CN104389269B - Bridge pad preformed hole four hole positioning device and method - Google Patents
Bridge pad preformed hole four hole positioning device and method Download PDFInfo
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- CN104389269B CN104389269B CN201410650180.8A CN201410650180A CN104389269B CN 104389269 B CN104389269 B CN 104389269B CN 201410650180 A CN201410650180 A CN 201410650180A CN 104389269 B CN104389269 B CN 104389269B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/04—Bearings; Hinges
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Abstract
The invention discloses a kind of bridge pad preformed hole four hole positioning device, including rectangle support, described rectangle support includes the first L-shaped bar and the second L-shaped bar, two right-angle sides of described first L-shaped bar are provided with horizontal short tooth bar, two right-angle sides of described second L-shaped bar are provided with longitudinal long tooth bar, be connected by short tooth bar and long tooth bar and be internally formed a rectangular window between described first L-shaped bar and the second L-shaped bar；4 positioning screw assemblies, described 4 positioning screw assemblies are separately mounted to 4 right angle of rectangular window, wherein 2 positioning screw assemblies are fixed with the right angle of the first L-shaped bar and the second L-shaped bar respectively and are connected, other 2 positioning screw assemblies removably connect with two junctions of the first L-shaped bar and the second L-shaped bar respectively, and described positioning screw assembly matches with casement.The present invention can fix four casements simultaneously so that it is becomes a rigidity entirety, eliminates the skew of single casement position and tilts.
Description
Technical field
The invention belongs to technical field of bridge construction, be specifically related to a kind of bridge pad preformed hole four hole positioning device and method.
Background technology
Bridge pad is the important feature parts connecting bridge superstructure and substructure, the counter-force of bridge superstructure and deformation (displacement and corner) can be passed to bridge substructure by reliably, are consistent so that the actual loading situation of structure is graphic with the theory of calculating.
Before bridge pad is installed, the reserved of bearing anchor (bolt) hole must be carried out.In the construction operation of bridge pad preformed hole, traditional construction technology be adopt four pvc pipes as preformed hole casement, through four measurement and positionings, respectively these four pvc pipe colligations, be fixed on bearing reinforcing bar.But, this way has three drawbacks: although one is the measured location of single casement, but more than one of the reinforcing bar together with its colligation, and these reinforcing bars can not be both passed through measurement and positioning, adjust, cause that casement is likely to produce position skew in process of binding；Two is that bearing reinforcement ratio is more, spacing is little, casement upper end in the relatively good colligation of rebar surface, fixing, but the not easily colligation inside reinforced mesh of casement lower end, fixing, casement is vibrated to be susceptible to；Three be build, vibrate bearing concrete time, vibrating head vibrates in casement surrounding, casement and reinforcing bar be given a shock can produce equally position skew.Three of the above factor superposition, can cause that four casements produce towards uncertain direction substantially to tilt or position skew, and cannot correct after concreting, therefore before erection support, measurement and positioning, hole flushing must be required again according to the installation dimension of carrier setting bolt, and in hole flushing process, usually cut off bearing reinforcing bar, and both time-consuming, affect again bearing installation quality.
Summary of the invention
It is an object of the invention to provide a kind of bridge pad preformed hole four hole positioning device and method, it can fix four casements simultaneously so that it is becomes a rigidity entirety, eliminates the skew of single casement position and tilts；And only need to measure twice and just can be located, be fixed on bearing external mold and prop up on support system, simple operation, vibrated rod interference is less.
The technical solution adopted for the present invention to solve the technical problems is:
Thering is provided a kind of bridge pad preformed hole four hole positioning device, this device includes:
Rectangle support, described rectangle support includes the first L-shaped bar and the second L-shaped bar, two right-angle sides of described first L-shaped bar are provided with horizontal short tooth bar, two right-angle sides of described second L-shaped bar are provided with longitudinal long tooth bar, it is connected by short tooth bar and long tooth bar between described first L-shaped bar and the second L-shaped bar, and is being internally formed a rectangular window；
4 positioning screw assemblies, described 4 positioning screw assemblies are separately mounted to 4 right angle of rectangular window, wherein 2 positioning screw assemblies are fixed with the right angle of the first L-shaped bar and the second L-shaped bar respectively and are connected, other 2 positioning screw assemblies removably connect with two junctions of the first L-shaped bar and the second L-shaped bar respectively, and described positioning screw assembly matches with casement.
By technique scheme, described other 2 positioning screw assemblies are removably connected by two junctions of clamp assemblies and the first L-shaped bar and the second L-shaped bar, described clamp assemblies includes 2 clamping plate and the puller bolt being disposed therein on clamping plate, described 2 clamping plate are vertically mounted on positioning screw assembly, the thickness that the distance between described 2 clamping plate is superimposed be more than or equal to the first L-shaped bar and the second L-shaped bar.
By technique scheme, described positioning screw assembly includes screw rod, top nut, movable snap ring, lower nut, tensioning boots plate and connecting rod, the outer surface of described screw rod is provided with oppositely oriented first paragraph screw thread and second segment screw thread, described top nut and first paragraph screw thread are screwed, described lower nut and second segment screw thread are screwed, described movable snap ring is arranged between first paragraph screw thread and second segment screw thread, described top nut, movable snap ring, lower nut are hinged respectively through connecting rod and tensioning boots plate, multiple described coaxial peripheries being arranged on screw rod of tensioning boots plate.
By technique scheme, the end of described screw rod is provided with rotating sleeve, and the two ends of described sleeve are spacing respectively through cover plate and fixed dam.
By technique scheme, the sleeve of described 2 positioning screw assemblies is respectively through the fixing connection of right angle of gusset and the first L-shaped bar and the second L-shaped bar.
By technique scheme, the two ends of described screw rod are provided with square toes.
By technique scheme, the joint face of described first L-shaped bar and the second L-shaped bar is respectively equipped with length scale.
Accordingly, the present invention provides a kind of bridge pad preformed hole four hole localization method, comprises the following steps:
S1, make bridge pad preformed hole four hole positioning device as claimed in claim 1；
nullS2、Device in S1 is kept flat on the operational platform，Installation dimension according to bridge pad bolt adjusts the size of this device，First dismantle other 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar junction，Unclamp the first L-shaped bar and joint face that the second L-shaped bar is mutually twisted，Adjust the first L-shaped bar and the relative position of the second L-shaped bar，Make the relative position and two the position one_to_one corresponding to corner bolt on bridge pad that are arranged between 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar right angle，In adjustment process，Keeping the window within the first L-shaped bar and the second L-shaped bar is rectangle，After adjustment completes，It is connected by short tooth bar and long tooth bar between first L-shaped bar and the second L-shaped bar，Other 2 positioning screw assemblies are installed in junction，The first L-shaped bar and the second L-shaped bar is made firmly to connect；
S3, the device in S2 is sidelong on operating platform, makes 4 casements be respectively and fixedly installed on 4 positioning screw assemblies, complete the installation of casement with fixing；
S4, by S3 is provided with the device of casement steadily, exact placement is on the reinforced mesh of bridge pad, in device, the upper end of any two positioning screw assembly is measurement and positioning object, determine the two positioning screw assembly position in reinforced mesh, then this device is propped up with the external mold of bridge pad support system is fixing to be connected, again measures, the position coordinates of 4 positioning screw assemblies of approval.
nullThe beneficial effect comprise that: the present invention can according to the installation dimension of multiple bridge pad bolt，Adjust the first L-shaped bar and the relative position of the second L-shaped bar，Make the relative position and two the position one_to_one corresponding to corner bolt on bridge pad that are arranged between 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar right angle，The junction of the first L-shaped bar and the second L-shaped bar is connected by short tooth bar and long tooth bar，And firmly connected by other 2 positioning screw assemblies，Again 4 casements are respectively and fixedly installed on 4 positioning screw assemblies simultaneously，Become a rigidity entirety，Then whole device is placed in reinforced mesh，Arbitrarily select two positioning screw assembly measurement and positionings，Find its position in reinforced mesh，So only need to measure twice，Just the external mold that 4 casements are accurately fixedly mounted on bridge pad can be propped up on support system，Build、Vibrate in bearing Concrete，No matter vibrating head vibrates near which casement，This casement is under the common support of this device and other three casements，Will not produce because of being given a shock significantly to tilt or position skew，Reach the purpose of accurate positioning.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described, in accompanying drawing:
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the sectional view of line A-A along Fig. 1；
Fig. 3 is the left view of Fig. 1；
Fig. 4 is the installation steps figure mono-of the embodiment of the present invention；
Fig. 5 is the sectional view of line B-B along Fig. 4；
Fig. 6 is the left view of Fig. 4；
Fig. 7 is the installation steps figure bis-of the embodiment of the present invention；
Fig. 8 is the sectional view of line C-C along Fig. 7；
Fig. 9 is the left view of Fig. 7；
Figure 10 is the structural representation of the first L-shaped bar being installed with positioning screw assembly；
Figure 11 is the top view of Figure 10；
Figure 12 is the structural representation of the second L-shaped bar being installed with positioning screw assembly；
Figure 13 is the upward view of Figure 12；
Figure 14 is the structural representation of the positioning screw assembly being provided with clamp assemblies；
Figure 15 is the top view of Figure 14；
Figure 16 is the structural representation of positioning screw assembly；
Figure 17 is the top view of Figure 16.
In figure: 1-positioning screw assembly, 101-screw rod, 102-square toes, 103-cover plate, 104-sleeve, 105-fixed dam, 106-top nut, 107-free bearing, 108-tensioning boots plate, 109-connecting rod, 110-bearing pin, 111-first paragraph screw thread, 112-movable snap ring, 113-second segment screw thread, 114-lower nut, 115-cover screw, 2a-the first L-shaped bar, 2b-the second L-shaped bar, the short tooth bar of 201-, the long tooth bar of 202-, 3-clamp assemblies, 301-clamping plate, 302-puller bolt, 4-gusset, 5-casement.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearly understand, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the present invention, is not intended to limit the present invention.
As shown in Fig. 1～Fig. 3, Figure 10～Figure 13, a kind of bridge pad preformed hole four hole positioning device, this device includes:
Rectangle support, rectangle support includes the first L-shaped bar 2a and the second L-shaped bar 2b, two right-angle sides of the first L-shaped bar 2a are provided with horizontal short tooth bar 201, two right-angle sides of the second L-shaped bar 2b are provided with longitudinal long tooth bar 202, it is connected by short tooth bar 201 and long tooth bar 202 between first L-shaped bar and the second L-shaped bar, and is being internally formed a rectangular window；
4 positioning screw assemblies, 4 positioning screw assemblies are separately mounted to 4 right angle of rectangular window, wherein 2 positioning screw assemblies 1 are fixed with the right angle of the first L-shaped bar 2a and the second L-shaped bar 2b and are connected, two junctions of other 2 positioning screw assemblies 1 and the first L-shaped bar 2a and the second L-shaped bar 2b removably connect, and positioning screw assembly matches with casement.
In a preferred embodiment of the invention, as shown in Figure 14, Figure 15, two junctions of other 2 positioning screw assemblies 1 and the first L-shaped bar 2a and the second L-shaped bar 2b are removably connected by clamp assemblies 3, clamp assemblies 3 includes 2 clamping plate 301 and the puller bolt 302 being disposed therein on clamping plate 301,2 clamping plate 301 are vertically mounted on positioning screw assembly 1, the thickness that the distance between 2 clamping plate 301 is superimposed be more than or equal to the first L-shaped bar and the second L-shaped bar.When needing the size adjusting this device, first unclamp puller bolt, clamping plate are removed the first L-shaped bar and the junction of the second L-shaped bar, after having adjusted, clamp the first L-shaped bar and the junction of the second L-shaped bar again with clamping plate, and tighten puller bolt and make the first L-shaped bar and the second L-shaped bar be fastenedly connected.
In a preferred embodiment of the invention, such as Figure 16, shown in Figure 17, positioning screw assembly includes screw rod 101, top nut 106, movable snap ring 112, lower nut 114, tensioning boots plate 108 and connecting rod 109, the outer surface of screw rod 101 is provided with oppositely oriented first paragraph screw thread 111 and second segment screw thread 113, top nut 106 and first paragraph screw thread 111 are screwed, lower nut 114 and second segment screw thread 113 are screwed, movable snap ring 112 is arranged between first paragraph screw thread 111 and second segment screw thread 113, top nut 106, movable snap ring 112, lower nut 114 is hinged respectively through connecting rod 109 and tensioning boots plate 108, multiple coaxial peripheries being arranged on screw rod 101 of tensioning boots plate 108.When casement is installed, casement is arranged on positioning screw assembly, screw rod is rotated toward a direction, because first paragraph screw thread and second segment screw thread is oppositely oriented, top nut and lower nut can respectively under the drives of first paragraph screw thread and second segment screw thread, move to movable snap ring simultaneously, draw close, and then drive connecting rod to push out tensioning boots plate, increase its working diameter, realize tensioning, the purpose of fixing casement, after concrete initial set, screw rod is rotated toward opposite direction, draw tensioning boots plate in, reduce its working diameter and just can unclamp casement, realize separating of positioning screw assembly and casement, just can take out positioning screw assembly, to realize the recycling of this device.
In a preferred embodiment of the invention, as shown in figure 16, the end of screw rod 101 is provided with rotating sleeve 104, and the two ends of sleeve 104 are spacing respectively through cover plate 103 and fixed dam 105.The rotation that screw rod is rotatably mounted, forward and reverse in sleeve to realize screw rod with sleeve.
In a preferred embodiment of the invention, as shown in Figure 10～Figure 13, Figure 16, the sleeve 104 of 2 positioning screw assemblies 1 is connected respectively through gusset 4 is fixing with the right angle of the first L-shaped bar and the second L-shaped bar, it is ensured that the fastness of connection, improves the service life of this device.The clamping plate of clamp assemblies are vertically fixedly mounted on sleeve.
In a preferred embodiment of the invention, as shown in figure 16, the two ends of screw rod 101 are provided with square toes 102, are sleeved on square toes by spanner, it is possible to rotary screw more easily.
In a preferred embodiment of the invention, the joint face of the first L-shaped bar and the second L-shaped bar is respectively equipped with length scale, when adjusting the size of this device, it is possible to directly measure with the length scale on the first L-shaped bar and the second L-shaped bar, convenient and swift.
Accordingly, the present invention also provides for a kind of bridge pad preformed hole four hole localization method, comprises the following steps:
S1, make above-mentioned bridge pad preformed hole four hole positioning device；
nullS2、Device in S1 is kept flat on the operational platform，Installation dimension according to bridge pad bolt adjusts the size of this device，First dismantle other 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar junction，Unclamp the first L-shaped bar and joint face that the second L-shaped bar is mutually twisted，Adjust the first L-shaped bar and the relative position of the second L-shaped bar，Make the relative position and two the position one_to_one corresponding to corner bolt on bridge pad that are arranged between 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar right angle，In adjustment process，Keeping the window within the first L-shaped bar and the second L-shaped bar is rectangle，After adjustment completes，It is connected by short tooth bar and long tooth bar between first L-shaped bar and the second L-shaped bar，Other 2 positioning screw assemblies are installed in junction，The first L-shaped bar and the second L-shaped bar is made firmly to connect；
S3, the device in S2 is sidelong on operating platform, makes 4 casements be respectively and fixedly installed on 4 positioning screw assemblies, complete the installation of casement with fixing；
S4, by S3 is provided with the device of casement steadily, exact placement is on the reinforced mesh of bridge pad, in device, the upper end of any two positioning screw assembly is measurement and positioning object, determine the two positioning screw assembly position in reinforced mesh, then this device is propped up with the external mold of bridge pad support system is fixing to be connected, again measures, the position coordinates of 4 positioning screw assemblies of approval.
The operation principle of the present invention is: the installation dimension requirement according to multiple bridge pad bolt, the four of bearing preformed hole casements are fixedly mounted in a likeness in form bridge pad, convenient assembled, peace is torn open, can on reusable general frame structure i.e. this device, only by twice measurement and positioning, it is possible to the four of bridge pad preformed hole casements are accurately installed, are fixed in bearing reinforced mesh；Building, vibrating in bearing Concrete, no matter vibrating head vibrates near which casement, this casement, under the common support of four hole locators and other three casements, will not produce because of vibrated significantly to tilt or position skew, reach the purpose of accurate positioning；After concrete initial set, unclamp four positioning screws so that it is separate with casement and namely can be taken off four hole locators；Casement is pre-buried complete and position accurately, without hole flushing, time saving and energy saving, in turn ensure that bearing installation quality.
The advantage of this device is in that: can fix four casements simultaneously, forms a rigidity entirety, eliminates the skew of single casement position and tilts；Only needing twice measurement just can be located, be fixed on bearing external mold and prop up on support system, simple operation, vibrated rod disturbs less；The size of this device can adjust, and can match with the installation dimension of multiple bridge pad bolt.
The specific practice of the present invention is:
null1、Such as Figure 16、Shown in 17，First make positioning screw assembly，Process a screw rod，It is divided into by fixed dam 105 and movable snap ring 112、In、Lower three sections，Epimere is construction section，Fixed dam is first fixedly mounted at construction section，Sleeve 104 is sleeved on the upper end of screw rod 101、Freely drop on fixed dam 105，Can relatively rotate between sleeve 104 and screw rod 101，Again cover plate 103 is sleeved on the upper end of sleeve 104、It is positioned on the square toes 102 of screw rod 101，Then install、Tighten cover screw 115 and namely complete the assembling of sleeve，The two ends of sleeve 104 are by cover plate 103、Fixed dam 105 is spacing，In screw rod 101、It is left-handed that hypomere is respectively equipped with first paragraph screw thread 111() and second segment screw thread 113(dextrorotation)，The pitch of two sections of screw threads is identical，Isolate with movable snap ring 112 in the middle of two sections of screw threads，Top nut 106、Lower nut 114、The overall dimensions of movable snap ring 112 is identical，It is intended merely to easy to assembly，Top nut 106、Movable snap ring 112 is processed into two panels、Half-open assembly，Top nut、Lower nut、Use connecting rod 109 hinged between movable snap ring and tensioning boots plate 108，It is specially connecting rod 109 hinged by bearing pin 110 and free bearing 107，Free bearing 107 is arranged on top nut 106、Lower nut 114、On movable snap ring 112 and tensioning boots plate 108；
2, as shown in Figure 10～Figure 13, make the first L-shaped bar 2a and the second L-shaped bar 2b, the overall dimensions of two L-shaped bars is basically identical, the length of they right-angle sides is generally 110cm(because the location dimension of four bolts of bridge pad is usually no more than 60x110cm), in order to increase integrally-built rigidity, two L-shaped bars adopt L-type steel to make, in order to prevent two L-shaped bar junctions from producing relative sliding, the plane of both right-angle sides is processed bar shaped zigzag, tooth pitch, tooth depth is no more than 5mm, first L-shaped bar 2a wherein processes the short tooth bar 201 vertical with right-angle side, second L-shaped bar 2b processes the long tooth bar 202 parallel with right-angle side, long, the shape of short tooth bar is all identical with size, rack work region is the inside 65cm in outer end of right-angle side；
null3、As shown in Fig. 1～Fig. 9，Assemble this device，Assembled with the first L-shaped bar 2a and the second L-shaped bar 2b、It is fixed into a rectangle support，Centre is unlimited rectangular window，It is identical that four right angle in intermediate rectangular window are respectively mounted a direction、It is perpendicular to positioning screw assembly 1 or the positioning screw assembly 1 of angle square，In order to easy to assembly，The right angle of 2 positioning screw assemblies 1 and the first L-shaped bar 2a and the second L-shaped bar 2b self is welded together by gusset 4，During welding，The outer surface that must allow sleeve 104 is close to the first L-shaped bar 2a and the second L-shaped bar 2b inward flange，The junction of 2 positioning screw assemblies 1 and the first L-shaped bar 2a and the second L-shaped bar 2b is fastenedly connected by clamp assemblies 3，Clamp assemblies 3 includes clamping plate 301 and puller bolt 302，Clamping plate 301 are vertically welded on sleeve 104，During installation，By clamping plate 301 against、Clamp the junction of two L-shaped bars，The outer surface of sleeve 104 is close to the inward flange of two L-shaped bars，Tighten puller bolt 302 again，The general frame structure of such four positioning screw assemblies and rectangle support one similar bridge bearing of composition，Not only will not loosen but also be unlikely to deform，When being applied to the installation dimension of different bridge pad bolts，As long as unclamping puller bolt removal positioning screw assembly 1，Just can unclamp the contact surface that two L-shaped bars are mutually twisted，Adjust their relative position，Make the relative position between 2 positioning screw assemblies 1 and two position one_to_one corresponding (error is not more than 5mm) to corner bolt on bearing，In adjustment process，Keep the right-angle side Relative vertical of two L-shaped bars，After adjustment completes，Should allow the length of two L-shaped bar junctions immediately、Short tooth bar is mutually twisted together，And grasp one of them junction，Prevent this device size from changing，Two L-shaped bars are fastenedly connected by recycling clamp assemblies；
null4、Such as Figure 16、Shown in 17，Preformed hole casement is installed，Adjustment is lifted with hands、One side of assembled this good device，It is sidelong on operating platform，Four casement 5(PVC are managed) it is respectively mounted、It is fixed on the tensioning boots plate 108 of four positioning screw assemblies，When rotating clockwise the square toes 102 of positioning screw assembly with spanner，Top nut 106 and lower nut 114 can move to middle movable snap ring 112 respectively under the promotion of first paragraph screw thread 111 and second segment screw thread 113、Draw close，Drive connecting rod 109 to push out 4 tensioning boots plates 108 simultaneously、Increase its working diameter，Realize tensioning、The purpose of fixing casement，Additionally，As wanted to increase the frictional force between tensioning boots plate 108 and casement 5，Can on the two ends of tensioning boots plate 108 and intermediate sleeve the bicycle tube skin of same thickness，Or on the work surface of tensioning boots plate, anchor the wood lath etc. of same thickness；
5, this device being provided with casement is placed on the reinforced mesh of bridge pad, through twice measurement and positioning, the upper end arbitrarily choosing two positioning screw assemblies determines object for measuring, measure, location, find they positions in bearing reinforced mesh, adjust reinforced mesh again, allow this device and casement energy steadily, it is placed in bearing reinforced mesh exactly, then on the right-angle side of two L-shaped bars, arbitrarily select several points, this device and bearing external mold are propped up support system be fixed together, measurement and positioning again, check and approve the position coordinates of positioning screw assembly, just complete localizer with the installation of casement with fixing；
null6、Owing to this device is a general frame structure and centre is unlimited rectangular window，Install、It is fixed on above bearing reinforcing bar，Can be built by the gap that rectangular window or this device are peripheral、Vibrate bearing concrete，Without affecting bearing concreting、Vibrate，Building、Vibrate bearing concrete time，No matter vibrating head vibrates near which casement，This casement (is wrapped by concrete at four hole locators and other three casements、Relatively stable) common support under，Will not produce because of vibrated significantly to tilt or position skew，After concrete initial set，The square toes of positioning screw assembly are rotated counterclockwise with spanner，Draw tensioning boots plate in、Reduce its working diameter，Make it separate with casement and namely can be taken off this device，Complete carrier setting bolt preformed hole construction，Casement is pre-buried complete and position is accurate、Without hole flushing，Time saving and energy saving，In turn ensure that bearing installation quality.
nullThe present invention can according to the installation dimension of multiple bridge pad bolt，Adjust the first L-shaped bar and the relative position of the second L-shaped bar，Make the relative position and two the position one_to_one corresponding to corner bolt on bridge pad that are arranged between 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar right angle，The junction of the first L-shaped bar and the second L-shaped bar is connected by short tooth bar and long tooth bar，And firmly connected by other 2 positioning screw assemblies，Again 4 casements are respectively and fixedly installed on 4 positioning screw assemblies simultaneously，Become a rigidity entirety，Then whole device is placed in reinforced mesh，Arbitrarily select two positioning screw assembly measurement and positionings，Find its position in reinforced mesh，So only need to measure twice，Just the external mold that 4 casements are accurately fixedly mounted on bridge pad can be propped up on support system，Build、Vibrate in bearing Concrete，No matter vibrating head vibrates near which casement，This casement is under the common support of this device and other three casements，Will not produce because of being given a shock significantly to tilt or position skew，Reach the purpose of accurate positioning.
It should be appreciated that for those of ordinary skills, it is possible to improved according to the above description or converted, and all these are improved and convert the protection domain that all should belong to claims of the present invention.
Claims (8)
1. bridge pad preformed hole four hole positioning device, it is characterised in that this device includes:
Rectangle support, described rectangle support includes the first L-shaped bar and the second L-shaped bar, two right-angle sides of described first L-shaped bar are provided with horizontal short tooth bar, two right-angle sides of described second L-shaped bar are provided with longitudinal long tooth bar, it is connected by short tooth bar and long tooth bar between described first L-shaped bar and the second L-shaped bar, and is being internally formed a rectangular window；
4 positioning screw assemblies, described 4 positioning screw assemblies are separately mounted to 4 right angle of rectangular window, wherein 2 positioning screw assemblies are fixed with the right angle of the first L-shaped bar and the second L-shaped bar respectively and are connected, other 2 positioning screw assemblies removably connect with two junctions of the first L-shaped bar and the second L-shaped bar respectively, and described positioning screw assembly matches with casement.
2. device according to claim 1, it is characterized in that, described other 2 positioning screw assemblies are removably connected by two junctions of clamp assemblies and the first L-shaped bar and the second L-shaped bar, described clamp assemblies includes 2 clamping plate and the puller bolt being disposed therein on clamping plate, described 2 clamping plate are vertically mounted on positioning screw assembly, the thickness that the distance between described 2 clamping plate is superimposed be more than or equal to the first L-shaped bar and the second L-shaped bar.
3. device according to claim 1, it is characterized in that, described positioning screw assembly includes screw rod, top nut, movable snap ring, lower nut, tensioning boots plate and connecting rod, the outer surface of described screw rod is provided with oppositely oriented first paragraph screw thread and second segment screw thread, described top nut and first paragraph screw thread are screwed, described lower nut and second segment screw thread are screwed, described movable snap ring is arranged between first paragraph screw thread and second segment screw thread, described top nut, movable snap ring, lower nut is hinged respectively through connecting rod and tensioning boots plate, multiple described coaxial peripheries being arranged on screw rod of tensioning boots plate.
4. device according to claim 3, it is characterised in that the end of described screw rod is provided with rotating sleeve, and the two ends of described sleeve are spacing respectively through cover plate and fixed dam.
5. device according to claim 4, it is characterised in that the sleeve of described 2 positioning screw assemblies is respectively through the fixing connection of right angle of gusset and the first L-shaped bar and the second L-shaped bar.
6. device according to claim 3, it is characterised in that the two ends of described screw rod are provided with square toes.
7. device according to claim 1, it is characterised in that be respectively equipped with length scale on the joint face of described first L-shaped bar and the second L-shaped bar.
8. a bridge pad preformed hole four hole localization method, comprises the following steps:
S1, make bridge pad preformed hole four hole positioning device as claimed in claim 1；
nullS2、Device in S1 is kept flat on the operational platform，Installation dimension according to bridge pad bolt adjusts the size of this device，First dismantle other 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar junction，Unclamp the first L-shaped bar and joint face that the second L-shaped bar is mutually twisted，Adjust the first L-shaped bar and the relative position of the second L-shaped bar，Make the relative position and two the position one_to_one corresponding to corner bolt on bridge pad that are arranged between 2 positioning screw assemblies of the first L-shaped bar and the second L-shaped bar right angle，In adjustment process，Keeping the window within the first L-shaped bar and the second L-shaped bar is rectangle，After adjustment completes，It is connected by short tooth bar and long tooth bar between first L-shaped bar and the second L-shaped bar，Other 2 positioning screw assemblies are installed in junction，The first L-shaped bar and the second L-shaped bar is made firmly to connect；
S3, the device in S2 is sidelong on operating platform, makes 4 casements be respectively and fixedly installed on 4 positioning screw assemblies, complete the installation of casement with fixing；
S4, by S3 is provided with the device of casement steadily, exact placement is on the reinforced mesh of bridge pad, in device, the upper end of any two positioning screw assembly is measurement and positioning object, determine the two positioning screw assembly position in reinforced mesh, then this device is propped up with the external mold of bridge pad support system is fixing to be connected, again measures, the position coordinates of 4 positioning screw assemblies of approval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410650180.8A CN104389269B (en) | 2014-11-14 | 2014-11-14 | Bridge pad preformed hole four hole positioning device and method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410650180.8A CN104389269B (en) | 2014-11-14 | 2014-11-14 | Bridge pad preformed hole four hole positioning device and method |
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| Publication Number | Publication Date |
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| CN104389269A CN104389269A (en) | 2015-03-04 |
| CN104389269B true CN104389269B (en) | 2016-07-06 |
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| CN201410650180.8A Active CN104389269B (en) | 2014-11-14 | 2014-11-14 | Bridge pad preformed hole four hole positioning device and method |
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| AT413115B (en) * | 2003-11-03 | 2005-11-15 | Bitschnau Ag | Traveling bridge e.g. mountains footbridge, for crossing canyon, has elongated carrier pivotably connected around horizontal axis, and hole i.e. elongated hole interfused by bolts is arranged in arm or in elongated carrier |
| CN201362818Y (en) * | 2009-01-31 | 2009-12-16 | 江苏万宝桥梁构件有限公司 | Spherical rotation support saddle |
| KR20090047437A (en) * | 2009-04-22 | 2009-05-12 | 진성토건 주식회사 | Temporary bent |
| CN201713755U (en) * | 2009-12-24 | 2011-01-19 | 铁道第三勘察设计院集团有限公司 | Compression height-adjustment type curved steel support |
| CN101824802B (en) * | 2010-02-08 | 2014-04-30 | 铁道第三勘察设计院集团有限公司 | Site installation and debugging method of adjustable bridge steel support and matched steel support |
| CN101881002B (en) * | 2010-07-09 | 2012-09-26 | 中冶建工有限公司 | Temporary support seat for simply supporting bridge precast beam |
| JP5654528B2 (en) * | 2012-07-19 | 2015-01-14 | オリエンタル白石株式会社 | Precast floor slab and erection method of precast floor slab |
| CN102808376A (en) * | 2012-08-23 | 2012-12-05 | 新津腾中筑路机械有限公司 | Bridge rotation construction support and bridge construction method |
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