CN215714678U - Combined bridge deck cast-in-situ door type support - Google Patents
Combined bridge deck cast-in-situ door type support Download PDFInfo
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- CN215714678U CN215714678U CN202122061490.4U CN202122061490U CN215714678U CN 215714678 U CN215714678 U CN 215714678U CN 202122061490 U CN202122061490 U CN 202122061490U CN 215714678 U CN215714678 U CN 215714678U
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Abstract
The utility model discloses a combined bridge deck cast-in-place door type support, which comprises a unit frame body formed by a plurality of door type supports; the adjustable jacking device also comprises an adjustable jacking and an adjustable bottom support; a plug with the outer diameter same as the inner diameter of the hollow supporting rod is reserved at the top of the hollow supporting rod and is inserted into the bottom of the upper door-shaped support through the plug; the jacking support and the bottom support are of the same structure and are arranged in opposite directions, the jacking support and the bottom support both comprise vertical screw rods, an internal thread rotary drum is sleeved outside the vertical screw rods, a group of rotary lugs are symmetrically arranged outside the internal thread rotary drum, transverse through holes are formed in the rotary lugs, and L-shaped rotary handles and a supporting plate are respectively and rotatably arranged in the transverse through holes; according to the utility model, the steel purlin is used as a supporting material, and compared with the traditional H-shaped steel and square timber, the weight of construction materials is reduced on the premise of meeting the construction strength, so that the risk of high-altitude hoisting is reduced; adopt the pre-connecting piece of multiple height, in addition the fine setting height of top support and collet, can the multiple height of perfect adaptation.
Description
Technical Field
The utility model relates to the field of bridge engineering bridge deck slab construction devices, in particular to a combined bridge deck slab cast-in-place door type support.
Background
The bridge deck, also known as a roadway slab, is a load-bearing structure for directly bearing the wheel pressure of a vehicle. It is generally structurally integral with the ribs and diaphragms of the main beam, so as to both transmit the vehicle to the main beam and form part of its section, and to ensure its overall function. The deck slab is generally made of reinforced concrete, can exert horizontal prestressing force, and the support that the deck slab supported it when pouring is indispensable.
The traditional bridge deck cast-in-place construction adopts a full-framing method or a Bailey framing method, the full-framing method is wide in adaptability, but the erection process of the bracket is too complicated and takes longer time, the requirement on the foundation is higher, meanwhile, steel pipes are required to be cut again according to the actual height of the bridge deck during the construction of each section of bridge deck, and the material loss is higher; every time the full support is erected, the full support at the previous station needs to be disassembled and then assembled, and the process is complicated; in addition, the existing full framing method needs a large number of connecting pieces and fasteners, and the maintenance steps are complicated.
Therefore, a cast-in-place bridge deck support which can be quickly disassembled and assembled and can be adjusted in height according to actual needs is needed.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to provide a combined bridge deck slab cast-in-place door type support, and the problems that the building process of a full-framing support method or a Bailey frame method adopted by the traditional bridge deck slab cast-in-place construction is too complicated, and meanwhile, the loss is easy, the maintenance is difficult, and the disassembly and the assembly are slow are solved.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: a combined bridge deck cast-in-place door-shaped support comprises a unit frame body formed by connecting a plurality of door-shaped supports vertically end to end; the door-shaped support comprises a frame consisting of four vertically arranged hollow support rods and transverse connecting rods, and scissor supports are arranged in the vertical surfaces of the frame;
a plug with the outer diameter same as the inner diameter of the hollow supporting rod is reserved at the top of the hollow supporting rod, and the lower door-shaped support is inserted into the bottom of the upper door-shaped support through the plug;
the jacking support and the bottom support are of the same structure and are arranged in opposite directions and respectively comprise a vertical screw rod, an internal thread rotary drum is sleeved outside the vertical screw rod, a group of rotary lugs are symmetrically arranged outside the internal thread rotary drum, transverse through holes are formed in the rotary lugs, and L-shaped rotary handles are respectively and rotatably arranged in the transverse through holes; the supporting plate is fixed at one end of the vertical screw rod and is provided with a plurality of first connecting through holes;
the steel purlin is arranged on the jacking support along the length direction of the door-shaped support, comprises a group of U-shaped grooves which are horizontally arranged and back to back, and is connected through stiffening ribs on the outer sides of the U-shaped grooves, and a plurality of second connecting through holes are further formed in the side walls of the U-shaped grooves; the steel enclosing purlin is fixed in the U-shaped mounting groove through a second connecting through hole and a bolt.
Particularly, the door-shaped support comprises a plurality of groups of door-shaped supports which have the same structure and are from low to high in height.
Particularly, a plurality of adjusting through holes are formed in the side walls of the hollow supporting rod and the plug, and the length of the plug inserted into the hollow supporting rod is adjusted through the adjusting bolts and the adjusting through holes.
Particularly, still include to set up in the concrete cushion of collet below, be equipped with the location screw that is used for fixed collet on the concrete cushion.
Compared with the prior art, the utility model has the following advantages and beneficial effects: the steel purlin is used as a supporting material, and compared with the traditional H-shaped steel and square timber, the weight of construction materials is reduced on the premise of meeting the construction strength, so that the risk of high-altitude hoisting is reduced; the adoption of pre-connecting pieces with various heights and the fine adjustment height of the jacking support and the bottom support can perfectly adapt to various heights; the device is connected by adopting a plug-in mode, various connecting fasteners and overlapping pieces are avoided, the maintenance is simple, the material loss is less, the construction cost can be effectively reduced, the construction period is shortened, and the engineering progress is accelerated.
Drawings
FIG. 1 is a schematic view of the structure of the present invention.
Fig. 2 is an enlarged schematic view of a portion a in fig. 1.
Fig. 3 is an enlarged schematic view of B in fig. 1.
Fig. 4 is a schematic structural diagram of a door-shaped bracket.
Fig. 5 is a schematic view of a jacking structure.
Fig. 6 is a schematic structural diagram of a steel purlin.
The explanation of each reference number in the figure is: a door-shaped bracket-1; a hollow strut-11; a transverse connecting rod-12; a scissor support-13; a plug-14; an adjusting through hole-15; a unit frame-2; an adjustable jacking-3; an adjustable bottom support-4; a vertical screw-5; an internal thread rotary drum-51; a rotary lug-52; a transverse through-hole-53; an L-shaped rotating handle-54; a pallet-55; a first connecting through hole-56; steel purlin-6; a U-shaped groove-61; a stiffener-62; a second connecting through hole-63; a U-shaped mounting slot-64; concrete pad-7.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, so as to further understand the concept, the technical problems solved, the technical features constituting the technical solutions, and the technical effects brought by the technical solutions.
The utility model relates to a combined bridge deck cast-in-place door type support, which comprises a plurality of door type supports 1 which are vertically connected end to form a unit frame body 2; the door-shaped support 1 comprises a frame consisting of four vertically arranged hollow support rods 11 and transverse connecting rods 12, and scissor supports 13 are arranged in the vertical surfaces of the frame;
a plug 14 with the same outer diameter as the inner diameter of the hollow supporting rod 11 is reserved at the top of the hollow supporting rod 11, and the lower door-shaped support 1 is inserted into the bottom of the upper door-shaped support 1 through the plug 14;
the adjustable jacking 3 and the adjustable bottom support 4 are identical in structure and are arranged in opposite directions and respectively comprise a vertical screw 5, an internal thread rotating cylinder 51 is sleeved outside the vertical screw 5, a group of rotating lugs 52 are symmetrically arranged outside the internal thread rotating cylinder 51, a transverse through hole 53 is formed in each rotating lug 52, and an L-shaped rotating handle 54 is rotatably arranged in each transverse through hole 53; the screw rod type screw rod device further comprises a supporting plate 55, wherein the supporting plate 55 is fixed at one end of the vertical screw rod 5, and a plurality of first connecting through holes 56 are formed in the supporting plate 55;
the steel purlin 6 is arranged on the adjustable jacking 3 along the length direction of the door-shaped support 1, the steel purlin 6 comprises a group of U-shaped grooves 61 which are horizontally arranged and back to back, the U-shaped grooves are connected through stiffening ribs 62 on the outer sides of the U-shaped grooves 61, and a plurality of second connecting through holes 63 are further formed in the side walls of the U-shaped grooves 61; the steel purlin 6 is fixed in the U-shaped mounting groove 64 through a second connecting through hole 63 and a bolt.
As a preferred embodiment, the door-shaped support 1 comprises a plurality of groups of different sizes with the same structure and the height from low to high.
As a preferred embodiment, a plurality of adjusting through holes 15 are arranged on the bottom end of the hollow strut 11 and the side wall of the plug 14, and the length of the plug 14 inserted into the hollow strut 11 is adjusted through adjusting bolts and the adjusting through holes 15.
As a preferred embodiment, the adjustable mounting structure further comprises a concrete cushion block 7 arranged below the adjustable mounting 4, and a positioning screw hole for fixing the adjustable mounting 4 is arranged on the concrete cushion block 7.
In the utility model, the door-shaped support 1 is divided into three heights which are respectively 0.9m, 1.2m and 1.8m, the heights can be flexibly adjusted by different combination modes, and two gravity type lock catches are arranged above a cross bar at the top of the door-shaped support 1 and are used for being connected with the scissor supports 13; the side of door type support 1 still is equipped with the integral type ladder that has anti-skidding crosspiece, as the construction passageway, is provided with the safety hook point between ladder and the bridging 13 for protective articles such as hanging safety rope, safety belt. The cross braces 13 also have multiple sizes to match different heights of the gantry 1. The adjustable jacking 3 and the adjustable bottom support 4 are made of high-strength alloy materials, the height adjustment can be accurate to a millimeter level, a specially-made thread shape and a fixed handle are arranged, the disassembly is convenient, the adjustable jacking 3 and the adjustable bottom support 4 form the adjustment height range of 30cm-70cm in total, and the height adjustment can be facilitated.
Adjustable jacking 3 and adjustable collet 4's layer board 55 all adopts 10mm thick galvanized steel sheet to make, reserves the first connecting hole of a plurality of 56 around the bottom for fix adjustable jacking 4 on concrete cushion 7 and enclose the second connecting hole 63 cooperation of purlin 6 with adjustable jacking 3 and steel, connect adjustable jacking 3 and steel and enclose purlin 6.
Purlin 6 is enclosed to the steel and is connected for two U type grooves 61 dorsad, and the side direction uses stiffening rib 62 to connect and forms, reserves the hole on the U type groove 61 lateral wall as second connect the via hole 63 for follow-up and upper portion bearing structure are connected, and under the condition that does not influence bearing capacity, can alleviate the whole weight that the purlin was enclosed to the steel simultaneously, it is more light.
When the construction is started, firstly, a construction site is prepared, the foundation bearing capacity requirement is larger than 40MPa, the concrete cushion blocks 7 are placed according to the related intervals, then the adjustable bottom supports 4 are placed downwards according to the frame intervals on the supporting plates 55, the height of the adjustable bottom supports 4 is adjusted according to the height combination design, the unit frame bodies 2 are installed again, the height of the unit frame bodies 2 is determined according to the actual height, the combined door-shaped supports 1 with different heights are used for preliminary fine adjustment through the plugs 14, the cross braces 13 serving as reinforcing pieces are arranged in the vertical surfaces of the unit frame bodies 2, and the cross braces 13 with different types are selected according to the sizes of the different door-shaped supports 1 to be installed synchronously. Adjustable top of installation holds in palm 3, the layer board 55 of adjustable top support 3 upwards sets up to set up U-shaped mounting groove 64 on the layer board 55 of adjustable top support 3, through-hole and first connect the via hole 56 on the U-shaped mounting groove 64 connect adjustable top support 3 and U-shaped mounting groove, and enclose purlin 6 with the steel and install in U-shaped mounting groove 64 through the through-hole on second connect the via hole 63 and the U-shaped mounting groove 64, finely tune the height that adjustable top held in the palm 3 through the secondary at last, accomplish the installation of device.
The terms "connected" and "fixed" in the description of the present invention may be fixed, formed, welded, or mechanically connected, and the specific meaning of the above terms in the present invention is understood.
In the description of the present invention, the terms "center", "upper", "lower", "horizontal", "inner", "outer", etc. are used in the orientation or positional relationship indicated only for convenience in describing the present invention and for simplicity in description, but do not indicate or imply that the device or element referred to must have a particular orientation and therefore should not be construed as limiting the present invention.
Finally, it should be noted that: the above embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; while the utility model has been described in detail and with reference to the foregoing embodiments, those skilled in the art will appreciate that; the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and the modifications or the substitutions do not make the essence of the corresponding technical solutions depart from the scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. A combined bridge deck cast-in-place door-shaped support comprises a plurality of door-shaped supports (1) which are vertically connected end to form a unit frame body (2); the device is characterized in that the door-shaped support (1) comprises a frame consisting of four vertically arranged hollow support rods (11) and transverse connecting rods (12), and scissor supports (13) are arranged in the vertical surfaces of the frame;
a plug (14) with the outer diameter same as the inner diameter of the hollow supporting rod (11) is reserved at the top of the hollow supporting rod (11), and the lower door-shaped support (1) is inserted into the bottom of the upper door-shaped support (1) through the plug (14);
the adjustable jacking support (3) and the adjustable bottom support (4) are identical in structure and are arranged in opposite directions and respectively comprise a vertical screw (5), an internal thread rotating cylinder (51) is sleeved outside the vertical screw (5), a group of rotating lugs (52) are symmetrically arranged outside the internal thread rotating cylinder (51), a transverse through hole (53) is formed in each rotating lug (52), and an L-shaped rotating handle (54) is respectively and rotatably arranged in each transverse through hole (53); the supporting plate (55) is fixed at one end of the vertical screw (5), and a plurality of first connecting through holes (56) are formed in the supporting plate (55);
the steel purlin (6) is arranged on the adjustable jacking support (3) along the length direction of the door-shaped support (1), the steel purlin (6) comprises a group of U-shaped grooves (61) which are horizontally arranged and back to back, the U-shaped grooves are connected through stiffening ribs (62) on the outer sides of the U-shaped grooves (61), and a plurality of second connecting through holes (63) are further formed in the side walls of the U-shaped grooves (61); the steel purlin (6) is fixed in the U-shaped mounting groove (64) through a second connecting through hole (63) and a bolt.
2. A modular decking cast-in-place portal frame as claimed in claim 1, wherein the portal frame (1) includes a plurality of sets of different sizes having the same structure and varying heights from low to high.
3. The combined type bridge deck cast-in-place door type support frame as claimed in claim 1, wherein a plurality of adjusting through holes (15) are formed in the side walls of the hollow support rod (11) and the plug (14), and the length of the plug (14) inserted into the hollow support rod (11) is adjusted through the adjusting bolts and the adjusting through holes (15).
4. A modular decking cast-in-place portal frame as claimed in claim 1, further comprising concrete pads (7) disposed below the adjustable bottom mounts (4), the concrete pads (7) being provided with locating screw holes for fixing the adjustable bottom mounts (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122061490.4U CN215714678U (en) | 2021-08-30 | 2021-08-30 | Combined bridge deck cast-in-situ door type support |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122061490.4U CN215714678U (en) | 2021-08-30 | 2021-08-30 | Combined bridge deck cast-in-situ door type support |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215714678U true CN215714678U (en) | 2022-02-01 |
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ID=80009127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122061490.4U Active CN215714678U (en) | 2021-08-30 | 2021-08-30 | Combined bridge deck cast-in-situ door type support |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215714678U (en) |
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2021
- 2021-08-30 CN CN202122061490.4U patent/CN215714678U/en active Active
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