CN108221648B - Novel steel pipe concrete bridge pier embedded with mild steel and having recovery function - Google Patents
Novel steel pipe concrete bridge pier embedded with mild steel and having recovery function Download PDFInfo
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- CN108221648B CN108221648B CN201810171879.4A CN201810171879A CN108221648B CN 108221648 B CN108221648 B CN 108221648B CN 201810171879 A CN201810171879 A CN 201810171879A CN 108221648 B CN108221648 B CN 108221648B
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D19/00—Structural or constructional details of bridges
- E01D19/02—Piers; Abutments ; Protecting same against drifting ice
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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
- E01D2101/00—Material constitution of bridges
- E01D2101/20—Concrete, stone or stone-like material
- E01D2101/24—Concrete
- E01D2101/26—Concrete reinforced
- E01D2101/268—Composite concrete-metal
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A30/00—Adapting or protecting infrastructure or their operation
- Y02A30/30—Adapting or protecting infrastructure or their operation in transportation, e.g. on roads, waterways or railways
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- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention provides a novel steel tube concrete pier embedded with mild steel and having a recovery function, which is characterized by comprising a replacement column and a continuous use column; the replacement column comprises a first replacement column arranged at the upper end of the continuous use column and a second replacement column arranged at the lower end of the continuous use column; the first replacement column and the second replacement column comprise outer wall round steel pipes, cross-shaped buckling restrained soft steel inner cores arranged in the outer wall round steel pipes along the central axis direction and ductile steel pipe concrete wrapping the cross-shaped buckling restrained soft steel inner cores and arranged in the outer wall round steel pipes; by the adoption of the technical scheme, the pier has stronger energy consumption capability and better earthquake resistance.
Description
Technical Field
The invention relates to the field of civil engineering, in particular to a novel steel tube concrete pier embedded with mild steel and having a recovery function.
Background
Nowadays, along with the rapid development of economy in China and the development of economy, the number of infrastructure construction is quite large, and many highway bridges are in the form of reinforced concrete continuous beam bridges. Many times of earthquakes at home and abroad show that the bridge structure is taken as an important component in a traffic life line, and has great significance for post-disaster first aid and recovery reconstruction. The bridge pier is a main bearing structure of the bridge and bears vertical load and horizontal load transmitted by the upper structure. For a general bridge, the bridge pier plays a role in controlling the anti-seismic performance of the full bridge, and is a primary component for ensuring the safety of the bridge. The traditional portal bridge pier adopts a reinforced concrete structural form, and the reinforced concrete portal bridge pier has large self weight, poor ductility, high construction difficulty, long construction period, high repair difficulty and high cost. Several destructive earthquakes of nineties of the last century (a Loma praeta earthquake in us Mapu of 1989, a northridge earthquake in us 1994, a great earthquake of osaka in 1995, a San Fernado earthquake in us Fei Na of 1997, a taiwan collection earthquake in china 1999), and a wenchun earthquake in china of the early era of this century, a Qinghai jade tree earthquake, all cause serious damages to local bridge structures, resulting in huge loss of lives and property. Because of uncertainty and complexity of earthquake, the building is often subjected to earthquake action exceeding the intensity of fortification, so that the building is difficult to repair, normal life of people is seriously influenced, and meanwhile, the long downtime and great cost of repair caused by repair cause huge social and economic losses.
The bridge belongs to a 'head and foot light' structure, and most of mass is concentrated in an upper structure. Under the action of earthquake, the strength and the rigidity of the upper structure are large enough, so that the ductility performance is relatively good, and the upper structure is rarely directly damaged in past earthquake. The lower pier structure is more easily damaged than the upper structure. At present, reinforced concrete piers are mainly used in China, and the piers are high in rigidity and strength, but poor in ductility and energy consumption capability, and show a certain vulnerability in the past major earthquakes. The experience of earthquake damage at home and abroad shows that the serious damage of the lower reinforced concrete pier structure is a main cause for collapse of the bridge and difficult repair and use after earthquake.
Disclosure of Invention
The invention aims to overcome the defects in the prior art, and provides the novel steel tube concrete pier with the built-in soft steel and the recovery function, so that the pier has stronger energy consumption capability and better anti-seismic performance; and the earthquake resistance of the pier can be rapidly detected and assessed after earthquake, and the earthquake resistance of the reinforced round steel tube concrete pier can be rapidly repaired.
In order to solve the technical problems, the invention provides a novel steel tube concrete pier with embedded mild steel and recovery function, which comprises a replacement column and a continuous use column; the replacement column comprises a first replacement column arranged at the upper end of the continuous use column and a second replacement column arranged at the lower end of the continuous use column;
the first replacement column and the second replacement column comprise outer wall round steel pipes, cross-shaped buckling restrained soft steel inner cores arranged in the outer wall round steel pipes along the central axis direction and ductile steel pipe concrete wrapping the cross-shaped buckling restrained soft steel inner cores and arranged in the outer wall round steel pipes; the cross-shaped buckling-restrained soft steel inner core is perpendicular to the central shaft, and the cross-shaped buckling-restrained soft steel inner core is cross-shaped; the two ends of the first replacement column are respectively welded with a first upper connecting part and a first lower connecting part, and the two ends of the second replacement column are respectively welded with a second upper connecting part and a second lower connecting part; the two ends of the continuous use column are welded with a third upper connecting part and a third lower connecting part;
two ends of the cross-shaped buckling restrained soft steel inner core in the first replacement column and the second replacement column are respectively connected with the first upper connecting part, the first lower connecting part, the second upper connecting part and the second lower connecting part; the cross-shaped buckling restrained soft steel inner core is not contacted with the outer wall round steel pipe; the cross-shaped buckling restrained soft steel inner core in the first replacement column is provided with a detection column with a part exposed out of the outer wall round steel pipe along the direction away from the second replacement column, and the detection column is used for evaluating the earthquake resistance of the pier after earthquake; the first upper connecting part is arranged at one end of the detection column far away from the second replacement column; the detection column comprises a transverse detection column and a longitudinal detection column; the front and rear sides of the transverse detection column and the left and right sides of the longitudinal detection column are respectively provided with transverse stiffening ribs perpendicular to the central shaft, and the front and rear sides of the transverse detection column and the left and right sides of the longitudinal detection column are uniformly provided with a plurality of longitudinal stiffening ribs parallel to the central shaft; the first lower connecting part is detachably connected with the third upper connecting part, and the second upper connecting part is detachably connected with the third lower connecting part;
the surface of the cross-shaped buckling restrained soft steel inner core is covered with an anti-adhesion film which is used for eliminating adhesion between the cross-shaped buckling restrained soft steel inner core and ductile steel pipe concrete.
In a preferred embodiment, the number of transverse and longitudinal stiffeners is proportional to the cross-sectional dimension and the radial to thickness ratio of the replacement column.
In a preferred embodiment, two ends of the buckling restrained soft steel inner cores in the first replacement column and the second replacement column are respectively welded and connected with the first upper connecting portion, the first lower connecting portion, the second upper connecting portion and the second lower connecting portion.
In a preferred embodiment, the anti-adhesive film is embodied as a polyvinyl chloride film.
In a preferred embodiment, the first upper connection portion, the first lower connection portion, the second upper connection portion, the second lower connection portion, the third upper connection portion, and the third lower connection portion are connection plates; the connecting plates which are detachably connected with each other are uniformly provided with bolt holes along the circumferential direction, and the connecting plates are detachably connected through high-strength bolts.
In a preferred embodiment, the device further comprises a bridge and a base; the first upper connecting part is arranged close to the bridge, and the bridge is connected with the first upper connecting part through a bridge connecting piece; the third lower connecting part is arranged close to the base; and the base is connected with the third lower connecting part through a base connecting piece.
In a preferred embodiment, the bridge connecting piece and the base connecting piece are specifically connecting plates, and the bridge connecting piece and the base connecting piece are detachably connected with the first upper connecting portion and the third lower connecting portion through high-strength bolts respectively.
In a preferred embodiment, the height of the outer wall round steel pipe is 1.0 to 1.2 times the cross-sectional diameter of the ductile steel pipe concrete.
In a preferred embodiment, the continuous use column comprises a main outer wall round steel pipe, a straight steel plate inner core arranged inside the main outer wall round steel pipe along the central axis direction, and common steel pipe concrete wrapping the straight steel plate inner core and arranged inside the main outer wall round steel pipe; the straight steel plate inner core is specifically a straight buckling-restrained soft steel inner core with a straight cross section.
Compared with the prior art, the technical scheme of the invention has the following beneficial effects:
1. through the arrangement of the cross buckling restrained soft steel inner core, the pier has the outward buckling deformation tendency when being pressed, but the outward buckling deformation is limited by the round steel pipe concrete; when the replacement column bears the tensile force, the cross-shaped buckling-restrained soft steel inner core stretches and is separated from the concrete, the internal concrete cannot be pulled apart, and when the replacement column bears the compressive force, the cross-shaped buckling-restrained soft steel inner core and the concrete are stressed together. Therefore, the embedded cross-shaped mild steel plate round steel tube concrete bridge pier has strong energy consumption capability, excellent earthquake resistance, simple and reasonable structure, definite force transmission and good economic effect.
2. By arranging the anti-adhesion film on the surface of the cross-shaped anti-buckling soft steel inner core, when the replacement column bears tension, the adhesion between the cross-shaped anti-buckling soft steel inner core and the steel pipe concrete is eliminated better.
3. Through setting up the spliced pole and making maintainer can detect fast after the shake and assess round steel pipe concrete pier's shock resistance, the shock resistance of reinforcement round steel pipe concrete pier is restoreed rapidly, guarantees to remain unblocked as the bridge of life line engineering, has vital function to post-shake emergency rescue and post-disaster reconstruction.
4. The components of the round steel pipe concrete bridge pier, including the cross buckling restrained soft steel inner core, the connecting plate, the transverse stiffening ribs and the longitudinal stiffening ribs, can be manufactured in factories and only need to be hoisted on site. Even the round steel pipe outer wall can be used as a template for in-situ pouring. For the road section with large urban traffic flow, the round steel pipe concrete pier can greatly shorten the traffic control time, and also can greatly accelerate the road repair speed after earthquake and sudden accidents, and has short construction period and quick construction.
Drawings
FIG. 1 is a schematic diagram of the overall structure of a concrete filled steel tube pier with a restoration function and embedded with mild steel in a preferred embodiment of the invention;
FIG. 2 is a top view of a concrete filled steel tube pier detection column with restoration function of the novel embedded mild steel in the preferred embodiment of the invention;
FIG. 3 is a front view of a concrete filled steel tube pier detection column with restoration function of the novel embedded mild steel in the preferred embodiment of the invention;
FIG. 4 is a sectional view of a concrete filled steel tube pier replacement column with restoration function with new type of embedded mild steel on section 1-1 in the preferred embodiment of the invention;
fig. 5 is a sectional view of a 2-2 section of a post for a concrete filled steel tube pier with restoration function embedded with mild steel according to a preferred embodiment of the present invention.
Detailed Description
The invention is further described below with reference to the drawings and detailed description.
A novel steel tube concrete pier with embedded mild steel and recovery function comprises a replacement column and a continuous use column 3; the replacement column comprises a first replacement column 1 arranged at the upper end of the continuous use column 3 and a second replacement column 2 arranged at the lower end of the continuous use column 3; when an earthquake happens, the replacement column is used as a main stress part to bear the pressure and the tension brought by the earthquake and is used as a part which is damaged at first, and when the replacement column is damaged, the replacement column is convenient to replace, and the post-disaster reconstruction work is timely implemented.
The main structure of the replacement column is as follows: the first replacement column 1 and the second replacement column 2 comprise outer wall round steel pipes 13 and 23, cross-shaped buckling restrained soft steel inner cores 11 and 21 which are arranged in the outer wall round steel pipes 13 and 23 along the central axis direction, and ductile steel pipe concrete 12 and 22 which wrap the cross-shaped buckling restrained soft steel inner cores 11 and 21 and are arranged in the outer wall round steel pipes 13 and 23; the cross-shaped buckling restrained soft steel inner cores 11 and 21 are cross-shaped in cross section perpendicular to the central shaft; the height of the outer wall round steel pipes 13, 23 is 1.0 to 1.2 times the diameter of the cross section of the ductile steel pipe concrete 12, 22. In order to connect the replacement column with the continuous use column 3, the two ends of the first replacement column 1 are respectively welded with a first upper connecting part 15 and a first lower connecting part 16, and the two ends of the second replacement column 2 are respectively welded with a second upper connecting part 24 and a second lower connecting part 25; the third upper connecting portion 34 and the third lower connecting portion 35 are welded to both ends of the continuous use column 3. Through the arrangement of the cross buckling restrained soft steel inner cores 11 and 21, the pier has outward buckling deformation tendency when being pressed, but the outward buckling deformation is limited by round steel pipe concrete; when the replacement column is subjected to tensile force, the cross-shaped buckling-restrained soft steel inner cores 11 and 21 stretch and are separated from the concrete, so that the internal concrete cannot be pulled apart, and when the replacement column is subjected to compressive force, the cross-shaped buckling-restrained soft steel inner cores 11 and 21 and the concrete are stressed together. Therefore, the embedded cross-shaped mild steel plate round steel tube concrete bridge pier has strong energy consumption capability, excellent earthquake resistance, simple and reasonable structure, definite force transmission and good economic effect.
The main structure of the continuous use column 3 is as follows: the continuous use column 3 comprises a main outer wall round steel pipe 33, a straight steel plate inner core 31 arranged inside the main outer wall round steel pipe 33 along the central axis direction, and common steel pipe concrete 32 wrapping the straight steel plate inner core 31 and arranged inside the main outer wall round steel pipe 33; the in-line steel plate inner core 31 is specifically an in-line buckling restrained soft steel inner core with an in-line cross section.
The connection relationship between the replacement column and the continuous use column 3 is: two ends of the cross-shaped buckling restrained soft steel inner cores 11 and 21 in the first replacement column 1 and the second replacement column 2 are respectively connected with a first upper connecting part 15, a first lower connecting part 16, a second upper connecting part 24 and a second lower connecting part 25; the cross-shaped buckling restrained soft steel inner cores 11 and 21 are not contacted with the outer wall round steel pipes 13 and 23; the two ends of the buckling restrained soft steel inner cores in the first replacement column 1 and the second replacement column 2 are respectively welded and connected with the first upper connecting part 15, the first lower connecting part 16, the second upper connecting part 24 and the second lower connecting part 25.
In order to realize rapid assessment of the earthquake resistance of the round steel pipe pier after earthquake, detection columns 14 of which parts are exposed to the outer wall round steel pipes 13 and 23 are arranged on the cross-shaped buckling-restrained soft steel inner cores 11 and 21 in the first replacement column 1 along the direction away from the second replacement column 2 and are used for assessing the earthquake resistance of the pier after earthquake; the first upper connecting part 15 is arranged at one end of the detection column 14 away from the second replacement column 2; the detection column 14 comprises a transverse detection column 142 and a longitudinal detection column 141; the front and rear sides of the transverse detecting column 142 and the left and right sides of the longitudinal detecting column 141 are respectively provided with transverse stiffening ribs 143 perpendicular to the central axis, and the front and rear sides of the transverse detecting column 142 and the left and right sides of the longitudinal detecting column 141 are respectively provided with a plurality of longitudinal stiffening ribs 144 parallel to the central axis; the number of transverse stiffeners 143 and longitudinal stiffeners 144 is proportional to the cross-sectional size and the radial to thickness ratio of the replacement column. The first lower connecting portion 16 is detachably connected to the third upper connecting portion 34, and the second upper connecting portion 24 is detachably connected to the third lower connecting portion 35. By arranging the detection column 14, maintenance personnel can rapidly detect and evaluate the earthquake resistance of the round steel pipe concrete bridge pier after earthquake, rapidly repair the earthquake resistance of the reinforced round steel pipe concrete bridge pier, ensure that the bridge 4 serving as a life line engineering is kept smooth, and play a vital role in post-earthquake emergency rescue and post-disaster reconstruction.
In order to better eliminate the adhesion between the cross-shaped buckling restrained soft steel inner cores 11 and 21 and the steel pipe concrete, the surfaces of the cross-shaped buckling restrained soft steel inner cores 11 and 21 are covered with anti-adhesion films. Specifically, the anti-adhesion film is specifically a polyvinyl chloride film, and other anti-adhesion films can be used instead, so that the anti-adhesion film belongs to simple replacement and cannot limit the protection scope of the invention.
In order to facilitate the assembly of the pier and the disassembly and reconstruction after disaster, specifically, the first upper connecting portion 15, the first lower connecting portion 16, the second upper connecting portion 24, the second lower connecting portion 25, the third upper connecting portion 34 and the third lower connecting portion 35 are all connecting plates; the connecting plates which are detachably connected with each other are uniformly provided with bolt holes along the circumferential direction, and the connecting plates are detachably connected through high-strength bolts.
The complete pier also comprises a bridge 4 and a base 5; the first upper connecting part 15 is arranged close to the bridge 4, and the bridge 4 is connected with the first upper connecting part 15 through a bridge connecting piece 41; the third lower connecting part 35 is arranged close to the base 5; and the base 5 is connected to the third lower connection part 35 by a base connection member 51. In order to facilitate connection with the replacement column, the bridge connector 41 and the base connector 51 are also specifically connection plates, and the bridge connector 41 and the base connector 51 are detachably connected with the first upper connection portion 15 and the third lower connection portion 35 through high-strength bolts, respectively.
The various components, including the cross-shaped buckling restrained soft steel inner cores 11 and 21, the straight steel plate inner cores 31, the connecting plates, the transverse stiffening ribs 143 and the longitudinal stiffening ribs 144, can be manufactured in factories and only need to be hoisted on site. Even round steel pipe 33 with round steel pipe outer wall and main outer wall can be used as template for casting in situ. For the road section with large urban traffic flow, the round steel pipe concrete pier can greatly shorten the traffic control time, and also can greatly accelerate the road repair speed after earthquake and sudden accidents, and has short construction period and quick construction.
The foregoing is only a preferred embodiment of the present invention, but the design concept of the present invention is not limited thereto, and any person skilled in the art will be able to make insubstantial modifications of the present invention within the scope of the present invention disclosed herein by this concept, which falls within the actions of invading the protection scope of the present invention.
Claims (9)
1. The novel steel tube concrete pier with the restoration function and embedded with soft steel is characterized by comprising a replacement column and a continuous use column; the replacement column comprises a first replacement column arranged at the upper end of the continuous use column and a second replacement column arranged at the lower end of the continuous use column;
the first replacement column and the second replacement column comprise outer wall round steel pipes, cross-shaped buckling restrained soft steel inner cores arranged in the outer wall round steel pipes along the central axis direction and ductile steel pipe concrete wrapping the cross-shaped buckling restrained soft steel inner cores and arranged in the outer wall round steel pipes; the cross-shaped buckling-restrained soft steel inner core is perpendicular to the central shaft, and the cross-shaped buckling-restrained soft steel inner core is cross-shaped; the two ends of the first replacement column are respectively welded with a first upper connecting part and a first lower connecting part, and the two ends of the second replacement column are respectively welded with a second upper connecting part and a second lower connecting part; the two ends of the continuous use column are welded with a third upper connecting part and a third lower connecting part;
two ends of the cross-shaped buckling restrained soft steel inner core in the first replacement column and the second replacement column are respectively connected with the first upper connecting part, the first lower connecting part, the second upper connecting part and the second lower connecting part; the cross-shaped buckling restrained soft steel inner core is not contacted with the outer wall round steel pipe; the cross-shaped buckling restrained soft steel inner core in the first replacement column is provided with a detection column with a part exposed out of the outer wall round steel pipe along the direction away from the second replacement column, and the detection column is used for evaluating the earthquake resistance of the pier after earthquake; the first upper connecting part is arranged at one end of the detection column far away from the second replacement column; the detection column comprises a transverse detection column and a longitudinal detection column; the front and rear sides of the transverse detection column and the left and right sides of the longitudinal detection column are respectively provided with transverse stiffening ribs perpendicular to the central shaft, and the front and rear sides of the transverse detection column and the left and right sides of the longitudinal detection column are uniformly provided with a plurality of longitudinal stiffening ribs parallel to the central shaft; the first lower connecting part is detachably connected with the third upper connecting part, and the second upper connecting part is detachably connected with the third lower connecting part;
the surface of the cross-shaped buckling restrained soft steel inner core is covered with an anti-adhesion film which is used for eliminating adhesion between the cross-shaped buckling restrained soft steel inner core and ductile steel pipe concrete.
2. The novel soft steel embedded concrete filled steel tube pier with restoration function according to claim 1, wherein the number of the transverse stiffening ribs and the longitudinal stiffening ribs is proportional to the cross section size and the diameter-thickness ratio of the replacement column.
3. The novel soft steel embedded concrete filled steel tube pier with the recovery function according to claim 1, wherein two ends of the buckling restrained soft steel inner cores in the first replacement column and the second replacement column are welded and connected with the first upper connecting portion, the first lower connecting portion, the second upper connecting portion and the second lower connecting portion respectively.
4. The novel soft steel embedded concrete filled steel tube pier with the recovery function according to claim 1, wherein the anti-adhesion film is specifically a polyvinyl chloride film.
5. The novel soft steel embedded concrete filled steel tube pier with the recovery function according to claim 1, wherein the first upper connecting part, the first lower connecting part, the second upper connecting part, the second lower connecting part, the third upper connecting part and the third lower connecting part are all connecting plates; the connecting plates which are detachably connected with each other are uniformly provided with bolt holes along the circumferential direction, and the connecting plates are detachably connected through high-strength bolts.
6. The novel soft steel embedded concrete filled steel tube pier with the recovery function according to claim 5, which is characterized by further comprising a bridge and a base; the first upper connecting part is arranged close to the bridge, and the bridge is connected with the first upper connecting part through a bridge connecting piece; the third lower connecting part is arranged close to the base; and the base is connected with the third lower connecting part through a base connecting piece.
7. The novel soft steel embedded concrete filled steel tube pier with the recovery function according to claim 6, wherein the bridge connecting piece and the base connecting piece are specifically connecting plates, and the bridge connecting piece and the base connecting piece are detachably connected with the first upper connecting portion and the third lower connecting portion through high-strength bolts respectively.
8. The novel soft steel embedded concrete filled steel tube pier with restoration function according to claim 1, wherein the height of the outer wall round steel tube is 1.0 to 1.2 times of the diameter of the cross section of the ductile concrete filled steel tube.
9. The novel soft steel embedded concrete filled steel tube pier with the recovery function according to claim 1, wherein the continuous use column comprises a main outer wall round steel tube, a straight steel plate inner core arranged inside the main outer wall round steel tube along the central axis direction and common concrete filled steel tube which wraps the straight steel plate inner core and is arranged inside the main outer wall round steel tube; the straight steel plate inner core is specifically a straight buckling-restrained soft steel inner core with a straight cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171879.4A CN108221648B (en) | 2018-03-01 | 2018-03-01 | Novel steel pipe concrete bridge pier embedded with mild steel and having recovery function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810171879.4A CN108221648B (en) | 2018-03-01 | 2018-03-01 | Novel steel pipe concrete bridge pier embedded with mild steel and having recovery function |
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| Publication Number | Publication Date |
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| CN108221648A CN108221648A (en) | 2018-06-29 |
| CN108221648B true CN108221648B (en) | 2023-07-28 |
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Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001131922A (en) * | 1999-11-09 | 2001-05-15 | Mitsubishi Heavy Ind Ltd | Bridge reinforcing method and its structure |
| JP4416337B2 (en) * | 2001-01-31 | 2010-02-17 | 株式会社Ｉｈｉ | Construction method of the replacement composite floor slab girder bridge |
| JP4054856B1 (en) * | 2007-05-22 | 2008-03-05 | 株式会社ヒラヤマエンジニアリング | Pier or bridge structure |
| CN101798851B (en) * | 2010-04-26 | 2011-08-31 | 哈尔滨工业大学 | Combined steel pipe-encased concrete type buckling-restrained brace member |
| JP5714337B2 (en) * | 2011-01-13 | 2015-05-07 | 公益財団法人鉄道総合技術研究所 | Railway viaduct pillar replacement method |
| CN103774547B (en) * | 2014-01-08 | 2015-11-04 | 华侨大学 | The round steel pipe bridge pier of embedded T-shaped Wasted-energy steel plate |
| CN204898508U (en) * | 2015-07-31 | 2015-12-23 | 华侨大学 | Circular steel tube pier of bucking power consumption structure is prevented in root setting |
| CN105386405B (en) * | 2015-12-09 | 2017-04-05 | 北京工业大学 | Based on bolted Precast Concrete Segmental Bridges concrete pier of steel tube |
| CN208105021U (en) * | 2018-03-01 | 2018-11-16 | 华侨大学 | Novel embedded mild steel has the concrete pier of steel tube for restoring function |
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