CN111519514B - Cantilever type steel-concrete I-shaped composite beam and installation and construction method - Google Patents
Cantilever type steel-concrete I-shaped composite beam and installation and construction method Download PDFInfo
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- CN111519514B CN111519514B CN202010296155.XA CN202010296155A CN111519514B CN 111519514 B CN111519514 B CN 111519514B CN 202010296155 A CN202010296155 A CN 202010296155A CN 111519514 B CN111519514 B CN 111519514B
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- longitudinal beam
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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
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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
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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
- E01D2/02—Bridges characterised by the cross-section of their bearing spanning structure of the I-girder type
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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
Abstract
The embodiment of the invention discloses a cantilever type steel-concrete I-shaped composite beam, which comprises a cross beam and a longitudinal beam which are connected into the composite beam, wherein the cross beam and the longitudinal beam are vertically installed, a first connecting assembly used for reinforcing the joint of the cross beam and the longitudinal beam is arranged between the cross beam and the longitudinal beam, a second connecting assembly used for reinforcing the joint of two adjacent longitudinal beams is arranged between two adjacent longitudinal beams, and the installation and construction method comprises the following steps: at first will be fixed in the web of longeron through the bolt with the fixed plate on, later rotatory adjusting nut makes the connecting plate withstand longeron top flange or longeron bottom flange, and through connect the nut on positioning bolt afterwards, realize the secondary fixed to the connecting plate, accomplish being connected of longeron and longeron, the mounting means of longeron and crossbeam is similar with it, the assembling of single bridge floor support module can then be accomplished to process more than the repetition, its joint is when the atress, even with the power sharing of accessible first coupling assembling or second coupling assembling give crossbeam or longeron, it is more firm to connect.
Description
Technical Field
The invention relates to the technical field of bridges, in particular to a cantilever type steel-concrete I-shaped composite beam and an installation and construction method.
Background
A bridge is a large structure used to span obstacles. And more particularly to structures for crossing traffic routes or other facilities over natural or man-made obstacles, the purpose of the bridges being to allow people, vehicles, trains or vessels to pass through the obstacles, the bridges being able to be set up on either side of a valley or strait, or raised above the ground, to cross a river or road below, leaving the traffic below unobstructed.
Wherein be used for the combination beam of bridge construction its when manufacturing, often can use a large amount of I-steel and H shaped steel to hold as crossbeam and longeron, and the mode of its connection is mostly adopted the reinforcement piece then to connect through high strength screw at present, and when the junction atress, the power that it was born is mostly born by high strength screw, in long-time use, high strength screw ageing very easily appear the cracked problem of high strength screw when receiving great power, has very big potential safety hazard.
Disclosure of Invention
Therefore, the embodiment of the invention provides a cantilever type steel-concrete I-shaped composite beam and an installation and construction method thereof, and aims to solve the problems that in the prior art, when a beam body is stressed, a high-strength screw bears shearing force, and when the beam body is used for a long time, the high-strength screw is aged and is easy to break when being subjected to a large force.
In order to achieve the above object, an embodiment of the present invention provides the following:
the cantilever type steel-concrete I-shaped composite beam comprises a cross beam and a longitudinal beam which are connected into the composite beam, wherein the cross beam and the longitudinal beam are vertically installed, a first connecting assembly used for reinforcing the joint of the cross beam and the longitudinal beam is arranged between the cross beam and the longitudinal beam, and a second connecting assembly used for reinforcing the joint of two adjacent longitudinal beams is arranged between two adjacent longitudinal beams.
As a preferable scheme of the present invention, the second connecting assembly includes a fixing plate fixedly mounted on a web of the longitudinal beam by a bolt, a transition support plate perpendicular to the fixing plate is disposed at a position of a central axis of the fixing plate, which is away from a side of the web of the cross beam and along an extending direction of the longitudinal beam, two sides of the transition support plate are respectively provided with a connecting plate for connecting upper flanges of two adjacent longitudinal beams and lower flanges of two adjacent longitudinal beams, and the transition support plate is provided with an adjusting assembly for adjusting a position of the connecting plate.
As a preferred scheme of the invention, the adjusting assembly comprises a plurality of high-strength bolts fixedly mounted on the connecting plate, the transition support plate is provided with through holes matched with the high-strength bolts, the high-strength bolts are arranged by penetrating through the through holes, and adjusting nuts screwed on the high-strength bolts through threads are arranged on one side of the transition support plate facing the connecting plate.
In a preferred embodiment of the present invention, the length value of the high-strength bolt is greater than a half height value of the longitudinal beam web and less than a two-thirds height value of the longitudinal beam web.
As a preferable scheme of the present invention, two second connecting assemblies for connecting two adjacent longitudinal beams are provided, and the two second connecting assemblies are respectively provided on the left and right sides of the longitudinal beam.
As a preferred scheme of the present invention, a plurality of positioning holes are formed in the connecting plate, positioning bolts matched with the positioning holes are respectively disposed on the upper flange and the lower flange of the longitudinal beam, the connecting plate is fixedly connected to the upper flange or the lower flange of the longitudinal beam through fixing nuts screwed on the positioning bolts, and the positioning bolts on the upper flange and the positioning bolts on the lower flange of the longitudinal beam are arranged in a staggered manner.
As a preferable aspect of the present invention, the first connecting assembly and the second connecting assembly have the same structure, the transition support plate and the connecting plate in the first connecting assembly are both L-shaped structures, and a connecting groove for embedding a beam web is provided at a position of a longitudinal central axis of the fixing plate in the first connecting assembly.
As a preferable scheme of the present invention, two ends of the beam web are provided with an elongated section, the length of the elongated section is greater than one half of the width of the upper flange or the lower flange of the longitudinal beam, and the longitudinal beam web is connected to the fixing plate in the first connecting assembly through a bolt penetrating through the connecting groove and the elongated section.
A mounting construction method of a cantilever type steel-concrete I-shaped composite beam, which adopts the steel-concrete I-shaped composite beam according to any one of claims 1 to 7, and comprises the following steps:
step S100, placing a second connecting assembly between an upper flange and a lower flange of a joint of two adjacent longitudinal beams, and fixing a fixing plate on a web plate of the longitudinal beam through a bolt;
step S200, rotating an adjusting nut to enable a connecting plate to abut against an upper flange or a lower flange of the longitudinal beam, and rotatably connecting the nut on a positioning bolt to connect the connecting plate with the upper flange or the lower flange of the longitudinal beam so as to complete connection between the longitudinal beam and the longitudinal beam;
step S300, repeating the step S100 and the step S200 to complete the connection between the cross beam and the longitudinal beam;
and S400, repeating the steps S100 to S300 to complete the assembly of the combined beam.
As a preferred scheme of the present invention, the basis for determining the fixing stability of the connecting plate is as follows: after the adjusting nut is fastened, the adjusting nut is screwed on the positioning bolt through threads and cannot move for fixing the connecting plate.
The embodiment of the invention has the following advantages:
when the connecting device is used, the connection between the beams is realized through the first connecting assembly and the second connecting assembly, further, when the force is applied, the force for deforming the connecting position of the beam body and the beam body can be uniformly distributed to one end of the two connected beam bodies through the first connecting assembly or the second connecting assembly, the applied force is jointly born by the beam body and the first connecting assembly or the second connecting assembly, most of the force can be avoided being born by the positioning bolt, and the problem that the positioning bolt is broken when the positioning bolt is subjected to larger force due to aging of the positioning bolt can be easily caused when the positioning bolt is used for a long time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, should still fall within the scope of the present invention.
FIG. 1 is a schematic structural view of a second connecting assembly according to an embodiment of the present invention;
FIG. 2 is a schematic structural diagram of a first connecting assembly according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connection structure of a cross beam and a longitudinal beam in the embodiment of the invention;
FIG. 4 is a schematic structural view of a cross beam in an embodiment of the present invention;
FIG. 5 is a perspective view of a second connection assembly in accordance with an embodiment of the present invention;
fig. 6 is a perspective view of a first coupling assembly in an embodiment of the present invention.
In the figure:
1-a cross beam; 2-longitudinal beams; 3-a first connection assembly; 4-a second connection assembly;
301-connecting grooves; 302-an elongated section;
401-fixing plate; 402-transition support plate; 403-connecting plate; 404-a regulating component; 405-a high-strength bolt; 406-a via hole; 407-adjusting nut; 408-positioning holes; 409-positioning bolts; 410-fixing the nut.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. 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.
As shown in fig. 1 to 6, the invention provides a cantilever type steel-concrete i-shaped composite beam, which comprises a cross beam 1 and a longitudinal beam 2 connected into the composite beam, wherein the cross beam 1 and the longitudinal beam 2 are vertically installed, the installation angle of the cross beam 1 and the longitudinal beam 2 can be correspondingly adjusted in the actual installation process, a first connecting component 3 for reinforcing the joint of the cross beam 1 and the longitudinal beam 2 is arranged between the cross beam 1 and the longitudinal beam 2, and a second connecting component 4 for reinforcing the joint of two adjacent longitudinal beams 2 is arranged between two adjacent longitudinal beams 2.
The cross beams 1 and the longitudinal beams 2 are preferably I-shaped steel or H-shaped steel, in addition, a plurality of reinforcing ribs are arranged on webs of the cross beams 1 and the longitudinal beams 2 to enhance the structural strength of the cross beams, dense fixing nails are also arranged on the surfaces of the upper flanges of the cross beams 1 and the longitudinal beams 2, namely, after a complete bridge deck supporting module is assembled by the cross beams 1 and the longitudinal beams 2, the prefabricated concrete bridge deck is conveniently placed on the surfaces of the bridge deck supporting module, and then the bridge deck and the bridge deck supporting module can be integrally formed by pouring C50 concrete.
As shown in fig. 1, 3 and 5, the second connecting assembly 4 includes a fixing plate 401 fixedly mounted on the web of the longitudinal beam 2 by bolts, a transition support plate 402 which is perpendicular to the fixing plate 401 is arranged at the central axis position of the fixing plate 401 which is far away from the web of the cross beam 1 and along the extending direction of the longitudinal beams 2, two sides of the transition support plate 402 are respectively provided with a connecting plate 403 for connecting the upper flanges of two adjacent longitudinal beams 2 and the lower flanges of two adjacent longitudinal beams 2, and an adjusting component 404 for adjusting the position of the connecting plate 403 is arranged on the transition support plate 402, the transition support plate 402 and the fixing plate 401 are of an integrated structure, so that the problem of potential safety hazard easily caused by connection in a welding manner is prevented, here, the side of the fixing plate 401 facing the web and the side of the connecting plate 403 facing the upper or lower flange are provided with anti-slip rubber pads for improving the stability of the connecting plate during connection.
When needing to be noted, the adjusting components 404 on two sides of the transition support plate 402 are arranged in a staggered manner, so that the fixing plate 401 can be conveniently installed, and meanwhile, the force can be more uniformly distributed to the whole second connecting component 4 when the fixing plate is stressed.
The adjusting assembly 404 comprises a plurality of high-strength bolts 405 fixedly mounted on the connecting plate 403, through holes 406 matched with the high-strength bolts 405 are formed in the transition support plate 402, the high-strength bolts 405 are arranged to penetrate through the through holes 406, and adjusting nuts 407 screwed on the high-strength bolts 405 through threads are arranged on one side, facing the connecting plate 403, of the transition support plate 402.
In order to prevent the problem that the connecting plate 403 is easy to fall off from the excessive supporting plate 402 when the fixing plate 401 is installed, a rubber sleeve which is detachable and is matched with the through hole 406 can be sleeved on the high-strength bolt 405, the fixing of the connecting plate 403 is realized through the friction force between the rubber sleeve and the through hole 406, and when the position of the connecting plate 403 needs to be adjusted, the rubber sleeve can be detached, so that the use is more convenient.
A plurality of positioning holes 408 are formed in the connecting plate 403, positioning bolts 409 matched with the positioning holes 408 are arranged on the upper flange of the longitudinal beam 2 and the lower flange of the longitudinal beam 2, the connecting plate 403 is fixedly connected with the upper flange of the longitudinal beam 2 or the lower flange of the longitudinal beam 2 through fixing nuts 410 screwed on the positioning bolts 409, and the positioning bolts 409 on the upper flange of the longitudinal beam 2 and the positioning bolts 409 on the lower flange of the longitudinal beam 2 are arranged in a staggered manner.
During use, the fixing plate 401 needs to be fixed on the web of the longitudinal beam 2 through a bolt, then the adjusting nut 407 is rotated to enable the connecting plate 403 to abut against the upper flange of the longitudinal beam 2 or the lower flange of the longitudinal beam 2, in the process, the connecting plate 403 can be matched with the positioning bolt 409 through the through hole 406, and after the connecting plate 403 is matched with the upper flange of the longitudinal beam 2 or the lower flange of the longitudinal beam 2, the connecting plate 403 can be connected with the upper flange of the longitudinal beam 2 or the lower flange of the longitudinal beam 2 through screwing a nut on the positioning bolt 409.
It should be noted that after the adjusting nut 407 is screwed, the nut screwed on the positioning bolt 409 and used for fixing the connecting plate 403 needs to be checked to avoid the problem that the beam body connection is unstable due to the looseness.
The length numerical value of high-strength bolt 405 is greater than 2 web half height numerical values of longeron and is less than 2 web two-thirds height numerical values of longeron, promptly when using, two connecting plates 403 shrink back together, can reserve sufficient space and guarantee when the first connecting assembly of installation, connecting plate 403 can not receive positioning bolt 409 to block, also can avoid high-strength bolt 405 excessive length in addition, lead to unable effectual making connecting plate 403 and longeron 2 top flange or longeron 2 bottom flange problem that closely leans on together through high-strength bolt 405.
The second connecting assemblies 4 for connecting the two adjacent longitudinal beams 2 are provided with two, and the two second connecting assemblies 4 are respectively arranged on the left side and the right side of the longitudinal beams 2 so as to ensure the stability of connection of the longitudinal beams 2.
As shown in fig. 2, 3, 4 and 6, the first connecting component 3 and the second connecting component 4 have the same structure, the transition support plate 402 and the connecting plate 403 in the first connecting component 3 are both L-shaped structures, and the connecting groove 301 for embedding the web of the beam 1 is provided at the position of the longitudinal central axis of the fixing plate 401 in the first connecting component 3.
The connection mode between the longitudinal beam 2 and the cross beam 1 is similar to that between the longitudinal beam 2 and the longitudinal beam 2, that is, before the longitudinal beam 2 and the cross beam 1 are connected, the first connecting component 3 needs to be installed on the longitudinal beam 2, and then the longitudinal beam 2 needs to be inserted into the connecting groove 301, and then the installation between the longitudinal beam 2 and the cross beam 1 can be completed according to a flow similar to the installation mode of the second connecting component 4.
The two ends of the web of the cross beam 1 are both provided with lengthened sections 302, the length of the lengthened sections 302 is greater than one half of the width of the upper flange of the longitudinal beam 2 or the width of the lower flange of the longitudinal beam 2, and the web of the longitudinal beam 2 is connected with a fixing plate 401 in the first connecting component 3 through bolts penetrating through the connecting grooves 301 and the lengthened sections 302.
The structure mainly ensures that the upper flange of the cross beam 1 or the lower flange of the cross beam 1 can be attached to the upper flange of the longitudinal beam 2 or the lower flange of the longitudinal beam 2 to form a plane after the longitudinal beam 2 is installed, and the connection strength between the cross beam 1 and the longitudinal beam 2 is increased conveniently and subsequently in a welding mode.
A mounting construction method of a cantilever type steel-concrete I-shaped composite beam comprises the following steps:
step S100, placing a second connecting assembly between an upper flange and a lower flange of a joint of two adjacent longitudinal beams, and fixing a fixing plate on a web plate of the longitudinal beam through a bolt;
step S200, rotating an adjusting nut to enable a connecting plate to abut against an upper flange or a lower flange of the longitudinal beam, and rotatably connecting the nut on a positioning bolt to connect the connecting plate with the upper flange or the lower flange of the longitudinal beam so as to complete connection between the longitudinal beam and the longitudinal beam;
step S300, repeating the step S100 and the step S200 to complete the connection between the cross beam and the longitudinal beam;
and S400, repeating the steps S100 to S300 to complete the assembly of the combined beam.
The basis for judging the fixation and stability of the connecting plate is as follows: after the adjusting nut is fastened, the adjusting nut is screwed on the positioning bolt through threads and cannot move for fixing the connecting plate.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The cantilever type steel-concrete I-shaped composite beam is characterized by comprising a cross beam (1) and a longitudinal beam (2) which are connected into the composite beam, wherein the cross beam (1) and the longitudinal beam (2) are vertically installed, a first connecting assembly (3) used for reinforcing the joint of the cross beam (1) and the longitudinal beam (2) is arranged between the cross beam (1) and the longitudinal beam (2), and a second connecting assembly (4) used for reinforcing the joint of two adjacent longitudinal beams (2) is arranged between two adjacent longitudinal beams (2);
the second connecting assembly (4) comprises a fixing plate (401) fixedly mounted on a web of the longitudinal beam (2) through bolts, an excessive supporting plate (402) perpendicular to the fixing plate (401) is arranged on one side, away from the web of the cross beam (1), of the fixing plate (401) and along the central axis position of the extending direction of the longitudinal beam (2), connecting plates (403) used for connecting upper flanges of two adjacent longitudinal beams (2) and lower flanges of two adjacent longitudinal beams (2) are arranged on two sides of the excessive supporting plate (402), and an adjusting assembly (404) used for adjusting the positions of the connecting plates (403) is arranged on the excessive supporting plate (402);
adjusting part (404) including a plurality of high-strength bolt (405) of fixed mounting on connecting plate (403), transition backup pad (402) seted up with high-strength bolt (405) assorted through-hole (406), high-strength bolt (405) are for running through hole (406) setting, and transition backup pad (402) is provided with adjusting nut (407) of screwing in high-strength bolt (405) through the screw towards one side of connecting plate (403).
2. A cantilevered steel-concrete i-section composite beam according to claim 1, characterized in that the length of said high-strength bolt (405) has a value greater than one-half the height of the web of the stringer (2) and less than two-thirds the height of the web of the stringer (2).
3. The cantilever type steel-concrete I-shaped composite beam according to claim 1, characterized in that two second connecting assemblies (4) for connecting two adjacent longitudinal beams (2) are arranged, and the two second connecting assemblies (4) are respectively arranged at the left side and the right side of the longitudinal beams (2).
4. The cantilever type steel-concrete I-shaped composite beam according to claim 1, wherein a plurality of positioning holes (408) are formed in the connecting plate (403), positioning bolts (409) matched with the positioning holes (408) are arranged on both the upper flange of the longitudinal beam (2) and the lower flange of the longitudinal beam (2), the connecting plate (403) is fixedly connected with the upper flange of the longitudinal beam (2) or the lower flange of the longitudinal beam (2) through fixing nuts (410) screwed on the positioning bolts (409), and the positioning bolts (409) on the upper flange of the longitudinal beam (2) and the positioning bolts (409) on the lower flange of the longitudinal beam (2) are arranged in a staggered manner.
5. The cantilever type steel-concrete I-shaped composite beam according to claim 1, wherein the first connecting component (3) and the second connecting component (4) have the same structure, the transition support plate (402) and the connecting plate (403) in the first connecting component (3) are both L-shaped structures, and the connecting groove (301) for embedding the web of the cross beam (1) is arranged at the longitudinal central axis position of the fixing plate (401) in the first connecting component (3).
6. The cantilever type steel-concrete I-shaped composite beam according to claim 5, wherein the two ends of the web plate of the cross beam (1) are provided with the lengthened sections (302), the length of the lengthened sections (302) is greater than one half of the width of the upper flange of the longitudinal beam (2) or the width of the lower flange of the longitudinal beam (2), and the web plate of the longitudinal beam (2) is connected with the fixing plate (401) in the first connecting assembly (3) through bolts penetrating through the connecting grooves (301) and the lengthened sections (302).
7. A mounting construction method of a cantilever type steel-concrete I-shaped composite beam is characterized in that the mounting construction method adopts the steel-concrete I-shaped composite beam according to any one of claims 1 to 6, and the mounting construction method comprises the following steps:
step S100, placing a second connecting assembly between an upper flange and a lower flange of a joint of two adjacent longitudinal beams, and fixing a fixing plate on a web plate of the longitudinal beam through a bolt;
step S200, rotating an adjusting nut to enable a connecting plate to abut against an upper flange or a lower flange of the longitudinal beam, and rotatably connecting the nut on a positioning bolt to connect the connecting plate with the upper flange or the lower flange of the longitudinal beam so as to complete connection between the longitudinal beam and the longitudinal beam;
step S300, repeating the step S100 and the step S200 to complete the connection between the cross beam and the longitudinal beam;
and S400, repeating the steps S100 to S300 to complete the assembly of the combined beam.
8. The installation and construction method of the cantilever type steel-concrete I-shaped composite beam according to claim 7, wherein the basis for judging the fixation stability of the connecting plate is as follows: after the adjusting nut is fastened, the adjusting nut is screwed on the positioning bolt through threads and cannot move for fixing the connecting plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202010296155.XA CN111519514B (en) | 2020-04-15 | 2020-04-15 | Cantilever type steel-concrete I-shaped composite beam and installation and construction method |
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| CN202010296155.XA CN111519514B (en) | 2020-04-15 | 2020-04-15 | Cantilever type steel-concrete I-shaped composite beam and installation and construction method |
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| CN111519514B true CN111519514B (en) | 2021-11-23 |
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| KR100758994B1 (en) * | 2007-03-14 | 2007-09-17 | 주식회사 스틸코리아 | Reinforced beam with vertical h-steel or i-steel for stiffness, the construction structure and bridge construction method using the same |
| KR20100007300A (en) * | 2008-07-14 | 2010-01-22 | 한국건설기술연구원 | A steel composite bridge having steel plates connected by using concrete cross beams and its constructing method |
| JP2013194421A (en) * | 2012-03-19 | 2013-09-30 | Saitama Univ | Bridge and joint plate |
| CN106758741A (en) * | 2016-12-08 | 2017-05-31 | 湖北华舟重工应急装备股份有限公司 | Modular box type plate beam structure and the pontic erection method based on box type plate beam structure |
| JP2018096042A (en) * | 2016-12-08 | 2018-06-21 | 株式会社高知丸高 | Main girder for bridge, bridge having same main girder, and bridge construction method |
| CN110184891A (en) * | 2019-05-07 | 2019-08-30 | 中铁工程设计咨询集团有限公司 | A kind of hot-rolling H-shaped steel reinforced concrete combination beam |
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2020
- 2020-04-15 CN CN202010296155.XA patent/CN111519514B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100758994B1 (en) * | 2007-03-14 | 2007-09-17 | 주식회사 스틸코리아 | Reinforced beam with vertical h-steel or i-steel for stiffness, the construction structure and bridge construction method using the same |
| KR20100007300A (en) * | 2008-07-14 | 2010-01-22 | 한국건설기술연구원 | A steel composite bridge having steel plates connected by using concrete cross beams and its constructing method |
| JP2013194421A (en) * | 2012-03-19 | 2013-09-30 | Saitama Univ | Bridge and joint plate |
| CN106758741A (en) * | 2016-12-08 | 2017-05-31 | 湖北华舟重工应急装备股份有限公司 | Modular box type plate beam structure and the pontic erection method based on box type plate beam structure |
| JP2018096042A (en) * | 2016-12-08 | 2018-06-21 | 株式会社高知丸高 | Main girder for bridge, bridge having same main girder, and bridge construction method |
| CN110184891A (en) * | 2019-05-07 | 2019-08-30 | 中铁工程设计咨询集团有限公司 | A kind of hot-rolling H-shaped steel reinforced concrete combination beam |
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