CN112854003B - Bridge expansion joint installation construction method - Google Patents
Bridge expansion joint installation construction method Download PDFInfo
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- CN112854003B CN112854003B CN202110203055.2A CN202110203055A CN112854003B CN 112854003 B CN112854003 B CN 112854003B CN 202110203055 A CN202110203055 A CN 202110203055A CN 112854003 B CN112854003 B CN 112854003B
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- expansion joint
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- fixing
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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
- E01D19/06—Arrangement, construction or bridging of expansion joints
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Abstract
The invention relates to a bridge expansion joint installation construction method, which completes the installation of a bridge expansion joint through the cooperation of a connecting block, a material placing device, a moving device and a laying device. The invention can solve the problems that when the bridge expansion joint is installed manually, reinforcing steel bars are laid on two sides of the position of the expansion joint to be installed firstly, then the expansion joint is placed at the installation position for installation, and finally concrete is poured, the process of installing the expansion joint manually is complicated, safety accidents easily occur during installation, and when the existing bridge expansion joint installation equipment is used for installation and construction, the reinforcing steel bars are laid on two sides of the position of the expansion joint to be installed firstly, after the laying of the reinforcing steel bars is finished, the expansion joint is installed at the position to be installed through hoisting equipment and the like, and the expansion joint is difficult to position and install after the existing hoisting equipment is hoisted, so that the efficiency of the expansion joint is low and the like.
Description
Technical Field
The invention relates to the technical field of bridge manufacturing, in particular to a bridge expansion joint installation construction method.
Background
The expansion joints of the bridge are arranged between two beam ends, between the beam ends and an abutment or on the hinged position of the bridge in order to meet the requirement of bridge deck deformation, the expansion joints are required to freely expand and contract in two directions parallel to and vertical to the axis of the bridge, and the expansion joints are firm and reliable and smooth without leaps and noises when a vehicle runs; the rainwater and garbage soil can be prevented from infiltration and blocking; the installation, the inspection, the maintenance and the dirt elimination are all simple and convenient. At the position of the expansion joint, the handrail and the bridge deck pavement are disconnected. The bridge expansion joint has the function of adjusting the displacement and connection between upper structures caused by vehicle load and bridge building materials, once a telescopic device of the skew bridge is damaged, the speed, comfort and safety of driving are seriously influenced, and even driving safety accidents are caused, so that the bridge expansion joint is very necessary to be installed on the bridge.
When the existing bridge expansion joint installation equipment is used for installing and constructing the bridge expansion joint, the following problems often exist:
(1) When the bridge expansion joint is installed manually, reinforcing steel bars are usually laid on two sides of the position of the expansion joint to be installed manually, then the expansion joint is placed at the installation position for installation manually, and finally concrete is poured on the expansion joint, so that the process of manually installing the expansion joint is complicated, and safety accidents are easy to happen when the reinforcing steel bars and the expansion joint are laid, and the installation efficiency of the expansion joint is low;
(2) When installing construction to the bridge expansion joint, current bridge expansion joint erection equipment adopts the manual work to lay the reinforcing bar at the both sides of waiting to install the expansion joint position earlier usually, and the reinforcing bar is laid and is accomplished the back, and rethread lifting device etc. are installed the expansion joint and are waiting the mounted position, and are difficult to fix a position the installation to the expansion joint after the hoist and mount of current lifting device to make the inefficiency at expansion joint.
In order to make up the defects of the prior art, the invention provides a bridge expansion joint installation construction method.
Disclosure of Invention
The technical scheme adopted by the invention to solve the technical problem is as follows: a bridge expansion joint installation and construction method comprises the following specific steps:
s1, equipment inspection: before the bridge expansion joint installation equipment is used for installing the bridge expansion joint, the bridge expansion joint is checked;
s2, feeding treatment: after the equipment inspection is finished, manually locking and fixing the bridge expansion joint to be laid at the lower end of the laying device, and clamping and fixing the reinforcement cage to be laid through the discharging device;
s3, paving: after the feeding is finished, manually moving the equipment to a construction position, manually laying the steel reinforcement framework by the laying device, and then hoisting the bridge expansion joint to an installation position by the laying device for installation;
s4, pouring treatment: after the reinforcing steel bar framework and the bridge expansion joint are paved, pouring concrete on the paved reinforcing steel bar framework and the bridge expansion joint in a manual or mechanical mode;
s5, drying and quality inspection: after the concrete is poured, naturally drying the concrete, and after the concrete is dried, manually carrying out quality inspection treatment on the installed bridge expansion joint;
in the process of installing and constructing the bridge expansion joint in the steps S1-S5, installing and constructing the bridge expansion joint by adopting bridge expansion joint installation equipment, wherein the equipment specifically comprises a connecting block, a material placing device, a moving device and a laying device, the material placing device is symmetrically installed on the left and right sides of the connecting block, the moving device is installed at the outer end of the material placing device, and the laying device is installed at the upper end of the connecting block; wherein:
the blowing device includes the bracing piece, adjustment mechanism and chucking mechanism, the bracing piece is evenly installed along length direction to the link block side, bracing piece outside slidable mounting has adjustment mechanism, chucking mechanism is installed to the symmetry around the adjustment mechanism middle part, concrete during operation, through the position of artifical adjustment mechanism on the bracing piece, make adjustment mechanism adjust the distance of mating formation between the framework of steel reinforcement, and through the manual work position of adjusting chucking mechanism, make chucking mechanism adjust the installation distance between framework of steel reinforcement and the bridge floor, thereby make things convenient for machinery to mate framework of steel reinforcement.
The adjusting mechanism comprises an adjusting sleeve, a T-shaped block, a locking screw rod, a connecting rod, a fixed rod, a sliding sleeve and an upper material plate, wherein the adjusting sleeve is arranged in the middle of the supporting rod in a sliding mode, the T-shaped block is arranged at the upper end of the inner side of the adjusting sleeve, the T-shaped block is arranged inside the supporting rod in a sliding mode, the locking screw rod is arranged at the upper end of the adjusting sleeve in a sliding mode, the lower end of the locking screw rod is connected with the T-shaped block in a threaded connection mode, the adjusting sleeve is connected with the adjusting sleeve through the connecting rod, the fixed rod is arranged at the lower end of the adjusting sleeve, the sliding sleeve is arranged at the lower end of the fixed rod in a sliding mode, the upper material plate is arranged at the lower end of the sliding sleeve in a sliding mode, when the adjusting mechanism works, the locking screw rod and the T-shaped block are rotated manually and separated from the supporting rod, the position of the adjusting sleeve outside the supporting rod is adjusted, and the distance between the upper material plates is adjusted.
The laying device comprises a lifting mechanism and a fixing mechanism, the lifting mechanism is installed at the upper end of the connecting block, the fixing mechanism is installed at the lower end of the lifting mechanism, the fixing mechanism is arranged at the lower end of the connecting block, and during specific work, the bridge expansion joint to be paved is placed on the fixing mechanism through manpower, so that the fixing mechanism clamps and fixes the bridge expansion joint, and after the bridge expansion joint is clamped and fixed, the fixing mechanism is driven to move through the lifting mechanism, so that the fixing mechanism places and installs the bridge expansion joint.
The hoisting mechanism comprises a supporting block, a hoisting motor, side plates, a winding drum, a steel wire rope and a reversing wheel, the supporting block is arranged at the middle part of the upper end of a connecting block, the hoisting motor is arranged at the upper end of the supporting block, the side plates are arranged on the left side of the supporting block, the winding drum is arranged between the side plates through a bearing, the output end of the hoisting motor is connected with the winding drum through a coupler, the steel wire rope is wound outside the winding drum, the reversing wheel is symmetrically arranged on the front and back of the upper end of the connecting block, the steel wire rope bypasses the reversing wheel from the right end and passes through the connecting block to be connected with a fixing mechanism, in the concrete working process, the fixing mechanism clamps and fixes the bridge expansion joint, the winding drum is driven to rotate through the hoisting motor, the steel wire rope is loosened, the steel wire rope is driven to descend by the reversing wheel, and the bridge expansion joint to be paved is hoisted to the mounting position.
The fixing mechanism comprises a transverse plate, a guide rod, a fixing clamp block, a rotating screw rod, a sliding clamp block, yan Weikuai and a locking nut, the transverse plate is installed at the lower end of the steel wire rope, the guide rod is symmetrically installed at the front and back of the upper end of the transverse plate, the upper side of the guide rod is slidably installed in the connecting block, the fixing clamp block is installed at four corners of the lower end of the transverse plate, the rotating screw rod is installed at the upper side of the outer end of the fixing clamp block in a threaded connection mode, the sliding clamp block is installed at the inner end of the rotating screw rod through a bearing, dovetail blocks are symmetrically installed at the front and back of the sliding clamp block and are slidably installed in the fixing clamp block, the locking nut is installed at the middle of the rotating screw rod in a thread fit mode, when the fixing mechanism works, the bridge expansion joint to be installed is placed between the fixing clamp block and the sliding clamp block through a manual operation, the rotating screw rod drives the sliding clamp block and the dovetail blocks to move inwards along the fixing clamp block, so that the fixing clamp block and the fixing clamp block are fixed tightly with the sliding clamp block, and after the bridge expansion joint is clamped, the fixing clamp block is fixed, and the rotating screw rod is prevented from sliding clamp block from sliding under the driving of the rotating screw rod.
As a preferred technical scheme, the moving device comprises a fixing plate, vertical rods, mounting frames, idler wheels and a crawler belt, the fixing plate is mounted at the outer end of each supporting rod, the vertical rods are uniformly mounted at the lower ends of the fixing plates from front to back, the mounting frames are mounted at the lower ends of the vertical rods, the idler wheels are mounted on the inner sides of the mounting frames through pin shafts and connected through the crawler belt, and when the device works, the idler wheels drive the crawler belt to rotate through manual pushing of the device, so that the device is manually moved to a construction position.
As a preferred technical scheme, the clamping mechanism comprises a U-shaped plate, a clamping rod and a clamping spring, the U-shaped plate is arranged on the upper sides of sliding sleeves on the front side and the rear side, the clamping rod is slidably arranged in the middle of the U-shaped plate, the clamping spring is sleeved in the middle of the clamping rod and arranged on the inner side of the U-shaped plate, and when the clamping mechanism works specifically, the clamping rod is pulled outwards manually to extrude the clamping spring and separate from the fixing rod, so that the height position of the feeding plate is adjusted, and after the height position of the feeding plate is adjusted, the clamping rod is driven by the clamping spring to be clamped into the fixing rod, so that the feeding plate clamps and fixes the steel bar frameworks with different widths.
As a preferred technical scheme of the invention, the middle part of the upper end of the support rod is provided with a T-shaped groove, the T-shaped block is slidably arranged in the T-shaped groove, the middle part of the T-shaped block is provided with a threaded hole, the lower end of the locking screw rod is arranged in the threaded hole in a threaded matching manner, the T-shaped groove plays a role in guiding and limiting the adjusting sleeve through the T-shaped block, and the locking screw rod enables the adjusting sleeve to be locked and fixed on the outer side of the support rod through the matching between the locking screw rod and the threaded hole.
According to the preferable technical scheme, the electromagnets are arranged on the inner side of the feeding plate, the clamping grooves are uniformly formed in the lower end of the feeding plate from front to back, the electromagnets are convenient for the feeding plate to suck and fix the steel reinforcement framework, and the clamping grooves are convenient for the steel reinforcement framework to be placed on the lower side of the feeding plate.
As a preferred technical scheme of the invention, the groove is arranged on the outer side of the reversing wheel, the steel wire rope is arranged in the groove, and the groove has a limiting effect on the steel wire rope so as to prevent the steel wire rope from separating from the reversing wheel.
As a preferred technical scheme of the invention, the middle part of the fixed clamping block is provided with a rectangular groove, the sliding clamping block is arranged in the rectangular groove in a sliding manner, dovetail grooves are symmetrically arranged in the rectangular groove in the front and back direction, the dovetail blocks are arranged in the dovetail grooves in a sliding manner, the working surfaces of the fixed clamping block and the sliding clamping block are both provided with sawtooth structures, the sliding clamping block slides in the rectangular groove, and the dovetail block slides in the dovetail groove, so that the sliding clamping block is guided and limited, and the zigzag structures arranged on the working surfaces of the fixed clamping block and the sliding clamping block avoid the condition that the bridge expansion joint is separated from safety accidents in the lifting process.
As a preferred technical scheme of the invention, the fixing rods positioned on the front side and the rear side are uniformly provided with clamping holes from top to bottom, the inner ends of the clamping rods are clamped in the clamping holes in a clamping manner, and the inner ends of the clamping rods are clamped in the clamping holes at different positions, so that the position of the feeding plate is quickly adjusted.
Compared with the prior art, the invention has the following advantages:
1. according to the bridge expansion joint installation construction method provided by the invention, the reinforcing steel bar framework is laid after being placed, and in the process of laying the reinforcing steel bar framework, the bridge expansion joint is hoisted to the position above the installation position through the laying device, so that the laying device can be used for positioning and installing the bridge expansion joint, the situations that the manual installation process is complicated, and safety accidents are easy to occur when the reinforcing steel bars and the expansion joint are laid are avoided, and the expansion joint installation efficiency is improved;
2. according to the bridge expansion joint installation construction method provided by the invention, the support rod is separated from the T-shaped block through the locking screw rod, so that the position of the adjusting sleeve sleeved on the outer side of the support rod is adjusted, the distance between the feeding plates is further adjusted, the feeding plates clamp and fix the steel bar frameworks with different lengths, and the clamping springs are extruded and separated from the fixing rods through the clamping rods, so that the height positions of the feeding plates are adjusted, and the feeding plates clamp and fix the steel bar frameworks with different widths;
3. according to the bridge expansion joint installation construction method provided by the invention, the sliding clamping block and the dovetail block are driven to move inwards along the fixed clamping block through the rotating screw rod, so that the sliding clamping block and the dovetail block clamp and fix the bridge expansion joint to be installed, the rotating screw rod is locked and fixed on the fixed clamping block through the locking nut, the sliding of the sliding clamping block is avoided, and meanwhile, the sawtooth structures arranged on the working surfaces of the fixed clamping block and the sliding clamping block are used for avoiding the safety accident caused by the separation of the bridge expansion joint in the lifting process.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a flow chart of the present invention;
FIG. 2 is a schematic perspective view of the present invention in its working state;
FIG. 3 is a top plan view of the working condition of the present invention;
FIG. 4 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 3 in accordance with the present invention;
FIG. 5 is a cross-sectional view taken along line B-B of FIG. 3 in accordance with the present invention;
FIG. 6 is a partial cross-sectional view of the present invention between the stationary rod, sliding sleeve and clamping mechanism;
FIG. 7 is a partial cross-sectional view of the securing mechanism of the present invention;
FIG. 8 is a cross-sectional view of the present invention between the fixed block, the sliding block and the dovetail block;
FIG. 9 is an enlarged view of a portion of FIG. 4 according to the present invention.
Detailed Description
In order to make the technical means, the creation features, the achievement purposes and the effects of the invention easy to understand, the invention is further explained with reference to fig. 1 to 9.
A bridge expansion joint installation and construction method comprises the following specific steps:
s1, equipment inspection: before the bridge expansion joint installation equipment is started to install the bridge expansion joint, the bridge expansion joint is checked;
s2, feeding treatment: after the equipment inspection is finished, the expansion joint of the bridge to be laid is locked and fixed at the lower end of the laying device 4 by manpower, and the reinforcement cage to be laid is clamped and fixed by the discharging device 2;
s3, paving: after the feeding is finished, manually moving the equipment to a construction position, manually laying the steel reinforcement framework by the laying device 2, and then hoisting the bridge expansion joint to an installation position by the laying device 4 for installation;
s4, pouring treatment: after the reinforcing steel bar framework and the bridge expansion joint are paved, pouring concrete on the paved reinforcing steel bar framework and the bridge expansion joint in a manual or mechanical mode;
s5, air-drying quality inspection: after the concrete is poured, naturally drying the concrete, and after the concrete is dried, manually carrying out quality inspection treatment on the installed bridge expansion joint;
in the process of installing and constructing the bridge expansion joint in the steps S1-S5, installing and constructing the bridge expansion joint by adopting bridge expansion joint installation equipment, wherein the equipment specifically comprises a connecting block 1, a material placing device 2, a moving device 3 and a laying device 4, the material placing devices 2 are symmetrically installed on the left and right sides of the connecting block 1, the moving device 3 is installed at the outer end of the material placing device 2, and the laying device 4 is installed at the upper end of the connecting block 1; wherein:
blowing device 2 includes bracing piece 21, adjustment mechanism 22 and chucking mechanism 23, 1 side of connecting block evenly installs bracing piece 21 along length direction, bracing piece 21 outside slidable mounting has adjustment mechanism 22, chucking mechanism 23 is installed to the symmetry around adjustment mechanism 22 middle part, concrete during operation, through the position of manual adjustment mechanism 22 on bracing piece 21, make adjustment mechanism 22 adjust the distance of mating formation between the framework of steel reinforcement, and through manual adjustment chucking mechanism 23 position, make chucking mechanism 23 adjust the installation distance between framework of steel reinforcement and the bridge floor, thereby make things convenient for machinery to mat formation to framework of steel reinforcement.
The adjusting mechanism 22 comprises an adjusting sleeve 221, a T-shaped block 222, a locking screw 223, a connecting rod 224, a fixing rod 225, a sliding sleeve 226 and a feeding plate 227, the adjusting sleeve 221 is slidably mounted in the middle of the supporting rod 21, the T-shaped block 222 is arranged at the upper end of the inner side of the adjusting sleeve 221, the T-shaped block 222 is slidably mounted inside the supporting rod 21, the locking screw 223 is slidably arranged at the upper end of the adjusting sleeve 221, the lower end of the locking screw 223 is connected with the T-shaped block 222 in a threaded connection mode, the adjusting sleeve 221 is connected with the connecting rod 224, the fixing rod 225 is mounted at the lower end of the adjusting sleeve 221, the sliding sleeve 226 is slidably mounted at the lower end of the fixing rod 225, the feeding plate 227 is mounted at the lower end of the sliding sleeve 226, during specific work, the supporting rod 21 is separated from the T-shaped block 222 by manually rotating the locking screw 223, the position of the adjusting sleeve 221 outside the supporting rod 21 is adjusted, the distance between the feeding plates 227 is adjusted, and after the distance between the feeding plates 227 is adjusted, the feeding plates 227 are manually and reversely rotated, so that the adjusting sleeve 221 is locked and fixed on the outside of the reinforcing steel bar framework with different lengths.
The T-shaped groove has been seted up at bracing piece 21 upper end middle part, and T-shaped piece 222 slidable mounting is at the T-shaped inslot, and T-shaped piece 222 middle part is provided with the screw hole, and locking screw 223 lower extreme passes through the mode of screw-thread fit and installs in the screw hole, and the T-shaped groove plays the spacing effect of direction through T-shaped piece 222 to adjusting sleeve 221, and through the cooperation between locking screw 223 and the screw hole to make locking screw 223 fix adjusting sleeve 221 locking in the bracing piece 21 outside.
Go up flitch 227 inboard and be provided with the electro-magnet, and go up flitch 227 lower extreme and evenly be provided with the draw-in groove backward in the past, the electro-magnet makes things convenient for go up flitch 227 and inhales tightly fixed with framework of steel reinforcement, and the draw-in groove conveniently places framework of steel reinforcement at last flitch 227 downside.
Be located the front side and be located the rear side dead lever 225 is from last down evenly being provided with the chucking hole, and chucking rod 232 is downthehole through the mode card income chucking of joint, and chucking rod 232 is downthehole in the different positions chucking of inner card income to flitch 227 position in the quick adjustment.
The mobile device 3 comprises a fixing plate 31, a vertical rod 32, a mounting frame 33, rollers 34 and a crawler 35, the fixing plate 31 is installed at the outer end of the supporting rod 21, the vertical rod 32 is evenly installed at the lower end of the fixing plate 31 from the front to the back, the mounting frame 33 is installed at the lower end of the vertical rod 32, the rollers 34 are installed on the inner side of the mounting frame 33 through pin shafts, the rollers 34 are connected through the crawler 35, and during specific work, manual pushing equipment is used for driving the rollers 34 to drive the crawler 35 to rotate, so that the equipment is manually moved to a construction position.
Laying device 4 includes lifting mechanism 41 and fixed establishment 42, and lifting mechanism 41 is installed to 1 upper end of connecting block, and fixing mechanism 42 is installed to lifting mechanism 41 lower extreme, and fixed establishment 42 sets up at 1 lower extreme of connecting block, and concrete during operation, the bridge expansion joint of waiting to mat formation is placed on fixed establishment 42 through the manual work for fixed establishment 42 presss from both sides tightly it fixedly, and the bridge expansion joint presss from both sides tightly fixed back, drives fixed establishment 42 through lifting mechanism 41 and removes, thereby makes fixed establishment 42 place the installation to the bridge expansion joint.
The hoisting mechanism 41 comprises a supporting block 411, a hoisting motor 412, side plates 413, a winding drum 414, a steel wire rope 415 and a reversing wheel 416, the supporting block 411 is installed in the middle of the upper end of the connecting block 1, the hoisting motor 412 is installed at the upper end of the supporting block 411, the side plates 413 are arranged on the left side of the supporting block 411, the winding drum 414 is installed between the side plates 413 through bearings, the output end of the hoisting motor 412 is connected with the winding drum 414 through a coupler, the steel wire rope 415 is wound on the outer side of the winding drum 414, the reversing wheels 416 are symmetrically installed in the front and back of the upper end of the connecting block 1, the steel wire rope 415 bypasses the reversing wheel 416 from the right end and penetrates through the connecting block 1 to be connected with the fixing mechanism 42, and when the bridge expansion joint is clamped and fixed by the fixing mechanism 42, the winding drum 414 is driven to rotate through the hoisting motor 412, so that the winding drum 414 loosens the steel wire rope 415, the steel wire rope 415 is driven to descend the fixing mechanism 42 after being reversed by the reversing wheel 416, and the bridge expansion joint to be paved is hoisted to the position to be installed.
A groove is formed in the outer side of the reversing wheel 416, the steel wire rope 415 is arranged in the groove, and the groove has a limiting effect on the steel wire rope 415 to prevent the steel wire rope 415 from being separated from the reversing wheel 416.
The fixing mechanism 42 comprises a transverse plate 421, a guide rod 422, a fixed clamping block 423, a rotary screw rod 424, a sliding clamping block 425, a dovetail block 426 and a locking nut 427, the transverse plate 421 is installed at the lower end of the steel wire rope 415, the guide rods 422 are symmetrically installed at the front and back of the upper end of the transverse plate 421, the fixed clamping blocks 423 are installed at four corners of the lower end of the transverse plate 421, the rotary screw rod 424 is installed at the upper side of the outer end of the fixed clamping block 423 in a threaded connection mode, the sliding clamping block 425 is installed at the inner end of the rotary screw rod 424 through a bearing, yan Weikuai is symmetrically installed at the front and back of the sliding clamping block 425 in a front and back mode, the dovetail block 426 is installed in the sliding clamping block 423 in a sliding mode, the locking nut 427 is installed at the middle of the rotary screw rod 424 in a threaded fit mode, during specific work, the bridge expansion joint to be installed is placed between the fixed clamping block 423 and the sliding clamping block 425 through manpower, the rotary screw rod 424 is manually rotated, the rotary screw rod 424 drives the sliding clamping block 425 to drive the sliding clamping block 425 and the sliding clamping block 425 to move along the fixed clamping block 423, the fixed clamping block 423 is fixed clamping block and the fixed clamping block 425 through the sliding screw rod 424, and the sliding clamping block 424, and the fixed clamping block is prevented from rotating screw rod 424.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made without departing from the spirit and scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (7)
1. A bridge expansion joint installation construction method is characterized in that: the specific installation and construction method comprises the following steps:
s1, equipment inspection: before the bridge expansion joint installation equipment is started to install the bridge expansion joint, the bridge expansion joint is checked;
s2, feeding treatment: after the equipment inspection is finished, the expansion joint of the bridge to be laid is locked and fixed at the lower end of the laying device (4) by manpower, and the reinforcement cage to be laid is clamped and fixed by the discharging device (2);
s3, paving: after the feeding is finished, manually moving the equipment to a construction position, manually laying the steel reinforcement framework by the laying device (2), and then hoisting the bridge expansion joint to an installation position by the laying device (4) for installation;
s4, pouring treatment: after the reinforcing steel bar framework and the bridge expansion joint are paved, pouring concrete on the paved reinforcing steel bar framework and the bridge expansion joint in a manual or mechanical mode;
s5, drying and quality inspection: after the concrete is poured, naturally drying the concrete, and after the concrete is dried, manually carrying out quality inspection treatment on the installed bridge expansion joint;
in the process of installing and constructing the bridge expansion joint in the steps S1-S5, bridge expansion joint installation equipment is adopted to install and construct the bridge expansion joint, the equipment specifically comprises a connecting block (1), a material placing device (2), a moving device (3) and a laying device (4), the material placing devices (2) are symmetrically installed on the left and right sides of the connecting block (1), the moving device (3) is installed at the outer end of the material placing device (2), and the laying device (4) is installed at the upper end of the connecting block (1); wherein:
the discharging device (2) comprises a supporting rod (21), an adjusting mechanism (22) and a clamping mechanism (23), the supporting rod (21) is uniformly arranged on the side edge of the connecting block (1) along the length direction, the adjusting mechanism (22) is slidably arranged on the outer side of the supporting rod (21), and the clamping mechanism (23) is symmetrically arranged in the middle of the adjusting mechanism (22) front and back;
the adjusting mechanism (22) comprises an adjusting sleeve (221), a T-shaped block (222), a locking screw (223), a connecting rod (224), a fixing rod (225), a sliding sleeve (226) and an upper material plate (227), the adjusting sleeve (221) is slidably mounted in the middle of the supporting rod (21), the T-shaped block (222) is arranged at the upper end of the inner side of the adjusting sleeve (221), the T-shaped block (222) is slidably mounted inside the supporting rod (21), the locking screw (223) is slidably arranged at the upper end of the adjusting sleeve (221), the lower end of the locking screw (223) is connected with the T-shaped block (222) in a threaded connection mode, the adjusting sleeves (221) are connected through the connecting rod (224), the fixing rod (225) is mounted at the lower end of the adjusting sleeve (221), the sliding sleeve (226) is slidably mounted at the lower end of the fixing rod (225), and the upper material plate (227) is mounted at the lower end of the sliding sleeve (226);
the laying device (4) comprises a hoisting mechanism (41) and a fixing mechanism (42), the hoisting mechanism (41) is installed at the upper end of the connecting block (1), the fixing mechanism (42) is installed at the lower end of the hoisting mechanism (41), and the fixing mechanism (42) is arranged at the lower end of the connecting block (1);
the hoisting mechanism (41) comprises a supporting block (411), a hoisting motor (412), side plates (413), a winding drum (414), a steel wire rope (415) and a reversing wheel (416), the supporting block (411) is installed in the middle of the upper end of the connecting block (1), the hoisting motor (412) is installed at the upper end of the supporting block (411), the side plates (413) are arranged on the left side of the supporting block (411), the winding drum (414) is installed between the side plates (413) through a bearing, the output end of the hoisting motor (412) is connected with the winding drum (414) through a coupler, the steel wire rope (415) is wound on the outer side of the winding drum (414), the reversing wheel (416) is symmetrically installed at the upper end of the connecting block (1) in the front-back direction, and the steel wire rope (415) bypasses the reversing wheel (416) from the right end and penetrates through the connecting block (1) to be connected with the fixing mechanism (42);
the fixing mechanism (42) comprises a transverse plate (421), guide rods (422), a fixing clamp block (423), a rotating screw rod (424), a sliding clamp block (425), a dovetail block (426) and a locking nut (427), the transverse plate (421) is installed at the lower end of the steel wire rope (415), the guide rods (422) are symmetrically installed at the front and back of the upper end of the transverse plate (421), the upper side of the guide rods (422) is slidably installed in the connecting block (1), the fixing clamp blocks (423) are installed at four corners of the lower end of the transverse plate (421), the rotating screw rod (424) is installed at the upper side of the outer end of each fixing clamp block (423) in a threaded connection mode, the sliding clamp block (425) is installed at the inner end of each rotating screw rod (424) through a bearing, yan Weikuai (426) is symmetrically installed at the front and back of each sliding clamp block (425), the dovetail block (426) is slidably installed in the fixing clamp blocks (423), and the locking nut (427) is installed in the middle of each rotating screw rod (424) in a threaded fit mode;
go up flitch (227) inboard and be provided with the electro-magnet, and go up flitch (227) lower extreme and evenly be provided with the draw-in groove from the past backward.
2. The method for installing and constructing the bridge expansion joint according to claim 1, wherein: the mobile device (3) comprises a fixing plate (31), a vertical rod (32), an installation frame (33), rollers (34) and a crawler belt (35), the fixing plate (31) is installed at the outer end of the supporting rod (21), the vertical rod (32) is evenly installed at the lower end of the fixing plate (31) from front to back, the installation frame (33) is installed at the lower end of the vertical rod (32), the rollers (34) are installed on the inner side of the installation frame (33) through pin shafts, and the rollers (34) are connected through the crawler belt (35).
3. The method for installing and constructing the bridge expansion joint according to claim 1, wherein: chucking mechanism (23) include U-shaped board (231), chucking pole (232) and chucking spring (233), are located the front side and all install U-shaped board (231) with sliding sleeve (226) upside that is located the rear side, and U-shaped board (231) middle part slidable mounting has chucking pole (232), and chucking pole (232) middle part cover is equipped with chucking spring (233), and chucking spring (233) set up in U-shaped board (231) inboardly.
4. The installation and construction method for the bridge expansion joint according to claim 1, characterized in that: the middle part of the upper end of the support rod (21) is provided with a T-shaped groove, the T-shaped block (222) is slidably arranged in the T-shaped groove, the middle part of the T-shaped block (222) is provided with a threaded hole, and the lower end of the locking screw rod (223) is arranged in the threaded hole in a thread fit mode.
5. The method for installing and constructing the bridge expansion joint according to claim 1, wherein: a groove is formed in the outer side of the reversing wheel (416), and the steel wire rope (415) is arranged in the groove.
6. The method for installing and constructing the bridge expansion joint according to claim 1, wherein: the middle part of the fixed clamping block (423) is provided with a rectangular groove, the sliding clamping block (425) is slidably mounted in the rectangular groove, dovetail grooves are symmetrically formed in the front and back of the rectangular groove, the dovetail block (426) is slidably mounted in the dovetail grooves, and the working surfaces of the fixed clamping block (423) and the sliding clamping block (425) are provided with sawtooth-shaped structures.
7. The method for installing and constructing the bridge expansion joint according to claim 3, wherein: the fixing rod (225) is located on the front side and the rear side, clamping holes are uniformly formed in the fixing rod from top to bottom, and the inner end of the clamping rod (232) is clamped into the clamping holes in a clamping mode.
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| CN202110203055.2A CN112854003B (en) | 2021-02-23 | 2021-02-23 | Bridge expansion joint installation construction method |
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| CN202110203055.2A CN112854003B (en) | 2021-02-23 | 2021-02-23 | Bridge expansion joint installation construction method |
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| CN112854003B true CN112854003B (en) | 2022-11-15 |
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| JP2007136575A (en) * | 2005-11-16 | 2007-06-07 | Kazumasa Matsuura | Cutting device and cutting method |
| CN205256477U (en) * | 2015-12-30 | 2016-05-25 | 中铁十二局集团有限公司 | Bridge expansion joint installation conveyer |
| CN206667042U (en) * | 2017-03-22 | 2017-11-24 | 中铁六局集团有限公司 | Bridge expanssion joint installation and adjustment instrument |
| CN208023404U (en) * | 2018-03-12 | 2018-10-30 | 秘向博 | A kind of bridge expanssion joint installation and adjustment tool |
| CN110424224B (en) * | 2019-07-19 | 2021-01-15 | 杭州江润科技有限公司 | Construction method of curb |
| CN211171598U (en) * | 2019-11-12 | 2020-08-04 | 中冶建工集团有限公司 | Installation positioning device for bridge expansion joint steel reinforcement framework |
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Effective date of registration: 20221026 Address after: 712000 Yingbin Road, Weicheng District, Xianyang City, Shaanxi Province Applicant after: CHINA RAILWAY 21ST BUREAU GROUP THE 3RD ENGINEERING Co.,Ltd. Address before: 225007 No.2 Youyi Road, Yangzhou City, Jiangsu Province Applicant before: Xu Juan |
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