers formwork bracing system, guarantees accurate in horizontal level, physical dimension of template.Not increasing extra input, in the situation of material economy, shorten the construction period, improve the Forming Quality of concrete shear force wall, its comprehensive technical performance has also exceeded traditional support system effect.Stabilized structure of the present invention is very excellent, not only meets the effect of shuttering supporting, reinforcing, and can reuse, and reaches the effect that reduces cost.
The construction method of braced structures is reinforced in form assembly of the present invention, and step is as follows:
1), template construct: according to wall size, template blanking (beating bolt hole);
2), the lumps of wood time stupefied configuration: select the lumps of wood, according to Design Requirement Drawing spacing and template nail joint, lengthen (connecting reserved bolt) in building external, staircase position appropriateness;
3), template installs: according to the position line of putting well, by shear wall formwork along the peripheral installation in position of reinforcing bar;
4), the stupefied installation of steel pipe master: comprise and choose steel pipe length, split bolt in plate is set, fixing to drawing;
5), table bolt construction: comprise according to shear wall thickness, width and make table bolt, boxing out in position through walls, sockets tensioning.
6), pre-embedded bolt sockets: exterior wall, staircase wall position wall mould bottom are socketed firmly with pre-embedded bolt, by tight-closed template base.
In step 1: template construct is to require to carry out blanking according to the design size of shear wall with short piers, and template generally adopts veneer, bamboo offset plate etc. with material; In the good template of blanking, according to the boring of will seeking unification of spacing, the array pitch of split bolt design, spacing 400mm left and right, next row bolt hole is apart from template base 230mm, and vertically hole array pitch should be 400-500mm.
technological process:preparation of construction → template is chosen the blanking → brill split bolt hole → flitch time stupefied fabrication and installation → table of stupefied fabrication and installation → steel pipe master bolt fabrication and installation → be next procedure pre-embedded bolt → concreting
technological operation main points:
1, be familiar with construction drawing and stencil design.Constructure scheme examination & verification, approval complete.Establishment construction technology is told somebody what one's real intentions are, safety is told somebody what one's real intentions are and carried out every preparation of construction.Material is prepared, labour prepares, machinery is prepared, work plane is prepared all will meet the requirements.
2,choose plywood form, the bamboo offset plate etc. of thick 18mm.Template construct is to require to carry out blanking according to the design size of shear wall with short piers, and template generally adopts veneer, bamboo offset plate etc. with material.
3, in the good template of blanking, according to the boring of will seeking unification of spacing, the array pitch of split bolt design, about spacing 400mm, next row bolt hole is apart from template base 230mm, and hole array pitch should be 400-500mm.
4, wall form back-supported form by twice (wood stupefied and steel stupefied), perpendicular stupefied (wooden stupefied) that first is direct support shuttering, makes with the flitch of 50 × 100mm, in order to support the lateral pressure of concrete to template; On to blanking rear pattern plate, unify after boring according to design bolt position, time stupefied flitch is carried out to nail joint making according to design pitch and plywood form, flitch spacing 200-300mm, every template combines and is in place according to the good position line of bullet again.
5, the stupefied installation of steel pipe master: it is stupefied that the flitch time stupefied back side is horizontally disposed with two steel pipe masters, adopts the building steel tube of Ф 48 × 3.5 to make, and main stupefied vertical spacing is as the criterion with the vertical array pitch of split bolt; In the time that template modulus is not inconsistent, allows to carry out assembled formwork according to the size of shear wall, but will ensure that formwork edge joint is tight, not spillage.
6, template is installed: the erection sequence of wall form is: play the position line → installation one side template → installation opposite side template → closed end template → adjustment fixed form → installation surrounding and reinforce table bolt.
7, installing after two side templates, according to thickness of wall, template is carried out to termination edge sealing, then make table bolt according to the width of shear wall with short piers, thickness; Table size can make full use of the split bolt of body of wall, the adopted welding falling short of spreading or employing building buckle spreading.
8, the hole that while reserving with upper track concrete construction in the time making external wall, staircase shear wall formwork, pre-buried lag bolt is connected.In the time that being installed, the template that building external, staircase face limit sockets with it.
9, the table bolt of shear wall end is installed: adopt the building split bolt of M12-14, for external wall, at the middle weldable steel seal ring of split bolt.
10, be next procedure pre-embedded bolt: before upper track concreting, on peripheral, staircase shear wall top from constuction joint 150-200mm position, according to the short same specification split bolt of the pre-buried row of spacing 400-500mm, use to do shear wall formwork bottom, top envelope mould.
11, shear wall with short piers props up mould parameter: inferior stupefied (keelson) spacing (mm): 300; Through-wall bolt level interval (mm): 400 left and right; Main stupefied (outer keel) spacing (mm): 400-500; The vertical spacing of through-wall bolt (mm): 400-500; Split bolt, the table diameter of bolt (mm): M12-14.
12, plank sealing four sides is selected in wall mould bottom.At the bottom of watering concrete front wall, stay clean out, so that foreign material at the bottom of flushing wall.All after sealing, and table bolt is installed, first table bolt is located at and is overhead less than 23 ㎝ places and establishes.
13, wall mould will cut concrete joint laitance before installing, and rinses well, and root is along wall housing line cement mortar screeding, so that corner Founder and avoid spillage.Wall mould root will stay establishes clean-out hatch, after rinsing well, can shut in concrete pouring front wall.
14, template should check center line of wall after installing, and utilizes 20cm control line for checking reference line, adjusts verticality with line pendant and tape measure inspection, wall mould install proofread and correct reinforce after at template end opening 1:3 cement mortar stuff up a crack, with mortar leakage prevention.
The present invention is at the table bolt of shear wall with short piers template-setup, effectively solve the situation of wall form end rheonomic constraint, the stupefied vertical array pitch setting of table and steel pipe master, several direction shear wall with short piers formwork reinforcements are formed to a complete support system, there is good holistic resistant behavior, the lateral pressure that the concrete construction that can effectively contend with produces, and the impact load producing in construction.Solved due to template system built on the sand, globality is poor, and then the concrete formation causing is prone to: journal offset, harmomegathus mould, template are now stitched the quality problems such as honeycomb, hole that spillage produces.
At external wall, staircase wall position, because levels concrete construction joint position shear wall formwork is bad fixing, be still not enough to control construction position, axis by back cord table and be not subjected to displacement in addition.By in advance in last process shear wall concrete, from the pre-buried row's lag bolt of constuction joint position 150-200mm; When this template is installed, template bottom by with the pre-buried lag bolt of last process socket envelope mould, effectively fix on the one hand template position, control on the other hand the displacement of template, the generation of dislocation, the mould phenomenon that rises while efficiently solving the levels shear wall concrete formation that while construction, template system unstability causes.
Claims (9)
1. the composite reinforcement braced structures for shear wall with short piers construction template, comprise the template for building longitudinal and transverse shear wall with short piers, and split bolt between template, it is characterized in that: the back support of described template is by inferior stupefied and main stupefied composition, first be directly supported on some of the template back side vertical time stupefied, second is that to be supported on the some horizontally disposed masters at time stupefied back side stupefied; Along the high direction of template periphery wall of described longitudinal and transverse shear wall, be horizontally disposed with some roads and be used for socketing the table bolt of reinforcing whole template and go along with sb. to guard him the position, termination of system and wall form; The lag bolt that described template is gone along with sb. to guard him below system and last process is pre-buried is affixed, forms and sockets back cover.
2. the composite reinforcement braced structures for shear wall with short piers construction template according to claim 1, it is characterized in that: described time stupefied employing flitch is inferior stupefied, the stupefied employing steel pipe of described master master is stupefied, and it is 15-18mm plywood form or bamboo blanket template that described template adopts thickness.
3. the composite reinforcement braced structures for shear wall with short piers construction template according to claim 1, is characterized in that: the flitch of described flitch time stupefied employing 50 × 100mm is made, and the spacing between flitch is time stupefied is 200-300mm; The inferior stupefied horizontally disposed steel pipe master in the back side of described flitch is stupefied is that two steel pipe masters are stupefied, adopts the building steel tube of Ф 48 × 3.5 to make.
4. according to the construction method of the composite reinforcement braced structures for shear wall with short piers construction template described in claim 1-3 any one, it is characterized in that: comprise the steps:
1), template construct: according to wall size, template blanking, beats split bolt hole; The reserved hole that pre-buried lag bolt is connected during with upper track concrete construction in the time making building external, staircase shear wall formwork, for face limit at installation external wall, staircase template time socket with it;
2), inferior stupefied configuration: select the lumps of wood, according to Design Requirement Drawing spacing and template nail joint, lengthen time stupefied and template in building external, staircase position, for connecting the pre-buried lag bolt of last process;
3), template installs: according to the position line of putting well, by shear wall with short piers template along the peripheral installation in position of reinforcing bar;
4), the stupefied installation of steel pipe master: comprise and choose steel pipe length, the split bolt between template is set, fixing to drawing;
5), table bolt construction: comprise according to shear wall with short piers thickness, width and make table bolt, boxing out in position through walls, sockets tensioning;
6), the template bottom at exterior wall, staircase wall position is socketed firmly with pre-embedded bolt, by tight-closed template base;
7), cleaning interface, rinse rubbish, sealing template, build R.C. wall board.
5. construction method according to claim 4, it is characterized in that: in described step 1: according to the boring of will seeking unification of spacing, the array pitch of split bolt design, spacing 380-450mm, next row bolt hole is apart from template base 230mm, and the vertical array pitch in hole is 400-500mm.
6. construction method according to claim 4, it is characterized in that: in described step 2,3: on to blanking rear pattern plate, unify after boring according to design split bolt position, time stupefied flitch is carried out to nail joint making according to design pitch and template, flitch time stupefied spacing is 200-300mm, and every template combines and is in place according to the good position line of bullet again; The erection sequence of wall form is: play the position line → installation one side template → installation opposite side template → closed end template → adjustment fixed form → installation surrounding and reinforce table bolt.
7. construction method according to claim 4, is characterized in that: in described step 4: it is stupefied that the flitch time stupefied back side is horizontally disposed with two steel pipe masters, adopts the building steel tube of Ф 48 × 3.5 to make, and main stupefied vertical spacing is as the criterion with the vertical array pitch of split bolt; In the time that template modulus is not inconsistent, allows to carry out assembled formwork according to the size of shear wall with short piers, but will ensure that formwork edge joint is tight, not spillage; The table bolt of shear wall with short piers end is installed: adopt the building split bolt of M12-14, for external wall, at the middle weldable steel seal ring of split bolt.
8. construction method according to claim 4, it is characterized in that: in described step 5: installing after two side templates, according to thickness of wall, template is carried out to termination edge sealing, make table bolt according to the width of shear wall with short piers, thickness again, first table bolt is located at and is overhead less than 23 ㎝ places and establishes.
9. construction method according to claim 4, it is characterized in that: in described step 1: pre-buried lag bolt when described upper track concrete construction, its position on peripheral shear wall or staircase shear wall top from constuction joint 150-200mm place, according to the pre-buried row's same specification split bolt of same upper track template bolt hole spacing 380-450mm, use to do shear wall with short piers template bottom, top envelope mould.
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