CN111395185A - System and method for applying electric bridge type scaffold platform to construction of equal-section high pier - Google Patents
System and method for applying electric bridge type scaffold platform to construction of equal-section high pier Download PDFInfo
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- CN111395185A CN111395185A CN202010241737.8A CN202010241737A CN111395185A CN 111395185 A CN111395185 A CN 111395185A CN 202010241737 A CN202010241737 A CN 202010241737A CN 111395185 A CN111395185 A CN 111395185A
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/20—Movable forms; Movable forms for moulding cylindrical, conical or hyperbolical structures; Templates serving as forms for positioning blocks or the like
- E04G11/28—Climbing forms, i.e. forms which are not in contact with the poured concrete during lifting from layer to layer and which are anchored in the hardened concrete
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G13/00—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills
- E04G13/02—Falsework, forms, or shutterings for particular parts of buildings, e.g. stairs, steps, cornices, balconies foundations, sills for columns or like pillars; Special tying or clamping means therefor
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G3/00—Scaffolds essentially supported by building constructions, e.g. adjustable in height
- E04G3/28—Mobile scaffolds; Scaffolds with mobile platforms
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The system is composed of the electric bridge type scaffold platform, a high pier, a creeping formwork, a connecting part with the high pier and a butting part with the creeping formwork; the electric bridge type scaffold platform consists of a foundation, a driving device, a platform assembly, a standard section upright post and a control unit; the part connected with the high pier consists of an embedded part, an attachment support, an attachment rod and an attachment frame which are embedded in the high pier in advance; the part of the butt joint part with the creeping formwork is used for realizing the butt joint of a channel by an electric bridge type scaffold platform and a lower hanging platform at the bottom layer of the creeping formwork; the creeping formwork consists of a creeping formwork upper platform, a creeping formwork main platform and a creeping formwork lower platform. The invention ensures the safety of high pier construction when the high pier construction of the bridge is carried out, solves the problems of personnel lifting and pier body surface modification operation during the construction, reduces the construction cost and improves the economic benefit; and the installation operation is simple, and the turnover use is high-efficient.
Description
Technical Field
The invention belongs to the technical field of bridge engineering construction, and particularly relates to a system and a method for applying an electric bridge type scaffold platform to constant-section high pier construction.
Background
In the construction of the traditional bridge high pier, two modes of setting up a climbing ladder or installing a construction elevator are usually adopted when a constructor arrives at an operation surface. When the height of the high pier is below 40m, a climbing ladder is generally adopted, but a worker needs a certain time to climb up and down the climbing ladder and consumes physical power, the working efficiency is low, the labor intensity is high, and great potential safety hazards exist; the high mound height generally adopts above 40 meters and goes up the construction elevator, but the construction elevator can't reach the high mound operation layer, need take the cat ladder in addition from top to bottom, and the installation is dismantled again and is restricted by construction place and equipment, especially if do not have hoisting equipment cooperation when adhering to the pole and demolising, the manual work is demolishd badly great, and has certain potential safety hazard, and economic cost is higher.
Disclosure of Invention
Based on the existing construction problems, the invention provides a system and a method for constructing a constant-section high pier by using an electric bridge type scaffold platform, which are used for solving the problem that people are inconvenient to go up and down in the high pier construction.
The invention is realized by the following technical scheme.
The electric bridge type scaffold platform is used for a system for constructing high piers with equal sections, and consists of an electric bridge type scaffold platform, high piers, a creeping formwork, a part connected with the high piers and a part butted with the creeping formwork; wherein the content of the first and second substances,
the electric bridge type scaffold platform consists of a foundation, a driving device, a platform assembly, a standard section upright post and a control unit; the part connected with the high pier consists of an embedded part, an attachment support, an attachment rod and an attachment frame which are embedded in the high pier in advance; the part of the butt joint part with the creeping formwork is used for realizing the butt joint of a channel by an electric bridge type scaffold platform and a lower hanging platform at the bottom layer of the creeping formwork; the creeping formwork consists of a creeping formwork upper platform, a creeping formwork main platform and a creeping formwork lower platform;
the embedded part of the part connected with the high pier is arranged at the pre-installation position of the attachment rod before the concrete is poured on the pier body; the attachment support is welded on the embedded part, and the attachment rod is connected with the attachment support through a bolt; an attachment frame is arranged on a standard section upright post of the electric bridge type scaffold platform, and an attachment rod and the attachment frame are fixed by a right-angle fastener;
the foundation is based on a field high pier bearing platform; when the on-site high pier bearing platform does not meet the requirement of building a platform, a steel cantilever frame mode is used as a foundation; when the high pier is in the river or has water, the steel bracket mode is adopted as the foundation.
Preferably, the part in butt joint with the creeping formwork is formed by reserving a gap on a lower hanging platform at the bottom layer of the creeping formwork, and an electric interlocking safety door is arranged on the side surface of the gap; and installing the standard section upright post of the electric bridge type scaffold platform into the lower lifting platform at the bottom layer of the creeping formwork, so that the electric bridge type scaffold platform and the lower lifting platform of the creeping formwork realize plane butt joint.
Further, the gap and the electric interlocking safety door are specifically arranged as follows: a10 cm gap is reserved at the butt joint of a lower lifting platform and an electric bridge type scaffold platform at the bottom layer of the creeping formwork, an electric interlocking safety door is installed in the opening end of the lower lifting platform in an inward-retracting mode by 10cm, the electric interlocking safety door and the electric bridge type scaffold platform form electric interlocking, and the safety door cannot be powered on to operate when not closed.
Preferably, the embedded part is an embedded steel plate and/or an embedded creeping cone.
Preferably, the included angle of the attaching rods is controlled to be 30-55 degrees, the length is not more than 200cm, and the distance is not more than 600 cm.
Preferably, the specification of the high-strength bolt in the embedded climbing cone is not less than M16 × 140mm, and the positioning steel plate in the embedded climbing cone is a thin steel plate.
Preferably, the steel cantilever is based on 200 × 200h steel.
Preferably, an electric bridge type scaffold platform guard rail is arranged on the electric bridge type scaffold platform, the electric bridge type scaffold platform guard rail is 150cm high, and a punching net with the thickness of 0.07cm and the hole of 1cm is adopted for peripheral protection.
The invention also discloses a method for constructing the equal-section high pier by using the electric bridge scaffold platform, which adopts field installation for construction and comprises the following steps:
a. on-site reconnaissance of construction conditions → drawing design → writing of special project → expert demonstration → convergence of special project;
b. installing and positioning at a construction site: determining the installation position of the electric bridge type scaffold platform according to the scheme and the site basic conditions;
c. installing an electric bridge type scaffold platform in the following sequence: installing a driving unit → installing a standard section upright post → installing a platform assembly → installing a control unit and electrical equipment → installing a starting platform and connecting the upright post in parallel, synchronously installing an attachment rod and the standard section upright post → circularly installing the attachment rod and the standard section upright post in a lower hanging platform of the creeping formwork; after the platform is installed, carrying out load test on the platform of the electric bridge type scaffold and checking and accepting, wherein the platform can be used after being qualified;
d. positioning and pre-embedding the pre-embedded part;
e. after climbing the high-pier creeping formwork, welding the attachment support on the embedded part, then installing the attachment rod, connecting the attachment rod with the attachment support through a bolt, and then fixing the attachment rod and the attachment frame through a right-angle fastener;
f. the standard section upright post of the electric bridge type scaffold platform is arranged in the lower hanging platform of the high pier creeping formwork and rises to the same height with the lower hanging platform of the high pier creeping formwork, so that plane butt joint is realized.
According to the invention, the electric bridge type scaffold platform can be lifted and lowered by people in high pier construction, the high pier bearing platform can be used as an installation foundation of the electric bridge type scaffold, the requirement on safe use is met by rigid connection of the embedded part and the attachment rod, and the electric bridge type scaffold platform is horizontally butted with the climbing formwork lower hanging platform, so that the use safety is ensured.
The invention ensures the safety of high pier construction when the high pier construction of the bridge is carried out, solves the problems of personnel lifting and pier body surface modification operation during the construction, reduces the construction cost and improves the economic benefit; and the installation operation is simple, and the turnover use is high-efficient.
Drawings
Fig. 1 is a schematic view of an electric bridge scaffold platform of the present invention;
FIG. 2a is a schematic front view of a steel cantilever foundation;
FIG. 2b is a schematic side view of a steel outrigger base;
FIG. 2c is a schematic plan view of the base of the steel cantilever;
FIG. 2d is a schematic front view of the steel bracket foundation;
FIG. 2e is a schematic side view of the steel bracket base;
FIG. 2f is a schematic plan view of the base of the steel bracket;
FIG. 3a is a schematic diagram of a steel plate embedment;
FIG. 3b is a schematic view (one) of a cone-climbing type embedded part;
FIG. 3c is a schematic view (II) of a cone-climbing type embedded part;
FIG. 4 is a schematic plan view of an application of the present technique;
FIG. 5 is a schematic elevation view of the application of the present technique;
in the figure: 1-foundation, 2-driving device, 3-platform assembly, 4-section-marked upright post, 5-control unit, 6-embedded part, 7-attachment support, 8-attachment rod, 9-attachment frame, 10-climbing formwork upper platform, 11-climbing formwork main platform, 12-climbing formwork lower platform, 13-climbing formwork electric interlocking door, 14-electric platform telescopic door, 15-high pier bearing platform, 16-high pier body, 17-steel support, 18-climbing formwork lower lifting platform bottom plate, 19-concrete surface, 20-anchor plate, 21-high-strength bolt, 22-structural steel bar, 23-climbing cone, 24-high-strength screw rod, 25-embedded part plate, 26-positioning nut and 27-positioning steel plate.
Detailed Description
Embodiments of the present invention will now be described with reference to the accompanying drawings. The invention provides a system and a method for applying an electric bridge type scaffold platform to constant-section high pier construction, which are used for solving the problems of upper and lower operation surfaces of personnel and pier surface modification in the high pier construction, but are not limited to the above problems, and can also be applied to similar construction technologies in other industries. It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The specific techniques, connections, conditions, or the like, which are not specified in the examples, are performed according to the techniques, connections, conditions, or the like described in the literature in the art or according to the product specification. The materials, instruments or equipment are not indicated by manufacturers, and all the materials, instruments or equipment are conventional products which can be obtained by purchasing.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "provided" are to be construed broadly, e.g., as being fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. To those of ordinary skill in the art, the specific meanings of the above terms in the present invention are understood according to specific situations.
The structure of the present invention will be described below with reference to the accompanying drawings.
Referring to fig. 1 to 5, the system for constructing the equal-section high piers by using the electric bridge scaffold platform provided by the invention comprises the electric bridge scaffold platform, the high piers, a creeping formwork, a connecting part with the high piers and a butting part with the creeping formwork; the electric bridge type scaffold platform is composed of a foundation 1, a driving device 2, a platform assembly 3, a standard section upright post 4 and a control unit 5; the part connected with the high pier consists of an embedded part 6 embedded in the high pier in advance, an attachment support 7, an attachment rod 8 and an attachment frame 9; the part for butting with the creeping formwork realizes plane butting by an electric bridge type scaffold platform and a creeping formwork lower hanging platform; the creeping formwork consists of a creeping formwork upper platform, a creeping formwork main platform and a creeping formwork lower platform; the electric bridge type scaffold platform is a mature product and can be purchased in the market.
The embedded part 6 of the part connected with the high pier is arranged at the pre-installation position of the attachment rod 8 before the concrete is poured on the pier body; the attachment support 7 is welded on the embedded part 6, and the attachment rod 8 is connected with the attachment support 7 through a bolt; an attachment frame 9 is arranged on the section marking upright post 4 of the electric bridge type scaffold platform, and an attachment rod 8 and the attachment frame 9 are fixed by a right-angle fastener;
the foundation 1 is based on a field high pier bearing platform; when the on-site high pier bearing platform does not meet the requirement of building a platform, a steel cantilever frame mode is used as a foundation; when the high pier is in the river or has water, the steel bracket mode is adopted as the foundation.
The construction process of the present invention will be described with reference to the accompanying drawings.
The invention provides a method for constructing a constant-section high pier by using an electric bridge scaffold platform, which comprises the following specific steps of:
a. selecting a base form according to the scheme and the field base condition, as shown in FIGS. 2 a-2 f; fixing the base of the electric bridge type scaffold platform on the surface of a foundation to ensure that the electric bridge type scaffold platform does not displace; the gradienter controls the installation levelness of the base;
b. the method comprises the following steps of pre-embedding a steel plate (figure 3-a) or pre-embedding a creeping cone (figures 3-b and 3-c) in advance before pouring concrete on the high pier, wherein the parameter requirements of the pre-embedding steel plate are that the model is Q235, the size is not less than 300X150X10mm, 4 anchor bars are welded with an anchor plate and are not lower than the quality requirements of a secondary welding seam, the surface of the pre-embedding steel plate is embedded into the concrete surface by 2-3cm, the distance between the anchor bars and the two ends of the anchor plate is 3d and 45mm, 4 phi 16 steel bars with the length of 40cm and the ends bent by 20cm are welded on the anchor plate and are connected with a main high pier rib, the parameter requirements of the pre-embedding creeping cone are that the specification of a high-strength bolt is not less than M16 × 140mm (the tensile force is not less than 12.5KN), the positioning steel plate of the pre-embedding creeping cone is made of a thin steel;
c. in the process of circularly installing the standard section upright post, the verticality of the upright post installation is adjusted through a theodolite or two magnetic line pendants, the verticality is less than or equal to 3/1000, and the vertical deviation cannot exceed 50 mm; the attachment rods and the upright columns are alternately installed, the included angle of the attachment rods is controlled within the range of 30-55 degrees, the length of the attachment rods is determined according to the distance between the platform and the high pier, and the positions of the upper attachment rod and the lower attachment rod cannot exceed the enterprise standard of 600 cm;
d. according to the planar design of a drawing, a 10cm gap is reserved at the butt joint of a lower hanging platform at the bottom layer of a creeping formwork and a platform channel of an electric bridge type scaffold, an electric interlocking safety door is installed in the opening end part of the lower hanging platform by 10cm in an adduction manner, the safety door and the platform of the electric bridge type scaffold form electric interlocking, and the safety door cannot be electrified and operated when not closed; the electric lifting platform protective guard is 150cm high, a punching net with the thickness of 0.07cm and 1cm of holes is adopted for peripheral protection, the wind resistance can be effectively reduced, and the electric bridge type scaffold platform is provided with a telescopic safety door;
e. the mounting height of the electric bridge type scaffold platform upright column is gradually increased along with the construction progress of the high pier; standard width is 1.35 meters; the length of the single machine position is less than 9.8 meters, the attachment rods are installed successively along with the creeping formwork construction, the maximum distance between the attachment rods does not exceed 6 meters, and the application technology of the electric bridge type scaffold platform on the high pier meets the corresponding requirements in the enterprise standard Q/CP XMH 0003 + 2017; the two butt-joint side surfaces of the electric bridge type scaffold platform are provided with telescopic safety doors;
f. after the basic construction and the outer surface modification of the high pier are completed, the electric bridge type scaffold platform starts to be dismantled, and the upright columns are dismantled section by section; the specific operation steps are as follows: lifting the electric bridge type scaffold platform to the top, alternately removing the standard section upright posts and the attachment rods in sequence, and placing the removed standard section upright posts 4 on the platform (the maximum load borne by the platform is not exceeded in the mounting and removing processes); and repeating the operations until the standard section upright post, the platform assembly, the driving unit and the control unit are removed. A safety warning area is required to be arranged in a corresponding range on the ground in the mounting and dismounting construction process.
The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention and should not be taken as limiting the scope of the present invention, which is defined by the appended claims.
Claims (9)
1. Electric bridge type scaffold platform is used for system of high mound construction of uniform cross-section, its characterized in that: the system consists of an electric bridge type scaffold platform, a high pier, a creeping formwork, a part connected with the high pier and a part butted with the creeping formwork; wherein the content of the first and second substances,
the electric bridge type scaffold platform consists of a foundation (1), a driving device (2), a platform assembly (3), a standard section upright post (4) and a control unit (5); the part connected with the high pier consists of an embedded part (6) embedded in the high pier in advance, an attachment support (7), an attachment rod (8) and an attachment frame (9); the part of the butt joint part with the creeping formwork is used for realizing the butt joint of a channel by an electric bridge type scaffold platform and a lower hanging platform at the bottom layer of the creeping formwork; the creeping formwork consists of a creeping formwork upper platform, a creeping formwork main platform and a creeping formwork lower platform;
the embedded part (6) of the part connected with the high pier is arranged at the pre-installation position of the attachment rod (8) before the concrete is poured on the pier body; the attachment support (7) is welded on the embedded part (6), and the attachment rod (8) is connected with the attachment support (7) through a bolt; an attachment frame (9) is arranged on a standard section upright post (4) of the electric bridge type scaffold platform, and an attachment rod (8) and the attachment frame (9) are fixed by a right-angle fastener;
the foundation (1) is based on a field high pier bearing platform; when the on-site high pier bearing platform does not meet the requirement of building a platform, a steel cantilever frame mode is used as a foundation; when the high pier is in the river or has water, the steel bracket mode is adopted as the foundation.
2. The system for the construction of equal section high piers for electric bridge scaffold platform of claim 1, characterized in that: the part of the creeping formwork butt joint is that a gap is reserved on a lower hanging platform at the bottom layer of the creeping formwork, and an electric interlocking safety door is arranged on the side surface of the gap; and (3) installing the standard section upright post (4) of the electric bridge type scaffold platform into the platform hung under the bottom layer of the creeping formwork, so that the electric bridge type scaffold platform and the platform hung under the creeping formwork realize plane butt joint.
3. The system for constructing the equal-section high piers by using the electric bridge scaffold platform according to claim 2, wherein the gap and the electric interlocking safety door are specifically arranged as follows: a10 cm gap is reserved at the butt joint of a lower lifting platform and an electric bridge type scaffold platform at the bottom layer of the creeping formwork, an electric interlocking safety door is installed in the opening end of the lower lifting platform in an inward-retracting mode by 10cm, the electric interlocking safety door and the electric bridge type scaffold platform form electric interlocking, and the safety door cannot be powered on to operate when not closed.
4. The system for the construction of equal section high piers for electric bridge scaffold platform of claim 1, characterized in that: the embedded part (6) is an embedded steel plate and/or an embedded creeping cone.
5. The system for the construction of equal section high piers for electric bridge scaffold platform of claim 1, characterized in that: the included angle of the attaching rods (8) is controlled to be 30-55 degrees, the length is not more than 200cm, and the distance is not more than 600 cm.
6. The system for constructing the equal-section high piers by using the electric bridge scaffold platform as claimed in claim 4 is characterized in that the specification of the high-strength bolt in the embedded climbing cone is not less than M16 × 140mm, and the positioning steel plate in the embedded climbing cone is a thin steel plate.
7. The system for the construction of equal section high piers for electric bridge scaffold platform of claim 1, characterized in that: when the steel cantilever frame mode is taken as a foundation, the steel section with the length not less than 200x200h is selected as a support.
8. A system for the construction of equal section high piers using electric bridge scaffold platforms according to claim 2 or 3, characterized in that: the electric bridge type scaffold platform guard rails are arranged on the electric bridge type scaffold platform, the electric bridge type scaffold platform guard rails are 150cm high, and a punching net with the thickness of 0.07cm and the hole of 1cm is adopted for peripheral protection.
9. A method of using the system of any preceding claim, wherein the method is performed using a field installation, the steps of:
a. on-site reconnaissance of construction conditions → drawing design → writing of special project → expert demonstration → convergence of special project;
b. installing and positioning at a construction site: determining the installation position of the electric bridge type scaffold platform according to the scheme and the site basic conditions;
c. installing an electric bridge type scaffold platform in the following sequence: installing a driving unit → installing a standard section upright post → installing a platform assembly → installing a control unit and electrical equipment → installing a starting platform and connecting the upright post in parallel, synchronously installing an attachment rod and the standard section upright post → circularly installing the attachment rod and the standard section upright post in a lower hanging platform of the creeping formwork; after the platform is installed, carrying out load test on the platform of the electric bridge type scaffold and checking and accepting, wherein the platform can be used after being qualified;
d. positioning and pre-embedding the pre-embedded part;
e. after climbing the high-pier creeping formwork, welding the attachment support on the embedded part, then installing the attachment rod, connecting the attachment rod with the attachment support through a bolt, and then fixing the attachment rod and the attachment frame through a right-angle fastener;
f. the standard section upright post of the electric bridge type scaffold platform is arranged in the lower hanging platform of the high pier creeping formwork and rises to the same height with the lower hanging platform of the high pier creeping formwork, so that plane butt joint is realized.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010241737.8A CN111395185A (en) | 2020-03-31 | 2020-03-31 | System and method for applying electric bridge type scaffold platform to construction of equal-section high pier |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010241737.8A CN111395185A (en) | 2020-03-31 | 2020-03-31 | System and method for applying electric bridge type scaffold platform to construction of equal-section high pier |
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Application publication date: 20200710 |