CN211596435U - Straight web cast-in-place box girder formwork - Google Patents
Straight web cast-in-place box girder formwork Download PDFInfo
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- CN211596435U CN211596435U CN201922363915.XU CN201922363915U CN211596435U CN 211596435 U CN211596435 U CN 211596435U CN 201922363915 U CN201922363915 U CN 201922363915U CN 211596435 U CN211596435 U CN 211596435U
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Abstract
The utility model discloses a straight web cast-in-place box girder formwork, which comprises a bottom formwork component, a side formwork component, a connecting component and a brace rod component; the bottom die assembly comprises a bottom die main beam, bottom die secondary beams and a bottom template, wherein the bottom die secondary beams are parallel to each other and distributed on the bottom die main beam along the length direction of the bottom die main beam, and the bottom template is laid on the bottom die secondary beams; the side die assembly comprises side die main beams, side die secondary beams and side die plates, wherein the side die secondary beams are parallel to each other and distributed on the side die main beams along the length direction of the side die main beams, and the side die plates are laid on the side die secondary beams; the connecting assembly comprises a horizontal adjusting mechanism and a vertical adjusting mechanism which are respectively arranged on the bottom die main beam, one end of the vertical adjusting mechanism is connected with the horizontal adjusting mechanism, and the top of the vertical adjusting mechanism is connected with the side die main beam; the stay bar component is detachably connected between the bottom die main beam and the side die main beam. Horizontal adjustment mechanism and vertical adjustment mechanism realize the position control of two directions of side form subassembly to satisfy the construction requirement of different roof beam sizes, do benefit to and improve construction quality and reduce construction cost.
Description
Technical Field
The utility model belongs to the technical field of cast-in-place box girder construction, especially, relate to a cast-in-place box girder die carrier of straight web.
Background
With the promotion of large-scale infrastructure construction in China, road and bridge construction has drawn attention and has been achieved, a series of standards and specifications are formed from bridge design to construction, and a large amount of construction experience is accumulated. The direct web cast-in-place box girder is reliable in connection with the member, good in structural integrity, simple to construct and widely applied to highway bridges. At present, a conventional formwork system is adopted in cast-in-place construction, but the formwork system cannot meet the requirements of appearance quality, energy conservation and environmental protection; on the other hand, because the concrete pouring lateral force of the straight web bridge is large, the requirements of the pouring lateral force of different straight web cast-in-place box girders on the section sizes of different formwork systems are different, the existing formwork systems are difficult to be suitable for the box girders with different sizes, the universality is poor, and the construction quality and the construction cost of the straight web cast-in-place box girders are influenced.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to prior art's weak point, a cast-in-place case roof beam die carrier of straight web that the commonality is good is provided.
The utility model provides a straight web cast-in-place box girder die carrier, which comprises a bottom die component, a side die component, a connecting component and a brace rod component; the bottom die assembly comprises a bottom die main beam, bottom die secondary beams and a bottom template, wherein the bottom die secondary beams are parallel to each other and distributed on the bottom die main beam along the length direction of the bottom die main beam, and the bottom template is laid on the bottom die secondary beams; the side die assembly comprises side die main beams, side die secondary beams and side die plates, wherein the side die secondary beams are parallel to each other and distributed on the side die main beams along the length direction of the side die main beams, and the side die plates are laid on the side die secondary beams; the connecting assembly comprises a horizontal adjusting mechanism and a vertical adjusting mechanism which are respectively arranged on the bottom die main beam, one end of the vertical adjusting mechanism is connected with the horizontal adjusting mechanism, and the top of the vertical adjusting mechanism is connected with the side die main beam; the stay bar component is detachably connected between the bottom die main beam and the side die main beam.
In one specific embodiment, the horizontal adjusting mechanism comprises a horizontal fixing seat, a horizontal screw rod and a nut; the horizontal fixing seat comprises a mounting plate, a flat plate and a vertical plate, wherein the mounting plate is provided with a mounting hole and is fixedly connected below the bottom surface of the flat plate, the vertical plate is provided with an adjusting hole, and the vertical plate is connected to the top surface of the flat plate; the nut is connected to the position of the adjusting hole outside the vertical plate, and the horizontal screw rod is screwed into the nut and penetrates through the adjusting hole to be connected with the vertical adjusting mechanism.
Preferably, the vertical adjusting mechanism comprises a base plate, a clamping plate, a nut seat, an ear plate and a vertical screw rod; the middle part of the substrate is provided with a through hole, and two sides of the substrate are provided with strip-shaped grooves; the clamp plate can be detached from the strip-shaped groove, the nut seat is coaxially arranged at the through hole, the pair of lug plates are arranged on the base plate, one end of each lug plate is connected with the nut seat, the other end of each lug plate is connected with the horizontal screw rod, and the vertical screw rod is connected in the threaded seat and the top end of each lug plate is connected with the side mold main beam.
Furthermore, the horizontal screw rod and the vertical screw rod have the same structure, and one end of the horizontal screw rod and one end of the vertical screw rod are provided with a through hole; the top of vertical lead screw links to each other through the fastener that passes the through-hole with the bottom of web girder, and horizontal lead screw through pass the fastener of through-hole with the otic placode links to each other.
The side die main beams are of two types, one type is a web main beam, and the other type is a flange plate main beam; the bottom of web girder links to each other with vertical adjustment mechanism, and the top passes through the chamfer connecting piece and links to each other with the flange board girder, and the other end of flange board girder is equipped with the guardrail outward.
The structure homogeneous phase of die block girder, web girder and flange board girder is the same, including a pair of channel-section steel that sets up dorsad, is equipped with the pilot hole on the web of channel-section steel.
The chamfer connecting piece comprises a rectangular pipe and a connecting lug, a positioning hole is formed in the rectangular pipe, a hinge hole is formed in the connecting lug, the connecting lug is welded outside the rectangular pipe, the bottom end of the rectangular pipe is connected with the web main beam, the top end of the rectangular pipe is connected with the flange plate main beam, and the connecting lug is hinged with the support rod assembly.
The guardrail comprises vertical rods, hooks, protective rods and connecting plates, wherein the vertical rods are arranged in parallel, the hooks are connected to one sides of the vertical rods, the protective rods are horizontally placed in the hooks, and the connecting plates are connected to the bottoms of the vertical rods and located on the opposite sides of the hooks; the guardrail is installed in the outer end of flange board girder through the connecting plate.
In order to keep the guardrail vertical, the connecting plate is a rectangular plate, an arc waist-shaped hole is formed in the connecting plate, and the connecting plate is locked with the flange plate main beam through a fastener penetrating through the arc waist-shaped hole.
In a specific embodiment, the bottom die secondary beam comprises a support and battens, wherein the top end of the support is provided with a containing groove, and the battens are arranged in the containing groove and are connected with the bottom die plate.
The utility model discloses when dropping into the use, prop up earlier the scaffold frame, then install the die block girder on the support of the top of scaffold frame, arranging die block secondary beam, the die block board, then through coupling assembling and vaulting pole unit mount side form subassembly, accessible horizontal adjustment mechanism and vertical adjustment mechanism realize the position control of two directions of side form subassembly in the installation to satisfy the construction requirement of different roof beam sizes, the commonality is good, do benefit to the construction quality and the reduction construction cost that improve the cast-in-place case roof beam of straight web.
Drawings
Fig. 1 is a schematic view of a preferred embodiment of the present invention in use.
Fig. 2 is an enlarged schematic view of the bottom die assembly in the preferred embodiment.
Fig. 3 is an enlarged schematic view of the side die assembly in the preferred embodiment.
Fig. 4 is an enlarged schematic view of the guard rail in the preferred embodiment.
Fig. 5 is a front enlarged view of the connecting assembly in the preferred embodiment.
Fig. 6 is an enlarged side view of the connecting assembly in the preferred embodiment.
Sequence numbers of the drawings:
1-bottom die assembly, 11-bottom die main beam, 12-bottom die secondary beam, 13-bottom template and 14-main beam connecting piece;
2-side die assembly, 21-web main beam, 22-flange plate main beam, 23-chamfer connecting piece, 24-side die secondary beam and 25-side die plate;
3-a connecting component is arranged on the base,
31-a horizontal adjusting mechanism, 311-a horizontal fixed seat, 312-a horizontal screw rod, 313-a nut,
32-vertical adjusting mechanism, 321-base plate, 322-clamping plate, 323-nut seat, 324-lug plate and 325-vertical screw rod;
4-a strut assembly;
5-guardrail, 51-vertical bar, 52-hook, 53-guard bar, 54-connecting plate;
6, steel pipes;
a, a scaffold; b, overhanging protective frame; c, a scaffold board.
Detailed Description
As shown in fig. 1, the straight web cast-in-place box girder formwork disclosed in this embodiment is used with a scaffold a, and includes a bottom formwork assembly 1, a side formwork assembly 2, a connecting assembly 3, and a brace assembly 4.
As shown in fig. 2, the bottom mold assembly 1 includes a bottom mold main beam 11, a bottom mold sub beam 12, and a bottom mold plate 13. The bottom die main beam 11 is spliced by double-spliced channel steel, the pair of channel steel is arranged in a back-to-back mode, full holes are machined in a web plate of the channel steel for connection, every 5 holes are in one group, a large hole is arranged in the middle and serves as a pin shaft hole, and 4 small holes are symmetrically distributed in a cross mode by taking the large hole as the center and are bolt connection holes. Two adjacent bottom die main beams 11 are connected through main beam connecting pieces 14, the main beam connecting pieces 14 are rectangular tubes, and bolt connecting holes and pin shaft holes corresponding to the main beams are processed on the rectangular tubes for assembly. The bottom die secondary beam 12 comprises a support and battens, wherein the top end of the support is provided with a containing groove, and the battens are arranged in the containing groove. The bottom template 13 is laid on the bottom template secondary beam and is tightly nailed with the batten through iron nails. And after the bottom die assembly 1 is installed, the side die assembly is installed through the connecting assembly 3.
As shown in fig. 3, the side mold assembly 2 includes side mold main beams, side mold sub-beams, and side mold plates. The side die main beams comprise a web plate main beam 21 and a flange plate main beam 22, the web plate main beam and the flange plate main beam are connected through a chamfer connecting piece 23, the chamfer connecting piece 23 consists of a rectangular tube and an ear plate welded with a hole in the rectangular tube, the rectangular tube is provided with symmetrical bolt holes and pin shaft holes for connecting the web plate main beam and the flange plate main beam, and the ear plate is used for connecting and fixing the strut assembly 4; and assemble guardrail 5 outside flange board girder 22 in order to improve the operation security, as shown in fig. 4, guardrail 5 includes montant 51, couple 52, guard bar 53 and connecting plate 54, the connecting plate is the rectangular plate, be equipped with arc waist type hole on it, the connecting plate is through passing fastener and the locking of flange board girder in arc waist type hole, the guardrail straightness that hangs down is adjusted through the arc waist type hole of the connecting plate of welding on the guardrail, the guardrail keeps vertical direction all the time when guaranteeing the flange board of different angles, each montant is arranged side by side, the couple is connected in one side of montant, the guard bar level is placed in the couple, the connecting plate is connected in the bottom of montant, be located the offside of couple, play the effect of safety protection. The side-form secondary beam 24 is lapped on the side-form main beam along the bridge direction in a staggered manner and is bound and fixed by adopting iron wires, and the side-form plate 25 is fully paved on the side-form secondary beam and is fixed by nailing; the side die assembly is arranged on the bottom die assembly 1 through the connecting assembly 3 and the supporting rod assembly 4.
As shown in fig. 5 and 6, the connecting assembly 3 includes a horizontal adjusting mechanism 31 and a vertical adjusting mechanism 32; horizontal adjustment mechanism 31 includes horizontal fixing base 311, horizontal lead screw 312 and nut 313, and horizontal fixing base includes mounting panel, flat board and riser, establishes the mounting hole on the mounting panel, and the mounting panel rigid coupling establishes the regulation hole under dull and stereotyped bottom surface on the riser, and the riser is connected on dull and stereotyped top surface, and the nut is connected in the outer regulation hole position department of riser, and horizontal lead screw twists and passes behind the regulation hole in the nut and link to each other with vertical adjustment mechanism 32. The vertical adjusting mechanism 32 comprises a base plate 321, a clamping plate 322, a nut seat 323, an ear plate 324 and a vertical screw rod 325; the middle part of the substrate is provided with a through hole, and two sides of the substrate are provided with strip-shaped grooves; the clamp plate can be detached from the strip-shaped groove, the nut seat is coaxially arranged at the through hole, the pair of lug plates are arranged on the base plate, one end of each lug plate is connected with the nut seat, the other end of each lug plate is connected with the horizontal screw rod, and the vertical screw rod is connected in the threaded seat and the top end of each lug plate is connected with the side mold main beam. The horizontal screw rod and the vertical screw rod have the same structure, and one end of the horizontal screw rod and one end of the vertical screw rod are provided with through holes; the top of vertical lead screw links to each other through the fastener that passes the through-hole with the bottom of web girder, and horizontal lead screw links to each other through the fastener that passes the through-hole with the otic placode. When the device is installed, a nut seat is welded on the base plate, and the top end of the vertical screw rod is connected with the web main beam to drive the web main beam to lift, so that the position of the vertical screw rod in the height direction is adjusted; one end of the horizontal screw rod is hinged with the lug plate through a pin shaft, the other end of the horizontal screw rod realizes horizontal position adjustment through a matched nut, the horizontal fixing seat and a web plate hole of the bottom die main beam are fixed through the pin shaft and the implementation, and the vertical adjusting screw rod and the horizontal adjusting screw rod realize stepless adjustment in two directions, so that the construction requirements of different beam sizes are met, and the horizontal screw rod can be used for bearing certain concrete pouring lateral force.
As shown in fig. 1, in the present embodiment, the strut assemblies 4 are arranged at different positions, the bottom ends of the strut assemblies are hinged to the bottom plate main beam through pins, and the top ends of the strut assemblies are hinged to the web plate main beam or the flange plate main beam or the chamfer connecting piece through pins; and the support rod assemblies in the same direction are buckled on the screw rods of the support rod assemblies in the beam direction by adopting steel pipes 6, so that the longitudinal multi-beam connection and fixation are realized, and the rigidity and the integral stability of the side mold support are improved.
When the scaffold A is put into use, the scaffold A is erected to the designed elevation, the cantilever protection frame B is erected, and the cantilever protection frame is fully paved with the scaffold boards C along the beam direction for operation and walking of operators. Checking and accepting the bracket for the first time; after the acceptance check is finished, the bottom die girder is spliced on site by adopting the girder connecting piece and the bolt, the bottom die girder is directly hoisted to the upper part of the scaffold to be installed after the splicing is finished, and the elevation of the upper surface of the bottom die girder is confirmed through the acceptance check again. Secondly, uniformly laying bottom die secondary beams on the bottom die main beam, determining the distance according to the calculated distance, overlapping the bottom die secondary beams on the bottom die main beam along the direction of the bridge, fully laying a bottom template on the upper part, nailing and fixing the bottom template and the bottom die secondary beams, checking and accepting the bottom template, integrally checking and accepting the scaffold, the bottom die main beam, the bottom die secondary beams and the bottom template during checking and accepting, carrying out preloading according to a preloading scheme, and adjusting the elevation of the bottom die after the preloading is finished; and then, mounting a side die assembly, determining the transverse position of the horizontal fixing seat firstly during mounting, fixing the horizontal fixing seat on a bottom die main beam by adopting a bolt and a pin shaft, mounting a web plate main beam and a flange plate main beam, adjusting the height of the web plate main beam by adopting a vertical screw rod, hinging the web plate main beam and the flange plate main beam by adopting a pin shaft, connecting the flange plate main beam and the web plate main beam by adopting a chamfering connecting piece, wherein the flange plate main beam and the chamfering connecting piece main beam are hinged by adopting the pin shaft, and the web plate main beam is fixedly. Then install the vaulting pole subassembly, both ends adopt the round pin axle to articulate respectively and connect, and wherein web girder upper end vaulting pole subassembly one end adopts the round pin axle to articulate each other with the otic placode of chamfer connecting piece, and the vaulting pole subassembly provides concrete placement yawing force and supports and flange board position load and support. And then, the screw rods of the stay bar assemblies are fastened and fixed by fasteners along the bridge direction by adopting steel pipes, so that the longitudinal integral rigidity and stability of the side mold are improved. And then the guardrail is installed, the guardrail and the flange plate main beam are fixed by bolts, the verticality of the guardrail is adjusted by the arc waist-shaped hole of the connecting plate welded on the guardrail, so that the guardrail always keeps a vertical direction when the flange plates with different angles are ensured, and a steel pipe is placed in a clamping groove welded with the guardrail along the bridge direction, so that the safety protection effect is realized. And mounting a side form secondary beam, overlapping the side form secondary beam on the side form main beam along the bridge direction in a staggered manner, binding and fixing the side form secondary beam with the side form main beam by adopting iron wires, and fully paving the side form plate on the side form secondary beam and fixing the side form plate by adopting nails. And (5) carrying out integral acceptance inspection after the installation is finished.
Claims (10)
1. The utility model provides a cast-in-place case roof beam die carrier of straight web which characterized in that: the die comprises a bottom die assembly, a side die assembly, a connecting assembly and a support rod assembly;
the bottom die assembly comprises a bottom die main beam, bottom die secondary beams and a bottom template, wherein the bottom die secondary beams are parallel to each other and distributed on the bottom die main beam along the length direction of the bottom die main beam, and the bottom template is laid on the bottom die secondary beams;
the side die assembly comprises side die main beams, side die secondary beams and side die plates, wherein the side die secondary beams are parallel to each other and distributed on the side die main beams along the length direction of the side die main beams, and the side die plates are laid on the side die secondary beams;
the connecting assembly comprises a horizontal adjusting mechanism and a vertical adjusting mechanism which are respectively arranged on the bottom die main beam, one end of the vertical adjusting mechanism is connected with the horizontal adjusting mechanism, and the top of the vertical adjusting mechanism is connected with the side die main beam;
the stay bar component is detachably connected between the bottom die main beam and the side die main beam.
2. The straight web cast-in-place box girder formwork of claim 1, wherein: the horizontal adjusting mechanism comprises a horizontal fixing seat, a horizontal lead screw and a nut; the horizontal fixing seat comprises a mounting plate, a flat plate and a vertical plate, wherein the mounting plate is provided with a mounting hole and is fixedly connected below the bottom surface of the flat plate, the vertical plate is provided with an adjusting hole, and the vertical plate is connected to the top surface of the flat plate; the nut is connected to the position of the adjusting hole outside the vertical plate, and the horizontal screw rod is screwed into the nut and penetrates through the adjusting hole to be connected with the vertical adjusting mechanism.
3. The straight web cast-in-place box girder formwork of claim 2, wherein: the vertical adjusting mechanism comprises a base plate, a clamping plate, a nut seat, an ear plate and a vertical screw rod; the middle part of the substrate is provided with a through hole, and two sides of the substrate are provided with strip-shaped grooves; the clamp plate can be detached from the strip-shaped groove, the nut seat is coaxially arranged at the through hole, the pair of lug plates are arranged on the base plate, one end of each lug plate is connected with the nut seat, the other end of each lug plate is connected with the horizontal screw rod, and the vertical screw rod is connected in the threaded seat and the top end of each lug plate is connected with the side mold main beam.
4. The formwork of claim 3, wherein: the horizontal screw rod and the vertical screw rod have the same structure, and one end of the horizontal screw rod is provided with a through hole; the top of vertical lead screw links to each other through the fastener that passes the through-hole with the bottom of web girder, and horizontal lead screw through pass the fastener of through-hole with the otic placode links to each other.
5. The straight web cast-in-place box girder formwork of claim 1 or 3, wherein: the side die main beams are of two types, one type is a web main beam, and the other type is a flange plate main beam; the bottom of web girder links to each other with vertical adjustment mechanism, and the top passes through the chamfer connecting piece and links to each other with the flange board girder, and the other end of flange board girder is equipped with the guardrail outward.
6. The formwork of claim 5, wherein: the structure homogeneous phase of die block girder, web girder and flange board girder is the same, including a pair of channel-section steel that sets up dorsad, is equipped with the pilot hole on the web of channel-section steel.
7. The formwork of claim 5, wherein: the chamfer connecting piece comprises a rectangular pipe and a connecting lug, a positioning hole is formed in the rectangular pipe, a hinge hole is formed in the connecting lug, the connecting lug is welded outside the rectangular pipe, the bottom end of the rectangular pipe is connected with the web main beam, the top end of the rectangular pipe is connected with the flange plate main beam, and the connecting lug is hinged with the support rod assembly.
8. The formwork of claim 5, wherein: the guardrail comprises vertical rods, hooks, protective rods and connecting plates, wherein the vertical rods are arranged in parallel, the hooks are connected to one sides of the vertical rods, the protective rods are horizontally placed in the hooks, and the connecting plates are connected to the bottoms of the vertical rods and located on the opposite sides of the hooks; the guardrail is installed in the outer end of flange board girder through the connecting plate.
9. The straight web cast-in-place box girder formwork of claim 8, wherein: the connecting plate is a rectangular plate, an arc waist-shaped hole is formed in the connecting plate, and the connecting plate is locked with the flange plate main beam through a fastener penetrating through the arc waist-shaped hole.
10. The straight web cast-in-place box girder formwork of claim 1, wherein: the bottom die secondary beam comprises a support and battens, the top end of the support is provided with a containing groove, and the battens are arranged in the containing groove and are connected with the bottom die plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363915.XU CN211596435U (en) | 2019-12-25 | 2019-12-25 | Straight web cast-in-place box girder formwork |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922363915.XU CN211596435U (en) | 2019-12-25 | 2019-12-25 | Straight web cast-in-place box girder formwork |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211596435U true CN211596435U (en) | 2020-09-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922363915.XU Active CN211596435U (en) | 2019-12-25 | 2019-12-25 | Straight web cast-in-place box girder formwork |
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| CN (1) | CN211596435U (en) |
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- 2019-12-25 CN CN201922363915.XU patent/CN211596435U/en active Active
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