CN114214955A - Method for erecting bridge-spanning steel plate girder - Google Patents
Method for erecting bridge-spanning steel plate girder Download PDFInfo
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- CN114214955A CN114214955A CN202111631114.2A CN202111631114A CN114214955A CN 114214955 A CN114214955 A CN 114214955A CN 202111631114 A CN202111631114 A CN 202111631114A CN 114214955 A CN114214955 A CN 114214955A
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 207
- 239000010959 steel Substances 0.000 title claims abstract description 207
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000010276 construction Methods 0.000 claims abstract description 58
- 238000009434 installation Methods 0.000 claims description 27
- 239000000725 suspension Substances 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000004080 punching Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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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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Abstract
The invention discloses an erection method of a bridge-spanning steel plate girder. The erection method is suitable for the technical field of steel structure bridge manufacturing, wherein a plurality of steel plate beams are respectively placed below two buttresses forming a hole; mounting construction hanging cages at two ends of each steel plate beam; sequentially hoisting a plurality of steel plate beams, respectively placing two ends of the plurality of steel plate beams at the tops of the two buttresses, and connecting the end parts of the steel plate beams to the tops of the corresponding buttresses by utilizing a construction hanging cage; and repeating the steps to complete the erection of the steel plate beams with the rest holes in sequence. The invention adopts the steel plate girder with the sectional type structure, the two ends of the plurality of hoisting steel plate girders are placed on the corresponding support piers and are matched with the construction hanging cage to connect and install the steel plate girders, thereby realizing the erection of the steel plate girders on the old bridge in a certain overhead construction line and having good practicability, novelty and creativity.
Description
Technical Field
The invention belongs to the technical field of steel structure bridge manufacturing, and particularly relates to an erection method of a bridge-spanning steel plate beam.
Background
The length of a certain overhead main line is 21km, steel plate beams are erected on the original first-level highway, and the construction line of the overhead main line has various construction working conditions which are severely limited by construction conditions, such as construction under high-voltage lines, crossing road construction and original erection operation on old bridges. The crane needs to be placed on the old bridge in the erecting operation of the old bridge, the old bridge is long in service time and limited in bearing capacity, the requirement for the crane to place is high, the requirement for direct bridge-loading and hoisting of a large-scale crane cannot be met, and the transportation vehicle and the crane cannot pass if the bracket is adopted for steel plate girder erection.
Disclosure of Invention
The invention aims to solve the technical problem of erecting steel plate beams on old bridges in a certain overhead construction line at least to a certain extent. Therefore, the invention provides an erection method of a bridge spanning steel plate girder.
The technical scheme of the invention is as follows:
the invention provides an erection method of a bridge-spanning steel plate girder, which comprises the following steps:
respectively placing a plurality of steel plate beams below two buttresses forming the hole;
mounting construction hanging cages at two ends of each steel plate beam;
sequentially hoisting a plurality of steel plate beams, respectively placing two ends of the plurality of steel plate beams at the tops of the two buttresses, and connecting the end parts of the steel plate beams to the tops of the corresponding buttresses by using the construction hanging cage;
and repeating the steps to complete the erection of the steel plate girder with the rest holes in sequence.
Further, hoist and mount the steel sheet roof beam specifically includes:
and hoisting the end parts of the steel plate beams respectively by using cranes at the two buttresses until the two ends of the steel plate beams are placed at the tops of the two buttresses respectively.
Furthermore, the distance between each station stress leg of each crane and the center line of the old bridge pier is not more than 4 m.
Furthermore, only one crane can be arranged between two adjacent piers of the old bridge.
Further, utilize the cage is hung in the construction, with the end connection of steel sheet roof beam is in the correspondence the top of buttress specifically includes:
installation personnel respectively enter the construction hanging cage at the two ends of the steel plate beam for construction, so that the end part of the steel plate beam is connected with the corresponding buttress and the end part of the adjacent steel plate beam.
Further, the end of the steel plate beam is connected with the end of the adjacent steel plate beam through a bolt.
Furthermore, the pre-tightening torque of the bolt connection reaches 80% of the design torque after the initial tightening and the re-tightening, the positioning punch nail is not less than 20%, and the number of the punch nail and the temporary bolt is not less than 40% of the number of the holes.
Further, the erection method further comprises:
and when the steel plate beams adjacent to the holes are erected, the steel plate beam of the front hole positioned on the same straight line extends into the rear hole.
Further, the erection method further comprises:
splitting the steel plate beam into a first beam body and a second beam body, and placing the first beam body and the second beam body below the corresponding holes;
the construction hanging cages are arranged at one end of the first beam body;
hoisting the two ends of the first beam body, and enabling one end of the first beam body to be placed at the top of one buttress of the corresponding hole;
one end of the first beam body is connected to the top of one buttress of the corresponding hole by using the construction hanging cage;
the construction hanging cages are arranged at two ends of the second beam body;
hoisting two ends of the second beam body, enabling one end of the second beam body to be placed at the other end of the first beam body, and enabling the other end of the second beam body to be placed at the top of the other buttress of the corresponding hole;
and connecting the other end of the first beam body with one end of the second beam body by using the construction hanging cage, and connecting the other end of the second beam body to the top of the other buttress of the corresponding hole.
Furthermore, an inclined support piece is arranged between the steel plate beam and the buttress.
The embodiment of the invention at least has the following beneficial effects:
according to the method for erecting the bridge-spanning steel plate girder, the steel plate girder with the sectional type structure is adopted, the two ends of the plurality of hoisted steel plate girders are placed on the corresponding buttresses and are matched with the construction hanging cage to connect and install the steel plate girders, the steel plate girder is erected on an old bridge in a certain overhead construction line, and the method has good practicability, novelty and creativity.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view of the installation of a first steel plate girder of example 1;
fig. 2 is a schematic view of the installation of the second steel plate girder of embodiment 1;
fig. 3 is an installation schematic view of a third steel plate girder of embodiment 1;
fig. 4 is an installation schematic view of a fourth steel plate girder of embodiment 1;
fig. 5 is an installation schematic view of a fifth steel plate girder of embodiment 1;
fig. 6 is a schematic view of mounting the sixth steel plate girder of example 1.
Reference numerals:
1-a first buttress; 2-a second buttress; 3-a third buttress; 4-a fourth buttress; 5-fifth buttress; 6-a first steel plate beam; 7-a second steel plate beam; 8-a third steel plate beam; 9-a fourth steel plate beam; 10-a fifth steel plate beam; 11-sixth steel plate girder; 12-a first crane; 13-a second crane; 14-a third crane; 15-old bridge.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
The invention is described below with reference to specific embodiments in conjunction with the following drawings:
the method for erecting the bridge-spanning steel plate girder provided by the embodiment of the invention comprises the following steps:
s1: respectively placing a plurality of steel plate beams below two buttresses forming the hole;
s2: mounting construction hanging cages at two ends of each steel plate beam;
s3: sequentially hoisting a plurality of steel plate beams, respectively placing two ends of the plurality of steel plate beams at the tops of the two buttresses, and connecting the end parts of the steel plate beams to the tops of the corresponding buttresses by utilizing a construction hanging cage;
s4: and repeating the steps to complete the erection of the steel plate beams with the rest holes in sequence.
The erecting method in the embodiment of the application adopts the steel plate beams with the sectional structures, the two ends of the plurality of hoisted steel plate beams are placed on the corresponding support piers, and the steel plate beams are connected and installed by matching with the construction hanging cage, so that the steel plate beams are erected on the old bridge in a certain overhead construction line.
Further, hoisting the steel plate beam specifically comprises hoisting the end parts of the steel plate beam respectively by using cranes at the two buttresses until the two ends of the steel plate beam are placed at the tops of the two buttresses respectively, so as to hoist the steel plate beam by the cranes.
Furthermore, the distance between each station stress supporting leg of each crane and the center line of the pier of the old bridge is not more than 4m, only one crane can be arranged between two adjacent piers of the old bridge, and the method is adopted to ensure that the crane cannot damage the old bridge due to limited bearing of the old bridge.
Further, utilize the construction to hang the cage, with the top of the end connection of steel sheet roof beam at the buttress that corresponds, specifically including installer gets into the construction at steel sheet roof beam both ends department respectively and hangs the cage in construction, make the tip of steel sheet roof beam with the buttress that corresponds be connected and with the end connection of adjacent steel sheet roof beam to combine the mode of artifical installation, realize the installation of girder steel.
Furthermore, the end part of the steel plate beam is connected with the end part of the adjacent steel plate beam through a bolt, the pre-tightening torque of the bolt connection reaches 80% of the design torque after the initial screwing and the re-screwing, the positioning punching nail is not less than 20%, and the number of the punching nail and the number of the temporary bolts are not less than 40% of the number of holes, so that the installation effect is ensured, and the installation reliability and the stability are improved.
Furthermore, the erection method also comprises the step of enabling the steel plate beam of the front hole positioned on the same straight line to extend into the rear hole when the steel plate beams of the adjacent holes are erected, so that the joints of the two adjacent steel plate beams are prevented from being positioned at the tops of the buttresses, and the installation stability of the steel plate beams is improved.
Further, the erection method also comprises the following steps: the split steel plate beam is a first beam body and a second beam body and is arranged below the corresponding hole; mounting construction hanging cages at one end of the first beam body; hoisting two ends of the first beam body, and placing one end of the first beam body on the top of one buttress of the corresponding hole; one end of the first beam body is connected to the top of one buttress of the corresponding hole by using the construction hanging cage; mounting construction hanging cages at both ends of the second beam body; hoisting two ends of the second beam body, so that one end of the second beam body is placed at the other end of the first beam body, and the other end of the second beam body is placed at the top of the other buttress of the corresponding hole; and the other end of the first beam body is connected with one end of the second beam body by utilizing the construction hanging cage, and the other end of the second beam body is connected to the top of the other buttress of the corresponding hole. When the distance between two adjacent buttresses is large, the method is adopted for installation, the installation effect is guaranteed, and the safety is improved.
Furthermore, an inclined support piece is arranged between the steel plate beam and the buttress to ensure the installation stability of the steel plate beam.
Furthermore, the steel plate beams are installed by adopting a total station for measurement and positioning so as to ensure the installation accuracy.
Example 1
Fig. 1-6 show a method for erecting a steel plate girder across a bridge according to embodiment 1, in conjunction with fig. 1, in this embodiment, a steel plate girder is erected on an old bridge 15, which belongs to a set of an elevated main line, 5 buttresses are required to be installed on a bridge deck of the old bridge 15, in this order, a first hole with a span of 35m is formed between a first buttress 1 and a second buttress 2, a second hole with a span of 60m is formed between the second buttress 2 and a third buttress 3, a third hole with a span of 60m is formed between the third buttress 3 and a fourth buttress 4, a fourth hole with a span of 35m is formed between the fourth buttress 4 and a fifth buttress 5, 8 steel plate girders are required to be erected in parallel, the first hole is designed to be provided with the first steel plate girder 6 with a length of 39m, the second girder 7 with a length of 37.2m and the third girder with a length of 22.8m, and the third hole is designed to be provided with the second girder 7 and the fifth girder with a length of 10.8, and a sixth steel plate beam 11 with the length of 31m is arranged on the fourth hole.
Referring to fig. 1, the method for erecting a steel plate girder across a bridge includes:
erecting a first steel plate beam 6: referring to fig. 1, eight first steel plate girders 6 are respectively placed below corresponding installation positions of first holes, construction hanging cages are respectively hung at installation positions at two ends of the first steel plate girders 6, a first crane 12 is arranged at a first buttress 1, a second crane 13 is arranged at a second buttress 2, the first crane 12 and the second crane 13 respectively hang up one end and the other end of one first steel plate girder 6, one end of one first steel plate girder 6 is placed at the installation position on the first buttress 1, the other end of one first steel plate girder 6 is placed at the installation position on the second buttress 2, an installer respectively enters the construction hanging cages at the first buttress 1 and the second buttress 2 to install one first steel plate girder 6, one end of one first steel plate girder 6 is installed on the first buttress 1 and connected with an adjacent structure installed on the first buttress 1, and the other end of one first girder 6 is installed on the second buttress 2, and extending out of the second hole to complete the erection of one first steel plate beam 6, and erecting the remaining seven first steel plate beams 6 on the first hole at intervals in parallel according to the steps;
erecting a second steel plate beam 7 and a third steel plate beam 8: referring to fig. 2 and 3, eight second steel plate girders 7 and eight third steel plate girders 8 are respectively placed below corresponding installation positions of the second holes, a construction suspension cage is suspended at a connection position of the other end of the first steel plate girder 6 and one end of the second steel plate girder 7, a first crane 12 is disposed at the second buttress 2, a second crane 13 is disposed between the second buttress 2 and the third buttress 3, the first crane 12 and the second crane 13 respectively suspend one end and the other end of one second steel plate girder 7, one end of one second steel plate girder 7 is placed at the other end of one first steel plate girder 6, an installer enters the construction suspension cage suspended at the position, one end of one second steel plate girder 7 is installed together with the other end of one first steel plate girder 6, the second crane 13 is kept suspending the other end of the second steel plate girder 7, the first crane 12 is disposed between the second buttress 2 and the third buttress 3, a third crane 14 is arranged at the third buttress 3, a construction hanging cage is respectively hung at the joint of the other end of the second steel plate beam 7 and one end of the third steel plate beam 8 and the third buttress 3, the first crane 12 and the third crane 14 respectively hang one end and the other end of a third steel plate beam 8, one end of the third steel plate beam 8 is placed at the other end of the second steel plate beam 7, an installer enters the construction hanging cage at the position, one end of the third steel plate beam 8 and the other end of the second steel plate beam 7 are installed together, meanwhile, the other end of the third steel plate beam 8 is placed at the installation position on the third buttress 3, the installer enters the construction hanging cage at the position, the other end of the third steel plate beam 8 is installed on the third buttress 3 and extends out of a third hole, and therefore erection of the second steel plate beam 7 and the third steel plate beam 8 is completed, the remaining seven second steel plate beams 7 and seven third steel plate beams 8 are erected on the second hole at intervals in parallel according to the steps;
erecting a fourth steel plate beam 9 and a fifth steel plate beam 10: referring to fig. 4 and 5, eight fourth steel plate girders 9 and eight fifth steel plate girders 10 are respectively placed below corresponding installation positions of the third hole, a construction suspension cage is suspended at a connection between the other end of the third steel plate girder 8 and one end of the fourth steel plate girder 9, a first crane 12 is disposed at the third buttress 3, a second crane 13 is disposed between the third buttress 3 and the fourth buttress 4, the first crane 12 and the second crane 13 respectively suspend one end and the other end of one fourth steel plate girder 9, one end of one fourth steel plate girder 9 is placed at the other end of one third steel plate girder 8, an installer enters the construction suspension cage suspended at the position, one end of one fourth steel plate girder 9 is installed together with the other end of one third steel plate girder 8, the second crane 13 is kept suspending the other end of the fourth steel plate girder 9, the first crane 12 is disposed between the third buttress 3 and the fourth buttress 4, a third crane 14 is arranged at the fourth buttress 4, a construction hanging cage is respectively hung at the joint of the other end of the fifth steel plate beam 10 and one end of the fourth steel plate beam 9 and the fourth buttress 4, the first crane 12 and the third crane 14 respectively hang one end and the other end of a fifth steel plate beam 10, one end of the fifth steel plate beam 10 is placed at the other end of the fourth steel plate beam 9, an installer enters the construction hanging cage at the position, one end of the fifth steel plate beam 10 and the other end of the fourth steel plate beam 9 are installed together, meanwhile, the other end of the fifth steel plate beam 10 is placed at the installation position on the fourth buttress 4, the installer enters the construction hanging cage at the position, the other end of the fifth steel plate beam 10 is installed on the fourth buttress 4 and extends out of the fourth hole, and therefore, the erection of the fourth steel plate beam 9 and the fifth steel plate beam 10 is completed, the rest seven fourth steel plate beams 9 and seven fifth steel plate beams 10 are erected on the third hole at intervals in parallel according to the steps;
erecting a sixth steel plate beam 11: referring to fig. 6, eight sixth steel plate girders 11 are respectively placed below the corresponding installation positions of the fourth holes, construction cages are respectively hung at the connection positions of the other ends of the fifth steel plate girders 10 and one end of the sixth steel plate girder 11 and at the fifth buttresses 5, a first crane 12 is arranged at the fourth buttresses 4, a second crane 13 is arranged at the fifth buttresses 5, the first crane 12 and the second crane 13 respectively lift one end and the other end of the sixth steel plate girder 11, one end of the sixth steel plate girder 11 is placed at the other end of the fifth steel plate girder 10, an installer enters the construction cage at the position, one end of the sixth steel plate girder 11 is installed together with the other end of the fifth steel plate girder 10, and simultaneously, the other end of the sixth steel plate girder 11 is placed at the installation position on the fifth buttresses 5, the installer enters the construction cage at the position, one end of the sixth steel plate girder 11 is installed on the fifth buttresses 5, and is connected with the structure which is adjacently connected and arranged on the fifth buttress 5, so as to complete the erection of one first steel plate beam 6, and the rest seven first steel plate beams 6 are erected on the first hole at intervals in parallel according to the steps.
In embodiment 1, connecting beams are disposed between eight first steel plate beams 6, eight second steel plate beams 7, eight third steel plate beams 8, eight fourth steel plate beams 9, eight fifth steel plate beams 10, and eight sixth steel plate beams 11, so as to improve the stability of the overall installation of the steel plate beams.
According to the method for erecting the bridge-spanning steel plate girder, the steel plate girder with the sectional type structure is adopted, the two ends of the plurality of hoisted steel plate girders are placed on the corresponding buttresses and are matched with the construction hanging cage to connect and install the steel plate girders, the steel plate girder is erected on an old bridge in a certain overhead construction line, and the method has good practicability, novelty and creativity.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
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", "clockwise", "counterclockwise" indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention.
It should be noted that all the directional indications in the embodiments of the present invention are only used to explain the relative position relationship, the motion situation, and the like between the components in a certain posture, and if the certain posture is changed, the directional indication is changed accordingly.
In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second", may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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 are not necessarily intended to 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. Furthermore, various embodiments or examples described in this specification can be combined and combined by those skilled in the art.
In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.
While embodiments of the present 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 erection method of the bridge-spanning steel plate girder is characterized by comprising the following steps:
respectively placing a plurality of steel plate beams below two buttresses forming the hole;
mounting construction hanging cages at two ends of each steel plate beam;
sequentially hoisting a plurality of steel plate beams, respectively placing two ends of the plurality of steel plate beams at the tops of the two buttresses, and connecting the end parts of the steel plate beams to the tops of the corresponding buttresses by using the construction hanging cage;
and repeating the steps to complete the erection of the steel plate girder with the rest holes in sequence.
2. An erection method of a span-bridge steel plate girder according to claim 1, wherein hoisting said steel plate girder specifically comprises:
and hoisting the end parts of the steel plate beams respectively by using cranes at the two buttresses until the two ends of the steel plate beams are placed at the tops of the two buttresses respectively.
3. An erection method for a steel plate girder across a bridge as claimed in claim 2 wherein each said crane has a stress leg at each station which is no more than 4m from the centerline of the pier of the old bridge.
4. A method for erecting a bridge-spanning steel plate girder according to claim 3, wherein only one said crane is provided between two adjacent piers of said old bridge.
5. An erection method of a bridge-spanning steel plate girder according to claim 1, wherein said construction suspension cage is used to connect the end of said steel plate girder to the top of the corresponding buttress, specifically comprising:
installation personnel respectively enter the construction hanging cage at the two ends of the steel plate beam for construction, so that the end part of the steel plate beam is connected with the corresponding buttress and the end part of the adjacent steel plate beam.
6. An erection method for a bridge-spanning steel plate girder according to claim 5, wherein the ends of said steel plate girder are connected with the adjacent ends of said steel plate girder by bolts.
7. The method for erecting the steel plate beam across the bridge according to claim 6, wherein the pre-tightening torque of the bolted connection reaches 80% of the design torque after the initial tightening and the re-tightening, the positioning punch nails are not less than 20%, and the number of the punch nails and the temporary bolts is not less than 40% of the number of holes.
8. The method of erecting a span bridge steel plate girder according to claim 1, further comprising:
and when the steel plate beams adjacent to the holes are erected, the steel plate beam of the front hole positioned on the same straight line extends into the rear hole.
9. An erection method of a bridge spanning steel plate girder according to claim 1, characterized in that said erection method further comprises:
splitting the steel plate beam into a first beam body and a second beam body, and placing the first beam body and the second beam body below the corresponding holes;
the construction hanging cages are arranged at one end of the first beam body;
hoisting the two ends of the first beam body, and enabling one end of the first beam body to be placed at the top of one buttress of the corresponding hole;
one end of the first beam body is connected to the top of one buttress of the corresponding hole by using the construction hanging cage;
the construction hanging cages are arranged at two ends of the second beam body;
hoisting two ends of the second beam body, enabling one end of the second beam body to be placed at the other end of the first beam body, and enabling the other end of the second beam body to be placed at the top of the other buttress of the corresponding hole;
and connecting the other end of the first beam body with one end of the second beam body by using the construction hanging cage, and connecting the other end of the second beam body to the top of the other buttress of the corresponding hole.
10. A method of erecting a bridge-spanning steel plate girder according to any one of claims 1 to 9, wherein diagonal braces are provided between said steel plate girder and said buttresses.
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| CN202111631114.2A CN114214955B (en) | 2021-12-28 | 2021-12-28 | Method for erecting bridge-crossing steel plate girder |
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| CN202111631114.2A CN114214955B (en) | 2021-12-28 | 2021-12-28 | Method for erecting bridge-crossing steel plate girder |
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| CN113026528A (en) * | 2021-03-10 | 2021-06-25 | 浙江中天恒筑钢构有限公司 | Method for mounting mountain forest space curve steel structure plank road |
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| CN114214955B (en) | 2024-03-22 |
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