CN113944108A - Supporting device for bridge tower construction and construction method applying supporting device - Google Patents
Supporting device for bridge tower construction and construction method applying supporting device Download PDFInfo
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- CN113944108A CN113944108A CN202111273784.1A CN202111273784A CN113944108A CN 113944108 A CN113944108 A CN 113944108A CN 202111273784 A CN202111273784 A CN 202111273784A CN 113944108 A CN113944108 A CN 113944108A
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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 applying the supporting device, wherein the supporting device comprises a bridge tower, 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 rods and disc buckle vertical rods, the disc buckle support is arranged around the outer side of the bridge tower, and a gap for a stay cable of the bridge tower to pass through is reserved on the disc buckle support; hanging baskets are connected below the bracket support through a driving mechanism, each hanging basket comprises fixed supports symmetrically arranged on two sides of the bridge tower, sliding supports are connected to two ends of each fixed support in a sliding mode, and the fixed supports and the sliding supports are matched with each other so as to surround 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 building structures in various forms, can not solve the restriction of stay cables, and the closed integral hanging basket can form a unified whole by means of high piers and the bridge tower, improves the safety of the hanging basket, reduces the influence of external factors on the hanging basket, 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
The suspension bridge and the cable-stayed bridge occupy very important positions in the super-large span bridge at present, compared with other bridge shapes, the suspension bridge and the cable-stayed bridge have the greatest advantages that the mechanical property of novel materials can be fully utilized, the single span of the bridge is enlarged, and thus the suspension bridge and the cable-stayed bridge of the same length only occupy little ground area and little 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 demand of navigation under the bridge, and have the advantages of simple bridge lines, beautiful bridge shape and the like.
However, in actual construction, due to the limitation of the shape of the bridge tower, especially the bridge tower with the stay cables, the stay cables are densely distributed, and the stay cables seriously affect the efficiency of normal construction in the process of coating a newly-built bridge tower and maintaining an old bridge tower, thereby bringing much inconvenience to the normal construction. The construction in the hanging basket mode is easily influenced by external factors, and the dense stay cables can seriously influence the normal rising and falling work of the hanging basket.
Meanwhile, the construction technology of the current outer wall construction hanging basket 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 states. Meanwhile, in actual construction, the shapes of the existing bridge tower and the high pier are diversified, particularly the bridge tower is in a variable cross section form, and the traditional construction hanging basket is in a vertical downward state under the action of gravity, can only be vertically upwards and downwards, cannot meet construction requirements, and cannot meet the construction of building structures in various forms.
Disclosure of Invention
In order to solve the problems in the prior art, the supporting device for bridge tower construction and the construction method using the supporting device are provided.
The technical scheme adopted by the invention 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 and comprises a plurality of disc buckle cross rods and disc buckle vertical rods, 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; hanging baskets are connected below the bracket supports through a driving mechanism, the hanging baskets comprise fixed supports symmetrically arranged on two sides of the bridge tower, sliding supports are connected to two ends of each fixed support in a sliding mode, and the fixed supports and the sliding supports are matched with each other so as to surround 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 relative locking of the fixed support and the sliding support.
Preferably, the locking mechanism comprises two symmetrically arranged telescopic frames, and one end of the fixed support and one end of the sliding support are both arranged between the two telescopic frames in a sliding manner; the first screw rod runs through the expansion bracket and is movably connected with the expansion bracket, a first nut is in threaded connection with the first screw rod, and the first nut is arranged on the outer side of the expansion bracket.
Preferably, the telescopic frame is inclined at two ends, and when the first nut rotates to realize the relative locking of the fixed support and the sliding support, the fixed support and the sliding support are both in contact with the inclined surface.
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 outer side of the sliding support is connected with a transparent PVC plate, the fixed support is connected with a bamboo plywood, a ceiling is connected above the hanging basket, and the transparent PVC plate, the bamboo plywood and the ceiling are matched with each other, so that the hanging basket forms a closed construction space.
Preferably, still detain the down tube including the dish that the incline direction set up, dish detain down tube one end with the dish is detained the horizontal pole and is linked to each other, the dish detain the down tube other end with the dish is detained the horizontal pole and/or the dish is detained the montant and is linked to each other, the dish is detained the down tube end to end and is the W type setting.
Preferably, the disc buckle transverse rod and the disc buckle vertical rod are connected end to end, so that the disc buckle support forms a cuboid structure; the fixed cover of montant is buckled to the dish is equipped with the connection pad, a plurality of locating hole has been seted up to the connection pad, the dish is buckled horizontal pole both ends and has been seted up the horizontal pole through-hole, the horizontal pole through-hole with wear to be equipped with the bolt in the locating hole.
The invention also provides a bridge tower construction method, and the supporting device for bridge tower construction comprises the following steps:
s1: firstly, mounting a bracket at a cross beam, calculating the bearing capacity required by the bracket according to the height, construction load and wind load of the bracket, and then mounting the bracket on the bracket, wherein the stay cable of the upper tower column passes through a gap reserved by the bracket, so that the construction work of the outer surface of the upper tower column is carried out on the bracket;
s2: dismantling the disc buckle support, installing a suspension type construction platform outside the cross beam, hoisting the suspension type construction platform to the cross 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 cross beam;
s3: then, a hanging basket is installed below the bracket support through a driving mechanism, the hanging basket is installed below the middle tower column, the driving mechanism drives the hanging basket to ascend along with the proceeding of 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, the relative locking of the sliding support and the fixed support is realized through the locking mechanism, and therefore the construction work of the outer surface of the middle tower column is completed;
s4: and installing the disc buckle support on the ground to enable the disc buckle support to be arranged on the outer side of the lower tower column in a surrounding mode, so that the outer surface of the lower tower column is constructed.
Preferably, in step S1, a protection guard bar is installed outside the buckle support, a safety net is laid on the protection guard bar, and a PVC fence is installed on the buckle cross bar.
Preferably, in step S3, an air outlet is provided in the ceiling, and a sand outlet for recovering sand is provided on one side of the basket.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention is provided with a mode that the bracket support is matched with the hanging basket, the bracket support is used for supporting the hanging basket integrally, the electric hoist can drive the hanging basket to lift, the width adjustment work of the hanging basket can be realized through the locking mechanism, and the construction work of the bridge tower with a variable cross-section form is adapted, so that the construction of various forms of construction mechanisms can be met, the construction problem is solved, the structure is reasonable, the design is ingenious, the application range is wider, and the popularization value is extremely high.
2. The hanging basket is provided with the closed integral hanging basket, a unified whole can be formed by means of the high piers and the bridge tower, the safety of the hanging basket is improved, and the influence of external factors is reduced, so that the integral stability of the hanging basket can be improved, and the safety coefficient is improved.
3. According to the locking mechanism provided by the invention, the relative sliding of the two oppositely arranged telescopic frames can be realized by loosening the nut, the inclined planes at the two ends of the telescopic frames provide enough moving space for the fixed support and the sliding support, and the locking work of the telescopic frames can be realized after the nut is screwed, and at the moment, the two ends of the fixed support and the two ends of the sliding support are in contact with the inclined planes, so that 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 support and the fixed support are convenient to move relatively, and the integral stability is better.
4. The invention is provided with a mode that the bracket is matched with the disc buckle bracket, the bracket is used for supporting the whole disc buckle bracket, the disc buckle bracket convenient to disassemble can be reasonably designed according to the distribution condition of the stay cables, so that the planning work of the disc buckle bracket is well done, the stay cables can conveniently penetrate through the disc buckle bracket, and the support erection of the stayed cable densely-distributed bridge tower is further realized, so that workers can conveniently construct the outer surface of the bridge tower, the operation is simple, and the bracket is convenient to disassemble, so that the influence generated by the stay cables can be avoided, and meanwhile, the bracket is matched with the bracket, has a good supporting effect and has extremely high popularization value.
5. According to the invention, the disassembling work of the disc buckle transverse rod and the disc buckle vertical rod is realized by the matching mode of the arranged connecting disc and the bolt, and the matching effect is better due to the shape characteristics of the bolt, the conditions that the disc buckle transverse rod and the disc buckle vertical rod are loosened and the like are prevented, the structure is reasonable, the design is ingenious, the disc buckle support is convenient to disassemble, the disc buckle support is integrally more reliable, and the safety coefficient is higher.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of 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 the buckle holder of the present invention;
FIG. 4 is a side view of a part of a basket according to the present invention (in the operating state);
FIG. 5 is a schematic view of the cross bar distribution of the disc fastener of the present invention;
FIG. 6 is a schematic view of the arrangement of the diagonal rods of the disc fastener of the present invention;
FIG. 7 is a schematic view showing the arrangement of the supporting rods for the buttress in the present invention;
FIG. 8 is a top view of a portion of the construction of the buckle holder of the present invention;
FIG. 9 is a front view of a portion of the buckle holder of the present invention;
FIG. 10 is an enlarged view of the portion A of FIG. 9;
FIG. 11 is a top view of the bracket structure of the present invention;
FIG. 12 is a front view of the bracket structure of the present invention;
FIG. 13 is a schematic view of the rib distribution of the present invention;
FIG. 14 is a first top view of the basket structure of the present invention;
FIG. 15 is a second top view of the basket structure of the present invention;
FIG. 16 is a third top view of the basket structure of the present invention;
FIG. 17 is a schematic view of a portion of the telescoping mast of FIG. 14;
FIG. 18 is a schematic view of a portion of the telescoping mast of FIG. 14 (in an operational condition);
FIG. 19 is a schematic view of a portion of the universal wheel of FIG. 14;
FIG. 20 is a schematic view of the construction of the basket in the present invention;
FIG. 21 is a schematic view of a portion of the rubber dam of FIG. 20;
FIG. 22 is an enlarged view of a part of the structure of the basket of the present invention.
Description of reference numerals:
1, a bridge tower; 2, coiling and buckling a bracket; 21 coiling the cross rod; 22 coiling and buckling the vertical rod; 23, buckling an inclined rod; 24 supporting wall rods; 25, a bolt; 26 a connecting disc; 261 positioning holes; 3, a bracket; 31 a bracket connecting rod; a 32 bracket support plate; 33 reinforcing ribs; 4, fixing a bracket; 5, sliding the bracket; 6, a telescopic frame; 61, a bevel; 62 a first screw; 63 a first nut; 7 universal wheels; 71 a second screw; 72 a second nut; 73 a fixed mount; 8, an electric hoist; 9, hanging basket construction platform; 91 ceiling; 92 a transparent PVC sheet; 93 bamboo plywood; 94 rubber baffles; 95 loose-leaf bearings.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
As shown in fig. 1-22, this embodiment provides a strutting arrangement for bridge tower construction, including bridge tower 1, bridge tower 1 is connected with bracket support 3, and bracket support 2 is detained to the dish above bracket support 3 is connected with, and the dish is detained bracket 2 and is included that a plurality of dish detains horizontal pole 21 and dish and detain montant 22, and dish is detained bracket 2 and encircles the setting in the outside of bridge tower 1, and dish is detained bracket 2 and is left the clearance that supplies the suspension cable of bridge tower 1 to pass.
Support 2 is detained to dish is convenient for install and dismantlement, moreover, the steam generator is simple in structure, and the bearing capacity is strong, can be according to the distribution condition rational design of suspension cable, thereby make the planning work that support 2 was detained to the dish, make things convenient for the suspension cable to run through dish and detain support 2, and then realize that the support of suspension cable densely covered bridge tower 1 is set up, thereby the workman of being convenient for is under construction to the bridge tower surface, and the steam generator is simple in operation, support and convenient dismantlement, consequently, can avoid the produced influence of suspension cable, mutually support with the bracket of bracket simultaneously, fine support effect has again, and high spreading value has.
Still fixedly connected with buttress bracing piece 24 on the cross bar 21 is detained to the dish, buttress bracing piece 24 contacts with the surface of bridge tower 1, and firm safety is in outside installation protection railing, is laid safety protection network, carries out safety protection, and construction operation layer adopts PVC to enclose the fender, satisfies the construction requirement.
The disc buckle cross rod 21 and the disc buckle vertical rod 22 are connected end to end so that the disc buckle support 2 forms a cuboid structure.
The connecting disc 26 is fixedly sleeved on the vertical disc buckling rod 22, and a plurality of positioning holes 261 are formed in the connecting disc 26. The positioning holes 261 can be provided in a plurality of numbers according to actual needs, so that the connecting discs 26 can be conveniently connected with the cross bars 21 of the disc fasteners in different directions.
The cross rod through holes are formed in the two ends of the disc buckling cross rod 21, and the bolts 25 penetrate through the cross rod through holes and the positioning holes 261.
The pin 25 includes an upper pin end and a lower pin end that cooperate to form an angle, and the positioning hole 261 includes a hole entrance and a hole exit, with the angle being disposed at the hole exit.
Because bolt 25 self shape characteristics, consequently the cooperation effect is better, prevents to coil to detain horizontal pole 21 and the appearance that the condition such as montant 22 takes place not hard up is detained to the dish, rational in infrastructure, design benefit when solving the dish and detaining support 2 and conveniently dismantling work, can make the dish again detain support 2 wholly more reliable, factor of safety is higher.
Still buckle down tube 23 including the dish that the incline direction set up, dish buckle down tube 23 one end links to each other with dish knot horizontal pole 21, and dish buckles the down tube 23 other end and dish and buckles horizontal pole 21 and/or dish and detain montant 22 and link to each other.
The connecting disc 26 at the joint of the cross rod 21 and the vertical rod 22 is buckled with the disc buckle inclined rod 23, the connecting disc 26 is fixedly connected with the disc buckle cross rod 21, the connecting disc 26 is rotatably connected with the disc buckle inclined rod 23, and the disc buckle inclined rod 23 can be connected to two sides of one connecting disc 26, so that the disc buckle 23 is connected end to end and is arranged in a W shape.
Meanwhile, the disc buckle diagonal rods 23 can reasonably adjust the distribution positions according to the distribution condition of the stay cables.
The bracket support 3 comprises a plurality of bracket connecting rods 31, and the plurality of bracket connecting rods 31 are connected end to end so that the bracket support 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 leaning direction. Bracket backup pad 32, bracket support 3 and 1 three of bridge tower mutually support to form the triangle-shaped structure, do benefit to and improve the holistic stability of bracket support 3.
The joint of the bracket support 3 and the bridge tower 1 is provided with a reinforcing rib 33, so that the joint of the bracket support 3 and the bridge tower 1 is prevented from being torn and the like.
The welding of bracket support 3 can adopt the mode of planting the bar anchor to improve welded quality.
The lower part of the bracket support 3 is connected with a hanging basket through a driving mechanism, the driving mechanism is an electric hoist 8, and the hanging basket can be driven to move in the whole vertical direction through the electric hoist 8.
In consideration of the stability during lifting, a plurality of lifting points of the hanging basket can be controlled by one controller to be synchronous, the 4-face hanging basket is synchronously constructed during lowering and lifting, and the corresponding speed is controlled when the lifting is asynchronous or the hanging basket is lifted together after other synchronization.
The hanging basket comprises fixed supports 4 symmetrically arranged on two sides of the bridge tower 1, sliding supports 5 are connected to two ends of each fixed support 4 in a sliding mode, and the fixed supports 4 and the sliding supports 5 are matched with each other so as to surround 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 the 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, so that the hanging basket is suitable for the construction work of the bridge tower with the cross section, the construction of building mechanisms in various forms can be met, the construction problem is solved, the structure is reasonable, the design is ingenious, the application range is wider, and the high popularization value is realized.
Locking mechanism is including two expansion bracket 6 of symmetry setting, and fixed bolster 4 one end and 5 one ends of sliding support all slide and set up between two expansion bracket 6.
First screw 62 runs through expansion bracket 6 and with expansion bracket 6 swing joint, first screw 62 threaded connection has first nut 63, and first nut 63 sets up in the expansion bracket 6 outside.
The first screw 62 is in threaded connection with the telescopic frame 6.
The both ends of expansion bracket 6 are inclined plane 61, and when first nut 63 rotated and realized the relative locking of fixed bolster 4 and sliding bracket 5, fixed bolster 4 and sliding bracket 5 all contacted with inclined plane 61.
Through loosening first nut 63, can realize the relative slip of two expansion brackets 6 of relative setting, and the inclined plane 61 at expansion bracket 6 both ends provides sufficient activity space for fixed bolster 4 and sliding bracket 5 again, after screwing first nut 63, can realize the locking work of expansion bracket 6 again.
Fixed bolster 4 and 5 both ends of sliding support contact with inclined plane 61 this moment, prevent that locking mechanism from taking place to rock, have effectively improved holistic stability, convenient operation has greatly improved, the whole security of hanging flower basket, and make things convenient for sliding support 5 and fixed bolster 4 to take place relative activity, and overall stability is better.
The sliding support 5 is fixedly connected with a fixed frame 73, the fixed 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 hanging basket further comprises a hanging basket construction platform 9, the outer side of the sliding support 5 is connected with a transparent PVC plate 92, the fixed support 4 is connected with a bamboo rubber plate 93, and a ceiling 91 is connected above the hanging basket.
The transparent PVC plate 92, the bamboo plywood 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 outside the bridge tower 1.
The closed integral hanging basket can form a unified whole by means of the high piers and the bridge tower, improves the safety of the hanging basket, reduces the influence of external factors, and therefore can improve the integral stability of the hanging basket and improve the safety factor.
The construction hanging basket can be changed into various structural forms such as annular and rhombic according to the structural forms of the bridge pier and the bridge tower.
The working process is as follows: as shown in fig. 4, after the basket is processed, the basket is spliced and assembled on the bridge tower 1 (at the elevation position in the figure) to form a whole, at the moment, the basket is located at the wide section of the bridge tower 1, all components of the basket are hoisted in place, after the steel wire rope and the safety rope are hung in place, the second screw rod 71 is adjusted firstly, so that the distance between the basket and the bridge tower 1 is adjusted through the universal wheel 7, and then the basket is fixed by using a locking mechanism of the basket to form a closed integral structure.
When the hanging basket rises and runs to the narrow section II of the bridge tower 1, the distance between the construction hanging basket and the bridge tower 1 is too large due to the change of the section, the construction is not facilitated, the construction hanging basket needs to be adjusted, and the specific adjustment process is as follows:
1. the first nut 63 on one side is loosened in the tightened state, and the sliding bracket 5 can be dislocated relative to the whole cradle structure.
2. The sliding support 5 is close to the bridge tower 1 by using a chain block or manually adjusting, and the distance between the hanging basket and the bridge tower 1 is adjusted by using a second screw rod 71 and a 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 the hanging basket forms a stable structure at the moment, so that construction operation can be carried out.
A bridge tower construction method is characterized in that by adopting the supporting device for bridge tower construction, a 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 construction of the outer surface of the bridge tower is carried out, the method comprises the following steps:
s1: firstly, mounting a bracket 3 at a cross beam position, calculating the bearing capacity required by a bracket according to the height, construction load and wind load of the disc buckle bracket, and then mounting a disc buckle bracket 2 on the bracket 3, wherein a stay cable of an upper tower column penetrates through a gap reserved in the disc buckle bracket 2, so that the construction work of the outer surface of the upper tower column is carried out on the disc buckle bracket 2;
s2: the disc buckle support 2 is removed, a suspension type construction platform is installed outside the cross beam and is hoisted to the cross beam for construction, a transparent PVC plate is installed for enclosure protection in the construction process, and an air filtering device is installed, so that the construction work of the outer surface of the cross beam is carried out;
s3: then, a hanging basket is installed below the bracket support 3 through a driving mechanism, the hanging basket is installed below the middle tower column, along with the construction work of the outer surface of the middle tower column, the driving mechanism drives the hanging basket to ascend, the locking mechanism is released, the sliding support 5 slides towards the direction close to the bridge tower 1, the relative locking of the sliding support 5 and the fixed support 4 is realized through the locking mechanism, and therefore the construction work of the outer surface of the middle tower column is completed;
s4: and installing the disc buckle support 2 on the ground, and enabling the disc buckle support 2 to be arranged on the outer side of the lower tower column in a surrounding mode, so that the outer surface of the lower tower column is constructed.
In step S1, a protection guard bar is installed outside the buckle holder 2 and a safety net is laid, and a PVC fence is installed on the buckle rail 21.
In step S3, an air outlet is provided in the ceiling 91, and a sand outlet for recovering sand is provided on 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 are all worn by the protective suit, the protective suit is similar to a diving suit, and a special air supply pipe supplies air to the head for the breathing of the constructors.
In order to meet the construction requirement, the hanging basket construction platform 9 is designed to serve as a construction platform, personnel move along with the hanging basket for construction, in order to guarantee suppression of dust raising and green construction requirements, the transparent PVC plate 92 is surrounded around the hanging basket, and the ceiling 91 is arranged at the top, 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 shed roof 91, the sand material and paint material splashing pollution and dust and smoke pollution during sand blasting and rust removal can be avoided.
The invention adopts the disc buckle support 2 to be constructed by matching with the hanging basket, and adopts the disc buckle support 2 to be constructed in the upper pylon region where the stayed cables are densely distributed, thereby effectively solving the restriction of the stayed cables, and the bridge tower 1 is provided with the bracket support 3 as a support platform, and the assembled disc buckle support 2 is arranged on the bridge tower, the disc buckle support 2 is convenient to install and disassemble, the modulus matching modes are more, the conflict of the stayed cables can be avoided by reasonable design, and the construction of the outer surface of the bridge tower in the stayed cable region can be met.
The enclosing 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 an independent construction hanging basket is easily influenced by the outside, such as wind power, is perfectly overcome.
The bridge tower coating is divided into four parts: and the upper tower column, the cross beam, the middle tower column and the lower tower column are sequentially subjected to anticorrosive coating construction from top to bottom.
The bracket support 3 is erected with the disc buckle support 2 to serve as a construction platform in the upper tower column construction, the bracket support 3 is installed on the cross beam, the required bearing capacity of the bracket support 3 is calculated according to the height erected by the disc buckle support 2, construction load and wind load, and the bracket is designed to be an I25a I-shaped steel bracket to meet construction requirements.
Go up the pylon and be vertical cross-section, use the dish to detain support 2 and be convenient for ann and tear open, simple structure, bearing capacity is strong, installs counterfort bracing piece 24 when installing, and firm safety is in outside installation protection railing, lay safety protection net, carries out safety protection, and construction operation layer adopts PVC to enclose the fender, satisfies the construction requirement.
Bridge tower steel crossbeam externally designs suspension type construction platform, and the hoist is under construction on the crossbeam, installs transparent PVC board in the work progress and encloses the fender protection to air filter equipment such as installation fan. The suspended construction platform adopts a conventional support.
The tower column is the constant cross-section form of slope in the main bridge, for adapting to the construction demand, designs the hanging flower basket as construction platform, and personnel remove the construction along with the hanging flower basket, for guaranteeing to restrain the raise dust, green construction requirement, at the transparent PVC board of hanging flower basket enclosure all around, the shed roof is established at the top, can effectively solve outdoor green construction problem, reduces the construction environment influence.
The lower tower column construction adopts the floor erection of the disc buckle support 2, adopts the same arrangement mode as the cantilever support, and is directly erected on the bearing platform.
The invention creates a safe, simple and environment-friendly construction method for the anticorrosive coating construction of the stayed-cable bridge tower, thereby not only improving the construction efficiency, but also saving the material cost and improving the benefit.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The supporting device for bridge tower construction comprises a bridge tower (1) and is characterized in that the bridge tower (1) is connected with a bracket support (3), a disc buckling support (2) is connected above the bracket support (3), the disc buckling support (2) comprises a plurality of disc buckling cross rods (21) and disc buckling vertical rods (22), the disc buckling support (2) is arranged on the outer side of the bridge tower (1) in a surrounding mode, and gaps for stay cables of the bridge tower (1) to penetrate through are reserved on the disc buckling support (2); a hanging basket is connected below the bracket support (3) through a driving mechanism, the hanging basket comprises fixed supports (4) symmetrically arranged on two sides of the bridge tower (1), sliding supports (5) are connected to two ends of each fixed support (4) in a sliding mode, and the fixed supports (4) and the sliding supports (5) are matched with each other so as to surround 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 supporting device for bridge tower construction according to claim 1, wherein the locking mechanism comprises two symmetrically arranged telescopic frames (6), and one end of the fixed bracket (4) and one end of the sliding bracket (5) are both arranged between the two telescopic frames (6) in a sliding manner; 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 the expansion bracket (6) outside.
3. The supporting device for bridge tower construction as claimed in claim 2, wherein the two ends of the telescopic frame (6) are provided with inclined surfaces (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 surfaces (61).
4. The supporting device for bridge tower construction according to claim 1, wherein a fixing frame (73) is fixedly connected to the sliding support (5), a second screw (71) is connected to the fixing frame (73) in a threaded manner, a universal wheel (7) in contact with the bridge tower (1) is connected to one end of the second screw (71), and a second nut (72) is connected to the other end of the second screw (71) in a threaded manner.
5. The supporting device for bridge tower construction according to claim 1, wherein a transparent PVC plate (92) is connected to the outer side of the sliding support (5), a bamboo plywood plate (93) is connected to the fixing support (4), a ceiling (91) is connected to the upper side of the hanging basket, and the transparent PVC plate (92), the bamboo plywood plate (93) and the ceiling (91) are matched with each other, so that the hanging basket forms a closed construction space.
6. The supporting device for bridge tower construction according to claim 1, further comprising a disc buckling diagonal rod (23) arranged in an inclined direction, wherein one end of the disc buckling diagonal rod (23) is connected with the disc buckling cross rod (21), the other end of the disc buckling diagonal rod (23) is connected with the disc buckling cross rod (21) and/or the disc buckling vertical rod (22), and the disc buckling diagonal rod (23) is connected end to end and is arranged in a W shape.
7. The supporting device for bridge tower construction as claimed in 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 support (2) forms a rectangular parallelepiped structure; the fixed cover of dish knot montant (22) is equipped with connection pad (26), a plurality of locating hole (261) has been seted up in connection pad (26), the cross rod through-hole has been seted up at dish knot horizontal pole (21) both ends, the cross rod through-hole with wear to be equipped with bolt (25) in locating hole (261).
8. A bridge tower construction method, characterized in that, the bridge tower (1) comprises an upper tower column, a cross beam, a middle tower column and a lower tower column from top to bottom in sequence, when the construction of the outer surface of the bridge tower is carried out, the method comprises the following steps:
s1: firstly, a bracket (3) is installed at a cross beam, the bearing capacity required by the bracket is calculated according to the height, construction load and wind load of the disc buckle bracket, and then the disc buckle bracket (2) is installed on the bracket (3), wherein a stay cable of an upper tower column penetrates through a gap reserved in the disc buckle bracket (2), so that the construction work of the outer surface of the upper tower column is carried out on the disc buckle bracket (2);
s2: the disc buckle support (2) is removed, a suspension type construction platform is installed outside the cross beam and is hoisted to the cross beam for construction, a transparent PVC plate is installed for enclosure protection in the construction process, and an air filtering device is installed, so that the construction work of the outer surface of the cross beam is performed;
s3: then, a hanging basket is installed below the bracket support (3) through a driving mechanism, the hanging basket is installed below the middle tower column, along with the construction work of the outer surface of the middle tower column, the driving mechanism drives the hanging basket to ascend, a locking mechanism is released, the sliding support (5) slides towards the direction close to the bridge tower (1), the relative locking of the sliding support (5) and the fixed support (4) is realized through the locking mechanism, and therefore the construction work of the outer surface of the middle tower column is completed;
s4: and installing the disc buckle support (2) on the ground, and enabling the disc buckle support (2) to be arranged on the outer side of the lower tower column in a surrounding manner, so that the outer surface of the lower tower column is constructed.
9. The method for using the supporting device for bridge tower construction according to claim 8, wherein in step S1, protective guard bars are installed and safety protection nets are laid on the outer sides of the fastener coiling brackets (2), and PVC fenders are installed on the fastener coiling cross bars (21).
10. The method of claim 8, wherein in 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.
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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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| 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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