CN103061505B - A kind of multi-functional split bolt and uses thereof - Google Patents
A kind of multi-functional split bolt and uses thereof Download PDFInfo
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- CN103061505B CN103061505B CN201310011739.8A CN201310011739A CN103061505B CN 103061505 B CN103061505 B CN 103061505B CN 201310011739 A CN201310011739 A CN 201310011739A CN 103061505 B CN103061505 B CN 103061505B
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Abstract
The invention discloses a kind of multi-functional split bolt and uses thereof, shank of bolt two ends install a steel plate respectively, weld between shank of bolt with a steel plate and be connected, the shank of bolt between two steel plates welds a pair locator card for fixing reinforcement location, shank of bolt both ends assembling clamp nut.When watering composite construction afterwards for first building, accelerating construction speed, improve efficiency of construction, can strengthen bond degree and the compactness at unlike material interface, improve integrality performance of the structure, the using function of structure is more reliable, reduce maintenance and safeguard, effectively extending engineering useful life.The accuracy and reliability that reinforcement cover can be made to control is higher, more reliable ensureing that agent on crack resistance of concrete soaks into, in anti-erosion, model sheetinstallat, reinforces convenient to operation, and can eliminate masonry verticality and planeness deviation effects, construction accuracy is higher.Conventional one side formwork side direction support can be reduced, reduce difficulty of construction, cost-saving, be applicable to body of wall and plate class A of geometric unitA bilateral template formwork construction and built-in fitting location and installation simultaneously.
Description
Technical field
The present invention relates to split bolt in cast-in-place concrete structure construction and uses thereof; particularly relate to the split bolt structure of or bilateral model sheetinstallat and reinforcing one-sided for concrete and replace steel bar horse-shaped bench and cushion block of concrete bar protective layer to carry out the purposes of the double-deck formwork of hang plate, relating to the purposes for concrete component facade, inclined plane, upper surface built-in fitting location and installation.
Background technology
Split bolt is the basic module of template system in cast-in-place concrete structure construction, and the effect of split bolt is two side template spacing of maintenance concrete component, the lateral pressure of bearing newly placed concrete and pouring construction, ensures template system bulk strength and rigidity.Traditional split bolt carries out designing and making for concrete component bilateral template, and bolt shape and size configurations have two ends symmetry, and the using method at split bolt two ends is also identical with function.
But in concrete pouring construction, often run into and need to carry out the one-sided situation installing template, as 1. retaining wall and support wall, construction plant or working space is narrow and small, the outer wall of underground structure limit by peripheral facilities and ambient conditions; 2. a framed side wallboard is prefabricated or build by laying bricks or stones, and opposite side is the sandwich heat preserving wall body of cast-in-place concrete structure; 3. composite insulation wall; 4. the concrete composite heat insulation structure of low temperature resistant environment; 5. be designed with anticorrosion and durability topping (protection masonry) and higher special concrete structure etc. is required to structural integrity.In addition, prop up in die process being tilted to plate class A of geometric unitA bilateral template, need to lay topping cushion block successively, lay the operations such as the support split heads of top reinforcement; Prop up in die process at vertical formwork, also need colligation to fix topping cushion block.Thus there is model sheetinstallat, reinforce that inconvenient operation, operation are more, construction accuracy is difficult to the drawbacks such as guarantee, the split bolt of obvious existing structure can not be satisfied the demand the one-sided construction requirement installing template, be tilted to plate class A of geometric unitA formwork, vertical formwork formwork well.
Summary of the invention
The invention provides a kind of multi-functional split bolt that can be used for masonry and composite concrete structure one side formwork, namely meet one side formwork multi-functional split bolt installing construction requirement and uses thereof, to solve prior art Problems existing.Realize the functional unifications such as template in concrete engineering construction is fixed, reinforcing bar location, composite construction masonry temperature pier, built-in fitting indwelling, reach and simplify constructing operation operation, raising operating efficiency, enhancing quality control level.
For realizing the object of the invention, this multi-functional split bolt for masonry and composite concrete structure one side formwork it comprise shank of bolt, it is characterized in that described shank of bolt is at least provided with screw thread in its two ends, shank of bolt two ends install a steel plate respectively, shank of bolt is at least connected with welding between a steel plate, shank of bolt between two steel plates is welded with the locator card of a pair wiretie, clamp nut is assembled respectively in shank of bolt both ends.
Described locator card is a metal rod, and described rod member is bent into " U " shape, and " U " shape bar one end axially extends, and the three-dimensional structure of described elongated end and the mutual angle in 90 ° of " U " shape bar place plane, " U " shape bar of elongated end side welds with shank of bolt.
Described locator card also can adopt " П " shape bar structure its two ends being bent angle in 90 °, one end rod member of " П " shape bar rotates along kink, postrotational rod member and former " П " shape bar form the three-dimensional member structure of 90 ° of angles each other, and the middle part of three-dimensional rod member is welded with shank of bolt.
Be equipped with adjusting nut inside the steel plate of described shank of bolt one end, the steel plate of assembling adjusting nut side is flexibly connected with between shank of bolt.
Described steel plate is square or rectangular, and the length of side of square steel plate is 100 ~ 200mm.
Described steel plate is circular, and the diameter of circular steel plate is 100 ~ 200mm.
Described multi-functional split bolt is used for first building and waters class formation one side formwork afterwards and prop up die process.
Described multi-functional split bolt is used for vertical body of wall class A of geometric unitA or is tilted to plate class A of geometric unitA bilateral template propping up die process.
Affiliated multi-functional split bolt is used for the indwelling operation of concrete structure facade and level or inclined plane upper surface built-in fitting.
The multi-functional split bolt of the present invention is used for first building that to water structure one side formwork formwork process operations process afterwards as follows:
Preparation of construction and leading operation → (reinforcing bar binding, steel mesh reinforcement interim stabilization) construction of → masonry structure, with build by laying bricks or stones operation imbed multi-functional split bolt → split bolt position of sound production reinforce girt strip, with split bolt, girt strip and masonry are tightened together, stable and strengthening action → binding structure reinforcing bar are risen to masonry, with colligation with the locator card phase hook of reinforced mesh good for colligation and multi-functional split bolt is connected and colligation firmly → check and check → install one side formwork → lay template system to reinforce girt strip, fastening split bolt, girt strip will be reinforced together with dies plate tap, exerted bolt termination is wiped out after pressing close to compacting → concreting operation → form removal between template plate face and outer fagging, shearing end is done preservative treatment.
It is as follows that the multi-functional split bolt of the present invention is used for vertical formwork formwork process operations process:
Preparation of construction and leading operation → assembling reinforcement (temporary support) → an install side template → install split bolt → split bolt and reinforcing bar binding fix → install opposite side template → lay reinforcing girt strip → dies plate tap → template correct → concreting operation → form removal after wipe out exerted bolt termination after, shearing end is done preservative treatment.
It is as follows that the multi-functional split bolt of the present invention is used for being tilted to plate class A of geometric unitA bilateral template formwork process operations process:
Preparation of construction and leading operation → bracing frame are set up → are laid girt strip and bottom template → bullet and survey reinforcement location line and mark split bolt anchor point → colligation lower rebar → in the template of bottom, install split bolt → fastening split bolt, lower fagging (interior fagging) and bottom template system are fastened and fixed → lower rebar are placed on lower locator card and (is inside decided to be card), colligation location → colligation upper reinforcement locating with top locator card colligation → (utilize top fagging to install and locate built-in fitting) → check errorless and checking and accepting → install upper mould, support → install top formwork reinforcement girt strip by upper fagging, split bolt is fastening → check bottom template and reinforcing situation → concreting operation → form removal after wipe out exerted bolt termination after, shearing end is done preservative treatment.
The multi-functional split bolt of the present invention is used for the working procedure of built-in fitting indwelling, and operating process is as follows:
When the built-in fitting indwelling of concrete component facade: preparation of construction and leading operation → (reinforcing bar binding) → install built-in fitting opposite one side template → roughly demarcate position corresponding to built-in fitting in template, be followed successively by with reference to determining multi-functional split bolt (location) position → wear positioning bolt, girt strip will be reinforced, template, interior fagging is fastening → fix (when built-in fitting weight is larger with the bar spacers on positioning bolt and structure reinforcing bars, can optionally lay special bracing frame) → lay built-in fitting and interim stabilization → built-in fitting facade is adjusted to and docks (or parallel lap position) → position adjusted in built-in fitting plane with outer fagging plane and meet designing requirement → check errorless, built-in fitting panel is docked with outer fagging weld (or lap fillet welding) firmly → mounting vertical plane template → lay formwork reinforcement girt strip, fastening bolt, exerted bolt termination is wiped out after template plate face and built-in fitting surface pressure being close to reality → concreting operation → form removal.
During for having the level of bed die or a built-in fitting indwelling of inclination concrete component upper surface: preparation of construction and leading operation → bottom model sheetinstallat, reinforce → survey on bed die and establish built-in fitting position line, sideline → determine multi-functional split bolt point position → (assembling reinforcement) → install multi-functional split bolt (positioning bolt) on bed die according to installation sideline is installed, lower fagging (interior fagging) and bottom template system reliably fix → identifys built-in fitting absolute altitude and install fagging in position line → fine setting (outer fagging) extremely suitable absolute altitude → be placed on upper fagging (outer fagging) by built-in fitting by fastening bolt, elevation location check errorless → on built-in fitting panel, place fastening girt strip → mounting fastener by fastening girt strip, built-in fitting panel, on Multifunctional bolt fagging (outer fagging) secure together → (after fluid concrete, check built-in fitting position absolute altitude, unclamp fastening girt strip and further accurate adjustment done to built-in fitting position) after → concrete reaches some strength, remove fastening girt strip, wipe out exerted bolt termination.
The technological progress that the present invention obtains:
(1) when the split bolt of structure of the present invention waters composite construction afterwards for first building; bond degree and the compactness at unlike material interface can be strengthened; improve integrality performance of the structure; make the using function of structure more reliable; reduce maintenance and safeguard, effectively extending engineering useful life, adopting first to build and water construction composite construction afterwards; engineering useful life 1 ~ 2 times can be extended, masonry topping and structure same life-span can be reached.
(2) when the split bolt of structure of the present invention is used for masonry class and concrete composite construction, can realize carrying out temperature pier with masonry construction with to masonry, effectively can improve masonry in the stability of construction stage and bearing strength, improve and first build the one-time-concreting height watering construction method afterwards, conventional construction method is generally built 2 ~ 2.5m by laying bricks or stones and is carried out a formwork and fluid concrete, use can to bring up to after the present invention and often build 3 ~ 4.5m by laying bricks or stones and highly pour into a mould a concrete, above two kinds of process ration, the quantity more than 55% ~ 60% of structure gradation pouring construction section can be reduced, decrease operation cycle-index, as in the structure height of 4m, former technique needs every 2m once to build by laying bricks or stones, steel bar template, concreting, technology intermission, carry out 2 this operation circulations altogether: i.e. 2 subsurface work acceptance, 2 times pouring construction prepares, 2 technology intermissions, 2 treatment of construction joints, operation handing-over between 2 each work posts, the present invention only need carry out one-time process circulation in the structure height of 4m, therefore reduces the work post handover time on work plane, intermediate acceptance time, the time of building, technology intermission time more than 50%, adopt one side formwork mold method of the present invention and common bilateral template construction composite construction, template consumption 50% can be reduced, reduce to reinforce supporting about 30%, shorten and build the step lasts time 25% by laying bricks or stones.Thus accelerate construction speed, improve efficiency of construction.
(3) when bilateral or (one-sided) template formwork, interior fagging is directly supported in bottom (or facade side) template (masonry structure side), top (or facade opposite side) template can directly install outside on fagging, be installed on fagging and outer fagging on shank of bolt and play positioning control effect, because two fagging spacing shift to an earlier date machine-shaping by the controlling dimension of component thickness, only need by template and fagging fastening assembly school tightly, can ensure template spacing and plate face smooth-going.Interior fagging is made to have larger size and larger rigidity during bolt design of the present invention, multi-functional split bolt anchoring can be made after this bolt end and template school are tight, be stabilized on this side template or masonry, during formwork, bilateral template is only needed to the template of internal fagging side carries out position, verticality (gradient) and flatness correct, opposite side template only need fastening with outer fagging after take stabilization and reinforcement measure; During one side formwork formwork, only need do stabilization and reinforcement measure after fastening for outer for template fagging.Levelling and template spacing correction work amount during model sheetinstallat can be reduced, thus make model sheetinstallat, centering, reinforcing faster and more convenient operation, bilateral formwork generally can be saved template system and correct consolidation time about 30%, and single side formwork generally can be saved template system and correct consolidation time about 50%.Due to inside and outside fagging and shank of bolt position is prefabricated shapes, its accuracy controls the manufacturing deviation standard that can reach steel work, construction accuracy is higher, and perform welding for steel structure assembling allowable variation ± 2mm, after concreting, reinforcement cover plate class A of geometric unitA deviation can be controlled in-3mm ~ 5mm scope; Corresponding concrete quality standard, plate class A of geometric unitA reinforcement cover installs allowable variation ± 3mm, entity detection reinforcement cover plate class A of geometric unitA deviation-5mm ~ 8mm after concreting.
Adjusting nut is equipped with inside steel plate due to shank of bolt one end, when namely adopting adjustable outer fagging, by adjusting nut, eliminate verticality and the planeness deviation effects of masonry, as long as carry out Survey control conscientiously adjust outer fagging in construction, can make first to build concrete surface glacing flatness, the verticality of watering composite construction afterwards and reach clear-water concrete standard.Usual method will reach this standard in homogeneous structure, needs drop into template correction, consolidation time or adopt the template system that precision is higher, rigidity is larger.
(4) owing to adopting " U " shape and " П " shape bar spacers of three-dimensional structure, thus traditional cushion block can be replaced.Split bolt of the present invention achieves the functional unification of split bolt and cushion block of concrete bar protective layer, when carrying out split bolt fitting operation, namely complete reinforcement cover to arrange simultaneously, eliminate and lay cushion block operation, saved cushion block making, the material of installation, artificial and duration take, locator card and shank of bolt are for be reliably welded to connect, prefabricated processing, intensity and precision all can ensure, due to locator card and shank of bolt, fagging, template is located reinforcing bar jointly by fastening means, only be placed on reinforcing bar with traditional cushion block, and be that (template can not limit cushion block and move inward and lost efficacy independence and freedom device relative to template, at installation form, in the processes such as fluid concrete, cushion block be hit or External Force Acting time easily come off or rotate along reinforcing bar, slippage and lost efficacy) compare, the efficient of position, reinforcement cover control point reaches 100%, effectively improve the accuracy and reliability that reinforcement cover controls.
(5) after concreting, steel plate i.e. interior fagging and the outer fagging be installed on shank of bolt extends the direction that harmful environmental medium corrodes to inside concrete and permeates, change erosion and permeation pathway, well protection and sealing process are served to the concrete in its region, thus after form removal, the termination of exposing of pull bar of the present invention processes comparatively easy, the reliability ensureing structure durability and using function is conducive to environmentally hazardous special engineerings such as having corrosion and infiltration, strengthen the concrete opposing in split bolt place to soak into, erosion performance, common split bolt position spillage can be eliminated, the defects such as leakiness, constructional appearance better quality.And traditional pull-out type split bolt to the sealing of bolt hole and waterproof, seepage control process comparatively complicated, technology and operant level require high; Mostly common indwelling split bolt periphery is the weak spot that seepage and harmful environmental material inwardly corrode, more difficult effective process.Therefore compare with traditional split bolt, the present invention is more reliable ensureing that agent on crack resistance of concrete soaks into, in anti-erosion.
(6), in the plate class A of geometric unitA such as inclination, level, when installing bilateral template, the present invention can replace simultaneously or partly replace the support split heads of upper reinforcement, can reduce split heads consumption 50 ~ 100%.
(7) when bilateral or (one-sided) template formwork, interior fagging can directly be supported in bottom (or facade side) template (masonry structure side), top (or facade opposite side) template can directly install outside on fagging, interior fagging and outer fagging play positioning control effect, and common Split bolt sleeve and template can be replaced to shore.
(8) while guarantee reinforcement location and protective layer thickness; shank of bolt of the present invention and bar spacers can replace or part replaces cage of reinforcement tension rib to use; this structure 100% replacement can construct steel tie and non-antidetonation steel tie, replaces antidetonation steel tie should be determined by experiment.
(9) the present invention conveniently can realize the accurate pre-buried indwelling of built-in fitting.During for installation of embedded parts, reinforcing template multi-functional split bolt used can be used as embedded part positioning bracket simultaneously, also separately can install independently multi-functional split bolt and locate for built-in fitting.Except the screw portion of split bolt, other support and all recyclable turnover of locator material uses.The present invention utilizes accurate location and the fastening function of bolt, by template system, multi-functional split bolt, built-in fitting anchor slab, reinforce girt strip and form integrated structure, reach installation site accurate, fixing reliable, can avoid being shifted in concrete placement, deflection, drifting problems etc. cause the too great deviations of built-in fitting position, built-in fitting can realize accurate location, built-in fitting deviations≤2mm can be reached, and be no more than 3mm, stay and establish deviation≤5mm, anchor slab concordant with surface of concrete structure (the concrete embedded part standard deviation 10mm of concrete structure engineering construction quality specification), therefore, setting accuracy is higher than usual method.Because the fixed parts such as adopted bolt, template are all modular units, therefore installation exercise mostly is the work of stylizing, relative to the usual method utilizing structure reinforcing bars or falsework to carry out built-in fitting location, be more conducive to construction standardization, improve operation quality and workmanship.
The present invention is specially adapted to: the composite concrete structure being 1. provided with anticorrosion, impermeable, heat insulation or durability masonry class topping, as the formwork such as fluc project of quenching tower, chemical industry and purification tank for liquid waste, employing bulk or monolithic separation layer; 2. the outer wall of basement single side formwork that masonry class leads wall is provided with; 3. hard heat insulating plate material (or bulk) composite thermal-insulating wall formwork; 4. cast-in-place concrete structure sandwich heat preservation combined wall formwork; 5. bilateral is needed to install the level and hang plate class A of geometric unitA formwork etc. of template; 6. big-and-middle-sized built-in fitting location and installation: the built-in fitting location that cast-in-situ concrete member facade is buried underground, the dip member upper surface built-in fitting location of bilateral formwork, only need install inclination and the horizontal member upper surface built-in fitting location of bottom template.
The present invention is identical with installing common common double side template operation requirements, does not need special strutting means, is applicable to the one side formwork of composite construction or installing and reinforcing of bilateral template.During for composite construction one side formwork formwork, reinforcement measure of taking that can be flexible improves masonry stability and the supporting capacity to newly placed concrete thereof, eliminate conventional one side formwork side direction support, reduce construction difficulty, saving engineering cost is obvious, (common one side formwork compares with the present invention, be characterized in not arranging split bolt, one side formwork adopts rigidity large form, outside large form, installation side supports to bracing frame or full hall scaffold, the effect of bracing frame is for installing fixed form and the concrete lateral pressure bearing template transmission, its structure is comparatively complicated, construction material consumption is many, need to carry out special large formwork design and bracing frame design).The present invention is also suitable for the formwork construction of body of wall and plate class A of geometric unitA bilateral template and the location and installation of built-in fitting.
The present invention can realize the formwork reinforcement function of split bolt, reinforcement cover function, reinforced bar support split heads function, function that template is shored (Split bolt sleeve), structure tension rib function, installation of embedded parts positioning function.For vertical and that tilt wall, plate class A of geometric unitA formwork, template spacing and reinforcement cover are located convenient, and efficiency of construction is high, quality control is reliable.Be applied to built-in fitting positioning function, the present invention utilizes accurate location and the fastening function of bolt, by template system, multi-functional split bolt, built-in fitting anchor slab, reinforce girt strip formation integrated structure, reach installation site accurate, fixing reliable, setting accuracy is higher than usual method; Only installing level and the dip member upper surface of bed die, built-in fitting also can carry out secondary fine and really correct after building; For unique construction, then can at the middle part indwelling anchor slab of two side templates, fixing anti scuffing section bar, by packed layer concrete and deck concrete once-cast, not only good integrity, also reduce form work engineering workload and a technology intermission time of packed layer, generally can shorten about 7 ~ 15 days such engineering construction durations, correspondingly reduce engineering cost.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Fig. 2 is bar spacers use principle reference view.
Fig. 3 is the adjustable outer fagging structural representation of the present invention.
Fig. 4 is that one side formwork of the present invention installs structural representation.
Fig. 5 is that the present invention is for dip member formwork erecting structure schematic diagram.
Fig. 6 is that the present invention is for installation of embedded parts structural representation during bilateral template.
Fig. 7 is the similar alternative arrangements schematic diagram of Fig. 6.
Fig. 8 is that the present invention is for laying inclination and the horizontal member upper surface built-in fitting principle schematic of bed die.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Embodiment 1: as shown in Figure 1 and Figure 2, this its two ends of multi-functional split bolt 1 for masonry and composite concrete structure one side formwork arrange screw thread, shank of bolt 1 two ends install a steel plate i.e. interior fagging 2 and outer fagging 5 respectively, interior fagging 2 and outer fagging 5 are square steel plate (or rectangle steel plate), inner support edges of boards length is 100 ~ 200mm, thickness is not less than 6 mm, and in the present embodiment, fagging 2 length of side is 100mm; Outer fagging 5 length of side is 50 ~ 100mm, and thickness is not less than 6 mm, and the length of side of the outer fagging 5 of the present embodiment is 80mm; Interior fagging 2 and outer fagging 5 are connected with welding between shank of bolt 1 respectively, shank of bolt 1 between interior fagging 2 and outer fagging 5 welds namely adjacent with the interior fagging 2 inner side bar spacers 3 of a pair locator card for wiretie and the outside bar spacers 4 adjacent with outer fagging 5, after universal clench fastener is assembled at the both ends of shank of bolt 1 respectively, install clamp nut additional.
Inner side bar spacers 3 is a reinforcing bar rod member, after this reinforcing bar rod member is bent into " U " shape, " U " shape bar one end axially extends, and the three-dimensional structure of elongated end and the mutual angle in 90 ° of " U " shape bar place plane, " U " shape bar of elongated end side welds with between shank of bolt 1.Bar spacers also can adopt and reinforcing bar rod member two ends are bent into " П " shape bar structure with reinforcing bar rod member angle in 90 °, one end reinforcement rod of " П " shape bar rotates along kink, the postrotational reinforcement rod three-dimensional member structure that form each other 90 ° angles vertical with former " П " reinforcement rod, the middle part of three-dimensional reinforcing bar rod member is welded with between shank of bolt 1.
In practice of construction, split bolt pull bar 1 preferably adopts M10 and above standard specification, structural carbon steel or split bolt versatile material, when engineering has anticorrosive or other particular/special requirements, uses the special steel material or surface treated steel product that conform with the regulations.Screw rod specification and the comprehensive following factor of bolt end fastening force are determined: a. template system reinforces desirable strength and rigidity; B. Multifunctional bolt keeps the fixing required rigidity (stable type that template system is installed and constructed) in one end; C. during concreting bear lateral pressure and other working load of template; D. supporting embedded part and reinforcing bar load, the upper mould system load supporting dip member and other working load, upper mould concrete buoyancy and concrete fluid dynamic.
The two ends of split bolt pull bar 1 make screw thread, end screw thread can adopt machine-processed mantle fiber or rolled thread, screw thread length in masonry one end according to the reinforcing construction of masonry, adopt fastening clip type specification, clamp nut size determines, screw thread length is determined according to the type specification of formwork reinforcement form, fastening clip, clamp nut size in cast-in-situ concrete side.Split bolt pull bar 1 also can adopt elongated standard screw thread rolled thread screw mandrel.
One end of split bolt pull bar 1 is imbedded and is fixed on the masonry of composite construction, and the other end is used for fixing one side formwork.In the masonry construction stage, according to working design, optionally can reinforcement girt strip be tightened together as reinforcing construction measure with masonry, the humidification to masonry can be played, ensure that new masonry construction is stable, safety; In the reinforcement installation stage of concrete structure, coordinate bar spacers 3,4, the stable of reinforced mesh can be kept, cage of reinforcement is located; At one side formwork erection stage, split bolt pull bar 1 is the align member of template system and key is fastening, girth member; In the pouring concrete construction stage, split bolt pull bar 1 bears the concrete lateral pressure of template transmission and corresponding working load, ensures template system strength and stiffness.
Split bolt pull bar 1 specifications and models are determined by engineering design according to the size of load needed for it, and the length of split bolt pull bar 1 and each spot size can refer to split bolt current techique rule and determine.
Interior fagging 2 adopts steel plate to make, and material requires with above-mentioned split bolt pull bar 1.Interior fagging 2 can be made into square (or circular or rectangle), and the shape and size size of interior fagging 2 is comprehensively determined by engineering and mechanics design principle according to following factor: the stable and reinforcement measure needs of a. masonry; B. split bolt is reliably fixed on masonry; C. masonry strength (comprising the growth property of intensity), split bolt arrangement pitch; D. the fastening pulling force of split bolt on masonry; E. screw rod is delivered to interior fagging working load, as reinforcing bar and built-in fitting load, upper mould and working load etc.; F. the measure requirement such as anticorrosive, impermeabilisation of structure.Interior fagging 2 thickness is general >=6mm, planar dimension 100 × 100 ~ 200 × 200mm or diameter 100 ~ 200mm.
The centre-drilling hole of interior fagging 2, the diameter of its aperture and split bolt pull bar 1 matches, junction after split bolt pull bar 1 penetrates and between interior fagging 2 adopts solder design and closes, and weld seam should meet fagging force request, and connection reliability should meet corrosion-resistant, impermeabilisation technical requirements.
Interior fagging 2 and split bolt pull bar 1 end cap, fastener acting in conjunction, tighten together split bolt, reinforcing girt strip, masonry, play booster action simultaneously to masonry strength, rigidity; Interior fagging 2 coordinates with outer fagging 5, controls one side formwork and masonry spacing, ensures that the sectional dimension of cast-in-place concrete structure is accurate, is delivered on masonry structure by the load of template system simultaneously by pull bar.Interior fagging is used for vertical member bilateral formwork, its with side dies plate tap after, stable, fixation is played to split bolt, strengthens template system integral rigidity, raising formwork reinforcement, centering effect; Interior fagging is used for dip member bilateral formwork, after itself and bed die system are fastening, play stable, fixation, reinforcing bar load, built-in fitting load, upper mould load, other working load are delivered to bed die and formwork-support to split bolt.
Inner side bar spacers 3 and outside bar spacers 4 adopt the reinforcement fabrication of Φ more than 5 specification, each portion processing and fabricating sizes such as the curved radius of " U " shape, the straight length of " U " shape hook, the straight length of " П " shape hook, locator card length match (when adopting the method for another additional bar to structural reinforcement framework location with the arrangement of reinforcement specification in concrete structure, bar spacers can be made into common standard sizes by the specification of additional bar, not by the specification limits of structural reinforcement).
Inner side bar spacers 3 is axially arranged along split bolt pull bar 1, and reliably welds with being formed between split bolt pull bar 1.Inner side bar spacers 3 installation site with the thickness of protection tier of composite construction masonry side for control criterion, within fagging 2 masonry one side surface for control starting point.
The effect of inner side bar spacers 3 keeps accurate (play steel bar spacer effect) of inner side thickness of protection tier, ensures that reinforced mesh is stable and indeformable, and its action principle is shown in Fig. 2.The form of structure of inner side bar spacers 3 and outside bar spacers 4 can be exchanged, and inner side bar spacers 3 also can use the form of structure of outside bar spacers 4.
Inner side bar spacers 3 and outside bar spacers 4, split bolt pull bar 1 coordinates, can be used as in concrete component, the drawknot arrangement of reinforcement in outside reinforced mesh (cage of reinforcement) uses, now, pitch arrangement of the present invention should meet the configuration requirement of Structural Design to tension rib, outside bar spacers 4 needs to arrange by inner side bar spacers 3 form simultaneously, the description of materials of bar spacers, the straight length etc. of bar gauge and " U " shape crotch, should adjust to consistent with the drawknot arrangement of reinforcement of Structural Design, bar spacers 3, 4 should meet the intensity technique requirement of steel tie with the bonding strength of split bolt pull bar 1.
Outside bar spacers 4 adopts the reinforcement fabrication of Φ more than 5 specification, each portion processing and fabricating sizes such as the curved radius of " П " shape, the straight length of " П " shape hook, locator card length match (when adopting the method for another additional bar to locate structural reinforcement with concrete structural reinforcement specification, bar spacers can be made into standard size by the specification of additional bar, not by the restriction of structural reinforcement).
Outside bar spacers 4 is axially arranged along split bolt pull bar 1, and reliably welds with being formed between split bolt pull bar 1.Bar spacers 4 installation site, outside is control foundation with composite construction cross section size and outside thickness of protection tier (i.e. the spacing of medial and lateral reinforcing bar), and fagging 5 outer surface (inner side bar spacers) is for controlling starting point in addition.
The effect of outside bar spacers 4 ensures that outside reinforcement location and protective layer thickness accurately (play steel bar spacer effect), keep reinforced mesh stable and indeformable, and its action principle is shown in accompanying drawing 2.
Inner side bar spacers 3 and outside bar spacers 4 coordinate jointly, can ensure that outside reinforcing bar (skeleton) size and position are accurate in cast-in-situ concrete; In level and dip member, pull bar and upper and lower locator card can play reinforcing bar and effectively support and positioning action, play the dual-use function of steel bar spacer and top reinforcement split heads.
Concrete structural reinforcement 7,8 to be buckled in respectively in bar spacers 3,4 and to adopt binding method to fix.When the position of structural reinforcement can not solve (additional bar length should be not less than the spacing of 3 structural reinforcements, and firm with structural reinforcement pointwise colligation) the method that separately can increase additional bar time corresponding in split bolt position with split bolt.
The non-adjustable outer fagging 5 of the present embodiment adopts steel plate to make, and material requires with split bolt pull bar 1.The shape and size size of outer fagging 5 is comprehensively determined by engineering design principle according to following factor: the fastening force of a. split bolt and one side formwork; B. one side formwork material and template face bearing strength; C. built-in fitting and upper mould load, working load; D. the measure requirement such as structure environment for use and anticorrosive, impermeabilisation.Outer fagging 5 thickness is general >=6mm, and planar dimension is not less than 50 × 50 ~ 100 × 100mm.
The centre-drilling hole of non-adjustable outer fagging 5, aperture and split bolt railing 1 match specifications, be welded to connect between split bolt pull bar 1 and outer fagging 5, gap after split bolt pull bar 1 penetrates and between outer fagging 5 adopts weld seam to close, and weld seam and connection reliability should meet outer fagging 5 force request and corrosion-resistant, impermeabilisation requirement.
Non-adjustable outer fagging 5 is connected with matching nut, formwork with fastener-style by split bolt pull bar 1 end screw thread, template, the girt strip in length and breadth of reinforcing template, split bolt is tightened together, plays location, reinforcement effect to template system; Outer fagging 5 coordinates with interior fagging 2, controls one side formwork and masonry spacing (or bilateral template spacing), accurate to ensure cast-in-place concrete structure cross section.In dip member bilateral template formwork, outer fagging supports upper mould system, ensures bolster spacing, by upper mould and working load by being delivered to screw rod and lower fagging; In installation of embedded parts, the direct supporting embedded part of upper fagging, to form entirety by fastening girt strip (or template) and realizes built-in fitting and locate by built-in fitting and multi-functional Duola's bolt, bottom template.
Embodiment 2: as shown in Figure 3, the present embodiment difference from Example 1 is that the shank of bolt 1 inside outer fagging 5 assembles a pair adjusting nut 6, mutually screw between two adjusting nuts 6, weld between adjusting nut 6 with fagging 5, movable adjustable between the outer fagging 5 of assembling adjusting nut 6 side and shank of bolt 1, namely form adjustable outer fagging 51, when cast-in-situ concrete surface needs to reach clear-water concrete standard, then can adopt the adjustable outer fagging 51 of the present embodiment.
The effect of adjustable outer fagging 51 with can not the effect of the outer fagging 5 of mode identical, adjustable outer fagging 51 installs for there being the one side formwork of high-precision requirement.Now, split bolt pull bar 1 end screw thread length should add and grows to the reinforcement cover degree of depth.During formwork erection, according to levelling position, one side formwork plate face, the adjustable nut 6 of inner side is adjusted to correct position, more adjustable outer fagging 51 is screwed.
The present invention adopts the masonry of first the constructing fixed end as one side formwork, by split bolt 1 of the present invention, one side formwork and masonry are fixed, reach one side formwork stability and intensity, rigidity requirement, meet other function of the present invention simultaneously.
Be cast-in-situ concrete opposite side in side be in the composite concrete structure of masonry (or prefabricated units), adopt the sequence of construction of first building rear cast by laying bricks or stones, the present invention is imbedded when building construction, utilize the template of intensity (adopting this split bolt 1 pair of masonry 11 intensity or stability suitably to reinforce if desired) as cast-in-situ concrete 10 side of masonry 11 itself, the opposite side of concrete 10 adopts one side formwork 9 formwork.Installing with to reinforce method of operating identical with ordinary concrete structure bilateral template of one side formwork 9 of the present invention.Its operating procedure principle is shown in Fig. 4.
In working design, check masonry strength, determine split bolt arrangement pitch, formulate template construct and Scheme of Strengthening (requiring identical with bilateral mould plate technique); Determine to build by laying bricks or stones needed for the circulation of operation, the height of formwork and pouring concrete, formulate reinforced masonry wall measure if desired, to improve the stability of masonry within the length of time and bearing capacity; When replacing cage of reinforcement tension rib with the present invention, arrangement pitch of the present invention and bar spacers 3,4 will meet the requirement of Structural Design to tension rib.
During Construction in Preparatory Stage, design of the present invention, making should meet the regulation of steel knot design specifications, acceptance standard of engineering quality of steel structure; To the engineering having anticorrosive, durability etc. to require, the present invention should meet the regulation of related measure; To there being impervious, anti-engineering of leaking requirement, split bolt pull bar is welded with seal plate by regulation.
Embodiment 3: as shown in Figure 5, the present embodiment is used for being tilted to plate class A of geometric unitA bilateral template and props up die process, and its operating process is as follows:
Bracing frame set up → lay reinforce girt strip and bottom template 12 → bullet survey reinforcement location line and split bolt position line → colligation lower rebar 8 → lay split bolt 1 → split bolt 1 tight with template pattern rock reinforcement school, bottom → lower rebar 8 locates → colligation upper reinforcement 8 locating → (utilize top fagging 2 to install and locate built-in fitting) → check errorless with check and accept → install upper mould 13 → install upper mould 13 to reinforce girt strip, split bolt 1 fastening → check bottom template 12 and reinforcing situation → concreting operation → form removal after wipe out exerted bolt termination after, shearing end is done preservative treatment.The upper fagging 2 of the present embodiment and lower fagging 5 instead of the sleeve pipe of existing split bolt and shore; Locator card 3,4 instead of cushion block of concrete bar protective layer and steel bar horse-shaped bench; Bar spacers presses tension rib intensity and construction measure processing and fabricating, can replace structure tension rib and use; Meanwhile, split bolt 1 and cushion block, split heads, template such as to shore at the function integration, avoid the structure section shoring and loosen and cause with bolt tension and the excessive defect of reinforcement cover minus deviation.The present embodiment is particularly suitable for vertical wall body construction, needs the hang plate class A of geometric unitA of bilateral formwork, as the formwork construction of feed bin and tank structure, square or circular hopper, shell structure, material blocking wall etc.
Embodiment 4: when the present embodiment is used for bilateral template formwork, concrete component facade built-in fitting, dip member upper surface built-in fitting, have the installation and locating method of the special construction built-in fitting of packed layer, construction technology when its operating process and above-mentioned concrete component facade built-in fitting indwelling is identical.
Wherein the locate mode of built-in fitting has 2 kinds, one be upper fagging 5 surface with built-in fitting anchor slab surface in a plane, upper fagging 5 is connected with docking between built-in fitting anchor slab 14, as shown in Figure 6; Another kind is upper fagging 5 and take between built-in fitting anchor slab 14 to overlap to be connected, and as shown in Figure 7, now, when making multi-functional split bolt 1, upper fagging 5 is reduction 1 anchor slab thickness inwardly.
Adopt between built-in fitting anchor slab 14 and upper fagging 5 and be welded to connect.Multi-functional split bolt 1 for locating can share with template split bolt, also can need another separately setting according to location group tooth.
Under this exemplifying embodiment fagging 2 and bottom (or side) template 12 between fastening, make Multifunctional bolt 1 preliminary firm, play supporting role; After welding between built-in fitting anchor slab 14 with upper fagging 5, built-in fitting and Multifunctional bolt 1 are formed and stablizes framework, enhance the lateral rigidity of system; Install top (or opposite side) template 13 and fastening with upper fagging 5 after, form a locating system be jointly made up of bottom template system, upper mould system and built-in fitting anchor slab (shock resistance structure also being comprised to the shock resistance section bar be welded and fixed with anchor slab), because the rigidity in two sideform system and built-in fitting plane is all very large, be bolted between built-in fitting and two side templates, therefore built-in fitting fixing can bear concrete impact force, vibrate power, flowing pressure etc., be consistent with the distortion of template, thus ensure installation quality.Contrast built-in fitting common installation method, one is that built-in fitting is connected with structure reinforcing bars, two is arrange bracing frame, be built-in fitting independently to install, do not contact directly with template system, fitting operation is inconvenient, location and adjustment workload larger, installation site accuracy controls not easily to ensure, especially template system rigidity can not be played large, be out of shape little advantage, install the independent installation system of bed die easily in concrete impact force, larger displacement and distortion is there is under power of vibrating and the effect of concrete fluid dynamic, built-in fitting is caused to drift about and position, absolute altitude, the deviations such as gradient.
Embodiment 5: as shown in Figure 8, the present embodiment is used for only installing the bottom level of template and the installation of embedded parts localization method of dip member upper surface, and its operating process is identical for construction technology when having the level of bed die or the built-in fitting indwelling of inclination concrete component upper surface with above-mentioned.
The present embodiment is suitable for the installation of the big-and-middle-sized built-in fitting anchor slab of concrete surface, the key of the method utilizes the fastening girt strip 15 on built-in fitting anchor slab upper fagging 5 and built-in fitting to be tightened together, form rigid unitary, rigid unitary plays effect of contraction to passive each split bolt 1 vertical rod upper free ends, enhance its anti-side and move stability, whole system is fixed on bed die 12 by lower fagging 2, thus is located by built-in fitting.Built-in fitting is a functional part of navigation system, be mounted member is also tooth pad.Common localization method is generally by built-in fitting and bar connecting, and embedded part upper surface absolute altitude, planeness not easily accurately control, and operating efficiency is low, and quality control on construction level is lower.This method can adopt standardized work program, and speed of application is fast, and installation accuracy is high, and especially absolute altitude and levelness control very easily to ensure, all install and use bolton, can realize secondary accurate adjustment, good engineering quality.
Claims (10)
1. a multi-functional split bolt, it comprises shank of bolt, it is characterized in that described shank of bolt is at least provided with screw thread in its two ends, shank of bolt two ends install a steel plate respectively, shank of bolt is at least connected with welding between a steel plate, shank of bolt between two steel plates is welded with the locator card of a pair wiretie, clamp nut is assembled respectively in shank of bolt both ends.
2. multi-functional split bolt according to claim 1, it is characterized in that described locator card is a metal rod, described rod member is bent into " U " shape, " U " shape bar one end axially extends, the three-dimensional structure of described elongated end and the mutual angle in 90 ° of " U " shape bar place plane, " U " shape bar of elongated end side welds with shank of bolt.
3. multi-functional split bolt according to claim 1, it is characterized in that described locator card also can adopt " П " shape bar structure its two ends being bent angle in 90 °, one end rod member of " П " shape bar rotates along kink, postrotational rod member and former " П " shape bar form the three-dimensional member structure of 90 ° of angles each other, and the middle part of three-dimensional rod member is welded with shank of bolt.
4. multi-functional split bolt according to claim 1, is equipped with adjusting nut inside the steel plate that it is characterized in that described shank of bolt one end, and the steel plate of assembling adjusting nut side is flexibly connected with between shank of bolt.
5. multi-functional split bolt according to claim 1, is characterized in that described steel plate is square or rectangular, and the length of side of square steel plate is 100 ~ 200mm.
6. multi-functional split bolt according to claim 1, it is characterized in that described steel plate is for circular, the diameter of circular steel plate is 100 ~ 200mm.
7. a purposes for multi-functional split bolt as claimed in claim 1, is characterized in that described multi-functional split bolt waters one side formwork afterwards prop up die process for first building.
8. the purposes of multi-functional split bolt according to claim 1, is characterized in that described multi-functional split bolt props up die process for being tilted to plate class A of geometric unitA bilateral template.
9. the purposes of multi-functional split bolt according to claim 1, is characterized in that described multi-functional split bolt props up die process for vertical bilateral template.
10. the purposes of multi-functional split bolt according to claim 1, is characterized in that the location and installation operation of described multi-functional split bolt for the built-in fitting of component facade and upper surface.
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