CN104389269A - Four-hole locating device and four-hole locating method for prepared holes of bridge support - Google Patents
Four-hole locating device and four-hole locating method for prepared holes of bridge support Download PDFInfo
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- CN104389269A CN104389269A CN201410650180.8A CN201410650180A CN104389269A CN 104389269 A CN104389269 A CN 104389269A CN 201410650180 A CN201410650180 A CN 201410650180A CN 104389269 A CN104389269 A CN 104389269A
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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 four-hole locating device for prepared holes of a bridge support. The four-hole locating device comprises a rectangular support and four locating screw rod assemblies, wherein the rectangular support comprises a first L-shaped rod and a second L-shaped rod, two right-angle edges of the first L-shaped rod are provided with short racks in the horizontal direction, two right-angle edges of the second L-shaped rod are provided with long racks in the longitudinal direction, the first L-shaped rod and the second L-shaped rod are connected through the short racks and the long racks in a meshing way, and a rectangular window is formed in inner space between the first L-shaped rod and the second L-shaped rod; the four locating screw rod assemblies are respectively arranged in four right-angle positions of the rectangular window, two of the locating screw rod assemblies are respectively and fixedly connected with right-angle positions of the first L-shaped rod and the second L-shaped rod, the other two of the locating screw rod assemblies are respectively and detachably connected with two connecting positions of the first L-shaped rod and the second L-shaped rod, and the locating screw rod assemblies are matched with hole dies. According to the four-hole locating device and the four-hole locating method disclosed by the invention, four hole dies can be simultaneously fixed, thus the four hole dies can be formed into a rigid whole, and position offset and position tilting of one signal hole die can be removed.
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 distortion (displacement and corner) can be passed to bridge substructure by reliably, thus the actual loading situation of structure is consistent with the theory of calculating is graphic.
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 employing 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 that single casement is through measurement and positioning, but more than one of the reinforcing bar together with its colligation, and can not these reinforcing bars all through measurement and positioning, adjust, cause casement in process of binding may produce position skew; 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 subject to vibrating easy run-off the straight; 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.Above three kinds of factors superposition, four casements can be caused to produce towards uncertain direction obviously tilt or position skew, and cannot correct after concreting, therefore before erection support, again must require measurement and positioning, hole flushing 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
The object of the present invention is to provide a kind of bridge pad preformed hole four hole positioning device and method, it can fix four casements simultaneously, becomes a rigid unitary, eliminates the skew of single casement position and tilts; And only need measure and just can be located for twice, be fixed in bearing external mold support system, simple operation, vibrated rod interference is less.
The technical solution adopted for the present invention to solve the technical problems is:
There is provided a kind of bridge pad preformed hole four hole positioning device, this device comprises:
Rectangle support, described rectangle support comprises a L shape bar and the 2nd L shape bar, two right-angle sides of a described L shape bar are provided with horizontal short tooth bar, two right-angle sides of described 2nd L shape bar are provided with longitudinal long tooth bar, be connected and form a rectangular window in inside between a described L shape bar and the 2nd L shape bar by short tooth bar and long tooth bar;
4 positioning screw assemblies, described 4 positioning screw assemblies are arranged on 4 right angle of rectangular window respectively, wherein 2 positioning screw assemblies are fixedly connected with the right angle of a L shape bar with the 2nd L shape bar respectively, other 2 positioning screw assemblies removably connect with two junctions of a L shape bar and the 2nd L shape 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 a L shape bar and the 2nd L shape bar, described clamp assemblies comprises 2 clamping plate and is arranged on the puller bolt on one of them clamping plate, described 2 clamping plate are vertically mounted on positioning screw assembly, and the distance between described 2 clamping plate is more than or equal to a L shape bar and the superimposed thickness of the 2nd L shape bar.
By technique scheme, described positioning screw assembly comprises screw rod, top nut, movable snap ring, lower nut, tensioning boots plate and connecting rod, the external surface of described screw rod is provided with the contrary first paragraph screw thread of rotation direction 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 respectively by connecting rod and tensioning boots plate hinged, multiple described coaxial periphery being arranged on screw rod of tensioning boots plate.
By technique scheme, the end of described screw rod is provided with rotating sleeve, the two ends of described sleeve respectively by cover plate and fixed dam spacing.
By technique scheme, the sleeve of described 2 positioning screw assemblies is fixedly connected with the right angle of a L shape bar with the 2nd L shape bar respectively by gusset.
By technique scheme, the two ends of described screw rod are provided with square toes.
By technique scheme, the joint face of a described L shape bar and the 2nd L shape bar is respectively equipped with length scale.
Accordingly, the invention provides a kind of bridge pad preformed hole four hole localization method, comprise the following steps:
S1, make bridge pad preformed hole four hole positioning device as claimed in claim 1;
S2, device in S1 is kept flat on the operational platform, the size of this device is adjusted according to the installation dimension of bridge pad bolt, first to dismantle other 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar junction, unclamp the joint face that a L shape bar and the 2nd L shape bar are engaged mutually, adjust the relative position of a L shape bar and the 2nd L shape bar, make to be arranged on two position one_to_one corresponding to corner bolt on relative position between 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar right angle and bridge pad, in adjustment process, the window keeping a L shape bar and the 2nd L shape bar inside is rectangle, after having adjusted, be connected by short tooth bar and long tooth bar between one L shape bar and the 2nd L shape bar, in junction, other 2 positioning screw assemblies are installed, one L shape bar is firmly connected with the 2nd L shape bar,
S3, the device in S2 is sidelong on operating platform, 4 casements are fixedly mounted on 4 positioning screw assemblies respectively, complete the installation of casement with fixing;
S4, by be provided with in S3 the device of casement steadily, exact placement is on the reinforced mesh of bridge pad, with the upper end of two positioning screw assemblies any in device for measurement and positioning object, determine this two positions of positioning screw assembly in reinforced mesh, then this device is fixedly connected with the external mold support system of bridge pad, again measures, check and approve the position coordinates of 4 positioning screw assemblies.
The beneficial effect that the present invention produces is: the present invention can according to the installation dimension of multiple bridge pad bolt, adjust the relative position of a L shape bar and the 2nd L shape bar, make to be arranged on two position one_to_one corresponding to corner bolt on relative position between 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar right angle and bridge pad, the junction of the one L shape bar and the 2nd L shape bar is connected by short tooth bar and long tooth bar, and firmly connected by other 2 positioning screw assemblies, again 4 casements are fixedly mounted on 4 positioning screw assemblies respectively simultaneously, become a rigid unitary, then whole device is placed in reinforced mesh, any selection two positioning screw assembly measurement and positionings, find its position in reinforced mesh, so only need measure twice, just can 4 casements be accurately fixedly mounted in the external mold support system of bridge pad, 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, can not produce because of being given a shock and significantly tilt or position skew, reach the object 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 along A-A line in 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 along B-B line in 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 along C-C line in Fig. 7;
Fig. 9 is the left view of Fig. 7;
Figure 10 is the structural representation of the L shape bar being installed with positioning screw assembly;
Figure 11 is the top view of Figure 10;
Figure 12 is the structural representation of the 2nd L shape 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: 1a-positioning screw assembly, 1b-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 one L shape bar, 2b-the 2nd L shape 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 object 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 only in order to explain the present invention, be 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 comprises:
Rectangle support, rectangle support comprises a L shape bar 2a and the 2nd L shape bar 2b, two right-angle sides of the one L shape bar 2a are provided with horizontal short tooth bar 201, two right-angle sides of the 2nd L shape bar 2b are provided with and are connected by short tooth bar 201 and long tooth bar 202 between longitudinal long tooth bar the 202, one L shape bar and the 2nd L shape bar and form a rectangular window in inside;
4 positioning screw assemblies, 4 positioning screw assemblies are arranged on 4 right angle of rectangular window respectively, wherein 2 positioning screw assembly 1a are fixedly connected with the right angle of the 2nd L shape bar 2b with a L shape bar 2a, two junctions of an other 2 positioning screw assembly 1b and L shape bar 2a and the 2nd L shape 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 an other 2 positioning screw assembly 1b and L shape bar 2a and the 2nd L shape bar 2b are removably connected by clamp assemblies 3, the puller bolt 302 that clamp assemblies 3 comprises 2 clamping plate 301 and is arranged on one of them clamping plate 301,2 clamping plate 301 are vertically mounted on positioning screw assembly 1b, and the distance between 2 clamping plate 301 is more than or equal to a L shape bar and the superimposed thickness of the 2nd L shape bar.When needing the size adjusting this device, first unclamp puller bolt, clamping plate are shifted out the junction of a L shape bar and the 2nd L shape bar, after having adjusted, clamp the junction of a L shape bar and the 2nd L shape bar again with clamping plate, and tighten puller bolt the one L shape bar and the 2nd L shape bar are fastenedly connected.
In a preferred embodiment of the invention, as Figure 16, shown in Figure 17, positioning screw assembly comprises screw rod 101, top nut 106, movable snap ring 112, lower nut 114, tensioning boots plate 108 and connecting rod 109, the external surface of screw rod 101 is provided with the contrary first paragraph screw thread 111 of rotation direction 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 by connecting rod 109 and tensioning boots plate 108, multiple coaxial periphery being arranged on screw rod 101 of tensioning boots plate 108.When casement is installed, casement is arranged on positioning screw assembly, toward a direction rotating screw bolt, because the rotation direction of first paragraph screw thread and second segment screw thread is contrary, 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 outwards to promote tensioning boots plate, increase its working diameter, realize tensioning, the object of fixing casement, after concrete initial set, toward counter-rotation screw rod, draw tensioning boots plate in, reduce its working diameter and just can unclamp casement, realize being separated 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, the two ends of sleeve 104 respectively by cover plate 103 and fixed dam 105 spacing.Screw rod and sleeve are rotatably installed, to realize screw rod rotation forward and reverse in sleeve.
In a preferred embodiment of the invention, as shown in Figure 10 ~ Figure 13, Figure 16, the sleeve 104 of 2 positioning screw assembly 1a is fixedly connected with the right angle of a L shape bar with the 2nd L shape bar respectively by gusset 4, can ensure the fastness connected, improve the application 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, just can rotary screw more easily.
In a preferred embodiment of the invention, the joint face of a L shape bar and the 2nd L shape bar being respectively equipped with length scale, when adjusting the size of this device, can directly measuring with the length scale on a L shape bar and the 2nd L shape bar, convenient and swift.
Accordingly, the present invention also provides 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;
S2, device in S1 is kept flat on the operational platform, the size of this device is adjusted according to the installation dimension of bridge pad bolt, first to dismantle other 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar junction, unclamp the joint face that a L shape bar and the 2nd L shape bar are engaged mutually, adjust the relative position of a L shape bar and the 2nd L shape bar, make to be arranged on two position one_to_one corresponding to corner bolt on relative position between 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar right angle and bridge pad, in adjustment process, the window keeping a L shape bar and the 2nd L shape bar inside is rectangle, after having adjusted, be connected by short tooth bar and long tooth bar between one L shape bar and the 2nd L shape bar, in junction, other 2 positioning screw assemblies are installed, one L shape bar is firmly connected with the 2nd L shape bar,
S3, the device in S2 is sidelong on operating platform, 4 casements are fixedly mounted on 4 positioning screw assemblies respectively, complete the installation of casement with fixing;
S4, by be provided with in S3 the device of casement steadily, exact placement is on the reinforced mesh of bridge pad, with the upper end of two positioning screw assemblies any in device for measurement and positioning object, determine this two positions of positioning screw assembly in reinforced mesh, then this device is fixedly connected with the external mold support system of bridge pad, again measures, check and approve the position coordinates of 4 positioning screw assemblies.
Operating principle of the present invention is: according to the installation dimension requirement of multiple bridge pad bolt, four of bearing preformed hole casements are fixedly mounted in a likeness in form bridge pad, facilitate assembled, peace is torn open, can on reusable general frame structure i.e. this device, by means of only twice measurement and positioning, just four of a bridge pad preformed hole casement accurately can be installed, be 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, can not be produced because of vibrating and significantly tilt or position skew, reach the object of accurate positioning; After concrete initial set, unclamp four positioning screws, make it be separated with casement and can take out four hole locators; The pre-buried complete and position of casement accurately, without the need to hole flushing, time saving and energy saving, in turn ensure that bearing installation quality.
The advantage of this device is: can fix four casements simultaneously, forms a rigid unitary, eliminates the skew of single casement position and tilts; Only need twice measurement just can be located, be fixed in bearing external mold support system, simple operation, vibrated rod interference is less; The size of this device can adjust, and can match with the installation dimension of multiple bridge pad bolt.
Specific practice of the present invention is:
1, 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, first fixedly mounts fixed dam 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, then cover plate 103 is sleeved on the upper end of sleeve 104, be positioned on the square toes 102 of screw rod 101, then install, tighten the assembling that namely cover screw 115 completes 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, and two sections of screw thread centre movable snap rings 112 are isolated, top nut 106, lower nut 114, the appearance and size of movable snap ring 112 is identical, just in order to easy to assembly, top nut 106, movable snap ring 112 is processed into two panels, half-open assembly, top nut, lower nut, hinged with connecting rod 109 between movable snap ring and tensioning boots plate 108, be 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 a L shape bar 2a and the 2nd L shape bar 2b, the appearance and size of two L shape bars is basically identical, the length of their right-angle sides is generally 110cm(because the location dimension of bridge pad four bolts is generally no more than 60x110cm), in order to increase integrally-built rigidity, two L shape bars adopt L-type steel to do, relative sliding is produced in order to prevent two L shape bar junctions, the plane of their two right-angle sides processes bar shaped zigzag, tooth pitch, tooth depth is all not more than 5mm, the short tooth bar 201 that wherein on a L shape bar 2a, processing is vertical with right-angle side, the long tooth bar 202 that on 2nd L shape bar 2b, processing is parallel with right-angle side, long, the shape of short tooth bar is all identical with size, tooth bar machining area is the inside 65cm in outer end of right-angle side,
3, as shown in Fig. 1 ~ Fig. 9, assemble this device, assembled with a L shape bar 2a and the 2nd L shape bar 2b, be fixed into a rectangle support, centre is unlimited rectangular window, it is identical that four right angle in intermediate rectangular window install a direction respectively, perpendicular to positioning screw assembly 1a or the positioning screw assembly 1b of angle square, in order to easy to assembly, the right angle of a 2 positioning screw assembly 1a and L shape bar 2a and the 2nd L shape bar 2b self is welded together by gusset 4, during welding, the external surface of sleeve 104 must be allowed to be close to a L shape bar 2a and the 2nd L shape bar 2b inward flange, the junction of a 2 positioning screw assembly 1b and L shape bar 2a and the 2nd L shape bar 2b is fastenedly connected by clamp assemblies 3, clamp assemblies 3 comprises clamping plate 301 and puller bolt 302, clamping plate 301 are vertically welded on sleeve 104, during installation, by clamping plate 301 near, clamp the junction of two L shape bars, the external surface of sleeve 104 is close to the inward flange of two L shape bars, tighten puller bolt 302 again, such four positioning screw assemblies and rectangle support form the general frame structure of a similar bridge bearing, not only can not loosen but also not yielding, when being applied to the installation dimension of different bridge pad bolts, as long as unclamp puller bolt to shift out positioning screw assembly 1b, just can unclamp the contact surface that two L shape bars are engaged mutually, adjust their relative position, make two position one_to_one corresponding (error is not more than 5mm) to corner bolt on relative position between 2 positioning screw assembly 1a and bearing, in adjustment process, keep the right-angle side Relative vertical of two L shape bars, after having adjusted, should allow the length of two L shape bar junctions immediately, short tooth bar is interlocked mutually, and grasp one of them junction, prevent this device size from changing, two L shape bars are fastenedly connected by recycling clamp assemblies,
4, as Figure 16, shown in 17, preformed hole casement is installed, adjustment is lifted with hand, one side of assembled this good device, be sidelong on operating platform, four casement 5(PVC are managed) install respectively, be 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 by the movable snap ring 112 respectively to centre under the promotion of first paragraph screw thread 111 and second segment screw thread 113, draw close, drive connecting rod 109 outwards to promote 4 tensioning boots plates 108 simultaneously, increase its working diameter, realize tensioning, the object of fixing casement, in addition, the frictional force between tensioning boots plate 108 and casement 5 is increased as wanted, can on the two ends of tensioning boots plate 108 and intermediate sleeve the bicycle tube skin of same thickness, or on the work plane of tensioning boots plate the wood lath etc. of anchoring 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 choosing arbitrarily two positioning screw assemblies determines object for measuring, measure, location, find their positions in bearing reinforced mesh, adjust reinforced mesh again, allow this device and casement energy steadily, be placed in bearing reinforced mesh exactly, then on the right-angle side of two L shape bars, several point is selected arbitrarily, this device and bearing external mold support system are fixed together, measurement and positioning again, check and approve the position coordinates of positioning screw assembly, just complete the installation of locator and casement with fixing,
6, unlimited rectangular window because this device is a general frame structure and centre, install, be fixed on above bearing reinforcing bar, can be built by the gap of rectangular window or this device periphery, vibrate bearing concrete, and bearing concreting can not be affected, 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, can not be produced because of vibrating and significantly 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 be separated with casement and can take out this device, complete carrier setting bolt preformed hole construction, casement is pre-buried complete and position is accurate, without the need to hole flushing, time saving and energy saving, in turn ensure that bearing installation quality.
The present invention can according to the installation dimension of multiple bridge pad bolt, adjust the relative position of a L shape bar and the 2nd L shape bar, make to be arranged on two position one_to_one corresponding to corner bolt on relative position between 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar right angle and bridge pad, the junction of the one L shape bar and the 2nd L shape bar is connected by short tooth bar and long tooth bar, and firmly connected by other 2 positioning screw assemblies, again 4 casements are fixedly mounted on 4 positioning screw assemblies respectively simultaneously, become a rigid unitary, then whole device is placed in reinforced mesh, any selection two positioning screw assembly measurement and positionings, find its position in reinforced mesh, so only need measure twice, just can 4 casements be accurately fixedly mounted in the external mold support system of bridge pad, 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, can not produce because of being given a shock and significantly tilt or position skew, reach the object of accurate positioning.
Should be understood that, for those of ordinary skills, can be improved according to the above description or convert, and all these improve 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, is characterized in that, this device comprises:
Rectangle support, described rectangle support comprises a L shape bar and the 2nd L shape bar, two right-angle sides of a described L shape bar are provided with horizontal short tooth bar, two right-angle sides of described 2nd L shape bar are provided with longitudinal long tooth bar, be connected and form a rectangular window in inside between a described L shape bar and the 2nd L shape bar by short tooth bar and long tooth bar;
4 positioning screw assemblies, described 4 positioning screw assemblies are arranged on 4 right angle of rectangular window respectively, wherein 2 positioning screw assemblies are fixedly connected with the right angle of a L shape bar with the 2nd L shape bar respectively, other 2 positioning screw assemblies removably connect with two junctions of a L shape bar and the 2nd L shape 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 a L shape bar and the 2nd L shape bar, described clamp assemblies comprises 2 clamping plate and is arranged on the puller bolt on one of them clamping plate, described 2 clamping plate are vertically mounted on positioning screw assembly, and the distance between described 2 clamping plate is more than or equal to a L shape bar and the superimposed thickness of the 2nd L shape bar.
3. device according to claim 1, it is characterized in that, described positioning screw assembly comprises screw rod, top nut, movable snap ring, lower nut, tensioning boots plate and connecting rod, the external surface of described screw rod is provided with the contrary first paragraph screw thread of rotation direction 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 respectively by connecting rod and tensioning boots plate hinged, multiple described coaxial periphery being arranged on screw rod of tensioning boots plate.
4. device according to claim 3, is characterized in that, the end of described screw rod is provided with rotating sleeve, the two ends of described sleeve respectively by cover plate and fixed dam spacing.
5. device according to claim 4, is characterized in that, the sleeve of described 2 positioning screw assemblies is fixedly connected with the right angle of a L shape bar with the 2nd L shape bar respectively by gusset.
6. device according to claim 3, is characterized in that, the two ends of described screw rod are provided with square toes.
7. device according to claim 1, is characterized in that, the joint face of a described L shape bar and the 2nd L shape bar is respectively equipped with length scale.
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;
S2, device in S1 is kept flat on the operational platform, the size of this device is adjusted according to the installation dimension of bridge pad bolt, first to dismantle other 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar junction, unclamp the joint face that a L shape bar and the 2nd L shape bar are engaged mutually, adjust the relative position of a L shape bar and the 2nd L shape bar, make to be arranged on two position one_to_one corresponding to corner bolt on relative position between 2 positioning screw assemblies of a L shape bar and the 2nd L shape bar right angle and bridge pad, in adjustment process, the window keeping a L shape bar and the 2nd L shape bar inside is rectangle, after having adjusted, be connected by short tooth bar and long tooth bar between one L shape bar and the 2nd L shape bar, in junction, other 2 positioning screw assemblies are installed, one L shape bar is firmly connected with the 2nd L shape bar,
S3, the device in S2 is sidelong on operating platform, 4 casements are fixedly mounted on 4 positioning screw assemblies respectively, complete the installation of casement with fixing;
S4, by be provided with in S3 the device of casement steadily, exact placement is on the reinforced mesh of bridge pad, with the upper end of two positioning screw assemblies any in device for measurement and positioning object, determine this two positions of positioning screw assembly in reinforced mesh, then this device is fixedly connected with the external mold support system of bridge pad, again measures, check and approve the position coordinates of 4 positioning screw assemblies.
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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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| Application Number | Priority Date | Filing Date | Title |
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| CN201410650180.8A CN104389269B (en) | 2014-11-14 | 2014-11-14 | Bridge pad preformed hole four hole positioning device and method |
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| CN104389269A true CN104389269A (en) | 2015-03-04 |
| CN104389269B CN104389269B (en) | 2016-07-06 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117127462A (en) * | 2023-10-26 | 2023-11-28 | 中交第一航务工程局有限公司 | Highway engineering ramming device |
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| 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 |
| 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 |
| JP2014020137A (en) * | 2012-07-19 | 2014-02-03 | Oriental Shiraishi Corp | Precast floor slab and erection method of precast floor slab |
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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 |
| CN101824802A (en) * | 2010-02-08 | 2010-09-08 | 铁道第三勘测设计院集团有限公司 | Site installation and debugging method of adjustable bridge steel support and matched steel support |
| CN101881002A (en) * | 2010-07-09 | 2010-11-10 | 中冶建工有限公司 | Temporary support seat for simply supporting bridge precast beam |
| JP2014020137A (en) * | 2012-07-19 | 2014-02-03 | Oriental Shiraishi Corp | 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 |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117127462A (en) * | 2023-10-26 | 2023-11-28 | 中交第一航务工程局有限公司 | Highway engineering ramming device |
| CN117127462B (en) * | 2023-10-26 | 2024-02-09 | 中交第一航务工程局有限公司 | Highway engineering ramming device |
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|---|---|
| CN104389269B (en) | 2016-07-06 |
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