CN114701949A - Method for installing main girder of bridge crane of main power house of pump station - Google Patents
Method for installing main girder of bridge crane of main power house of pump station Download PDFInfo
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- CN114701949A CN114701949A CN202210247207.3A CN202210247207A CN114701949A CN 114701949 A CN114701949 A CN 114701949A CN 202210247207 A CN202210247207 A CN 202210247207A CN 114701949 A CN114701949 A CN 114701949A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C6/00—Girders, or track-supporting structures, specially adapted for cranes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C13/00—Other constructional features or details
- B66C13/04—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack
- B66C13/08—Auxiliary devices for controlling movements of suspended loads, or preventing cable slack for depositing loads in desired attitudes or positions
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03B—INSTALLATIONS OR METHODS FOR OBTAINING, COLLECTING, OR DISTRIBUTING WATER
- E03B5/00—Use of pumping plants or installations; Layouts thereof
- E03B5/02—Use of pumping plants or installations; Layouts thereof arranged in buildings
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H5/00—Buildings or groups of buildings for industrial or agricultural purposes
- E04H5/02—Buildings or groups of buildings for industrial purposes, e.g. for power-plants or factories
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
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- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Health & Medical Sciences (AREA)
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- Hydrology & Water Resources (AREA)
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- Water Supply & Treatment (AREA)
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Abstract
The invention discloses a method for installing a main girder of a bridge crane of a main power house of a pump station, which comprises the following steps: s1, erecting a bridge crane track beam and a support system; s2, connecting the bridge crane track beam with a support system, and connecting the inner part and the outer part of the bridge crane track beams between the installation rooms to form track beams; s3, hoisting an upstream side end beam and a downstream side end beam of the installation room; s4, hoisting and translating the first main beam; s5, hoisting a second main beam; s6, mounting auxiliary equipment of the bridge crane; s7, the whole bridge crane moves transversely. The invention not only avoids the process time waste of the prior earth anchor mode on the appearance quality of the structure and before the construction of decoration, but also avoids the safety risk of the crane directly entering the interior of the building due to the increase of space limitation and the adverse effect on the stability of the building due to point stress in the hoisting process, and the hoisting construction of the main beam and the accessory components of the bridge crane cannot cause any influence on the civil engineering construction in space, realizes parallel operation among the processes, and greatly shortens the process intermittence time.
Description
Technical Field
The invention relates to the field of water conservancy and hydropower equipment installation, in particular to a method for installing a bridge crane main beam of a main power house of a pump station.
Background
Pumping stations for taking water from rivers (channels or lakes) are generally divided into two arrangements, namely an arrangement with an approach channel and an arrangement without an approach channel. When the distance between the water source and the control elevation of the irrigation area is long and the terrain of the station is flat, the arrangement form of the approach channel is adopted, the approach channel guides water from the water source to the front of the pump room, and the pump room is close to the irrigation area, so that the length of the water outlet pipeline can be shortened. When the irrigation area is close to a water source or the ground slope of a station site is steep, an arrangement form of a pump station without an approach channel is adopted, namely a pump house is built on the bank side of the water source, and water is directly taken from the water source. The disadvantage of this arrangement is that the water level of the water source directly affects the operation of the pump and the flood control of the pump house. When water is taken from the upstream of a reservoir or a river or lake with large water level amplitude, the water level amplitude is large, and when a fixed pump station is difficult to arrange, a movable pump station can be adopted.
A certain project pump station pivot under construction comprises buildings such as diversion pump station, ship lock, sluicing lock, fall water culvert, connecting channel and bank revetment of bank both sides, and design flow 340m year/s, water pump unit 8 sets are adorned altogether to total installed capacity 60000 kW. A main factory building of the pump station is provided with one double-girder bridge crane (simply called bridge crane), a girder span 19m, a main hook lifting capacity 75t and an auxiliary hook lifting capacity 20 t.
This two girder bridge crane tracks is 3.5m to the distance of structure thing peak, and the rail top is 4m apart from factory building roof bottom, two girder bridge crane peaks are 50cm apart from the factory building top bottom, the space is not enough, it is pre-buried to have inconvenient sky anchor and earth anchor of carrying on, frame structure has closed the top between the installation, the problem that highly can not satisfy the crane davit and extend, simultaneously because factory building ground design intensity, can't satisfy heavy hoisting apparatus entering condition, therefore can't accomplish the construction task according to the matter on time in the time limit for a project.
Disclosure of Invention
The invention solves the technical problem that the height of the highest point of a double-girder bridge crane from the top bottom of a plant is not enough, so that a sky anchor and a ground anchor are inconvenient to embed, and the height cannot meet the requirement of the extension of a crane jib due to the fact that a frame structure of an installation room is already closed.
In order to solve the technical problems, the technical scheme adopted by the invention is to provide a method for installing a main girder of a bridge crane of a main power house of a pump station, which comprises the following steps:
s1, erecting a bridge crane track beam and a support system;
s2, connecting the bridge crane track beam with a support system, and connecting the inner part and the outer part of the bridge crane track beams between the installation rooms to form track beams;
s3, hoisting an upstream side end beam and a downstream side end beam of the installation room;
s4, hoisting and translating a first main beam: hoisting the first main beam by using a truck crane and moving the first main beam to the direction of the installation room;
s5, hoisting a second main beam: hoisting a second main beam by using a truck crane, and horizontally moving to adjust the position of the second main beam;
s6, mounting bridge crane auxiliary equipment;
s7, the bridge crane is wholly transversely moved, and subsequent construction is carried out by utilizing a bridge crane main body consisting of a first main beam, a second main beam and upstream and downstream side end beams;
the specific operation of step S1 is: before the support system is erected, firstly leveling and compacting a backfill soil surface outside an installation room, pouring a concrete cushion, and erecting the support system above the concrete cushion; the support system comprises a vertical rod socket type disc buckle type scaffold, a leveling jacking is arranged at the top end of the scaffold, a plurality of transverse I-shaped bearing rods are fixed through the leveling jacking, and two longitudinal I-shaped rails are fixed at the tops of the transverse I-shaped bearing rods and serve as external rail beams.
Specifically, the specific operation of step S2 is: the inner track beam is arranged on the bracket of the side column between the installation rooms, the outer track beam and the inner track beam are aligned, and the inner track beam and the outer track beam are communicated after the expansion joint is reserved.
Furthermore, a backing plate is arranged on the bracket of the side column, a first connecting plate is arranged at the inner end of the backing plate, and the bottom of the inner track beam is fixedly connected with the first connecting plate; the outer end of the base plate is provided with a pad table, the outer end of the top of the pad table is provided with a second connecting plate, and the bottom of the external track beam is fixedly connected with the second connecting plate; and the tops of the inner track beam and the outer track beam are fixedly connected with embedded parts on the side columns.
Specifically, the specific operation of step S3 is: the method comprises the steps of firstly hoisting an upstream side end beam and a downstream side end beam by using a truck crane, respectively fixing the upstream side end beam and the downstream side end beam on an external track beam on the upstream side and the downstream side, and arranging a side end beam limiting vertical stop at the end of the internal track beam in an installation room.
Specifically, the specific operation of step S4 is: the method comprises the steps of hoisting a first main beam by using a truck crane, erecting a small tractor on one side of the first main beam close to an installation room, translating the first main beam on a side edge end beam to one side of the installation room by using the small tractor, fixing the first main beam after the first main beam is fixed, and plugging a gap between the side edge end beam and a track beam by using a wedge iron.
Specifically, the specific operation of step S5 is: and hoisting the second main beam by using a truck crane, adjusting the position of the second main beam on the side end beam by using a small tractor, and fixing the second main beam to finish the hoisting of the main beam.
Furthermore, the two ends of the main beam are required to be provided with stabilizing ropes in the hoisting process of the main beam.
Specifically, in step S1, the concrete pad is a 15cm thick C15 secondary concrete pad, and a support system is set up after the strength reaches at least 75%.
Particularly, the vertical rod socket type disc buckle type scaffold is erected to longitudinally span 0.9m, span 0.9m and have a step pitch of 1.5m, the Shuxiang diagonal rods are fully distributed, and the horizontal rods are provided with horizontal layer diagonal rods or fastener steel pipe cross braces at intervals of 4-6 standard step pitches along the height.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the invention not only avoids the process time waste of adopting the modes of 'pre-buried anchor hooks + windlasses + electric hoists' to greatly cut off the appearance quality of the structure and before the construction of decoration, but also avoids the safety risk of the wheel crane directly entering the interior of the building due to the increase of the space limitation and the adverse influence on the stability of the structure due to point stress in the hoisting process. In actual operation, the hoisting construction of the main beam and the auxiliary components of the bridge crane does not influence the civil engineering construction in space, and parallel operation is realized among all the working procedures, so that the intermittent time of the working procedures is greatly shortened.
2. The invention fully utilizes the concept of permanent temporary combination by adopting the mode of erecting a supporting platform outside a structure by adopting the socket type disc buckle scaffold, namely: the scaffold foundation can be used as a roadbed leading to an inspection road of an installation room in the later period, and the I-shaped steel beam related to the scaffold platform can be used as internal fixed assets of a company and used for building a factory building in a newly-started project, so that material waste is avoided.
3. The disk-buckle type scaffold changes the mode that a plurality of components are needed to form a frame body of the fastener type steel pipe scaffold, eliminates the irregular erection behavior of operating personnel, has high erection and disassembly efficiency, good reliability and safety, energy conservation and environmental protection, greatly saves the time and labor for safe disassembly, and has the labor force and time efficiency about 4-6 times of that of the fastener type scaffold. Compared with the conventional bridge crane hoisting construction method, the construction and installation cross interference time is reduced by about 15 days, the construction progress can be effectively accelerated, the construction period is saved, and the method has great economic benefit.
Drawings
FIG. 1 is a schematic side view of the present invention.
FIG. 2 is a top cross-sectional view of the support system.
Fig. 3 is an enlarged schematic view of a portion a in fig. 1.
Fig. 4 is a schematic diagram of step S4.
FIG. 5 is a schematic view of the connection between the first main beam, the second main beam and the side end beam.
The explanation of each reference number in the figure is: support system-1; leveling jacking-11; a transverse I-shaped bearing rod-12; a longitudinal i-rail-13; a mounting room-2; an upstream side end beam-21; a side end beam limiting vertical stop-211; a downstream side end beam-22; concrete pad-23; side column-24; bracket-25; a backing plate-26; a first connecting plate-27; a pad table-28; a second connecting plate-29; a first main beam-3; a second main beam-4; .
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.
As shown in figure 1, the method for installing the main girder of the bridge crane of the main power house of the pump station comprises the following steps:
s1, erecting a bridge crane track beam and a support system 1;
s2, connecting the bridge crane track beam with the support system 1, and connecting the inner part and the outer part of the bridge crane track beams in the installation room 2 to form a track beam;
s3, hoisting the upstream side end beam 21 and the downstream side end beam 22 of the installation room 2;
s4, hoisting and translating the first main beam 3: hoisting the first main beam 3 by using a truck crane and moving towards the installation room 2;
s5, hoisting the second main beam 4: hoisting the second main beam 4 by using a truck crane, and horizontally moving and adjusting the position of the second main beam 4;
s6, mounting auxiliary equipment of the bridge crane;
s7, the bridge crane is wholly transversely moved, and subsequent construction is carried out by utilizing a bridge crane main body consisting of the first main beam 3, the second main beam 4 and upstream and downstream side end beams;
the specific operation of step S1 is: before the support system 1 is erected, firstly leveling and compacting a backfill soil surface outside the installation room 2, pouring a concrete cushion 23, and erecting the support system 1 above the concrete cushion 23; the support system 1 comprises a vertical rod socket type disc buckle type scaffold, a leveling jacking 11 is arranged at the top end of the scaffold, a plurality of transverse I-shaped bearing rods 12 are fixed through the leveling jacking 11, and two longitudinal I-shaped rails 13 are fixed at the tops of the transverse I-shaped bearing rods 12 and serve as external rail beams.
The core principle of the invention is that a supporting system 1 is erected outside an installation room 2, an external track beam is erected on the top of the supporting system 1, an internal track beam is erected by utilizing internal structures such as a side column 24 and a corbel 25 inside the installation room 2, and the track beam outside the installation room 2 and the track beam inside the installation room 2 are connected into a whole to be used as the track beam of the bridge crane. The method comprises the steps of firstly erecting upstream side edge end beams and downstream side edge end beams in a truck crane subsection hoisting mode, then hoisting a first main beam 3, moving the first main beam 3 to reserve a hoisting position for a second main beam 4, then hoisting the second main beam 4, connecting the hoisted first main beam 3, the second main beam 4, an upstream side edge end beam 21 and a downstream side edge end beam 22 into a whole to serve as a main body of the bridge crane, installing auxiliary equipment, and finally moving the whole bridge crane into an installation room 2 through a track beam, thereby achieving the installation work of the double-main-beam bridge crane.
As a preferred embodiment, the specific operation of step S2 is: an inner track beam is arranged on a bracket 25 of a side column 24 of the installation room 2, the outer track beam and the inner track beam are aligned, and an expansion joint is reserved between the inner track beam and the outer track beam and then communicated.
As a further embodiment, a backing plate 26 is arranged on the bracket 25 of the side pillar 24, a first connecting plate 27 is arranged at the inner end of the backing plate 26, and the bottom of the inner track beam is fixedly connected with the first connecting plate 27; a pad table 28 is arranged at the outer end of the pad plate 26, a second connecting plate 29 is arranged at the outer end of the top of the pad table 28, and the bottom of the external track beam is fixedly connected with the second connecting plate 29; the tops of the inner track beam and the outer track beam are fixedly connected with embedded parts on the side columns 24.
In this embodiment, since the height difference between the external track beam and the internal track beam is 10cm, the bottom of the beam end of the external connection track beam is raised by the backing plate 26, the internal track beam is welded with the first connection plate 27 and the embedded parts at the top of the side posts 24, and the first connection plate 27 and the internal track beam, and the second connection plate and the external track beam are connected by bolts, so that the beam end connection is consistent with the inter-unit section design connection form.
As a preferred embodiment, the specific operation of step S3 is: the upstream side end beam 21 and the downstream side end beam 22 are first hoisted by a truck crane, the upstream side end beam 21 and the downstream side end beam 22 are respectively fixed on the external track beams on the upstream side and the downstream side, and the end of the internal track beam in the installation room 2 is provided with a side end beam limiting vertical stop 211.
In this embodiment, the upstream side end beam 21 and the downstream side end beam 22 are firmly connected to the track beam by using the connecting bolt in the hoisting process, and are firmly supported by using the jack. Then the hook is released, and the side end beam limiting vertical stop 211 is additionally arranged at the tail ends of the upstream side end beam 21 and the downstream side end beam 22, so that the side end beam is prevented from slipping caused by excessive movement of the side end beam in the subsequent moving process.
As a preferred embodiment, the specific operation of step S4 is: the method comprises the steps of hoisting a first main beam 3 by using a truck crane, erecting a small tractor on one side, close to an installation room 2, of the first main beam 3, translating the first main beam 3 on a side edge end beam to one side of the installation room 2 by using the small tractor, fixing the first main beam 3 afterwards, and plugging a gap between the side edge end beam and a track beam through a wedge iron.
In this embodiment, a 100t truck crane is adopted to firstly hoist the first main beam 3, then a small-sized machine such as a hand hoist is used to manually drag and transport the first main beam 3 to one side of the installation room 2 for 3m, one end of the hand hoist is fixed on a bolt hole on the steel beam by a steel wire rope, one end of the hand hoist is fixed on the first main beam 3, two sides are synchronously exerted to stably drag and transport the first main beam, the first main beam is required to be dragged and transported to a position where the hoisting of the second main beam 4 is not influenced, and finally a wedge iron is adopted to tightly plug a gap between a wheel of the side end beam and the track beam so as to prevent the wheel from rolling on the track beam to cause danger.
As a preferred embodiment, the specific operation of step S5 is: and hoisting the second main beam 4 by using a truck crane, adjusting the position of the second main beam 4 on the side end beam by using a small tractor, and fixing the second main beam 4 to finish the hoisting of the main beam.
In this embodiment, the second main beam 4 is manually dragged and transported to the position of connection with the side end beam by a hand hoist. Then the connecting bolts are penetrated and several bolts are tightened. And finally, a temporary operation platform is erected between the two main beams, scaffold boards are laid, and iron wires are adopted for binding firmly, so that the method is mainly used for mounting and constructing the main beams and the side end beam connecting bolts.
As a further example, it is necessary to provide stabilizing ropes at both ends of the main beam during the hoisting process of the main beam.
In this embodiment, in the construction process of hoisting the main beam, it is required to bolt a stabilizing rope at two ends of the main beam to prevent the main beam from rotating in the hoisting process.
After the first main beam 3, the second main beam 4 and the side end beams are hoisted and installed in place, the whole bridge crane is dragged into the installation room 2, and finally auxiliary equipment such as a double-main-beam bridge type maintenance platform, a trolley slide wire frame, a railing, a travel switch and the like are installed, and meanwhile, electrical equipment, wiring, inspection tests and the like are installed.
As a preferred embodiment, in step S1, the concrete pad 23 is a 15cm thick C15 secondary concrete pad, and the support system 1 is set up after the strength reaches at least 75%.
As a preferred embodiment, the vertical pole socket type disc buckle type scaffold is erected with a longitudinal span of 0.9m, spans 0.9m and has a step pitch of 1.5m, the vertical inclined poles are fully distributed, and the horizontal poles are provided with horizontal layer inclined poles or fastener steel pipe cross braces at intervals of 4-6 standard step pitches along the height.
In this embodiment, the support system 1 and the cast structure of the installation room 2 are connected by fastener steel pipes in the form of anchor ears, and the connection height with the pillars is set in 2 steps. After the supporting system 1 is erected, after the jacking is leveled, 14# I-shaped steel is placed on the upper part of the supporting system to serve as a transverse I-shaped bearing rod 12, and in order to prevent sliding, the transverse I-shaped bearing rod 12 is connected with the leveling jacking 11 in a welding mode. The longitudinal I-shaped rail 13 is fixedly installed to finish hoisting the rail beam, the longitudinal I-shaped rail 13 is connected with the transverse I-shaped bearing rod 12 through angle steel in a welded mode, one end of each angle steel is welded on a rib plate of the longitudinal I-shaped rail 13, the other end of each angle steel is welded on the transverse I-shaped bearing rod 12, and the two sides of each angle steel are symmetrically connected according to the length of 1.5m to prevent the rail beam from toppling and laterally moving.
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 invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art 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 these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. A method for installing a main girder of a bridge crane of a main power house of a pump station is characterized by comprising the following steps:
s1, erecting a bridge crane track beam and a support system (1);
s2, connecting the bridge crane track beam with the support system (1), and connecting the inner part and the outer part of the bridge crane track beam in the installation room (2) to form a track beam;
s3, hoisting an upstream side edge end beam (21) and a downstream side edge end beam (22) of the installation room (2);
s4, hoisting and translating the first main beam (3): hoisting the first main beam (3) by using a truck crane and moving the first main beam towards the installation room (2);
s5, hoisting a second main beam (4): hoisting the second main beam (4) by using a truck crane, and adjusting the position of the second main beam (4) in a translation manner;
s6, mounting auxiliary equipment of the bridge crane;
s7, the bridge crane is wholly transversely moved, and subsequent construction is carried out by utilizing a bridge crane main body consisting of a first main beam (3), a second main beam (4) and upstream and downstream side end beams;
the specific operation of step S1 is: before the support system (1) is erected, firstly, leveling and compacting a backfill soil surface outside the installation room (2), pouring a concrete cushion layer (23), and erecting the support system (1) above the concrete cushion layer (23); the support system (1) includes pole setting socket joint type dish knot formula scaffold frame the scaffold top sets up leveling top support (11) to support (11) through leveling and fix a plurality of horizontal I-shaped and hold pole (12) horizontal I-shaped holds pole (12) top and fixes two vertical I-shaped tracks (13), as outside track roof beam.
2. The method for installing the main girder of the bridge crane of the main building of the pump station according to claim 1, wherein the specific operations of the step S2 are as follows: an inner track beam is arranged on a bracket (25) of a side column (24) of the installation room (2), the outer track beam and the inner track beam are aligned, and an expansion joint is reserved between the inner track beam and the outer track beam and then communicated.
3. The method for installing the main girder of the main building bridge crane of the pump station according to claim 2, wherein a backing plate (26) is arranged on a bracket (25) of the side column (24), a first connecting plate (27) is arranged at the inner end of the backing plate (26), and the bottom of the inner track beam is fixedly connected with the first connecting plate (27); a cushion table (28) is arranged at the outer end of the cushion plate (26), a second connecting plate (29) is arranged at the outer end of the top of the cushion table (28), and the bottom of the external track beam is fixedly connected with the second connecting plate (29); the tops of the inner track beam and the outer track beam are fixedly connected with embedded parts on the side columns (24).
4. The method for installing the main girder of the bridge crane of the main building of the pump station according to claim 1, wherein the specific operations of the step S3 are as follows: an upstream side edge end beam (21) and a downstream side edge end beam (22) are hoisted by using a truck crane, the upstream side edge end beam (21) and the downstream side edge end beam (22) are respectively fixed on external track beams on the upstream side and the downstream side, and a side edge end beam limiting vertical stop (211) is arranged at the end of the internal track beam in the installation room (2).
5. The method for installing the main girder of the bridge crane of the main building of the pump station according to claim 1, wherein the specific operations of the step S4 are as follows: the method comprises the steps of hoisting a first main beam (3) by adopting a truck crane, erecting a small tractor on one side, close to an installation room (2), of the first main beam (3), translating the first main beam (3) on a side edge end beam to one side of the installation room (2) by using the small tractor, fixing the first main beam (3) afterwards, and plugging a gap between the side edge end beam and a track beam through a wedge iron.
6. The method for installing the main girder of the bridge crane of the main building of the pump station according to claim 1, wherein the specific operation of the step S5 is as follows: and hoisting the second main beam (4) by adopting a truck crane, adjusting the position of the second main beam (4) on the side end beam by utilizing a small tractor, and fixing the second main beam (4) to finish the hoisting of the main beam.
7. The method for installing the main girder of the main building bridge crane of the pump station according to claim 5 or 6, wherein a stabilizing rope is required to be arranged at two ends of the main girder in the process of hoisting the main girder.
8. The method for installing the main girder of the main building bridge crane of the pump station according to claim 1, wherein in step S1, the concrete cushion (23) is a C15 secondary concrete cushion with the thickness of 15cm, and the support system (1) is erected after the strength reaches at least 75%.
9. The method for installing the main girder of the main building bridge crane of the pump station according to claim 1, wherein the vertical rod socket type disk buckle type scaffold is erected with a longitudinal span of 0.9m, a span of 0.9m and a step pitch of 1.5m, the vertical inclined rods are fully arranged, and the horizontal rods are provided with horizontal layer inclined rods or fastener steel pipe cross braces at intervals of 4-6 standard step pitches along the height.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210247207.3A CN114701949A (en) | 2022-03-14 | 2022-03-14 | Method for installing main girder of bridge crane of main power house of pump station |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210247207.3A CN114701949A (en) | 2022-03-14 | 2022-03-14 | Method for installing main girder of bridge crane of main power house of pump station |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450438A (en) * | 2022-09-13 | 2022-12-09 | 广州机施建设集团有限公司 | Construction method of steel structure corridor |
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2022
- 2022-03-14 CN CN202210247207.3A patent/CN114701949A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450438A (en) * | 2022-09-13 | 2022-12-09 | 广州机施建设集团有限公司 | Construction method of steel structure corridor |
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