CN114790691A - Construction method for steel structure pipe gallery channel under bridge - Google Patents
Construction method for steel structure pipe gallery channel under bridge Download PDFInfo
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- CN114790691A CN114790691A CN202210390798.XA CN202210390798A CN114790691A CN 114790691 A CN114790691 A CN 114790691A CN 202210390798 A CN202210390798 A CN 202210390798A CN 114790691 A CN114790691 A CN 114790691A
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- pipe gallery
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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
- E01D18/00—Bridges specially adapted for particular applications or functions not provided for elsewhere, e.g. aqueducts, bridges for supporting pipe-lines
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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
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
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Abstract
The invention discloses a construction method of a steel structure pipe gallery channel passing under a bridge, which comprises the following steps: firstly, carrying out construction preparation work on a steel structure pipe gallery channel; after the construction preparation work is finished, the steel structure pipe gallery bottom plate is manufactured in a segmented mode; hoisting the steel structure pipe gallery bottom plate to a set position below a flange plate between the left bridge and the right bridge in a segmented manner, and fixedly mounting the steel structure pipe gallery bottom plate so as to form a pipe gallery channel by matching with the beam bodies of the left bridge and the right bridge; and then installing pipeline brackets on the beam bodies of the left bridge and/or the right bridge. Compared with the traditional construction process in which the end wells and the direct-buried sleeves are arranged to realize the gap bridge, the invention reduces the engineering quantity of the two end wells, the direct-buried sleeves, the cable well and the like, reduces the engineering cost, obviously improves the economic and social benefits, and has certain energy-saving, emission-reducing and environment-friendly benefits. Simultaneously, a more efficient construction method is provided for the bridge construction of the pipe gallery, the construction speed of the pipe gallery is increased, and a more favorable guarantee is provided for the high-speed construction of the national comprehensive pipe gallery.
Description
Technical Field
The invention relates to a pipe gallery construction method, in particular to a method for constructing a steel structure pipe gallery channel under a bridge.
Background
With the progress of the times, the social economy is developed at a high speed, the urban planning is improved day by day, the municipal engineering is promoted steadily, and the arrangement of various municipal pipelines such as electric power, communication, water supply, drainage, gas and the like is more and more complicated. At present, urban underground pipeline construction has the phenomena of repeated excavation of urban roads, disorderly competition for underground space, random waste of underground pipeline position resources, frequent engineering accidents and the like. These blind construction phenomena not only cause huge losses of national property, but also bring troubles to the lives of people, and simultaneously damage the images of governments and cities. Based on this, city utility tunnel is the beginning. The urban underground comprehensive pipe gallery is characterized in that a municipal common channel is built under urban roads and used for accommodating buildings and auxiliary facilities of various municipal engineering pipelines, so that the purpose of centralized comprehensive layout management of the municipal pipelines is achieved, and daily operation and later maintenance are facilitated.
The bridge is as the important component part of road, and most roads have one or more bridge at least, and the practicality of steel construction piping lane passageway under the bridge is obvious, and its production efficiency and manufacturing cost play crucial effect to the piping lane construction. Most municipal bridge all adopt structural style such as prefabricated box girder, T roof beam or cast-in-place box girder at present, and the bridge is neighbouring about, and there is certain space of passing through in bridge flange board below, consequently often adopts the position construction piping lane under the bridge between the bridge of controlling. The existing under-bridge gap bridge pipe gallery construction is that two end wells and some direct-buried sleeves are arranged at the end part of a bridge to realize gap bridge, the construction period is long, and the engineering cost is high.
Disclosure of Invention
The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides a construction method of a steel structure pipe gallery channel for passing under a bridge, which can reduce the construction cost and shorten the construction period.
According to the embodiment of the invention, the construction method of the steel structure pipe gallery channel passing through the bridge under the bridge comprises the following steps:
firstly, carrying out construction preparation work on a steel structure pipe gallery channel;
after the construction preparation work is finished, the steel structure pipe gallery bottom plate is manufactured in a segmented mode;
hoisting the steel structure pipe gallery bottom plate to a set position below a flange plate between the left bridge and the right bridge in a segmented manner for fixed installation, so that a pipe gallery channel is formed by matching with the beam bodies of the left bridge and the right bridge;
and then installing a pipeline bracket on the beam body of the left bridge and/or the right bridge.
According to the embodiment of the invention, at least the following technical effects are achieved:
by adopting the steps, the steel structure pipe gallery bottom plate is directly installed, the steel structure pipe gallery bottom plate, the beam bodies and the flange plates of the left and right bridges are enclosed to form the pipe gallery channel, and the pipeline is arranged through the pipeline support, so that the pipe gallery can be quickly constructed under the application situation adjacent to the left and right bridges. Compared with the traditional construction process in which end wells and direct-buried sleeves are arranged to realize a gap bridge, the construction amount of two end wells, the direct-buried sleeves, cable wells and the like is reduced, the construction cost is reduced, the economic and social benefits are obviously improved, and certain energy-saving, emission-reducing and environment-friendly benefits are achieved. Simultaneously, a more efficient construction method is provided for the bridge construction of the pipe gallery, the construction speed of the pipe gallery is increased, and a more favorable guarantee is provided for the high-speed construction of the national comprehensive pipe gallery. And a more efficient and economical construction reference is provided for the pipe gallery gap bridge in the situation.
According to some embodiments of the invention, the steel structure pipe gallery channel construction preparation work comprises arranging lifting holes on flange plates of left and right bridges, and the lifting holes are arranged according to the segment length of the steel structure pipe gallery bottom plate, so that at least four lifting holes correspond to each segment of the steel structure pipe gallery bottom plate; when hoist and mount operation, correspond above the flange plate of the left and right sides width of cloth bridge the hand block is erect to the promotion hole, will hand block's chain warp the promotion hole is transferred to connecting steel construction piping lane bottom plate promotes.
According to some embodiments of the invention, the lifting holes are arranged at the flange plate construction stage of the left-right bridge and are made by embedding PVC pipes according to the thickness of the flange plate and the design interval.
According to some embodiments of the invention, the hand hoist is erected by a hoist support, the hoist support comprising:
the two first angle steels are welded together in a mode that the upper ends of the two first angle steels are abutted and the lower ends of the two first angle steels are separated, the right-angle surfaces of the two first angle steels are coplanar, the other right-angle surfaces of the two first angle steels are opposite, so that the upper ends of the two first angle steels are abutted and abutted together through right-angle edges, and a reinforcing rod is arranged between the two first angle steels;
the cross beam is made of angle steel, the cross beam is distributed in a mode that right-angle sides face upwards, two ends of the cross beam are welded on the two supporting legs, and the end part of the cross beam is carried on the right-angle sides, abutted by the two first angle steels, of the supporting legs;
and the hanging beam is horizontally welded on the two right-angle surfaces of the cross beam along the direction perpendicular to the length direction of the cross beam so as to be used for hanging and buckling the hook of the manual hoist.
According to some embodiments of the invention, the cross beam is provided with:
one end of the second angle steel is welded on one support leg, the other end of the second angle steel is welded with a bearing rod at a position close to the end part, and two ends of the bearing rod are welded on two right-angle surfaces of the second angle steel;
one end of the third angle steel penetrates through the area formed by the bearing rod and the second angle steel and is fixedly welded with the second angle steel, and the other end of the third angle steel is welded on the other supporting leg.
According to some embodiments of the invention, the steel structural pipe gallery floor comprises:
the width of the steel structure truss is matched with the beam body space of the left and right bridges;
and the grating plate is laid on the steel structure truss.
According to some embodiments of the invention, the preparation work for the construction of the steel structure pipe gallery channel comprises the steps of arranging hanger rod holes on flange plates of a left bridge and a right bridge, wherein the positions and the number of the hanger rod holes are arranged corresponding to each section of the steel structure pipe gallery bottom plate, so that each section of the steel structure pipe gallery bottom plate is provided with a plurality of hanger rod holes; after the steel structure pipe gallery bottom plate is hoisted to the setting position below the flange plate between the left and right bridges, the steel structure truss is connected from the bridge floor position to the round steel suspender penetrating below the suspender hole, and the upper end of the round steel suspender is fixed with the bolt through the lower cushion steel plate in a matching way.
According to some embodiments of the invention, the preparation work for the construction of the steel structure pipe gallery channel comprises pre-burying a high-strength bolt sleeve when constructing the beam body part of the left and right bridges; when the pipeline support is installed, the pipeline support is fixedly installed on the side wall of the beam body by adopting the high-strength bolt to be matched with the high-strength bolt sleeve.
According to some embodiments of the invention, the steel structure pipe gallery channel construction preparation work comprises the steps of arranging a reinforced concrete cantilever part at the bottom of a beam body when the beam body part of a left-right bridge is constructed; hoisting during the steel construction piping lane bottom plate, will steel construction piping lane bottom plate hoist extremely the part top of encorbelmenting, through the part of encorbelmenting bears steel construction piping lane bottom plate.
According to some embodiments of the invention, the steel structure pipe gallery channel construction preparation work comprises the steps of pre-burying a load-bearing steel plate at the bottom of a beam body when the beam body part of a left bridge and a right bridge is constructed; hoist during the steel construction pipe gallery bottom plate, work as the both sides of steel construction pipe gallery bottom plate with welded fastening when the load steel sheet aligns.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
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 structure of the construction completion of the steel structure pipe gallery channel under the bridge;
fig. 2 and 3 are schematic views of an installation of the steel structure pipe gallery channel under the bridge in the invention;
FIG. 4 is a schematic view of a line support according to the invention;
FIG. 5 and FIG. 6 are schematic structural diagrams of the pipe gallery channel of the under-bridge gap bridge steel structure in the invention;
fig. 7 and 8 are schematic views of a hoist bracket according to the present invention.
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.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the device or element so referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.
Referring to fig. 1 to 8, the invention provides a construction method of a steel structure pipe gallery channel under a bridge, which comprises the following steps:
firstly, carrying out construction preparation work on a steel structure pipe gallery channel;
after the construction preparation work is finished, the steel structure pipe gallery bottom plate 300 is manufactured in a segmented mode;
hoisting the steel structure pipe gallery bottom plate 300 to a set position below the flange plate 101 between the left bridge and the right bridge in a segmented manner for fixed installation, so that a pipe gallery channel is formed by matching with the beam bodies 100 of the left bridge and the right bridge;
and then installing the pipeline bracket 200 on the beam body 100 of the left bridge and/or the right bridge.
By adopting the steps, the steel structure pipe gallery bottom plate 300 is directly installed, the steel structure pipe gallery bottom plate 300, the beam bodies 100 and the flange plates 101 of the left and right bridges are enclosed to form a pipe gallery channel, and the pipeline is arranged through the pipeline support 200, so that the pipe gallery can be quickly constructed under the application situation adjacent to the left and right bridges. Compared with the traditional construction process in which the end wells and the direct-buried casing pipes are arranged to realize the gap bridge, the construction quantity of the two end wells, the direct-buried casing pipes, the cable well and the like is reduced, the construction cost is reduced, the economic and social benefits are obviously improved, and certain energy-saving, emission-reducing and environment-friendly benefits are achieved. Simultaneously, a more efficient construction method is provided for the bridge construction of the pipe gallery, the construction speed of the pipe gallery is increased, and a more favorable guarantee is provided for the high-speed construction of the national comprehensive pipe gallery. And more efficient and economical construction reference is provided for the pipe gallery gap bridge in such situations.
In order to facilitate the lifting of the steel structure pipe gallery bottom plate 300, in some embodiments of the present invention, the steel structure pipe gallery channel construction preparation work includes setting lifting holes on the flange plates 101 of the left and right bridges, and the lifting holes are set according to the segment length of the steel structure pipe gallery bottom plate 300, so that each segment of the steel structure pipe gallery bottom plate 300 has at least four lifting holes. When hoist and mount operation, correspond the lifting hole and erect the hand block in the flange board 101 top of controlling the width of cloth bridge, transfer the chain of hand block to connecting steel construction piping lane bottom plate 300 through the lifting hole, promote. This ensures a stable lifting process.
Consider if drilling on flange board 101 in the later stage and make the lifting hole, the construction degree of difficulty is great, and the efficiency of construction can receive the influence. Therefore, in some embodiments of the present invention, the lifting holes are formed in the construction stage of the flange plates 101 of the left and right bridges, and are pre-buried by PVC pipes according to the thickness of the flange plates 101 and the design intervals. The pipe diameter of the PVC pipe can be flexibly selected according to the requirement.
Adopt the construction setting of this embodiment, make the lifting hole through the mode of pre-buried PVC pipe, need not later stage processing, be favorable to improving the efficiency of construction. If drilling, still can bore the reinforcing bar in the flange board 101, influence the structural strength of flange board 101, therefore the construction of this embodiment sets up risk and the hidden danger that does not harm the inner structure of flange board 101, and the security is higher. And the material performance of the PVC pipe is more favorable than that of a concrete pore passage for friction between the steel structure pipe gallery bottom plate 300 and a chain of a hand-operated hoist during lifting, the wear is less, and the chain can pass through rapidly and smoothly.
In some embodiments of the invention, the hand hoist is erected by a hoist support, the hoist support comprising:
the two first angle steels 501 are welded together in a mode that the upper ends of the two first angle steels 501 are abutted and the lower ends of the two first angle steels are separated, the right-angle surfaces of the two first angle steels 501 are coplanar, and the other right-angle surfaces of the two first angle steels are opposite, so that the upper ends of the two first angle steels 501 are abutted and abutted together through right-angle edges, and a reinforcing rod 502 is arranged between the two first angle steels 501;
the cross beam 500 is made of angle steel, the cross beam 500 is distributed in a mode that right-angle sides face upwards, two ends of the cross beam 500 are welded on two supporting legs, and the end part of the cross beam 500 is arranged on the right-angle sides, abutted by the two first angle steels 501, of the supporting legs;
and the hanging beam 503 is horizontally welded on two right-angle surfaces of the cross beam 500 along the length direction perpendicular to the cross beam 500 so as to be used for hanging and buckling the hook of the hand hoist.
Adopt the structure setting of this embodiment, hand block carries on hanging beam 503 through the couple of self upper end, and the both ends of crossbeam 500 are carried on the landing leg, consequently when hand block promoted steel construction piping lane bottom plate 300 and received decurrent effort, can directly transmit the atress to the landing leg on, and on the non-welding point transmits the atress to the landing leg, therefore the structure is more firm, reliable. Meanwhile, the lower ends of the two first angle steels 501 of the supporting legs are separated, so that four stable supporting cross beams 500 of the supporting points can be formed. The provision of the reinforcement bar 502 is also for ensuring stability and structural strength of the first angle 501. In addition, the structural arrangement of this embodiment is adopted, conveniently draws materials, also makes things convenient for the welding of hanging roof beam 503 simultaneously.
In practical applications, when there is no obstacle in the bridge deck corresponding to the flange plate 101, a reinforcing angle iron may be disposed between the two legs to improve the structural strength.
When there is an obstacle on the bridge deck, the avoidance can be realized by increasing the length of the cross beam 500. Considering that the strength of a single angle is weak if the length of the angle is too long, in order to alleviate this, in some embodiments of the present invention, the cross beam 500 is provided with:
one end of the second angle steel is welded on one support leg, the other end of the second angle steel is welded with a bearing rod at a position close to the end part, and two ends of the bearing rod are welded on two right-angle surfaces of the second angle steel;
one end of the third angle steel penetrates through the area formed by the bearing rod and the second angle steel and is fixedly welded with the second angle steel, and the other end of the third angle steel is welded on the other supporting leg.
Adopt the structural setting of this embodiment, crossbeam 500 increases through the overlapping setting of second angle steel, third angle steel, and the overlap section of second angle steel, third angle steel can add intensity simultaneously, alleviates the intensity that the length increase leads to and weakens the condition, guarantees structural strength and the stability of crossbeam 500 atress when promoting. Besides the welded fastening, the third angle steel and the second angle steel in the embodiment are further connected through the bearing rod in an enhanced mode, in actual production, the third angle steel and the second angle steel are firstly overlapped and placed and welded and fixed, and then the bearing rod is welded on the second angle steel, so that the bearing rod is abutted to the third angle steel simultaneously, and the overall structural strength and the stability of the third angle steel and the second angle steel are improved.
It will be appreciated that in practice, more angles can be provided to increase the length of the beam 500 and more load-bearing bars can be provided to increase the structural strength.
In some embodiments of the present invention, the steel structural piping lane floor 300 comprises:
the width of the steel structure truss 301 is matched with the distance between the beam bodies 100 of the left bridge and the right bridge;
and the grating plates 302 are laid on the steel structure truss 301.
The steel structure truss 301 is made of angle steel welding or bolt connection and used for bearing the grid plate 302. The grating plate 302 and the steel structure truss 301 may be connected and fixed by bolts or the like, or may not be directly connected and fixed, but connected and fixed by an assembly relationship after the hoisting is completed. For example, after the installation and fixation, the steel structural truss 301 is fixed, and the grating plates 302 are laid on the steel structural truss 301, and there is a matching relationship between the grating plates 302, so that they will not move freely.
In the hoisting process, the chain can penetrate through the grating plate 302 to be connected with the steel structure truss 301, or the steel structure truss 301 is provided with a connecting structure capable of penetrating through the grating plate 302 to be connected with the chain, so that the hoisting process can be carried out, the grating plate 302 can be prevented from falling in the hoisting process, and the hoisting can be smoothly completed.
In the first embodiment of the invention, the preparation work for the construction of the steel structure pipe gallery channel comprises the steps of arranging the lifting rod holes on the flange plates 101 of the left and right bridges, wherein the positions and the number of the lifting rod holes are arranged corresponding to each section of steel structure pipe gallery bottom plate 300, so that each section of steel structure pipe gallery bottom plate 300 is provided with a plurality of lifting rod holes; after steel construction piping lane bottom plate 300 is hoisted to the setup position of the flange board 101 below between the left and right bridges, wear round steel jib 400 from the bridge floor position to the jib hole and connect steel structure truss 301, the upper end of round steel jib 400 is fixed with the bolt cooperation through underlay steel plate 401.
The boom holes can be pre-buried by PVC pipes according to the thickness of the flange plate 101 and the design interval.
By adopting the construction method of the embodiment, the steel structure pipe gallery bottom plate 300 is supported by the round steel hanger rods 400. The upper end of the steel structure truss 301 is welded with a lifting lug 403, a hole site is formed in the lifting lug 403, the lower end of the round steel suspender 400 is welded with a connecting steel plate 402, the connecting steel plate 402 is provided with a hole site corresponding to the lifting lug 403, and the round steel suspender and the hole site are locked and fixed through bolts, so that the round steel suspender 400 is connected with the steel structure truss 301. The upper end of the round steel suspender 400 is provided with a thread section, and the upper end of the round steel suspender passes through the lower cushion steel plate 401 positioned on the bridge floor and is locked by a bolt to form a fixing form of matching the lower cushion steel plate 401 with the bolt. Since the green belt is generally arranged at the position of the bridge floor later, the upper end of the round steel suspension rod 400 does not influence the arrangement of the bridge floor.
In a second embodiment of the present invention, the preparation work for the construction of the steel structure pipe gallery channel comprises the steps of arranging a reinforced concrete cantilever part at the bottom of a beam body 100 when constructing the beam body 100 part of the left and right bridges; when hoist steel construction pipe gallery bottom plate 300, hoist steel construction pipe gallery bottom plate 300 to the part top of encorbelmenting, bear steel construction pipe gallery bottom plate 300 through the part of encorbelmenting.
By adopting the construction method of the embodiment, the overhanging part is constructed on the beam body 100 of the left and right bridges to bear the steel structure pipe gallery bottom plate 300, the bridge floor space cannot be influenced, the reliability is higher than that of a hoisting fixed structural form, a lifting rod hole is not required to be arranged, and the construction efficiency is higher.
In the third embodiment of the invention, the preparation work for constructing the steel structure pipe gallery channel comprises the steps of embedding a load-bearing steel plate at the bottom of a beam body 100 when constructing the beam body 100 part of a left-right bridge; when hoist steel construction pipe gallery bottom plate 300, welded fastening when the both sides of steel construction pipe gallery bottom plate 300 align with the load steel sheet. The construction form of this embodiment is similar with the construction form of aforementioned second kind of embodiment, has all optimized the fixed step of hoist and mount, all can not influence the bridge floor setting, need not to set up corresponding hole, and the reliability is higher, and the efficiency of construction is higher.
To simplify installation of the pipeline bracket 200, in some embodiments of the present invention, the steel structure pipe gallery channel construction preparation work includes pre-burying high-strength bolt sleeves when constructing the beam body 100 portion of the left and right width bridges; when the pipeline bracket 200 is installed, the pipeline bracket 200 is fixedly installed on the side wall of the beam body 100 by adopting the high-strength bolt and the high-strength bolt sleeve. This eliminates the need to re-drill the hole sites.
In some embodiments of the present invention, the pipeline bracket 200 includes a rail channel 201 and a square steel pipe 202, wherein the rail channel 201 is vertically fixed on the side wall of the beam body 100 by a pre-embedded high-strength bolt sleeve, the rail channel 201 forms a rail channel in the vertical direction, and the square steel pipe 202 is provided with a plurality of rails and is installed on the rail channel 201 in an up-and-down adjustable manner by a bolt in cooperation with the rail channel. Thus, the position of the square steel tube 202 can be adjusted according to actual needs.
In addition, the preparation work of the invention in the construction of the steel structure pipe gallery channel also comprises the work of material entering and material acceptance. Painting is carried out after the steel structure truss 301 is manufactured, painting is not carried out when the distance of 50mm is reserved between two sides or two ends, and painting is repaired after the steel structure truss is hoisted and fixed finally.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
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 utility model provides a bridge steel construction pipe gallery passageway construction method under bridge which characterized in that includes:
firstly, carrying out construction preparation work on a steel structure pipe gallery channel;
after the construction preparation work is finished, the steel structure pipe gallery bottom plate is manufactured in a segmented mode;
hoisting the steel structure pipe gallery bottom plate to a set position below a flange plate between the left bridge and the right bridge in a segmented manner, and thus forming a pipe gallery channel by matching with the beam bodies of the left bridge and the right bridge;
and then installing pipeline brackets on the beam bodies of the left bridge and/or the right bridge.
2. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 1, wherein the steel structure pipe gallery channel construction preparation work comprises arranging lifting holes on flange plates of left and right bridges, and the lifting holes are arranged according to the segmented length of the steel structure pipe gallery bottom plate, so that at least four lifting holes correspond to each section of the steel structure pipe gallery bottom plate; when hoist and mount operation, correspond in the flange board top of controlling the width of cloth bridge hand block is erect to the lifting hole, will hand block's chain warp the lifting hole is transferred to being connected steel construction piping lane bottom plate promotes.
3. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 2, wherein the lifting holes are formed in the flange plate construction stage of a left bridge and a right bridge and are pre-buried according to the thickness of the flange plates and the design intervals by adopting PVC pipes.
4. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 2, wherein the hand hoist is erected through a hoist bracket, and the hoist bracket comprises:
the two first angle steels are welded together in a mode that the upper ends of the two first angle steels are abutted and the lower ends of the two first angle steels are separated, the right-angle surfaces of the two first angle steels are coplanar, the other right-angle surfaces of the two first angle steels are opposite, so that the upper ends of the two first angle steels are abutted and abutted together through right-angle edges, and a reinforcing rod is arranged between the two first angle steels;
the cross beam is made of angle steel, the cross beam is distributed in a mode that right-angle sides face upwards, two ends of the cross beam are welded on the two supporting legs, and the end part of the cross beam is carried on the right-angle sides, abutted by the two first angle steels, of the supporting legs;
and the hanging beam is horizontally welded on the two right-angle surfaces of the cross beam along the length direction perpendicular to the cross beam, so that the hook of the manual hoist can be hung and buckled.
5. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 4, wherein the cross beam is provided with:
one end of the second angle steel is welded on one support leg, a bearing rod is welded at the position, close to the end part, of the other end of the second angle steel, and two ends of the bearing rod are welded on two right-angle surfaces of the second angle steel;
one end of the third angle steel penetrates through the area formed by the bearing rod and the second angle steel and is fixedly welded with the second angle steel, and the other end of the third angle steel is welded on the other supporting leg.
6. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 1, wherein the steel structure pipe gallery bottom plate comprises:
the width of the steel structure truss is matched with the beam body space of the left and right bridges;
and the grating plate is laid on the steel structure truss.
7. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 6, wherein the steel structure pipe gallery channel construction preparation work includes arranging hanger rod holes on flange plates of left and right bridges, and the positions and the number of the hanger rod holes are arranged corresponding to each section of the steel structure pipe gallery bottom plate, so that each section of the steel structure pipe gallery bottom plate is provided with a plurality of hanger rod holes correspondingly; after the steel structure pipe gallery bottom plate is hoisted to the setting position below the flange plate between the left and right bridges, the steel structure truss is connected from the bridge deck position to the round steel suspender is penetrated through the suspender hole, and the upper end of the round steel suspender is fixed with the bolt through the lower cushion steel plate.
8. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 1, wherein the steel structure pipe gallery channel construction preparation work comprises pre-burying high-strength bolt sleeves when beam body parts of left and right bridges are constructed; when the pipeline support is installed, the pipeline support is fixedly installed on the side wall of the beam body by adopting the high-strength bolt to be matched with the high-strength bolt sleeve.
9. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 1, wherein the steel structure pipe gallery channel construction preparation work includes that when a beam body part of a left-right bridge is constructed, a reinforced concrete cantilever part is arranged at the bottom of the beam body; hoisting during the steel construction piping lane bottom plate, will steel construction piping lane bottom plate hoist extremely the part top of encorbelmenting, through the part of encorbelmenting bears steel construction piping lane bottom plate.
10. The under-bridge gap bridge steel structure pipe gallery channel construction method according to claim 1, wherein the steel structure pipe gallery channel construction preparation work includes embedding a load-carrying steel plate at the bottom of a beam body when constructing the beam body part of a left and right bridge; hoisting during the steel construction pipe gallery bottom plate, work as the both sides of steel construction pipe gallery bottom plate with welded fastening when the load steel sheet aligns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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|---|---|
| CN114790691B (en) | 2023-10-20 |
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