CN211473514U - Wall-leaning bidirectional steel ladder for foundation pit or vertical shaft construction - Google Patents
Wall-leaning bidirectional steel ladder for foundation pit or vertical shaft construction Download PDFInfo
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- CN211473514U CN211473514U CN201922099021.4U CN201922099021U CN211473514U CN 211473514 U CN211473514 U CN 211473514U CN 201922099021 U CN201922099021 U CN 201922099021U CN 211473514 U CN211473514 U CN 211473514U
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 52
- 239000010959 steel Substances 0.000 title claims abstract description 52
- 238000010276 construction Methods 0.000 title claims abstract description 22
- 230000002457 bidirectional effect Effects 0.000 title description 4
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000009412 basement excavation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012938 design process Methods 0.000 description 1
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Abstract
The utility model relates to a stair field of its characterized in that bearing structure specifically is a lean on two-way steel ladder of wall for foundation ditch or shaft construction. The utility model provides a lean on two-way steel ladder of wall for foundation ditch or shaft construction, includes wall body (1) and platform (2) between the ladder, and platform (2) are fixed on wall body (1) between the ladder, characterized by: the stair (3) is also included, and each support frame (11) is connected with one inter-stair platform (2); a stair (3) is erected between the platforms (2) of two adjacent layers of the ladder rooms. The utility model discloses conveniently install and remove, be convenient for current, safe and reliable.
Description
Technical Field
The utility model relates to a stair field of its characterized in that bearing structure specifically is a lean on two-way steel ladder of wall for foundation ditch or shaft construction.
Background
The construction sequence from top to bottom is adopted during excavation of the foundation pit or the vertical shaft, the installation sequence from bottom to top is adopted in the traditional stair installation, the up-and-down passing stairs in the construction stage of the foundation pit or the vertical shaft belong to temporary passages and are only used in the construction stage, and therefore the design and installation matters of the up-and-down passing stairs in the construction stage are not considered in the design process. The steel ladder type of the steel ladder atlas (15J 401) released in China at present cannot be completely applied to the construction stage of a foundation pit or a vertical shaft.
SUMMERY OF THE UTILITY MODEL
In order to overcome prior art's defect, provide one kind and conveniently install and remove, be convenient for current, safe and reliable stair for underground facilities construction, the utility model discloses a lean on two-way steel ladder of wall for foundation ditch or shaft construction.
The utility model discloses a following technical scheme reaches the invention purpose:
the utility model provides a lean on two-way steel ladder of wall for foundation ditch or shaft construction, includes wall body and platform between the ladder, and the platform is fixed on the wall body between the ladder, characterized by: also comprises a stair, a plurality of stairs,
the number of the supporting frames is equal to that of the platforms between ladders, each supporting frame is connected with one platform between ladders,
the supporting frames are embedded into the wall body, the inner ends of the supporting frames are of a frame structure and are embedded into the wall body, the outer ends of the supporting frames are supporting beams fixed at two ends of the frame structure and extend out of the wall body, a supporting column is fixed below each supporting beam respectively, the supporting columns are attached and fixed on the wall body, and the top ends of the supporting columns are connected with the inner ends of the supporting beams;
the platform between ladders comprises platform beams, platform connecting rods, platform inclined supporting rods, a platform floor, platform guardrails and platform protecting nets, wherein the outer ends of the supporting beams are respectively connected with one platform beam through a connecting plate and a fastening bolt, one platform beam is taken as the outer side, the other platform beam is taken as the inner side, two ends of each platform connecting rod are respectively connected with one platform beam, the two supporting beams are also connected by one platform connecting rod, each platform connecting rod is sequentially and evenly distributed along the axial direction of the platform beam, the rear part of each platform beam and the bottom end of each supporting column are respectively connected by one platform inclined supporting rod, the platform floor is laid on a plane enclosed by the two platform beams, the platform guardrails are vertically fixed on a connecting line at the outer ends of the two platform beams, the platform beam at the outer side of the platform between the uppermost ladder and the platform beam at the inner side of the platform between the lowermost ladder, and the;
set up stair between the platform of two adjacent layers of terraced rooms, stair include footboard, top connecting piece, end connecting piece, stair guardrail and stair protecting wire net, the inboard platform roof beam of upper terraced room platform is connected through the top connecting piece in the top of footboard, the platform roof beam in the lower terraced room platform outside is connected through end connecting piece in the bottom of footboard, stair guardrail fixes in the footboard both sides perpendicularly, the stair protecting wire net is covered in the subsides on the stair guardrail.
A lean on two-way steel ladder of wall for foundation ditch or shaft construction, characterized by:
i-shaped steel is selected as the supporting beam, the supporting column, the platform beam and the platform diagonal brace;
the connecting plates are made of steel plates, when the connecting plates are connected with the supporting beam and the platform beam, the two connecting plates are respectively attached to two sides of webs of the supporting beam and the platform beam, and then fastening bolts penetrate through the two connecting plates and the webs of the supporting beam and the webs of the two connecting plates and the webs of the platform beam to be fastened and connected;
the platform connecting rods connected with the supporting beams and the platform connecting rods connected with the outer ends of the two platform beams are all made of I-shaped steel, and the rest platform connecting rods are made of channel steel;
selecting a steel plate as a platform floor;
selecting a steel pipe as a platform guardrail;
the platform protection net is a dense mesh net;
the top connecting piece and the bottom connecting piece are both made of angle steel,
when the top of the pedal is connected with a platform beam on the inner side of the platform of the upper ladder room, the bottom surface of the horizontal plate of the top connecting piece is attached and fixed on the platform beam, and the bottom surface of the top of the pedal is attached and fixed on the top surface of the horizontal plate of the top connecting piece;
when the bottom of the pedal is connected with the platform beam outside the platform between the upper ladders, the bottom surface of the horizontal plate of the bottom connecting piece is attached and fixed on the platform beam, and the outer side surface of the vertical plate of the bottom connecting piece is attached and fixed on the inner side surface of the bottom of the pedal.
The manufacturing method of the wall-leaning bidirectional steel ladder for foundation pit or vertical shaft construction is characterized by comprising the following steps of: the method is implemented in sequence according to the following steps:
a. pre-embedding: the method comprises the following steps that a support frame is embedded in a wall body, the inner end of the support frame is a frame structure and is embedded in the wall body, the outer end of the support frame is a support beam fixed at two ends of the frame structure and extends out of the wall body, a support column is fixed below each support beam respectively, the support columns are attached and fixed on the wall body, and the top ends of the support columns are connected with the inner ends of the support beams;
b. fixing a platform between ladders: the platform between ladders is fixed on a wall body through pre-buried support frames, each support frame is connected with one platform between ladders, each platform between ladders comprises a platform beam, a platform connecting rod, a platform diagonal brace, a platform floor, platform guardrails and a platform protecting net, the outer ends of the support beams are respectively connected with one platform beam through a connecting plate and a fastening bolt, one platform beam is taken as the outer side, the other platform beam is taken as the inner side, two ends of each platform connecting rod are respectively connected with one platform beam, the two support beams are also connected by one platform connecting rod, each platform connecting rod is sequentially and evenly distributed along the axial direction of the platform beams, the rear parts of the platform beams and the bottom ends of the support columns are respectively connected by one platform diagonal brace, the platform floor is laid on a plane enclosed by the two platform beams, the platform guardrails are vertically fixed on the connecting line of the outer ends of the two platform beams, the platform beam on the outer side of the platform between the uppermost, a platform protecting net is attached to the platform guardrail;
c. building a stair: set up stair between adjacent two layers of staircase platform, stair include footboard, top connecting piece, end connecting piece, stair guardrail and stair protecting wire net, pass through the inboard platform roof beam of top connecting piece connection upper terraced room platform with the top of footboard, pass through the platform roof beam of end connecting piece connection lower terraced room platform outside with the bottom of footboard, make stair guardrail fix perpendicularly in the footboard both sides, paste on stair guardrail and cover the stair protecting wire net.
The manufacturing method of the wall-leaning bidirectional steel ladder for foundation pit or vertical shaft construction is characterized by comprising the following steps of:
in the step a, I-shaped steel is selected for the supporting beam and the supporting column;
b, selecting I-shaped steel for both the platform beam and the platform diagonal brace;
the connecting plates are made of steel plates, when the connecting plates are connected with the supporting beam and the platform beam, the two connecting plates are respectively attached to two sides of webs of the supporting beam and the platform beam, and then fastening bolts penetrate through the two connecting plates and the webs of the supporting beam and the webs of the two connecting plates and the webs of the platform beam to be fastened and connected;
the platform connecting rods connected with the supporting beams and the platform connecting rods connected with the outer ends of the two platform beams are all made of I-shaped steel, and the rest platform connecting rods are made of channel steel;
selecting a steel plate as a platform floor;
selecting a steel pipe as a platform guardrail;
the platform protection net is a dense mesh net;
in the step c, the top connecting piece and the bottom connecting piece both adopt angle steel,
when the top of the pedal is connected with a platform beam on the inner side of the platform of the upper ladder room, the bottom surface of the horizontal plate of the top connecting piece is attached and fixed on the platform beam, and the bottom surface of the top of the pedal is attached and fixed on the top surface of the horizontal plate of the top connecting piece;
when the bottom of the pedal is connected with the platform beam outside the platform between the upper ladders, the bottom surface of the horizontal plate of the bottom connecting piece is attached and fixed on the platform beam, and the outer side surface of the vertical plate of the bottom connecting piece is attached and fixed on the inner side surface of the bottom of the pedal.
The utility model discloses an optimal design's stair part is under the prerequisite that does not influence the security performance, carries few stair processing, installation and demolishs the degree of difficulty, reduces the high risk operation in the stair installation, solves foundation ditch or shaft construction stage current problem from top to bottom. The method has the advantages of low cost, accordance with the safe and civilized construction requirements, and convenience for construction operators and managers to go up and down the foundation pit or the vertical shaft.
Drawings
Fig. 1 is a top view of the platform between the middle ladders of the present invention;
FIG. 2 is a view taken along line A-A of FIG. 1;
FIG. 3 is a view from the B-B direction in FIG. 1;
fig. 4 is a front view of the middle stair of the present invention;
FIG. 5 is a schematic structural view of a platform beam connected to the inner side of the platform between the upper ladders through a top connecting member at the top of the pedals of the present invention;
FIG. 6 is a schematic structural view of the platform beam of the present invention, wherein the bottom of the tread is connected to the outer side of the platform between the lower ladders through the bottom connecting member; ,
fig. 7 is a right side view of the present invention;
fig. 8 is a front view of the present invention.
Detailed Description
The invention is further illustrated by the following specific examples.
Example 1
A lean on two-way steel ladder of wall for foundation ditch or shaft construction, includes wall body 1, staircase platform 2 and stair 3, as shown in fig. 1-8, the concrete structure is:
the inter-ladder platforms 2 are fixed on the wall body 1, the number of the support frames 11 is equal to that of the inter-ladder platforms 2, each support frame 11 is connected with one inter-ladder platform 2, the support frames 11 are embedded into the wall body 1, the inner ends of the support frames 11 are of a frame structure 111 and embedded into the wall body 1, the outer ends of the support frames 11 are support beams 112 fixed at two ends of the frame structure 111 and extend out of the wall body 1, a support column 113 is fixed below each support beam 112, the support columns 113 are attached and fixed on the wall body 1, and the top ends of the support columns 113 are connected with the inner ends of the support;
the platform 2 between ladders is shown in fig. 1-3: the platform 2 between ladders comprises platform beams 21, platform connecting rods 22, platform diagonal braces 23, platform floors 24, platform guardrails 25 and platform protecting nets 26, wherein the outer ends of supporting beams 112 are respectively connected with one platform beam 21 through connecting plates 12 and fastening bolts 13, the platform beam 21 is taken as the outer side, the other platform beam 21 is taken as the inner side, two ends of each platform connecting rod 22 are respectively connected with one platform beam 21, the two supporting beams 112 are also connected by one platform connecting rod 22, the platform connecting rods 22 are sequentially and evenly distributed along the axial direction of the platform beams 21, the rear parts of the platform beams 21 and the bottom ends of the supporting columns 113 are respectively connected by one platform diagonal brace 23, the platform floors 24 are laid on a plane enclosed by the two platform beams 21, the platform guardrails 25 are vertically fixed on the connecting lines at the outer ends of the two platform beams 21, the platform beam 21 at the outer side of the platform 2 between the uppermost ladder and the platform beam 21 at the inner side of the platform 2 between the lowermost, a platform guard net 26 is attached to the platform guard rail 25;
a stair 3 is erected between the two adjacent layers of the staircase platforms 2, and the stair 3 is shown in figures 4-6: the stair 3 comprises a pedal 31, a top connecting piece 32, a bottom connecting piece 33, a stair guardrail 34 and a stair protecting net 35, wherein the top of the pedal 31 is connected with a platform beam 21 on the inner side of the upper-layer staircase platform 2 through the top connecting piece 32, the bottom of the pedal 31 is connected with a platform beam 21 on the outer side of the lower-layer staircase platform 2 through the bottom connecting piece 33, the stair guardrail 34 is vertically fixed on two sides of the pedal 31, and the stair protecting net 35 is attached to the stair guardrail 34.
In this embodiment:
the support beam 112, the support column 113, the platform beam 21 and the platform diagonal brace 23 all adopt I-shaped steel;
the connecting plates 12 are made of steel plates, when the connecting plates 12 are connected with the supporting beams 112 and the platform beams 21, the two connecting plates 12 are respectively attached to two sides of webs of the supporting beams 112 and the platform beams 21, and then fastening bolts 13 penetrate through the webs of the two connecting plates 12 and the supporting beams 112 and the webs of the two connecting plates 12 and the platform beams 21 to be fastened and connected;
the platform connecting rods 22 connected with the supporting beams 112 and the platform connecting rods 22 connected with the outer ends of the two platform beams 21 are all made of I-shaped steel, and the rest platform connecting rods 22 are made of channel steel;
the platform floor 24 is a patterned steel plate;
the platform guard bar 25 is made of steel pipe;
the platform protecting net 26 is a dense mesh net;
the top connector 32 and the bottom connector 33 are both made of angle steel,
when the top of the step 31 is connected to the platform beam 21 inside the platform 2 of the upper staircase, as shown in fig. 5: the bottom surface of the horizontal plate of the top connecting piece 32 is attached and fixed on the platform beam 21, and the bottom surface of the top of the pedal 31 is attached and fixed on the top surface of the horizontal plate of the top connecting piece 32;
when the bottom of the step 31 is connected to the platform beam 21 outside the upper staircase platform 2, as shown in fig. 6: the bottom surface of the horizontal plate of the bottom connecting piece 33 is jointed and fixed on the platform beam 21, and the outer side surface of the vertical plate of the bottom connecting piece 33 is jointed and fixed on the inner side surface of the bottom of the pedal 31.
In this example, the following steps were performed in sequence:
a. pre-embedding: the method comprises the steps that a support frame 11 is pre-buried in a wall body 1, the inner end of the support frame 11 is a frame structure 111 and is buried in the wall body 1, the outer end of the support frame 11 is a support beam 112 fixed at two ends of the frame structure 111 and extends out of the wall body 1, a support column 113 is fixed below each support beam 112, the support columns 113 are attached and fixed on the wall body 1, and the top ends of the support columns 113 are connected with the inner ends of the support beams 112;
the support beam 112 and the support column 113 are both made of I-shaped steel;
b. fixing a platform between ladders: the platform 2 between the ladders is fixed on a wall 1 through pre-embedded support frames 11, each support frame 11 is connected with one platform 2 between the ladders, each platform 2 between the ladders comprises a platform beam 21, platform connecting rods 22, platform inclined stay bars 23, a platform floor 24, platform guardrails 25 and a platform protecting net 26, the outer ends of support beams 112 are respectively connected with one platform beam 21 through a connecting plate 12 and fastening bolts 13, one platform beam 21 is taken as the outer side, the other platform beam 21 is taken as the inner side, two ends of each platform connecting rod 22 are respectively connected with one platform beam 21, the two support beams 112 are also connected through one platform connecting rod 22, each platform connecting rod 22 is sequentially and evenly distributed along the axial direction of the platform beams 21, the rear part of the platform beams 21 and the bottom end of the support column 113 are respectively connected through one platform inclined stay bar 23, the platform floor 24 is laid on a plane enclosed by the two platform beams 21, the platform guardrails 25 are vertically fixed on the connecting line, Platform guard nets 26 are attached to platform guardrails 25 on the platform beams 21 on the outer sides of the platforms 2 in the uppermost terraced rooms and the platform beams 21 on the inner sides of the platforms 2 in the lowermost terraced rooms;
the platform beam 21 and the platform diagonal brace 23 both adopt I-shaped steel;
the connecting plates 12 are made of steel plates, when the connecting plates 12 are connected with the supporting beams 112 and the platform beams 21, the two connecting plates 12 are respectively attached to two sides of webs of the supporting beams 112 and the platform beams 21, and then fastening bolts 13 penetrate through the webs of the two connecting plates 12 and the supporting beams 112 and the webs of the two connecting plates 12 and the platform beams 21 to be fastened and connected;
the platform connecting rods 22 connected with the supporting beams 112 and the platform connecting rods 22 connected with the outer ends of the two platform beams 21 are all made of I-shaped steel, and the rest platform connecting rods 22 are made of channel steel;
the platform floor 24 is a patterned steel plate;
the platform guard bar 25 is made of steel pipe;
the platform protecting net 26 is a dense mesh net;
c. building a stair: a stair 3 is erected between the two adjacent layers of the staircase platforms 2, the stair 3 comprises a pedal 31, a top connecting piece 32, a bottom connecting piece 33, a stair guardrail 34 and a stair guard net 35, the top of the pedal 31 is connected with the platform beam 21 on the inner side of the upper-layer staircase platform 2 through the top connecting piece 32, the bottom of the pedal 31 is connected with the platform beam 21 on the outer side of the lower-layer staircase platform 2 through the bottom connecting piece 33, the stair guard bars 34 are vertically fixed on two sides of the pedal 31, and the stair guard net 35 is attached to the stair guard bars 34;
the top connector 32 and the bottom connector 33 are both made of angle steel,
when the top of the pedal 31 is connected with the platform beam 21 on the inner side of the upper-layer inter-ladder platform 2, the bottom surface of the horizontal plate of the top connecting piece 32 is attached and fixed on the platform beam 21, and the bottom surface of the top of the pedal 31 is attached and fixed on the top surface of the horizontal plate of the top connecting piece 32;
when the bottom of the pedal 31 is connected with the platform beam 21 outside the upper-layer inter-ladder platform 2, the bottom surface of the horizontal plate of the bottom connecting piece 33 is attached and fixed on the platform beam 21, and the outer side surface of the vertical plate of the bottom connecting piece 33 is attached and fixed on the inner side surface of the bottom of the pedal 31.
After all, as shown in fig. 7 and 8.
Claims (2)
1. The utility model provides a lean on two-way steel ladder of wall for foundation ditch or shaft construction, includes wall body (1) and platform (2) between the ladder, and platform (2) are fixed on wall body (1) between the ladder, characterized by: also comprises a stair (3),
the number of the supporting frames (11) is equal to that of the inter-ladder platforms (2), each supporting frame (11) is connected with one inter-ladder platform (2),
the supporting frames (11) are embedded into the wall body (1), the inner ends of the supporting frames (11) are of frame structures (111) and embedded into the wall body (1), the outer ends of the supporting frames (11) are supporting beams (112) fixed at two ends of the frame structures (111) and extend out of the wall body (1), a supporting column (113) is fixed below each supporting beam (112), the supporting columns (113) are attached and fixed on the wall body (1), and the top ends of the supporting columns (113) are connected with the inner ends of the supporting beams (112);
the platform (2) between the ladders comprises platform beams (21), platform connecting rods (22), platform inclined stay bars (23), platform floors (24), platform guardrails (25) and platform protecting nets (26), wherein the outer ends of the supporting beams (112) are respectively connected with one platform beam (21) through connecting plates (12) and fastening bolts (13), one platform beam (21) is taken as the outer side, the other platform beam (21) is taken as the inner side, two ends of each platform connecting rod (22) are respectively connected with one platform beam (21), the two supporting beams (112) are also connected through one platform connecting rod (22), the platform connecting rods (22) are sequentially and evenly distributed along the axial direction of the platform beams (21), the rear parts of the platform beams (21) are respectively connected with the bottom ends of the supporting columns (113) through one platform inclined stay bar (23), the platform floors (24) are laid on a plane enclosed by the two platform beams (21), the platform guard rails (25) are vertically fixed on a connecting line of the outer ends of the two platform beams (21), the platform beam (21) on the outer side of the platform (2) between the uppermost terraces and the platform beam (21) on the inner side of the platform (2) between the lowermost terraces, and the platform guard rails (25) are pasted with platform guard nets (26);
set up stair (3) between two adjacent layers of staircase platform (2), stair (3) are including footboard (31), top connecting piece (32), end connecting piece (33), stair guardrail (34) and stair protecting wire net (35), the top of footboard (31) is passed through top connecting piece (32) and is connected the inboard platform roof beam (21) of upper staircase platform (2), the bottom of footboard (31) is passed through end connecting piece (33) and is connected platform roof beam (21) in lower layer staircase platform (2) outside, stair guardrail (34) are fixed perpendicularly in footboard (31) both sides, stair guardrail (34) are gone up to paste and are covered stair protecting wire net (35).
2. A wall-approaching two-way steel ladder for foundation pit or shaft construction according to claim 1, wherein:
the supporting beam (112), the supporting column (113), the platform beam (21) and the platform diagonal brace (23) are all made of I-shaped steel;
the connecting plates (12) are made of steel plates, when the connecting plates (12) are connected with the supporting beam (112) and the platform beam (21), the two connecting plates (12) are respectively attached to two sides of webs of the supporting beam (112) and the platform beam (21), and then fastening bolts (13) penetrate through the webs of the two connecting plates (12) and the supporting beam (112) and the webs of the two connecting plates (12) and the platform beam (21) to be fastened and connected;
the platform connecting rods (22) connected with the supporting beams (112) and the platform connecting rods (22) connected with the outer ends of the two platform beams (21) are all made of I-shaped steel, and the rest platform connecting rods (22) are made of channel steel;
the platform floor (24) is made of steel plates;
the platform guardrail (25) is made of steel pipes;
the platform protection net (26) is a dense mesh net;
the top connecting piece (32) and the bottom connecting piece (33) both adopt angle steel,
when the top of the pedal (31) is connected with a platform beam (21) on the inner side of the upper-layer inter-ladder platform (2), the bottom surface of the horizontal plate of the top connecting piece (32) is attached and fixed on the platform beam (21), and the bottom surface of the top of the pedal (31) is attached and fixed on the top surface of the horizontal plate of the top connecting piece (32);
when the bottom of the pedal (31) is connected with a platform beam (21) on the outer side of the upper-layer inter-ladder platform (2), the bottom surface of the horizontal plate of the bottom connecting piece (33) is attached and fixed on the platform beam (21), and the outer side surface of the vertical plate of the bottom connecting piece (33) is attached and fixed on the inner side surface of the bottom of the pedal (31).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099021.4U CN211473514U (en) | 2019-11-29 | 2019-11-29 | Wall-leaning bidirectional steel ladder for foundation pit or vertical shaft construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922099021.4U CN211473514U (en) | 2019-11-29 | 2019-11-29 | Wall-leaning bidirectional steel ladder for foundation pit or vertical shaft construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211473514U true CN211473514U (en) | 2020-09-11 |
Family
ID=72362991
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922099021.4U Expired - Fee Related CN211473514U (en) | 2019-11-29 | 2019-11-29 | Wall-leaning bidirectional steel ladder for foundation pit or vertical shaft construction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211473514U (en) |
-
2019
- 2019-11-29 CN CN201922099021.4U patent/CN211473514U/en not_active Expired - Fee Related
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Granted publication date: 20200911 |
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| CF01 | Termination of patent right due to non-payment of annual fee |