CN218092882U - Beam-end cat ladder structure of tall and big case roof beam - Google Patents
Beam-end cat ladder structure of tall and big case roof beam Download PDFInfo
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- CN218092882U CN218092882U CN202222230082.1U CN202222230082U CN218092882U CN 218092882 U CN218092882 U CN 218092882U CN 202222230082 U CN202222230082 U CN 202222230082U CN 218092882 U CN218092882 U CN 218092882U
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Abstract
The utility model provides a beam-ends cat ladder structure of tall and big case roof beam, including cat ladder structure and tall and big case roof beam structure, the cat ladder structure includes plane vertical ladder frame, lean on the wall landing leg, plane anchor frame, anchor inserted bar and guard ring cage, the vertical setting of plane vertical ladder frame, lean on the wall landing leg to include four, plane anchor frame level sets up, the vertical setting of anchor inserted bar, the roof of tall and big case roof beam structure is opened there is cat ladder anchor blind hole, anchor inserted bar vertically inserts anchor in cat ladder anchor blind hole and keeps plane anchor frame level, the inner that leans on the wall landing leg pushes up respectively on the lateral wall of roof and bottom plate, make plane vertical ladder frame hang in the outside of tall and big case roof beam structure. The utility model discloses a cat ladder structure is made to galvanized steel pipe and band steel, utilizes the case roof beam hoist hole of case roof beam own, with the structural anchor inserted bar disect insertion of cat ladder root, design four simultaneously and lean on the wall landing leg near case roof beam structure, utilize five fulcrums to guarantee that the straight ladder frame in plane is stable in the case roof beam outside, solve the technical problem of current existence.
Description
Technical Field
The utility model relates to a construction appurtenance, especially a cat ladder structure for beam-ends.
Background
In the construction process of the high and large box girder of the high-speed railway, constructors are inevitably required to climb up and down at the beam ends. Among the prior art, generally directly adopt the straight ladder to pass from top to bottom at the beam-ends, because the straight ladder can't take root at the beam-ends, consequently constructor upper and lower in-process needs extra personnel to help to hold up steadily, and the bottom of straight ladder need be dropped on subaerial, only relies on ground to provide the fulcrum. But the job site can't guarantee that every tall and big case roof beam subaerial all has sufficient roughness enough vertical ladder to fall and puts, and the space is narrow and small on the pier simultaneously, and the potential safety hazard is high, has constructor about the lower efficiency, the lower problem of personnel's security.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a girder end ladder stand structure of a tall and big box girder, which aims to solve the technical problems that the girder end of the tall and big box girder climbing by the existing straight ladder can not adapt to complex construction conditions only by providing a fulcrum on the ground, and extra personnel are needed to help, stabilize and waste manpower; the technical problems that the space above the pier is narrow and small, the potential safety hazard is high, the up-down efficiency of constructors is low, and the safety of the constructors is low are solved.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
a girder end ladder stand structure of a tall and big box girder comprises a ladder stand structure and a tall and big box girder structure, wherein the ladder stand structure comprises a plane vertical ladder frame, a wall-leaning supporting leg, a plane anchoring frame, an anchoring inserted bar and a protective ring cage,
the plane straight ladder frame is vertically arranged, comprises two equal-height ladder columns which are arranged in parallel, and further comprises a group of horizontal ladder step beams which are arranged in parallel and at intervals, two ends of the horizontal ladder step beams are respectively and fixedly connected between the opposite sides of the ladder columns, wherein the horizontal ladder step top beam at the topmost end is fixedly connected between the opposite sides of the top ends of the ladder columns, the arrangement height of the horizontal ladder step low beam at the lowest end is accurate to ensure the climbing height of constructors,
the wall-leaning supporting legs comprise four, the outer ends of the upper two wall-leaning supporting legs are fixedly connected to the inner sides of the tops of the ladder columns, the outer ends of the lower two wall-leaning supporting legs are fixedly connected to the inner sides of the bottoms of the ladder columns, the inner sides of the wall-leaning supporting legs are positioned in the same vertical plane,
the plane anchoring frame is horizontally arranged and comprises a corner frame and a horizontal reinforcing beam, the corner frame comprises two splayed rods which are arranged in a splayed manner, the tail ends of the splayed rods are fixedly connected with the inner sides of the top ends of the ladder columns and form a triangular frame with the horizontal ladder step top beam, two ends of the horizontal reinforcing beam are respectively and fixedly connected to the splayed rods,
the anchoring inserted bar is vertically arranged, the front end of the splayed bar is fixedly connected with the outer side of the top of the anchoring inserted bar,
the protective ring cage comprises an arc protective ring and vertical enclosure guard bars, the arc protective ring is provided with a group of protective rings at intervals along the height direction of the ladder posts, two free ends of the arc protective ring are respectively and fixedly connected with the outer sides of the two ladder posts, the vertical enclosure guard bars are arranged in the vertical arrangement range of the arc protective ring at intervals, the vertical enclosure guard bars are provided with a group of protective rings at intervals on the radian of the arc protective ring and are fixedly connected with the arc protective ring,
the high and large box girder structure comprises a top plate, two side plates and a bottom plate, the three are enclosed to form a square beam, two ends of the top plate extend outwards to two sides to form cantilevers, a ladder stand anchoring blind hole is formed in the range of the square beam on the top plate and located in the square beam, the diameter of the ladder stand anchoring blind hole is larger than that of an anchoring inserting rod, the depth of the ladder stand anchoring blind hole is larger than that of the anchoring inserting rod, the anchoring inserting rod is vertically inserted into the ladder stand anchoring blind hole to be anchored and keep the plane anchoring frame horizontal, the outer end of the plane anchoring frame extends out of the outer side edge of the top plate, the inner ends of two upper side supporting legs are abutted against the side wall of the top plate, the inner ends of two lower side supporting legs are abutted against the side wall of the bottom plate, and the plane vertical ladder frame is suspended outside the high and large box girder structure.
The length of the tall box girder structure is not less than 32 meters, and the height of the tall box girder structure is not less than 24 meters.
The diameter of the anchoring plug is larger than the diameters of the plane anchoring frame and each component of the plane straight ladder frame.
The plane vertical ladder frame and the plane anchoring frame are made of galvanized steel pipes.
The guard ring cage is made of flat steel.
The horizontal reinforcing beam comprises a horizontal connecting beam and a horizontal supporting beam, two ends of the horizontal connecting beam are fixedly connected between the opposite sides of the splayed rods, two ends of the horizontal supporting beam are fixedly connected in front of the horizontal connecting beam and between the top surfaces of the splayed rods,
the guard ring cage is arranged on the middle upper portion of the planar straight ladder frame, wherein the number of the arc guard rings is not less than four, and the number of the vertical guard rail is not less than three.
Lean on the wall landing leg including top wallboard and connecting leg, connecting leg perpendicular ladder post and rather than fixed connection, the length of four connecting legs is the same, the connecting leg is made by galvanized steel pipe, top wallboard is square steel plate, vertical fixed connection placed in the middle at the inner of connecting leg.
The inner side surface of the top wall plate is respectively attached to and tightly propped against the outer side surfaces of the top plate and the bottom plate in parallel.
And the inner side surface of the top wall plate is additionally provided with a rubber non-slip mat.
Compared with the prior art the utility model has the following characteristics and beneficial effect:
the utility model discloses the structural feature of cooperation tall and big case girder construction adopts galvanized steel pipe and band steel to make the cat ladder structure, utilizes the structural case roof beam hoist hole of having of tall and big case roof beam to become cat ladder anchor blind hole, takes root the structural anchor inserted bar disect of cat ladder, designs four simultaneously and leans on the wall landing leg near tall and big case girder construction, utilizes five fulcrums to guarantee that the straight ladder frame in plane is stable in the case roof beam outside, solves the technical problem that needs extra personnel to help and hold up steady extravagant manpower.
The utility model discloses still connected plane anchor frame on the straight ladder frame in plane, designed on the plane anchor frame and made things convenient for constructor to go up the horizontal support roof beam after the roof, the connection design of horizontal connection roof beam and horizontal support roof beam has the difference in height, can be better when making things convenient for the constructor to scramble hold, provide higher reliability for the person from top to bottom.
The utility model discloses be connected with ground nothing, only lean on five fulcrums to guarantee that the straight ladder frame in plane is stable in the case roof beam outside, solve and only provide the technical problem that the fulcrum can't adapt to complicated construction conditions by ground.
The utility model discloses the design of well guard ring cage, the security is strengthened, efficiency about guaranteeing the constructor.
The invention is applied to the construction of the box girder with the length of 32 meters and the height of 24 meters or more of a high-speed railway, and people climb up and down.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings.
Fig. 1 is a schematic perspective view of the structure of the present invention.
Fig. 2 is a perspective view of the side view of fig. 1.
Figure 3 is a perspective view of the ladder stand structure of figure 1.
Fig. 4 is a perspective view of the bottom view of fig. 3.
Fig. 5 is a schematic top plan view of the structure of fig. 3.
Fig. 6 is a schematic plan side view of the structure of fig. 3.
Fig. 7 is another side view schematic of the plane of fig. 3.
Reference numerals: 1-plane straight ladder frame, 11-ladder columns, 12-horizontal ladder step beams, 121-horizontal ladder step top beams, 122-horizontal ladder step low beams, 2-wall support legs, 21-top wall plates, 22-connecting legs, 3-plane anchoring frames, 31-corner frames, 32-horizontal reinforcing beams, 321-horizontal connecting beams, 322-horizontal supporting beams, 4-anchoring inserted rods, 5-protective ring cages, 51-arc protective rings, 52-vertical enclosure railings, 6-tall and big box girder structures, 61-top plates, 62-side plates, 63-bottom plates and 64-ladder step anchoring blind holes.
Detailed Description
Examples referring to fig. 1-7, a girder-end ladder structure of a tall box girder includes a ladder structure and a tall box girder structure, the ladder structure is provided at one side of the tall box girder structure 6, and the tall box girder structure 6 has a length of 32 m and a height of 24 m. The ladder stand structure comprises a plane ladder stand 1, a wall-leaning supporting leg 2, a plane anchoring frame 3, an anchoring inserted bar 4 and a protective ring cage 5.
Referring to fig. 4-7, the planar straight ladder frame 1 is vertically arranged, and includes two equal-height ladder posts 11 arranged in parallel, and further includes a set of parallel horizontal ladder step beams 12 arranged at intervals, two ends of the horizontal ladder step beams 12 are respectively and fixedly connected between opposite sides of the ladder posts 11, wherein the topmost horizontal ladder step top beam 121 is fixedly connected between opposite sides of the top of the ladder posts 11, and the lowest horizontal ladder step low beam 122 is arranged at a height that is accurate for ensuring the climbing height of a constructor.
In this embodiment, the horizontal ladder beams 12 are provided with 7 pieces in total.
As shown in fig. 4-7, the number of the wall-leaning supporting legs 2 is four, the outer ends of the two upper wall-leaning supporting legs 2 are fixedly connected to the inner side of the top of the ladder post 11, the outer ends of the two lower wall-leaning supporting legs 2 are fixedly connected to the inner side of the bottom of the ladder post 11, and the inner sides of the wall-leaning supporting legs 2 are located in the same vertical plane. Lean on wall landing leg 2 including top wallboard 21 and connecting leg 22, connecting leg 22 is perpendicular ladder post 11 and rather than fixed connection, and four connecting leg 22's length is the same, connecting leg 22 is made by galvanized steel pipe, top wallboard 21 is square steel plate, vertical fixed connection in the middle of at the inner of connecting leg 22. The inner side surface of the top wall plate 21 is attached to and pressed against the outer side surfaces of the top plate 61 and the bottom plate 63 in parallel. And a rubber non-slip mat is additionally arranged on the inner side surface of the top wall plate 21.
Referring to fig. 4 to 7, the planar anchoring frame 3 is horizontally arranged, and includes a corner frame 31 and a horizontal reinforcing beam 32, the corner frame 31 includes two splayed rods arranged in a splayed shape, the tail ends of the splayed rods are fixedly connected with the inner sides of the top ends of the ladder posts 11, and form a triangular frame with the horizontal ladder step top beam 121, and two ends of the horizontal reinforcing beam 32 are respectively fixedly connected to the splayed rods. The horizontal reinforcing beam 32 comprises a horizontal connecting beam 321 and a horizontal supporting beam 322, two ends of the horizontal connecting beam 321 are fixedly connected between opposite sides of the splayed rod, and two ends of the horizontal supporting beam 322 are fixedly connected in front of the horizontal connecting beam 321 and between top surfaces of the splayed rods.
In this embodiment, the planar straight ladder frame 1 and the planar anchoring frame 3 are made of galvanized steel pipes and have a diameter of 30mm.
The anchor inserted bar 4 is vertically arranged, and the front end of the splayed bar is fixedly connected with the outer side of the top of the anchor inserted bar 4. The diameter of the anchoring inserted bar 4 is larger than the diameter of each component of the plane anchoring frame 3 and the plane straight ladder frame 1. In this embodiment, the anchoring plunger 4 has a diameter of 60mm.
Referring to fig. 4-7, the guard ring cage 5 includes an arc guard ring 51 and vertical guard rails 52, the arc guard ring 51 is provided with a group at intervals along the height direction of the ladder posts 11, two free ends of the arc guard ring 51 are respectively fixedly connected with the outer sides of the two ladder posts 11, the vertical guard rails 52 are arranged at the vertical arrangement range of the arc guard ring 51, and the vertical guard rails 52 are arranged at intervals on the radian of the arc guard ring 51 and are fixedly connected with the same. The guard ring cage 5 is arranged on the middle upper portion of the planar straight ladder frame 1, wherein the number of the arc guard rings 51 is not less than four, and the number of the vertical guard rail 52 is not less than three.
In this embodiment, the guard ring cage 5 is made of flat steel, and has a dimension of 25mm in width and 2mm in thickness. During actual construction, the vertical guard rail 52 needs to be welded on the inner side of the arc-shaped guard ring 51, and in this embodiment, 4 arc-shaped guard rings 51 correspond to the positions of the 2 nd to 5 th horizontal ladder step beams respectively. The arc guard ring 51 comprises a straight line section and an arc section, wherein the width of the straight line section needs to be adapted to the fact that a constructor can freely penetrate out from top to bottom.
Referring to fig. 1-2, the tall box girder structure 6 includes a top plate 61, two side plates 62 and a bottom plate 63, which are enclosed to form a square girder, two ends of the top plate 61 extend outwards to form cantilevers, a ladder anchoring blind hole 64 is formed in the top plate 61 and located within the square girder, the diameter of the ladder anchoring blind hole 64 is larger than that of the anchoring insertion rod 4, the depth of the ladder anchoring blind hole 64 is larger than that of the anchoring insertion rod 4, the anchoring insertion rod 4 is vertically inserted into the ladder anchoring blind hole 64 to be anchored and keep the plane anchoring frame 3 horizontal, the outer end of the plane anchoring frame 3 extends out of the top plate 61, the inner ends of the two wall-leaning supporting legs 2 at the upper side are propped against the side wall of the top plate 61, and the inner ends of the two wall-leaning supporting legs 2 at the lower side are propped against the side wall of the bottom plate 63, so that the plane anchoring frame 1 hangs down on the outer side of the tall box girder structure 6.
The utility model discloses a work progress as follows:
step one, designing the overall size of the ladder stand structure according to the distance between the top plate 61 and the bottom plate 63 and manufacturing according to the size of the tall and big box girder structure.
And step two, cleaning the box girder hanger holes in advance to form ladder stand anchoring blind holes, then lowering the ladder stand structure by hoisting, inserting anchoring insertion rods into the ladder stand anchoring blind holes, and then enabling the wall-leaning support legs to abut against the top plate 61 and the bottom plate 63.
And step three, the constructor adjusts the ladder stand structure to enable the four wall-leaning supporting legs to abut against each other, then the constructor can directly climb upwards to the plane anchoring frame from the plane vertical ladder frame 1 through the protection of the protection ring cage, and the plane anchoring frame can be lifted to the top surface of the top plate.
And step four, the constructor can return to the construction ground according to the original way.
And fifthly, the hoisting ladder structure is transported to the construction position of the next tall box girder.
Claims (10)
1. The utility model provides a beam-ends cat ladder structure of tall and big case roof beam which characterized in that: comprises a ladder stand structure and a tall box girder structure, the ladder stand structure comprises a plane ladder stand (1), a wall-leaning supporting leg (2), a plane anchoring frame (3), an anchoring inserted bar (4) and a protective ring cage (5),
the plane straight ladder frame (1) is vertically arranged, comprises two equal-height ladder posts (11) which are arranged in parallel and also comprises a group of horizontal ladder stepping beams (12) which are arranged in parallel and at intervals, two ends of each horizontal ladder stepping beam (12) are respectively and fixedly connected between the opposite sides of the ladder posts (11), wherein the horizontal ladder stepping top beam (121) at the topmost end is fixedly connected between the opposite sides of the top ends of the ladder posts (11), the arrangement height of the horizontal ladder stepping low beam (122) at the lowest end is determined by ensuring the climbing height of constructors,
the wall-leaning supporting legs (2) comprise four, the outer ends of the two upper side wall-leaning supporting legs (2) are fixedly connected to the inner side of the top of the ladder column (11), the outer ends of the two lower side wall-leaning supporting legs (2) are fixedly connected to the inner side of the bottom of the ladder column (11), the inner sides of the wall-leaning supporting legs (2) are positioned in the same vertical plane,
the plane anchoring frame (3) is horizontally arranged and comprises a corner frame (31) and a horizontal reinforcing beam (32), the corner frame (31) comprises two splayed rods which are arranged in a splayed shape, the tail ends of the splayed rods are fixedly connected with the inner side of the top end of the ladder column (11) and form a triangular frame with the horizontal ladder step top beam (121), two ends of the horizontal reinforcing beam (32) are respectively and fixedly connected to the splayed rods,
the anchoring inserted bar (4) is vertically arranged, the front end of the splayed bar is fixedly connected with the outer side of the top of the anchoring inserted bar (4),
the guard ring cage (5) comprises arc guard rings (51) and vertical guard rails (52), wherein the arc guard rings (51) are arranged in a group at intervals along the height direction of the ladder posts (11), two free ends of the arc guard rings (51) are respectively fixedly connected with the outer sides of the two ladder posts (11), the vertical guard rails (52) are arranged in the vertical arrangement range of the arc guard rings (51) in a full-length mode, the vertical guard rails (52) are arranged in a group at intervals on the radian of the arc guard rings (51) and are fixedly connected with the arc guard rings,
the tall and big box girder structure (6) comprises a top plate (61), two side plates (62) and a bottom plate (63), the top plate (61), the two side plates (62) and the bottom plate (63) are enclosed to form a square girder, two ends of the top plate (61) extend outwards to form cantilevers, ladder stand anchoring blind holes (64) are formed in the square girder range on the top plate (61), the diameter of each ladder stand anchoring blind hole (64) is larger than that of each anchoring inserted bar (4), the depth of each ladder stand anchoring blind hole (64) is larger than that of each anchoring inserted bar (4), each anchoring inserted bar (4) is vertically inserted into each anchoring blind hole (64) to be anchored and keep the plane anchoring frame (3) horizontal, the outer end of each plane anchoring frame (3) extends out of the outer edge of the top plate (61), the inner ends of two upper side wall supporting legs (2) abut against the side wall of the top plate (61), the inner ends of two lower side wall supporting legs (2) abut against the side wall of the bottom plate (63), and the plane vertical ladder frame (1) is suspended outside the tall and big box girder structure (6).
2. The girder end ladder construction of a tall box girder according to claim 1, wherein: the length of the tall and big box girder structure (6) is not less than 32 meters, and the height of the tall and big box girder structure is not less than 24 meters.
3. The girder-end ladder structure of a tall box girder according to claim 1, wherein: the diameter of the anchoring inserted bar (4) is larger than the diameters of the plane anchoring frame (3) and each component of the plane straight ladder frame (1).
4. The girder end ladder construction of a tall box girder according to claim 1, wherein: the plane straight ladder frame (1) and the plane anchoring frame (3) are made of galvanized steel pipes.
5. The girder end ladder construction of a tall box girder according to claim 1, wherein: the guard ring cage (5) is made of flat steel.
6. The girder end ladder construction of a tall box girder according to claim 1, wherein: the horizontal reinforcing beam (32) comprises a horizontal connecting beam (321) and a horizontal supporting beam (322), two ends of the horizontal connecting beam (321) are fixedly connected between opposite sides of the splayed rods, and two ends of the horizontal supporting beam (322) are fixedly connected in front of the horizontal connecting beam (321) and between top surfaces of the splayed rods.
7. The girder end ladder construction of a tall box girder according to claim 1, wherein: the guard ring cage (5) is arranged on the middle upper portion of the planar straight ladder frame (1), wherein four guard rings (51) are not less than four guard rings, and three guard rails (52) are not less than three guard rings.
8. The girder end ladder construction of a tall box girder according to claim 1, wherein: lean on wall landing leg (2) including top wallboard (21) and connecting leg (22), connecting leg (22) perpendicular ladder post (11) and rather than fixed connection, the length of four connecting legs (22) is the same, connecting leg (22) are made by galvanized steel pipe, top wallboard (21) are square steel plate, vertical fixed connection between two parties in the inner of connecting leg (22).
9. The girder end ladder construction of a tall box girder according to claim 8, wherein: the inner side surface of the top wall plate (21) is respectively attached to and tightly pressed against the outer side surfaces of the top plate (61) and the bottom plate (63) in parallel.
10. The girder end ladder construction of a tall box girder according to claim 9, wherein: and a rubber non-slip mat is additionally arranged on the inner side surface of the top wall plate (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222230082.1U CN218092882U (en) | 2022-08-24 | 2022-08-24 | Beam-end cat ladder structure of tall and big case roof beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222230082.1U CN218092882U (en) | 2022-08-24 | 2022-08-24 | Beam-end cat ladder structure of tall and big case roof beam |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218092882U true CN218092882U (en) | 2022-12-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222230082.1U Active CN218092882U (en) | 2022-08-24 | 2022-08-24 | Beam-end cat ladder structure of tall and big case roof beam |
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| Country | Link |
|---|---|
| CN (1) | CN218092882U (en) |
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2022
- 2022-08-24 CN CN202222230082.1U patent/CN218092882U/en active Active
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