CN113944108B - Supporting device for bridge tower construction and construction method using supporting device - Google Patents
Supporting device for bridge tower construction and construction method using supporting device Download PDFInfo
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- CN113944108B CN113944108B CN202111273784.1A CN202111273784A CN113944108B CN 113944108 B CN113944108 B CN 113944108B CN 202111273784 A CN202111273784 A CN 202111273784A CN 113944108 B CN113944108 B CN 113944108B
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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
- E01D19/14—Towers; Anchors ; Connection of cables to bridge parts; Saddle supports
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Abstract
The invention discloses a supporting device for bridge tower construction and a construction method using the same, comprising a bridge tower, wherein the bridge tower is connected with a bracket support, a disc buckle support is connected above the bracket support, the disc buckle support comprises a plurality of disc buckle cross bars and disc buckle vertical bars, the disc buckle support is arranged on the outer side of the bridge tower in a surrounding manner, and a gap for a stay cable of the bridge tower to pass through is reserved on the disc buckle support; the lower part of the bracket support is connected with a hanging basket through a driving mechanism, the hanging basket comprises fixed supports symmetrically arranged at two sides of the bridge tower, two ends of the fixed supports are connected with sliding supports in a sliding manner, and the fixed supports and the sliding supports are mutually matched so as to encircle the outer side of the bridge tower; the fixed support and the sliding support are connected with a locking mechanism. The device can meet the construction of various building structures, not only can solve the restriction of stay ropes, but also can form a unified whole by means of the high pier and the bridge tower, improves the safety of the hanging basket, reduces the influence of external factors, and facilitates the whole construction work of the outer surface of the bridge tower.
Description
Technical Field
The invention relates to the technical field of novel building construction, in particular to a supporting device for bridge tower construction and a construction method using the supporting device.
Background
At present, the suspension bridge and the cable-stayed bridge occupy very important positions in the ultra-large span bridge, and compared with other bridge shapes, the suspension bridge and the cable-stayed bridge have the greatest advantages that the mechanical properties of novel materials can be fully utilized, and the single span of the bridge is made to be very large, so that the bridges with the same length only occupy little ground area and less building materials; under the premise of meeting the requirements of bridge safety and traffic design, the large-span suspension bridge and the cable-stayed bridge can better meet the requirements of navigation under the bridge, and have the advantages of simple bridge lines, attractive bridge shape and the like.
However, in actual construction, due to the limitation of the shape of the bridge tower, particularly the bridge tower with the stay cables, the stay cables are densely distributed, and in the process of coating a newly built bridge tower and maintaining an old bridge tower, the stay cables seriously influence the normal construction efficiency, so that a plurality of inconveniences are brought to the normal construction. The hanging basket is constructed in a hanging basket mode and the like, so that the hanging basket is easily influenced by external factors, and meanwhile, the normally lifting operation of the hanging basket can be seriously influenced by densely distributed stay ropes.
Meanwhile, the construction technology of the outer wall construction hanging basket at present is simple in structural form and is easily influenced by external factors such as wind, so that constructors and the construction hanging basket are in dangerous shapes. Meanwhile, in actual construction, the shape design of the bridge tower and the high pier is diversified nowadays, particularly the bridge tower is in a variable cross section mode, while the traditional construction hanging basket is in a vertical downward state under the action of gravity and can only be directly upwards and downwards, so that the construction requirements cannot be met, and the construction of various building structures cannot be met.
Disclosure of Invention
In order to solve the problems in the prior art, a supporting device for bridge tower construction and a construction method using the supporting device are provided.
The technical scheme adopted for solving the technical problems is as follows:
the invention provides a supporting device for bridge tower construction, which comprises a bridge tower, wherein the bridge tower is connected with a bracket support, a disc buckle support is connected above the bracket support, the disc buckle support comprises a plurality of disc buckle cross bars and disc buckle vertical bars, the disc buckle support is arranged on the outer side of the bridge tower in a surrounding manner, and a gap for a stay cable of the bridge tower to pass through is reserved in the disc buckle support; the lower part of the bracket support is connected with a hanging basket through a driving mechanism, the hanging basket comprises fixed supports symmetrically arranged on two sides of the bridge tower, two ends of the fixed supports are connected with sliding supports in a sliding manner, and the fixed supports and the sliding supports are mutually matched so as to encircle the outer side of the bridge tower; the fixed support and the sliding support are connected with a locking mechanism, and the locking mechanism is used for realizing the relative locking of the fixed support and the sliding support.
Preferably, the locking mechanism comprises two telescopic brackets which are symmetrically arranged, and one end of the fixed bracket and one end of the sliding bracket are both arranged between the two telescopic brackets in a sliding way; the first screw penetrates through the telescopic frame and is movably connected with the telescopic frame, a first nut is connected with the first screw in a threaded mode, and the first nut is arranged on the outer side of the telescopic frame.
Preferably, the two ends of the expansion bracket are inclined planes, and when the first nut rotates to realize the relative locking of the fixed bracket and the sliding bracket, the fixed bracket and the sliding bracket are both contacted with the inclined planes.
Preferably, the sliding support is fixedly connected with a fixing frame, the fixing frame is in threaded connection with a second screw rod, one end of the second screw rod is connected with a universal wheel which is in contact with the bridge tower, and the other end of the second screw rod is in threaded connection with a second nut.
Preferably, the sliding support outside is connected with transparent PVC board, the fixed bolster is connected with the bamboo offset plate, the hanging flower basket top is connected with the ceiling, transparent PVC board, bamboo offset plate and ceiling mutually support, thereby make the hanging flower basket forms airtight construction space.
Preferably, the device further comprises a disc buckle inclined rod arranged in an inclined direction, one end of the disc buckle inclined rod is connected with the disc buckle cross rod, the other end of the disc buckle inclined rod is connected with the disc buckle cross rod and/or the disc buckle vertical rod, and the disc buckle inclined rod is connected end to end and is arranged in a W shape.
Preferably, the cross rod of the disc buckle is connected with the vertical rod of the disc buckle end to end, so that the disc buckle bracket forms a cuboid structure; the disc buckle is characterized in that the disc buckle vertical rod fixing sleeve is provided with a connecting disc, the connecting disc is provided with a plurality of positioning holes, two ends of the disc buckle transverse rod are provided with transverse rod through holes, and the transverse rod through holes and the positioning holes are internally provided with bolts in a penetrating manner.
The invention also provides a bridge tower construction method, which adopts the supporting device for bridge tower construction and comprises the following steps:
s1: firstly, installing a bracket support at the position of a cross beam, calculating the required bearing capacity of the bracket according to the erection height, the construction load and the wind load of the bracket support, and then installing the bracket support on the bracket support, wherein a stay cable of an upper tower column passes through a gap reserved by the bracket support, so that the construction work of the outer surface of the upper tower column is carried out on the bracket support;
s2: dismantling a disc buckle support, installing a suspension type construction platform outside a beam, hoisting the suspension type construction platform onto the beam for construction, installing a transparent PVC plate for enclosure protection in the construction process, and installing an air filtering device so as to perform construction work on the outer surface of the beam;
s3: then, a hanging basket is arranged below the bracket support through a driving mechanism, the hanging basket is arranged below the middle tower column, the driving mechanism drives the hanging basket to ascend along with the construction work of the outer surface of the middle tower column, the locking mechanism is released, the sliding support slides towards the direction close to the bridge tower, and the relative locking of the sliding support and the fixed support is realized through the locking mechanism, so that the construction work of the outer surface of the middle tower column is completed;
s4: the tray buckle support is installed on the ground, so that the tray buckle support is arranged on the outer side of the lower tower column in a surrounding mode, and the construction work of the outer surface of the lower tower column is performed.
Preferably, in the step S1, a protection rod is installed at the outer side of the disc buckle support, a safety protection net is laid, and a PVC enclosure is installed on the disc buckle cross rod.
Preferably, in the step S3, an air outlet is provided at the ceiling, and a sand outlet for recovering sand is provided at one side of the basket.
Compared with the prior art, the invention has the beneficial effects that:
1. the bracket support is used for supporting the whole hanging basket, the hanging basket can be driven to lift by the electric hoist, and the width of the hanging basket can be adjusted by the locking mechanism, so that the bracket support is suitable for construction work of bridge towers with variable cross sections, and can meet the construction requirements of various building mechanisms, thereby solving the construction problem, having reasonable structure, ingenious design and wider application range and having extremely high popularization value.
2. The invention is provided with the closed integral hanging basket, and can form a unified whole by means of the high pier and the bridge tower, thereby improving the safety of the hanging basket and reducing the influence of external factors, so that the integral stability of the hanging basket and the safety coefficient can be improved.
3. According to the locking mechanism provided by the invention, through unscrewing the nuts, the relative sliding of the two telescopic frames which are oppositely arranged can be realized, the inclined planes at the two ends of the telescopic frames provide enough movable space for the fixed frame and the sliding frame, after screwing the nuts, the locking work of the telescopic frames can be realized, at the moment, the two ends of the fixed frame and the sliding frame are contacted with the inclined planes, the locking mechanism is prevented from shaking, the integral stability is effectively improved, the operation is convenient, the integral safety of the hanging basket is greatly improved, the sliding frame and the fixed frame are conveniently moved relatively, and the integral stability is better.
4. The bracket support is used for supporting the whole bracket of the bracket, the bracket is convenient to detach, the bracket can be reasonably designed according to the distribution condition of the stay cables, so that the planning work of the bracket is completed, the stay cables penetrate through the bracket, the bracket of the tower bridge is conveniently erected by the stay cables, the construction of the outer surface of the tower bridge is convenient for workers, the operation is simple, the bracket is convenient to detach, the influence caused by the stay cables can be avoided, the bracket is matched with the bracket support, the supporting effect is good, and the popularization value is extremely high.
5. According to the invention, the disassembly work of the disc buckle cross rod and the disc buckle vertical rod is realized by the way of matching the arranged connecting disc with the bolt, and the bolt has better matching effect due to the shape characteristics, so that the disc buckle cross rod and the disc buckle vertical rod are prevented from loosening, the structure is reasonable, the design is ingenious, the disc buckle bracket is convenient to disassemble and work, and meanwhile, the whole disc buckle bracket is more reliable and has higher safety coefficient.
Drawings
The foregoing and/or additional aspects and advantages of the invention will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of the overall construction of the present invention;
FIG. 2 is an overall front view of the present invention;
FIG. 3 is a schematic view of a portion of a buckle holder according to the present invention;
FIG. 4 is a side view of a basket part (in operation) according to the present invention;
FIG. 5 is a schematic view of the distribution of the buckle rail in the present invention;
FIG. 6 is a schematic diagram of the distribution of the diagonal rods of the buckle in the present invention;
FIG. 7 is a schematic view of the distribution of buttress support bars in accordance with the present invention;
FIG. 8 is a top view of a portion of the structure of the buckle support of the present invention;
FIG. 9 is a front view of a portion of a buckle support according to the present invention;
FIG. 10 is an enlarged view of the portion A of FIG. 9;
FIG. 11 is a top view of a bracket structure of the present invention;
FIG. 12 is a front view of a bracket structure of the present invention;
FIG. 13 is a schematic view of the rib distribution in the present invention;
FIG. 14 is a top view of a basket structure according to the present invention;
FIG. 15 is a top view of a basket structure II of the present invention;
FIG. 16 is a top view of a basket structure according to the present invention;
FIG. 17 is a schematic view of a portion of the telescoping rack of FIG. 14;
FIG. 18 is a schematic view of a portion of the telescoping rack of FIG. 14 (in an operative condition);
FIG. 19 is a schematic view of a portion of the caster of FIG. 14;
FIG. 20 is a schematic view of a basket according to the present invention;
FIG. 21 is a schematic view of the rubber dam portion of FIG. 20;
fig. 22 is an enlarged view of a basket part structure in the present invention.
Reference numerals illustrate:
1, a bridge tower; 2, a tray buckle bracket; a 21-plate buckle cross bar; 22, buckling a vertical rod; 23 disc buckle diagonal rods; 24, supporting a wall; 25 pins; 26 connection pads; 261 positioning holes; 3 bracket; 31 corbel connecting rods; a 32 bracket support plate; 33 reinforcing ribs; 4, fixing a bracket; 5 sliding brackets; 6, a telescopic frame; 61 inclined planes; 62 a first screw; 63 a first nut; 7 universal wheels; 71 a second screw; a second nut 72; 73 fixing frames; 8, an electric hoist; 9 hanging basket construction platform; 91 ceiling; 92 transparent PVC plate; 93 bamboo plywood; 94 rubber baffles; 95 loose-leaf bearings.
Detailed Description
Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to like or similar elements or elements having like or similar functions throughout. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the invention.
As shown in fig. 1-22, this embodiment provides a support device for bridge tower construction, including bridge tower 1, bridge tower 1 is connected with bracket support 3, and bracket support 3 top is connected with a set and detains support 2, and a set detains support 2 and detains montant 22 including a plurality of set knot horizontal pole 21 and a set, and set detains support 2 and encircle the outside that sets up at bridge tower 1, and set detains support 2 and leave the clearance that the stay cable that supplies bridge tower 1 passed.
The tray buckling support 2 is convenient to install and disassemble, the tray buckling support is simple in structure and high in bearing capacity, reasonable design can be achieved according to the distribution condition of the stay cables, planning work of the tray buckling support 2 is achieved, the stay cables penetrate through the tray buckling support 2, the support of the stay cables densely distributed bridge tower 1 is further erected, construction of the outer surface of the bridge tower is facilitated for workers, the operation is simple, the support is convenient to disassemble, influence caused by the stay cables can be avoided, meanwhile, the support is matched with the bracket support, good supporting effect is achieved, and extremely high popularization value is achieved.
The plate buckle cross rod 21 is fixedly connected with a buttress support rod 24, the buttress support rod 24 is contacted with the surface of the bridge tower 1, the bridge tower is stable and safe, a protective railing is installed at the outer side, a safety protection net is paved, safety protection is carried out, a PVC fence is adopted as a construction operation layer, and the construction requirement is met.
The disc buckle cross bar 21 and the disc buckle vertical bar 22 are connected end to end so that the disc buckle bracket 2 forms a cuboid structure.
The vertical rod 22 of the plate buckle is fixedly sleeved with a connecting plate 26, and the connecting plate 26 is provided with a plurality of positioning holes 261. The positioning holes 261 can be formed in a plurality of positions according to actual needs, so that the connecting disc 26 can be conveniently connected with the disc buckle cross bars 21 in different directions.
Cross rod through holes are formed in the two ends of the disc buckle cross rod 21, and bolts 25 are arranged in the cross rod through holes and the positioning holes 261 in a penetrating mode.
The pin 25 includes a pin upper end and a pin lower end, and the pin upper end and the pin lower end cooperate with each other to form an included angle, and the positioning hole 261 includes a hole inlet and a hole outlet, and the included angle is disposed at the hole outlet.
Because bolt 25 self shape characteristics, therefore the cooperation effect is better, prevents that the dish from detaining the horizontal pole 21 and detaining the montant 22 emergence of condition such as taking place not hard up, rational in infrastructure, design benefit, when solving dish and detaining support 2 and conveniently dismantling work, can make the dish again detain support 2 whole more reliable, factor of safety is higher.
The device further comprises a disc buckle inclined rod 23 arranged in an inclined direction, one end of the disc buckle inclined rod 23 is connected with the disc buckle cross rod 21, and the other end of the disc buckle inclined rod 23 is connected with the disc buckle cross rod 21 and/or the disc buckle vertical rod 22.
The connection part of the disc buckle inclined rod 23, the disc buckle cross rod 21 and the disc buckle vertical rod 22 is connected with the connection disc 26, the connection disc 26 is fixedly connected with the disc buckle cross rod 21, the connection disc 26 is rotationally connected with the disc buckle inclined rod 23, and both sides of one connection disc 26 can be connected with the disc buckle inclined rod 23, so that the disc buckle inclined rod 23 is connected end to end and is in W-shaped arrangement.
Meanwhile, the disc buckle inclined rod 23 can reasonably adjust the distribution position according to the distribution condition of the inclined inhaul cable.
The bracket 3 comprises a plurality of bracket connecting rods 31, and the bracket connecting rods 31 are connected end to end so that the bracket 3 forms a cuboid structure.
The bracket support 3 is connected with the bridge tower 1 through a bracket support plate 32, and the bracket support plate 32 is arranged in a direction inclined to the direction. The bracket support plate 32, the bracket support 3 and the bridge tower 1 are mutually matched, so that a triangular structure is formed, and the overall stability of the bracket support 3 is improved.
The bracket support 3 is provided with stiffening rib 33 with the bridge tower 1 junction, prevents that the bracket support 3 from tearing with the bridge tower 1 junction condition such as taking place.
The bracket 3 can be welded by adopting a reinforcement anchoring mode, so that the welding quality is improved.
The bracket 3 below is connected with the hanging flower basket through actuating mechanism, and actuating mechanism is electric block 8, can drive the whole vertical direction of hanging flower basket through electric block 8 and remove.
Considering stability during lifting, a plurality of hanging points of the hanging basket are synchronously controlled by a controller, and the 4-surface hanging basket is synchronously constructed during lowering and lifting, and the corresponding speed is controlled or the lifting is carried out together after other synchronization when the inclination is asynchronous.
The hanging basket comprises fixed brackets 4 symmetrically arranged at two sides of the bridge tower 1, sliding brackets 5 are connected to two ends of the fixed brackets 4 in a sliding manner, and the fixed brackets 4 and the sliding brackets 5 are mutually matched so as to encircle the outer side of the bridge tower 1; the fixed support 4 and the sliding support 5 are connected with a locking mechanism, and the locking mechanism is used for realizing relative locking of the fixed support 4 and the sliding support 5.
The locking mechanism can realize the adjustment work of the width of the hanging basket, thereby being suitable for the construction work of bridge towers with variable cross sections, being capable of meeting the construction of various building mechanisms, solving the construction problem, having reasonable structure, ingenious design, wider application range and extremely high popularization value.
The locking mechanism comprises two telescopic brackets 6 which are symmetrically arranged, and one end of the fixed bracket 4 and one end of the sliding bracket 5 are both arranged between the two telescopic brackets 6 in a sliding way.
The first screw rod 62 runs through the expansion bracket 6 and is movably connected with the expansion bracket 6, the first screw rod 62 is in threaded connection with a first nut 63, and the first nut 63 is arranged outside the expansion bracket 6.
The first screw 62 is screwed with the expansion bracket 6.
The two ends of the telescopic frame 6 are inclined planes 61, and when the first nut 63 rotates to realize the relative locking of the fixed bracket 4 and the sliding bracket 5, the fixed bracket 4 and the sliding bracket 5 are contacted with the inclined planes 61.
By unscrewing the first nut 63, the two telescopic frames 6 which are oppositely arranged can slide relatively, the inclined planes 61 at the two ends of the telescopic frames 6 provide enough movable space for the fixed support 4 and the sliding support 5, and after the first nut 63 is screwed, the locking work of the telescopic frames 6 can be realized.
At this time, the two ends of the fixed support 4 and the sliding support 5 are in contact with the inclined plane 61, so that the locking mechanism is prevented from shaking, the overall stability is effectively improved, the operation is convenient, the overall safety of the hanging basket is greatly improved, the sliding support 5 and the fixed support 4 are convenient to move relatively, and the overall stability is better.
The sliding support 5 is fixedly connected with a fixing frame 73, the fixing frame 73 is in threaded connection with a second screw rod 71, one end of the second screw rod 71 is connected with a universal wheel 7 which is in contact with the bridge tower 1, and the other end of the second screw rod 71 is in threaded connection with a second nut 72.
The universal wheel 7 is a soft wheel, the distance between the hanging basket and the bridge tower 1 can be adjusted through the universal wheel 7, the soft pulley is attached to the bridge tower 1, and the bridge tower 1 can not be damaged when the supporting effect is achieved.
The hanging flower basket still includes hanging flower basket construction platform 9, and the sliding support 5 outside is connected with transparent PVC board 92, and fixed bolster 4 is connected with bamboo offset plate 93, and the hanging flower basket top is connected with ceiling 91.
The transparent PVC plate 92, the bamboo glue plate 93, the ceiling 91 and the hanging basket construction platform 9 are mutually matched, so that the hanging basket forms a closed construction space.
One side of the bamboo plywood 93 is rotatably connected with a rubber baffle 94 through a loose-leaf bearing 95, and the rubber baffle 94 is erected on the outer side of the bridge tower 1.
The closed integral hanging basket can form a unified whole by means of the high pier and the bridge tower, so that the safety of the hanging basket is improved, the influence of external factors on the hanging basket is reduced, and the integral stability and the safety coefficient of the hanging basket can be improved.
The construction hanging basket can be changed into various structural forms such as annular and diamond according to the structural forms of bridge piers and bridge towers.
The working process comprises the following steps: as shown in fig. 4, after the processing of the hanging basket is completed, the hanging basket is spliced and assembled at the height of the bridge tower 1 (1) to form a whole, at this time, the hanging basket is positioned at the wide section of the bridge tower 1, each member of the hanging basket is hoisted in place, and after the steel wire rope and the safety rope are hung in place, the second screw 71 is firstly adjusted, so that the distance between the hanging basket and the bridge tower 1 is adjusted through the universal wheel 7, and then the hanging basket is fixed by using the locking mechanism of the hanging basket to form a closed integral structure.
When the hanging basket ascends and runs to the narrow section (2) of the bridge tower 1, the section change causes the overlarge distance between the construction hanging basket and the bridge tower 1, so that the construction is not facilitated, the construction hanging basket needs to be adjusted, and the concrete flow of adjustment is as follows:
1. the first nut 63 on one side in the tightened state is loosened, and the sliding support 5 can relatively move with respect to the whole basket structure.
2. The sliding support 5 is brought close to the pylon 1 by means of a chain block or by manual adjustment, and the distance between the basket and the pylon 1 is adjusted by means of the second screw 71 and the universal wheel 7.
3. After the distance between the hanging basket and the bridge tower is adjusted in place, the first nut 63 is screwed down, and at the moment, the hanging basket forms a stable structure again, so that construction operation can be performed.
The bridge tower construction method is characterized in that the supporting device for bridge tower construction is adopted, the bridge tower 1 sequentially comprises an upper tower column, a cross beam, a middle tower column and a lower tower column from top to bottom, and when the outer surface of the bridge tower is constructed, the supporting device comprises the following steps:
s1: firstly, installing a bracket support 3 at a beam position, calculating the bearing capacity required by the bracket according to the erection height, the construction load and the wind load of the bracket support, and then installing a bracket support 2 on the bracket support 3, wherein a stay cable of an upper tower column passes through a gap reserved by the bracket support 2, so that the construction work of the outer surface of the upper tower column is carried out on the bracket support 2;
s2: dismantling a disc buckle support 2, installing a suspension type construction platform outside a beam, hoisting the suspension type construction platform onto the beam for construction, installing a transparent PVC plate for enclosure protection in the construction process, and installing an air filtering device so as to perform construction work on the outer surface of the beam;
s3: then, a hanging basket is arranged below the bracket support 3 through a driving mechanism, the hanging basket is arranged below the middle tower column, the driving mechanism drives the hanging basket to ascend along with the construction work of the outer surface of the middle tower column, the locking mechanism is released, the sliding support 5 slides towards the direction close to the bridge tower 1, and the relative locking of the sliding support 5 and the fixed support 4 is realized through the locking mechanism, so that the construction work of the outer surface of the middle tower column is completed;
s4: the tray buckle support 2 is installed on the ground, so that the tray buckle support 2 is arranged on the outer side of the lower tower column in a surrounding mode, and the construction work of the outer surface of the lower tower column is performed.
In step S1, a protective rod is installed and a safety protection net is laid on the outer side of the disc buckle support 2, and a PVC enclosure is installed on the disc buckle cross bar 21.
In step S3, an air outlet is provided in the ceiling 91, and a sand outlet for recovering sand is provided in one side of the basket.
The air outlet is used for normal ventilation work in the closed construction space of the hanging basket. Meanwhile, constructors wear protective clothing, the protective clothing is similar to diving suits, and a special air supply pipe supplies air to the heads for breathing of the constructors.
In order to meet construction requirements, the hanging basket construction platform 9 is designed as a construction platform, personnel move along with the hanging basket for construction, transparent PVC plates 92 are enclosed around the hanging basket for ensuring dust suppression and green construction requirements, and a ceiling 91 is arranged at the top of the hanging basket, so that the outdoor green construction problem can be effectively solved, and the construction environment influence is reduced.
By adopting the hanging basket construction platform 9 with the ceiling 91, sand and paint splash pollution and dust pollution during sand blasting and rust removal can be avoided.
The invention adopts the tray buckling support 2 to construct in combination with the hanging basket method, and adopts the tray buckling support 2 to construct in the upper tower column area densely covered by the stay cables, so that the restriction of the stay cables can be effectively solved, the bracket support 3 is arranged on the bridge tower 1 as a support platform, the assembled tray buckling support 2 is erected on the bracket platform, the tray buckling support 2 is convenient to install and disassemble, the modulus matching mode is multiple, the conflict of the stay cables can be avoided through reasonable design, and the construction of the outer surface of the bridge tower in the stay cable area can be satisfied.
The enclosure type hanging basket which is closed into a ring is adopted in the lower tower column area without the inhaul cable, the periphery of the tower column can be enclosed to form an integral construction platform, and the defect that the independent construction hanging basket is easily influenced by the outside, such as wind power influence, is perfectly overcome.
Bridge tower coating is performed in four parts: and (3) carrying out corrosion-resistant coating construction on the upper tower column, the cross beam, the middle tower column and the lower tower column from top to bottom.
The bracket support 3 is erected to serve as a construction platform in the construction of the upper tower column, the bracket support 3 is installed at the position of the cross beam, the required bearing capacity of the bracket support 3 is calculated according to the erection height, the construction load and the wind load of the bracket support 2, and the bracket is designed to be an I25a I-shaped steel bracket, so that the construction requirement is met.
The upper tower column is vertical and uniform in section, the tray buckle support 2 is convenient to assemble and disassemble, the structure is simple, the bearing capacity is high, the buttress support rod 24 is installed in the process of installing, the safety is stable and safe, the protective railing is installed in the outer side, the safety protection net is paved, the safety protection is carried out, the construction operation layer adopts PVC for enclosing and blocking, and the construction requirement is met.
Bridge tower steel crossbeam is at outside design suspension type construction platform, hoist to the crossbeam and construct, installs transparent PVC board in the work progress and encloses fender protection to air filter equipment such as air exhauster is installed. The suspension type construction platform adopts a conventional bracket.
The tower column in the main bridge is in an inclined uniform section form, so as to meet construction requirements, a hanging basket is designed as a construction platform, personnel can move along with the hanging basket for construction, in order to ensure suppression of dust emission and green construction requirements, transparent PVC plates are enclosed around the hanging basket, and a ceiling is arranged at the top of the hanging basket, so that outdoor green construction problems can be effectively solved, and construction environment influence is reduced.
The lower tower column is constructed by adopting a plate buckle bracket 2 to be erected on the ground, adopting the same arrangement mode with the overhanging bracket, and being directly erected on a bearing platform.
The invention innovates a safe, simple and environment-friendly construction method for the stay cable bridge tower anti-corrosion coating construction, thereby improving the construction efficiency, saving the material cost and improving the benefit.
While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a support arrangement for bridge tower construction, includes bridge tower (1), its characterized in that, bridge tower (1) is connected with bracket support (3), bracket support (2) are detained to the dish is connected with to bracket support (3) top, bracket support (2) are detained to dish include a plurality of dish and detain horizontal pole (21) and dish and detain montant (22), bracket support (2) are detained to the dish encircles and are set up in the outside of bridge tower (1), the clearance that the stay cable of support (2) is detained to the dish is left and is supplied bridge tower (1) to pass; the lower part of the bracket support (3) is connected with a hanging basket through a driving mechanism, the hanging basket comprises fixed supports (4) symmetrically arranged on two sides of the bridge tower (1), two ends of the fixed supports (4) are connected with sliding supports (5) in a sliding manner, and the fixed supports (4) and the sliding supports (5) are mutually matched so as to encircle the outer side of the bridge tower (1); the fixed support (4) and the sliding support (5) are connected with a locking mechanism, and the locking mechanism is used for realizing relative locking of the fixed support (4) and the sliding support (5).
2. The support device for bridge tower construction according to claim 1, wherein the locking mechanism comprises two symmetrically arranged telescopic brackets (6), and one end of the fixed bracket (4) and one end of the sliding bracket (5) are both arranged between the two telescopic brackets (6) in a sliding manner; the first screw rod (62) run through expansion bracket (6) and with expansion bracket (6) swing joint, first screw rod (62) threaded connection has first nut (63), first nut (63) set up in expansion bracket (6) outside.
3. The support device for bridge tower construction according to claim 2, wherein the two ends of the expansion bracket (6) are inclined planes (61), and when the first nut (63) rotates to realize the relative locking of the fixed bracket (4) and the sliding bracket (5), the fixed bracket (4) and the sliding bracket (5) are both contacted with the inclined planes (61).
4. The support device for bridge tower construction according to claim 1, wherein the sliding bracket (5) is fixedly connected with a fixing frame (73), the fixing frame (73) is in threaded connection with a second screw rod (71), one end of the second screw rod (71) is connected with a universal wheel (7) which is in contact with the bridge tower (1), and the other end of the second screw rod (71) is in threaded connection with a second nut (72).
5. The support device for bridge tower construction according to claim 1, wherein a transparent PVC plate (92) is connected to the outside of the sliding bracket (5), a bamboo plywood (93) is connected to the fixing bracket (4), a ceiling (91) is connected to the upper side of the hanging basket, and the transparent PVC plate (92), the bamboo plywood (93) and the ceiling (91) are mutually matched, so that the hanging basket forms a closed construction space.
6. The support device for bridge tower construction according to claim 1, further comprising a disc buckling inclined rod (23) arranged in an inclined direction, wherein one end of the disc buckling inclined rod (23) is connected with the disc buckling cross rod (21), the other end of the disc buckling inclined rod (23) is connected with the disc buckling cross rod (21) and/or the disc buckling vertical rod (22), and the disc buckling inclined rod (23) is connected end to end and is arranged in a W shape.
7. The support device for bridge tower construction according to claim 1, wherein the disc buckle cross bar (21) and the disc buckle vertical bar (22) are connected end to end so that the disc buckle bracket (2) forms a cuboid structure; the novel connecting plate is characterized in that the connecting plate (26) is fixedly sleeved on the vertical plate (22), a plurality of positioning holes (261) are formed in the connecting plate (26), cross rod through holes are formed in two ends of the cross rod (21) of the plate fastener, and bolts (25) penetrate through the cross rod through holes and the positioning holes (261).
8. A bridge tower construction method, characterized in that the supporting device for bridge tower construction is adopted according to any one of claims 1-7, the bridge tower (1) sequentially comprises an upper tower column, a cross beam, a middle tower column and a lower tower column from top to bottom, and when the outer surface of the bridge tower is constructed, the supporting device comprises the following steps:
s1: firstly, installing a bracket support (3) at a beam position, calculating the bearing capacity required by the bracket according to the erection height, the construction load and the wind load of the bracket support, and then installing a bracket support (2) on the bracket support (3), wherein a stay cable of an upper tower column passes through a gap reserved by the bracket support (2), so that the construction work of the outer surface of the upper tower column is carried out on the bracket support (2);
s2: dismantling a disc buckle bracket (2), installing a suspension type construction platform outside a beam, hoisting the suspension type construction platform onto the beam for construction, installing a transparent PVC plate for enclosure protection in the construction process, and installing an air filtering device so as to perform construction work on the outer surface of the beam;
s3: then, a hanging basket is arranged below the bracket support (3) through a driving mechanism, the hanging basket is arranged below the middle tower column, the driving mechanism drives the hanging basket to ascend along with the progress of the construction work of the outer surface of the middle tower column, the locking mechanism is released, the sliding support (5) slides towards the direction close to the bridge tower (1), and the relative locking of the sliding support (5) and the fixed support (4) is realized through the locking mechanism, so that the construction work of the outer surface of the middle tower column is completed;
s4: the tray buckle support (2) is installed on the ground, so that the tray buckle support (2) is arranged on the outer side of the lower tower column in a surrounding mode, and the construction work of the outer surface of the lower tower column is performed.
9. The bridge tower construction method according to claim 8, wherein in the step S1, a protective bar is installed and a safety protection net is laid on the outer side of the disc buckle bracket (2), and a PVC fence is installed on the disc buckle cross bar (21).
10. The bridge tower construction method according to claim 8, wherein in the step S3, an air outlet is provided at a ceiling (91), and a sand outlet for recovering sand is provided at one side of the basket.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202111273784.1A CN113944108B (en) | 2021-10-29 | 2021-10-29 | Supporting device for bridge tower construction and construction method using supporting device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111273784.1A CN113944108B (en) | 2021-10-29 | 2021-10-29 | Supporting device for bridge tower construction and construction method using supporting device |
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| CN113944108B true CN113944108B (en) | 2023-05-05 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN202298485U (en) * | 2011-11-02 | 2012-07-04 | 上海通筑机电设备有限公司 | Bridge tower surrounding type lifting platform |
| CN207176507U (en) * | 2017-07-13 | 2018-04-03 | 四川路桥桥梁工程有限责任公司 | Hanging cable of stay cable construction platform |
| CN109610325A (en) * | 2018-12-14 | 2019-04-12 | 中铁七局集团第五工程有限公司 | The construction method of high-speed railway bridge hanging basket mounting platform |
| CN210886923U (en) * | 2019-08-28 | 2020-06-30 | 上海市政工程设计研究总院（集团）有限公司 | Maintenance system of straight pylon of double-cable-plane cable-stayed bridge |
| CN111962395A (en) * | 2020-08-12 | 2020-11-20 | 中交武汉港湾工程设计研究院有限公司 | Large-inclination-angle main tower integrated tower building device |
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