CN111979910A - Shock-absorbing noise-reducing telescopic device and method for mounting and replacing same and reconstructing existing telescopic device - Google Patents
Shock-absorbing noise-reducing telescopic device and method for mounting and replacing same and reconstructing existing telescopic device Download PDFInfo
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- CN111979910A CN111979910A CN202010925583.4A CN202010925583A CN111979910A CN 111979910 A CN111979910 A CN 111979910A CN 202010925583 A CN202010925583 A CN 202010925583A CN 111979910 A CN111979910 A CN 111979910A
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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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- 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
- E01D19/065—Joints having sliding plates
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Abstract
The invention belongs to the technical field of telescopic devices and methods for installing, replacing or reforming the existing telescopic devices, and discloses a damping and noise-reducing telescopic device and a method for installing, replacing and reforming the existing telescopic device. The main technical characteristics are as follows: including anchor mechanism, shaped steel, waterstop and fixed fishback, slip fishback, shock attenuation offset plate and the stainless steel slide that has the die cavity, slip fishback and fixed fishback pass through fixing bolt to be fixed on the roof beam body fixed fishback and the relative one side of slip fishback are provided with criss-cross broach slip fishback and the relative one side of fixed fishback form the broach crossing district, the central line and the crossing certain angle of horizontal bridge in broach crossing district, two sides and horizontal bridge in the horizontal bridge direction of broach are perpendicular, the direction of shaped steel axis with the crossing certain angle of central line in broach crossing district, prolonged the life of bridge, expansion joint and tire, reduced the noise.
Description
Technical Field
The invention belongs to the technical field of telescopic devices and mounting and replacing methods, and particularly relates to a damping and noise-reducing telescopic device and a method for mounting and replacing the same and reconstructing an existing telescopic device.
Background
The bridge expansion device is an important component of a bridge, and has the main functions of meeting the requirement of the beam end on the displacement in all directions and preventing water from corroding the beam end and a lower structure, and the quality and the performance of the bridge expansion device directly influence the durability of the whole bridge.
The telescoping device of rubber waterstop that uses at present includes anchor mechanism, the shaped steel that has the die cavity, waterstop and two relative fishback two the opposite side of fishback is provided with criss-cross broach. The existing telescopic device mainly comprises the following two types:
one, because rivers direction is unanimous with horizontal bridge direction, for reducing the water resistance, the pier direction is unanimous with the rivers direction, therefore shaped steel is fixed at the bridge tip, and the direction of the broach intersection center line of fishback and shaped steel is unanimous with horizontal bridge direction, and this telescoping device has following defect: firstly, because the direction of the center line of the comb tooth crossing area of the comb tooth plate is consistent with the direction of the transverse bridge, the vehicle tire simultaneously moves from the comb tooth plate on one side to the comb tooth plate on the other side, the impact force of the vehicle on a beam body is large, and the service life of the expansion joint is shortened; secondly, the vehicle tire is simultaneously from the fishback of one side to the fishback of opposite side, and the impact force of fishback to the tire is big, has shortened the life of tire.
Secondly, because the water flow direction and the transverse bridge direction are intersected to form a certain included angle, in order to reduce water resistance, the pier direction is consistent with the water flow direction, the side surface of the pier and the transverse bridge direction form a certain included angle, so that the adjacent bridge end surface is an inclined surface which is intersected with the transverse bridge direction to form a certain angle, the section steel is fixed at the end part of the bridge, the directions of the center line of the comb tooth crossing area of the comb tooth plate and the axis of the section steel are the same, and the directions of the center line of the comb tooth crossing area of the comb tooth plate and the axis of the section; the telescopic device is limited by natural conditions, has poor adaptability and is not easy to popularize.
Disclosure of Invention
The invention aims to solve the first technical problem of providing a shock-absorbing noise-reducing telescopic device which is convenient to install and replace, small in impact force of a vehicle on a beam body, low in noise, small in impact force of a bridge body on vehicle tires, and capable of prolonging the service life of the telescopic device and the vehicle tires.
In order to solve the problems, the damping and noise-reducing telescopic device adopts the technical scheme that: including anchor mechanism, shaped steel, waterstop and fixed fishback, slip fishback, shock attenuation offset plate and the stainless steel slide that has the die cavity, slip fishback and fixed fishback pass through fixing bolt to be fixed on the roof beam body fixed fishback and the relative one side of slip fishback are provided with criss-cross broach slip fishback and the relative one side of fixed fishback form the broach crossing district, the central line and the crossing certain angle of horizontal bridge in broach crossing district, two sides and horizontal bridge in the horizontal bridge direction of broach are perpendicular, the direction of shaped steel axis with the crossing certain angle of central line in broach crossing district.
The additional technical characteristics are as follows:
the direction of the axis of the section steel is the same as the direction of the transverse bridge;
the included angle between the central line of the comb tooth crossing area and the transverse bridge direction is 5-50 degrees;
a water chute along the bridge direction is arranged below the sliding comb plate;
a block is arranged at the front end of the water chute;
the profile steel is close to the lower half part of the pavement layer of the bridge.
The second technical problem to be solved by the invention is the installation method of the damping and noise-reducing telescopic device.
In order to solve the problems, the mounting method of the shock absorption and noise reduction telescopic device adopts the technical scheme that:
the method comprises the following steps:
first, the section steel is installed
Cutting asphalt concrete of a pavement layer along the left side and the right side of a central line of a beam joint, excavating and cleaning sundries, placing section steel at an installation position, adjusting the central line of the section steel to be coincident with the central line of a gap at a beam end, enabling the elevation of the top surface of the section steel to reach a designed elevation, determining the distance between the section steel according to the gap at the beam end, penetrating and placing horizontal connecting reinforcing steel bars, and firmly welding the section steel and embedded ribs of a beam body;
second, both ends of the section steel are plugged
The expansion joint gap is blocked by a foam plate, and a beam end template is installed to prevent mortar from flowing into the section steel;
thirdly, pre-installing a fixed comb plate and a sliding comb plate
Pre-arranging the center line direction of the crossing area of the comb teeth of the sliding comb plate and the fixed comb plate and the direction crossing the bridge at a certain angle according to the designed length, wherein two side edges of the comb teeth in the transverse bridge direction are vertical to the transverse bridge direction, arranging and then coding a serial number, screwing a bolt, welding a penetrating rib and a screw rod, arranging the position, screwing off a nut, putting the welded reinforcement cage into a notch, and welding the reinforcement cage with the embedded rib;
fourthly, pouring
Welding a reinforcement cage and the embedded ribs, mounting a template, blowing the groove by using an air compressor, and winding the exposed screw by using an adhesive tape;
fifthly, installing a water stop
Installing a water stop in a cavity of the section steel;
sixthly, installing a damping rubber plate and a stainless steel sliding plate, and installing a sliding comb plate and a fixed comb plate
Firstly, mounting a damping rubber plate and a stainless steel sliding plate, positioning and leveling a sliding comb plate and a fixed comb plate before mounting, then fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, then hoisting to enable bolt holes of the comb plate to be consistent with pre-buried bolts in a matched mode, and then enabling the sliding comb plate to freely slide and stretch;
seventh step, maintenance
After the construction is completed, the concrete is watered and maintained, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and between the fixed comb plate and the road surface.
The third technical problem solved by the invention is to use the damping and noise-reducing telescopic device to replace the existing telescopic device.
In order to solve the problems, the technical scheme adopted by the replacement method of the damping and noise-reducing telescopic device is as follows:
the method comprises the following steps:
firstly, the sliding comb plate, the fixed comb plate, the stainless steel sliding plate and the damping rubber plate are disassembled
Screwing down nuts on fastening bolts on the original sliding comb plate and the original fixed comb plate, and detaching the old sliding comb plate, the old fixed comb plate, the old stainless steel sliding plate and the old damping rubber plate;
second, the water stop is dismounted
Taking out the fixed end part of the old water stop belt from the cavity of the section steel;
thirdly, taking down the old section steel
Mashing asphalt concrete of an original pavement layer, cutting horizontal connecting reinforcing steel bars fixed with old section steel, and taking down the old section steel;
fourthly, installing the novel steel
Cleaning sundries, placing novel steel at an installation position, adjusting the center line of the novel steel to be coincident with the center line of a beam end gap, enabling the top surface elevation to reach the design elevation, determining the novel steel space according to the beam end gap, penetrating and placing transverse connecting horizontal reinforcing steel bars, and firmly welding the novel steel and the beam body embedded reinforcing steel bars;
fifthly, plugging the two ends of the novel steel
The expansion joint gap is blocked by a foam plate, and a beam end template is installed to prevent mortar from flowing into the section steel;
sixthly, pre-installing new fixed comb plate and new sliding comb plate
Pre-arranging the center line of the crossing area of the comb teeth of the new sliding comb plate and the fixed comb plate and the direction crossing the bridge at a certain angle according to the designed length, wherein two side edges of the comb teeth in the transverse bridge direction are vertical to the transverse bridge direction, arranging and then coding a serial number, screwing a bolt, welding a penetrating rib and a screw rod, arranging the position, unscrewing a nut, putting the welded reinforcement cage into a notch, and welding the welded reinforcement cage with the embedded rib;
seventh, pouring
Welding a reinforcement cage and the embedded ribs, mounting a template, blowing the groove by using an air compressor, and winding the exposed screw by using an adhesive tape;
eighth, installing a new water stop
Installing a new water stop in the cavity of the new section steel;
ninth, installing new damping rubber plate and stainless steel sliding plate, installing sliding comb plate and fixed comb plate
Installing a new damping rubber plate and a stainless steel sliding plate, positioning and leveling a new sliding comb plate and a fixed comb plate before installation, fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, and then hoisting to enable bolt holes of the comb plate to be consistent with pre-buried bolts in a matched mode to enable plate falling to enable seams of the sliding comb plate to slide and stretch freely;
the tenth step of curing
After the construction is completed, the concrete is watered and maintained, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and between the fixed comb plate and the road surface.
The fourth technical problem solved by the invention is a transformation method for the existing telescopic device without replacing the section steel and the water stop belt by using the damping and noise-reducing telescopic device.
In order to solve the problems, the technical scheme adopted by the replacing method of the shock-absorbing noise-reducing telescopic device is as follows:
the method comprises the following steps:
firstly, the sliding comb plate, the fixed comb plate, the stainless steel sliding plate and the damping rubber plate are disassembled
Screwing down nuts on fastening bolts on the original sliding comb plate and the original fixed comb plate, and detaching the old sliding comb plate, the old fixed comb plate, the old stainless steel sliding plate and the old damping rubber plate;
secondly, cleaning sundries and cleaning the road surface according to the shape of the combined sliding comb plate and fixed comb plate
Cleaning the road surface and sundries according to the combined shapes of the stainless steel sliding plate, the damping rubber plate and the sliding comb plate and the fixed comb plate;
thirdly, processing fixing holes on the new sliding comb plate and the fixed comb plate
Pre-arranging the center line of the crossing area of the comb teeth of the new sliding comb plate and the fixed comb plate and the direction along the bridge at a certain angle according to the design length, wherein two side edges of the comb teeth in the transverse bridge direction are vertical to the transverse bridge direction, and processing fixed holes in the positions, corresponding to the fastening bolts, of the new sliding comb plate and the fixed comb plate according to the positions of the fastening bolts;
fourthly, installing new damping rubber plates and stainless steel sliding plates, installing sliding comb plates and fixing comb plates
Installing a new damping rubber plate and a stainless steel sliding plate, positioning and leveling a new sliding comb plate and a fixed comb plate before installation, fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, and then hoisting to enable bolt holes of the comb plate to be consistent with pre-buried bolts in a matched mode to enable plate falling to enable seams of the sliding comb plate to slide and stretch freely;
the fifth step, maintenance
After the construction is finished, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and a gap between the fixed comb plate and the road surface.
Compared with the prior art, the damping and noise-reducing telescopic device provided by the invention has the following advantages: one of the two comb tooth cross sections comprises an anchoring mechanism, section steel with a cavity, a water stop belt, a fixed comb tooth plate, a sliding comb tooth plate, a damping rubber plate and a stainless steel sliding plate, wherein the sliding comb tooth plate and the fixed comb tooth plate are fixed on a beam body through fixing bolts, crossed comb teeth are arranged on one opposite side of the fixed comb tooth plate and the sliding comb tooth plate, a comb tooth cross section is formed on one opposite side of the sliding comb tooth plate and the fixed comb tooth plate, the center line of the comb tooth cross section is crossed with a transverse bridge direction at a certain angle, two side edges of the comb tooth in the transverse bridge direction are perpendicular to the transverse bridge direction, the direction of the axis of the section steel is crossed with the center line of the comb tooth cross section at a certain angle, for piers in any direction, the direction of the center line of the comb tooth cross section at the opposite positions of the two comb tooth plates is crossed with the transverse bridge direction at a certain angle, and the stretching direction of the comb, when a vehicle along the direction of the bridge passes through the comb tooth crossing area, the coaxial wheels of the vehicle do not pass through the comb tooth crossing area at the same time, but pass through the comb tooth crossing area successively, so that the impact force on the bridge and the expansion device is greatly reduced, the service life of the bridge and the expansion joint is prolonged, the noise generated by the impact of the wheels on the comb plate is reduced, the impact force of the comb plate on the tire of the wheel is also avoided, and the service life of the tire is prolonged; secondly, because the direction of the axis of the profile steel is the same as the direction of the transverse bridge, for most bridges, the direction of the axis of the profile steel is the same as the direction of the transverse bridge, at the moment, the center line direction of the comb tooth crossing area at the opposite position of the two comb tooth plates is intersected with the direction of the transverse bridge at a certain angle, when a vehicle along the direction of the bridge passes through the comb tooth crossing area, the wheels coaxial with the vehicle do not simultaneously pass through the comb tooth crossing area, but sequentially pass through the comb tooth crossing area, and the service lives of the bridge, the expansion joint and the tire are prolonged; thirdly, the included angle between the central line of the crossing area of the comb teeth and the transverse direction of the bridge is 5-50 degrees; the impact of the vehicle on the bridge and the expansion joint is reduced, and the whole expansion device can be freely expanded and contracted; fourthly, a water chute along the bridge direction is arranged below the sliding comb plate; rainwater between the cross areas of the comb teeth can enter the water stop belts between the section steels through the water guide grooves and be guided out, so that the corrosion of the rainwater to the beam body is avoided; fifthly, as the front end of the water chute is provided with the plugging block, the plugging block can be plugged at the front end of the water chute at ordinary times, rainwater flows away from the bridge floor, when a problem occurs in a bridge floor water flowing system or water needs to be drained through the water chute, the plugging block can be moved away from the front end of the water chute, rainwater between the cross areas of the comb teeth can enter the water stop belts between the section steels through the water chute to be led out, and the corrosion of the rainwater to the beam body is avoided; sixthly, because the section steel is close to the lower half part of the pavement layer of the bridge, the sunlight with ultraviolet rays is prevented from irradiating the waterstop through the gap between the comb tooth crossing areas, and the service life of the waterstop is prolonged.
Drawings
FIG. 1 is a schematic structural view of a shock-absorbing noise-reducing telescopic device according to the present invention;
FIG. 2 is a cross-sectional view taken along line A-A of the shock absorbing and noise reducing extension and retraction apparatus of FIG. 1;
fig. 3 is a schematic structural view of a sliding comb plate and a fixed comb plate;
FIG. 4 is a top view of a bridge deck using the damping and noise-reducing telescopic device;
fig. 5 is a schematic structural view of a sliding comb plate with a water chute;
FIG. 6 is a cross-sectional view B-B of the shock absorbing and noise reducing telescoping device of FIG. 5;
FIG. 7 is an enlarged view taken at I in FIG. 6;
FIG. 8 is a sectional view of the shock-absorbing noise-reducing expansion device with section steel at the lower end of the bridge pavement layer.
Detailed Description
The structure and the application principle of the telescopic device for shock absorption and noise reduction according to the present invention will be further described in detail with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, fig. 2, fig. 3 and fig. 4, the shock-absorbing noise-reducing expansion device of the present invention has a schematic structural diagram, and the shock-absorbing noise-reducing expansion device of the present invention includes an anchoring mechanism 1, a section steel 3 with a cavity 2, a water stop 4, a fixed comb plate 5, a sliding comb plate 6, a shock-absorbing rubber plate 14 and a stainless steel slide plate 15, the sliding comb plate 6 and the fixed comb plate 5 are fixed on a beam body 8 by fixing bolts 7, crossed comb teeth 9 are provided on opposite sides of the fixed comb plate 5 and the sliding comb plate 6, a comb tooth crossing area 10 is formed on opposite sides of the sliding comb plate 6 and the fixed comb plate 5, and a center line of the comb tooth crossing area 10 intersects with a transverse bridge direction at a certain angle. That is, the comb-crossing area 10 is a parallelogram in which two sides in the direction along the bridge intersect with the transverse bridge at a certain angle. Two sides of the comb teeth 9 in the transverse bridge direction are perpendicular to the transverse bridge direction, and the axis direction of the section steel 3 intersects with the central line of the comb tooth intersection area 10 at a certain angle.
By using the shock-absorbing noise-reducing expansion device, for piers in any direction, the direction of the central line of the comb tooth crossing area 10 at the opposite position of the two comb tooth plates can be intersected with the direction of a transverse bridge to form a certain angle, the expansion direction of the sliding comb tooth plate 6 and the fixed comb tooth plate 5 is the same as the direction along the bridge, when a vehicle along the direction along the bridge passes through the comb tooth crossing area 10, the coaxial wheels of the vehicle do not pass through the comb tooth crossing area 10 at the same time, but pass through the comb tooth crossing area 10 successively, the impact force on the bridge and the expansion device is greatly reduced, the service life of the bridge and the expansion joint is prolonged, the noise generated by the impact of the wheels on the comb tooth plates is reduced, the impact force of the comb tooth plates on the tires is also avoided, and the service life of the.
The direction of 3 axes of shaped steel is the same with horizontal bridge to the direction, and to most bridges, shaped steel axis direction is the same with horizontal bridge to the direction, and this moment, the direction of the broach intersection district of two opposite department of fishback intersects with horizontal bridge direction and becomes certain angle, and when the vehicle along the bridge direction passes through the broach intersection district, the coaxial wheel of vehicle does not pass through broach intersection district 10 simultaneously, but passes through the broach intersection district successively, has prolonged the life of bridge, expansion joint and tire.
The included angle between the central line of the comb tooth crossing area 10 and the transverse bridge direction is 5-50 degrees; the impact of the vehicle on the bridge and the expansion joint is reduced, and the whole expansion device can be freely expanded and contracted.
As shown in fig. 5, 6 and 7, a water chute 11 is arranged under the sliding comb plate 6 along the bridge direction; rainwater between the comb tooth crossing areas 10 can enter the water stop belts 4 between the section steels 3 through the water guide grooves 11 to be guided out, and the corrosion of the rainwater to the beam body is avoided.
The front end of the water chute 11 is provided with the plugging block 12, the plugging block can be plugged at the front end of the water chute at ordinary times, rainwater flows away from the bridge floor, when a problem occurs in a bridge floor water flowing system or water needs to be drained through the water chute, the plugging block can be moved away from the front end of the water chute, rainwater between the comb tooth crossing areas can enter the water stop belts between the section steel through the water chute to be led out, and the corrosion of the rainwater to the beam body is avoided.
As shown in figure 8, the section steel 3 is close to the lower half part of the paving layer 13 of the bridge, so that the sunlight with ultraviolet rays is prevented from penetrating through gaps between the comb tooth crossing areas and irradiating the water stop 4, and the service life of the water stop 4 is prolonged.
The mounting method of the damping and noise-reducing telescopic device adopts the technical scheme that:
the method comprises the following steps:
first, the section steel is installed
Cutting asphalt concrete of a pavement layer along the left side and the right side of a central line of a beam joint, excavating and cleaning sundries, placing section steel at an installation position, adjusting the central line of the section steel to be coincident with the central line of a gap at a beam end, enabling the elevation of the top surface of the section steel to reach a designed elevation, determining the distance between the section steel according to the gap at the beam end, penetrating and placing horizontal connecting reinforcing steel bars, and firmly welding the section steel 3 and the beam body embedded reinforcing steel bars 14;
second, both ends of the section steel are plugged
The expansion joint gap is blocked by a foam plate, and a beam end template is installed to prevent mortar from flowing into the section steel 3;
thirdly, pre-installing a fixed comb plate and a sliding comb plate
Pre-arranging the center line direction of a comb tooth crossing area 10 of the sliding comb plate 6 and the fixed comb plate 5 and the direction along the bridge in a certain angle, wherein the center line direction is intersected with the direction along the bridge, the two side edges in the transverse bridge direction of the comb teeth are vertical to the transverse bridge direction, after arranging, serial numbers are arranged, bolts are screwed, a penetrating rib is welded with the screw 7, the position is well installed, nuts are screwed off, welded reinforcement cages are placed in the notches and welded with the embedded ribs;
fourthly, pouring
Welding a reinforcement cage and the embedded ribs, mounting a template, blowing the groove by using an air compressor, and winding the exposed screw by using an adhesive tape;
fifthly, installing a water stop
Installing a water stop 4 in the cavity 2 of the section steel 3;
sixthly, installing a damping rubber plate and a stainless steel sliding plate, and installing a sliding comb plate and a fixed comb plate
Firstly installing a damping rubber plate 14 and a stainless steel sliding plate 15, positioning and leveling a sliding comb plate 6 and a fixed comb plate 5 before installation, then fixing the sliding comb plate 6 and the fixed comb plate 5 into a whole by using a fixing clamp to enable the sliding comb plate to be flat without staggered teeth and raised teeth, then hoisting to enable bolt holes of the comb plate to be consistent with pre-buried bolts in a matched mode, and enabling the sliding comb plate 6 to freely slide and stretch;
seventh step, maintenance
After the construction is completed, the concrete is watered and maintained, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and between the fixed comb plate and the road surface.
The method for replacing the existing telescopic device or replacing the old damping and noise reducing telescopic device by using the new damping and noise reducing telescopic device adopts the technical scheme that:
the method comprises the following steps:
firstly, the sliding comb plate, the fixed comb plate, the stainless steel sliding plate and the damping rubber plate are disassembled
Screwing off nuts on fastening bolts 7 on the original sliding comb plate 6 and the original fixed comb plate 5, and detaching the old sliding comb plate 6, the old fixed comb plate 5, the stainless steel sliding plate 15 and the shock absorption rubber plate 14;
second, the water stop is dismounted
Taking out the fixed end part of the old water stop 4 from the cavity 2 of the section steel 3;
thirdly, taking down the old section steel
Mashing asphalt concrete of an original pavement layer, cutting horizontal connecting reinforcing steel bars fixed with old section steel, and taking down the old section steel 3;
fourthly, installing the novel steel
Cleaning sundries, placing novel steel at an installation position, adjusting the center line of the novel steel 3 to coincide with the center line of a beam end gap, enabling the top surface elevation to reach a design elevation, determining the novel steel space according to the beam end gap, penetrating and placing transverse connecting horizontal reinforcing steel bars, and firmly welding the novel steel 3 and beam body embedded bars;
fifthly, plugging the two ends of the novel steel
The expansion joint gap is blocked by a foam plate, and a beam end template is installed to prevent mortar from flowing into the section steel;
sixthly, pre-installing new fixed comb plate and new sliding comb plate
Pre-arranging the center line of a comb tooth crossing area 10 of a new sliding comb plate 6 and a fixed comb plate 5 in a certain angle direction crossed with the direction along the bridge according to the design length, arranging two side edges of the comb teeth 9 in the transverse bridge direction perpendicular to the transverse bridge direction, arranging, then arranging, then arranging a serial number, screwing a bolt, welding a penetrating rib and a screw rod, arranging a position, screwing off a nut, putting a welded reinforcement cage into a notch, and welding the welded reinforcement cage with an embedded rib;
seventh, pouring
Welding a reinforcement cage and the embedded ribs, mounting a template, blowing the groove by using an air compressor, and winding the exposed screw by using an adhesive tape;
eighth, installing a new water stop
Installing a new water stop in the cavity of the new section steel;
ninth, installing new damping rubber plate and stainless steel sliding plate, installing sliding comb plate and fixed comb plate
Installing a new damping rubber plate 14 and a stainless steel sliding plate 15, positioning and leveling a new sliding comb plate 6 and a fixed comb plate 5 before installation, fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, then hoisting to enable a tooth plate bolt hole to be consistent with a pre-buried bolt in a matched mode, and enabling a sliding tooth plate seam to slide and stretch freely;
the tenth step of curing
After the construction is completed, the concrete is watered and maintained, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and between the fixed comb plate and the road surface.
For the expansion device with the center line direction of the existing comb tooth crossing area 10 consistent with the direction along the bridge, only the existing expansion device needs to be modified under the condition that the section steel and the water stop belt do not need to be replaced.
The method for modifying comprises the following steps:
firstly, the sliding comb plate, the fixed comb plate, the stainless steel sliding plate and the damping rubber plate are disassembled
Screwing off nuts on fastening bolts on the original sliding comb plate 6 and the original fixed comb plate 5, and detaching the old sliding comb plate 6, the old fixed comb plate 5, the stainless steel sliding plate 15 and the shock absorption rubber plate 14;
secondly, cleaning sundries and cleaning the road surface according to the shape of the combined sliding comb plate and fixed comb plate
Cleaning the road surface and sundries according to the shape of the combined stainless steel sliding plate 15, the damping rubber plate 14, the sliding comb plate 6 and the fixed comb plate 5;
thirdly, processing fixing holes on the new sliding comb plate and the fixed comb plate
Pre-arranging the center line of a comb tooth crossing area 10 of the new sliding comb plate 6 and the fixed comb plate 5, which intersects with the direction along the bridge at a certain angle, according to the design length, wherein two side edges of the comb teeth in the transverse bridge direction are vertical to the transverse bridge direction, and processing fixing holes at the positions, corresponding to the fastening bolts, on the new sliding comb plate and the fixed comb plate according to the positions of the fastening bolts;
fourthly, installing new damping rubber plates and stainless steel sliding plates, installing sliding comb plates and fixing comb plates
Installing a new damping rubber plate 14 and a stainless steel sliding plate 15, positioning and leveling a new sliding comb plate 6 and a fixed comb plate 5 before installation, fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, then hoisting to enable a tooth plate bolt hole to be consistent with a pre-buried bolt in a matched mode, and enabling a sliding tooth plate seam to slide and stretch freely;
the fifth step, maintenance
After the construction is finished, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and a gap between the fixed comb plate and the road surface.
The protection scope of the present invention is not limited to the above embodiments, and it falls within the protection scope of the present invention as long as the structure is the same as or similar to the structure of the vibration/noise reduction telescopic device of the present invention, the installation method is the same as or similar to the installation method, the replacement method is the same as or similar to the replacement method, and the modification method is the same as or similar to the modification method.
Claims (9)
1. Vibration/noise reduction telescoping device, including anchor mechanism, shaped steel, waterstop and fixed fishback, slip fishback, shock attenuation offset plate and the stainless steel slide that has the die cavity, slip fishback and fixed fishback pass through fixing bolt to be fixed on the roof beam body fixed fishback and the relative one side of slip fishback are provided with crisscross broach slip fishback and the relative one side of fixed fishback form broach intersection district, its characterized in that: the center line of the comb tooth crossing area intersects with the transverse bridge direction at a certain angle, two side edges of the comb tooth in the transverse bridge direction are perpendicular to the transverse bridge direction, and the direction of the profile steel axis intersects with the center line of the comb tooth crossing area at a certain angle.
2. The telescopic shock absorbing and noise reducing device according to claim 1, wherein: the direction of the axis of the section steel is the same as the direction of the transverse bridge.
3. The telescopic shock absorbing and noise reducing device according to claim 1, wherein: the included angle between the central line of the comb tooth crossing area and the transverse bridge direction is 5-50 degrees.
4. The telescopic shock absorbing and noise reducing device according to claim 1, wherein: a water chute along the bridge direction is arranged below the sliding comb plate.
5. A shock absorbing and noise reducing telescopic device according to claim 4, wherein: the front end of the water chute is provided with a block.
6. The telescopic shock absorbing and noise reducing device according to claim 1, wherein: the profile steel is close to the lower half part of the pavement layer of the bridge.
7. A method of installing a shock absorbing and noise reducing telescopic device as claimed in claim 1, 2, 3, 4, 5 or 6, wherein: the method comprises the following steps:
first, the section steel is installed
Cutting asphalt concrete of a pavement layer along the left side and the right side of a central line of a beam joint, excavating and cleaning sundries, placing section steel at an installation position, adjusting the central line of the section steel to be coincident with the central line of a gap at a beam end, enabling the elevation of the top surface of the section steel to reach a designed elevation, determining the distance between the section steel according to the gap at the beam end, penetrating and placing horizontal connecting reinforcing steel bars, and firmly welding the section steel and embedded ribs of a beam body;
second, both ends of the section steel are plugged
The expansion joint gap is blocked by a foam plate, and a beam end template is installed to prevent mortar from flowing into the section steel;
thirdly, pre-installing a fixed comb plate and a sliding comb plate
Pre-arranging the center line direction of the crossing area of the comb teeth of the sliding comb plate and the fixed comb plate and the direction crossing the bridge at a certain angle according to the designed length, wherein two side edges of the comb teeth in the transverse bridge direction are vertical to the transverse bridge direction, arranging and then coding a serial number, screwing a bolt, welding a penetrating rib and a screw rod, arranging the position, screwing off a nut, putting the welded reinforcement cage into a notch, and welding the reinforcement cage with the embedded rib;
fourthly, pouring
Welding a reinforcement cage and the embedded ribs, mounting a template, blowing the groove by using an air compressor, and winding the exposed screw by using an adhesive tape;
fifthly, installing a water stop
Installing a water stop in a cavity of the section steel;
sixthly, installing a damping rubber plate and a stainless steel sliding plate, and installing a sliding comb plate and a fixed comb plate
Firstly, mounting a damping rubber plate and a stainless steel sliding plate, positioning and leveling a sliding comb plate and a fixed comb plate before mounting, then fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, then hoisting to enable bolt holes of the comb plate to be consistent with pre-buried bolts in a matched mode, and then enabling the sliding comb plate to freely slide and stretch;
seventh step, maintenance
After the construction is completed, the concrete is watered and maintained, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and between the fixed comb plate and the road surface.
8. A method of replacing an existing telescopic device with a shock absorbing and noise reducing telescopic device according to claim 1, 2, 3, 4, 5 or 6, wherein: the method comprises the following steps:
firstly, the sliding comb plate, the fixed comb plate, the stainless steel sliding plate and the damping rubber plate are disassembled
Screwing down nuts on fastening bolts on the original sliding comb plate and the original fixed comb plate, and detaching the old sliding comb plate, the old fixed comb plate, the old stainless steel sliding plate and the old damping rubber plate;
second, the water stop is dismounted
Taking out the fixed end part of the old water stop belt from the cavity of the section steel;
thirdly, taking down the old section steel
Mashing asphalt concrete of an original pavement layer, cutting horizontal connecting reinforcing steel bars fixed with old section steel, and taking down the old section steel;
fourthly, installing the novel steel
Cleaning sundries, placing novel steel at an installation position, adjusting the center line of the novel steel to be coincident with the center line of a beam end gap, enabling the top surface elevation to reach the design elevation, determining the novel steel space according to the beam end gap, penetrating and placing transverse connecting horizontal reinforcing steel bars, and firmly welding the novel steel and the beam body embedded reinforcing steel bars;
fifthly, plugging the two ends of the novel steel
The expansion joint gap is blocked by a foam plate, and a beam end template is installed to prevent mortar from flowing into the section steel;
sixthly, pre-installing new fixed comb plate and new sliding comb plate
Pre-arranging the center line of the crossing area of the comb teeth of the new sliding comb plate and the fixed comb plate and the direction crossing the bridge at a certain angle according to the designed length, wherein two side edges of the comb teeth in the transverse bridge direction are vertical to the transverse bridge direction, arranging and then coding a serial number, screwing a bolt, welding a penetrating rib and a screw rod, arranging the position, unscrewing a nut, putting the welded reinforcement cage into a notch, and welding the welded reinforcement cage with the embedded rib;
seventh, pouring
Welding a reinforcement cage and the embedded ribs, mounting a template, blowing the groove by using an air compressor, and winding the exposed screw by using an adhesive tape;
eighth, installing a new water stop
Installing a new water stop in the cavity of the new section steel;
ninth, installing new damping rubber plate and stainless steel sliding plate, installing sliding comb plate and fixed comb plate
Installing a new damping rubber plate and a stainless steel sliding plate, positioning and leveling a new sliding comb plate and a fixed comb plate before installation, fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, and then hoisting to enable bolt holes of the comb plate to be consistent with pre-buried bolts in a matched mode to enable plate falling to enable seams of the sliding comb plate to slide and stretch freely;
the tenth step of curing
After the construction is completed, the concrete is watered and maintained, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and between the fixed comb plate and the road surface.
9. A method of retrofitting an existing telescopic device with a shock absorbing and noise reducing telescopic device according to claim 1, 2, 3, 4, 5 or 6, characterized by: the method comprises the following steps:
firstly, the sliding comb plate, the fixed comb plate, the stainless steel sliding plate and the damping rubber plate are disassembled
Screwing down nuts on fastening bolts on the original sliding comb plate and the original fixed comb plate, and detaching the old sliding comb plate, the old fixed comb plate, the old stainless steel sliding plate and the old damping rubber plate;
secondly, cleaning sundries and cleaning the road surface according to the shape of the combined sliding comb plate and fixed comb plate
Cleaning the road surface and sundries according to the combined shapes of the stainless steel sliding plate, the damping rubber plate and the sliding comb plate and the fixed comb plate;
thirdly, processing fixing holes on the new sliding comb plate and the fixed comb plate
Pre-arranging the center line of the crossing area of the comb teeth of the new sliding comb plate and the fixed comb plate and the direction along the bridge at a certain angle according to the design length, wherein two side edges of the comb teeth in the transverse bridge direction are vertical to the transverse bridge direction, and processing fixed holes in the positions, corresponding to the fastening bolts, of the new sliding comb plate and the fixed comb plate according to the positions of the fastening bolts;
fourthly, installing new damping rubber plates and stainless steel sliding plates, installing sliding comb plates and fixing comb plates
Installing a new damping rubber plate and a stainless steel sliding plate, positioning and leveling a new sliding comb plate and a fixed comb plate before installation, fixing the sliding comb plate and the fixed comb plate into a whole by using a fixing clamp to enable the sliding comb plate and the fixed comb plate to be flat without staggered teeth and raised teeth, and then hoisting to enable bolt holes of the comb plate to be consistent with pre-buried bolts in a matched mode to enable plate falling to enable seams of the sliding comb plate to slide and stretch freely;
the fifth step, maintenance
After the construction is finished, the screw cap is screwed down, epoxy resin is poured into the hole, and a half-groove two-component polysulfide sealant is poured into a gap between the sliding comb plate and the road surface and a gap between the fixed comb plate and the road surface.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010925583.4A CN111979910A (en) | 2020-09-07 | 2020-09-07 | Shock-absorbing noise-reducing telescopic device and method for mounting and replacing same and reconstructing existing telescopic device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010925583.4A CN111979910A (en) | 2020-09-07 | 2020-09-07 | Shock-absorbing noise-reducing telescopic device and method for mounting and replacing same and reconstructing existing telescopic device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481842A (en) * | 2021-07-14 | 2021-10-08 | 中盛路桥科技集团有限公司 | Assembly environmental protection is fallen and is fallen broach type telescoping device |
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2020
- 2020-09-07 CN CN202010925583.4A patent/CN111979910A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113481842A (en) * | 2021-07-14 | 2021-10-08 | 中盛路桥科技集团有限公司 | Assembly environmental protection is fallen and is fallen broach type telescoping device |
| CN113481842B (en) * | 2021-07-14 | 2021-12-31 | 中盛路桥科技集团有限公司 | Assembly environmental protection is fallen and is fallen broach type telescoping device |
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