CN112482202A - Pull rod type multipurpose steel trestle bridge abutment and construction method thereof - Google Patents
Pull rod type multipurpose steel trestle bridge abutment and construction method thereof Download PDFInfo
- Publication number
- CN112482202A CN112482202A CN202011167863.XA CN202011167863A CN112482202A CN 112482202 A CN112482202 A CN 112482202A CN 202011167863 A CN202011167863 A CN 202011167863A CN 112482202 A CN112482202 A CN 112482202A
- Authority
- CN
- China
- Prior art keywords
- steel
- soil
- abutment
- counter
- pull
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Images
Classifications
-
- 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
-
- 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
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/02—Sheet piles or sheet pile bulkheads
- E02D5/03—Prefabricated parts, e.g. composite sheet piles
- E02D5/04—Prefabricated parts, e.g. composite sheet piles made of steel
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D5/00—Bulkheads, piles, or other structural elements specially adapted to foundation engineering
- E02D5/22—Piles
- E02D5/24—Prefabricated piles
- E02D5/28—Prefabricated piles made of steel or other metals
Landscapes
- Engineering & Computer Science (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Architecture (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Bridges Or Land Bridges (AREA)
Abstract
The invention discloses a pull rod type multipurpose steel trestle abutment and a construction method thereof, wherein double rows of steel pipe piles, soil retaining steel plate piles, counter-pull steel plates, abutment back fillers, counter-pull screw rods and abutment butt straps are firstly driven in front of the abutment as an integral braking measure; aiming at the condition that the table back filling soil in a river overflowing area is high, on one hand, the steel sheet pile and the waist beam structure are adopted to realize the functions of soil retaining and scouring, and on the other hand, the counter-pulling screw rod and the counter-pulling steel plate are adopted to realize the balance of soil pressure; then, reinforcing soil is filled between the steel sheet pile and the counter-pull steel sheet to ensure the stability of the abutment back, a layer of concrete bridge head lapping plate is arranged at the upper part, and the internal configuration steel bars and the top of the steel pipe pile are welded into a whole. By adopting the abutment design and the construction method thereof, the problems of difficult dismantling, large settling volume, poor stability, abutment back scouring and the like of a higher filling temporary abutment in a river rampart can be solved, and the elevation of the temporary trestle, the direct connection of a bridge circuit and the reduction of the length of the trestle are favorably controlled, so that the aim of reducing the construction cost is fulfilled.
Description
Technical Field
The invention relates to the technical field of bridge engineering construction, in particular to a pull rod type multipurpose steel trestle bridge abutment and a construction method thereof.
Background
At present, a wider river flood plain is often designed in a river levee, a temporary steel trestle needs to be built when a project crosses the river levee, the service life is 2-5 years according to the construction period, in order to avoid the influence of the flood period on the steel trestle, the steel trestle is possibly designed to be higher than the river flood plain, if the steel trestle is directly built to the river levee of two banks, the steel trestle is in direct connection with an access road through a traditional concrete bridge abutment, the using amount of the steel trestle is large, and the cost is high; if only a main river crossing groove is built, a concrete bridge abutment is built on a flood plain and then is in direct connection with a flood plain sidewalk, a foundation needs to be arranged at the bottom of the concrete bridge abutment, and meanwhile, when the bridge abutment is high, concrete is adopted to design, so that the stress is complex, the size is large, the later period is difficult to break, the cost is high, and the lateral force resistance and flood-proof scouring capability of the common steel pipe bridge abutment are weak; the deep foundation pit also adopts double steel sheet piles to reach the soil retaining effect, but is not suitable for the temporary steel abutment in the flood plain area, and the steel sheet pile consumption is large, and the installation and the dismantlement construction are wasted time and energy.
Disclosure of Invention
In order to overcome the technical defects of complex concrete stress, large volume, difficult later-stage removal, high cost and the like in the traditional steel trestle construction in the prior art, the invention provides the pull rod type multipurpose steel trestle abutment and the construction method thereof, which meet the requirement of higher filling abutment, have high construction efficiency, can effectively reduce the maintenance times of the abutment and shorten the span of the steel trestle and solve the technical problems.
The invention achieves the aim through the following technical scheme, and the pull rod type multipurpose steel trestle bridge abutment comprises double rows of steel pipe piles, soil retaining steel plate piles, counter-pull steel plates, abutment back fillers, counter-pull screws and abutment butt straps. The double-row steel pipe piles are steel pipe piles with double rows of spacing of 3m and are arranged according to the width of a trestle, round steel pipes or I-shaped steel and the like are arranged among the steel pipe piles to serve as a double-row steel pipe pile connection system, fine sand or concrete is filled inside the steel pipe piles to enhance the rigidity and the transverse stability of the steel pipe piles, the soil-retaining steel plate piles are composed of one row of steel plate piles and a plurality of outer side retaining waist beams, the number of the steel plate piles is determined according to the width of a bridge abutment roadbed and the slope protection and is not less than the sum of the width of the trestle and the width of the slope protection, the length of the soil-retaining steel plate piles is determined according to the lower geological condition and the height of the bridge abutment after soil pressure analysis, the number of the outer side retaining waist beam layers is determined according to the height difference between the top surface of the bridge abutment and river overflowing, the outer side retaining waist beams are formed by welding double-spliced channel steel, the abutment back filler is positioned between the retaining steel sheet pile and the counter-pull steel sheet, is a cement soil or other reinforcing filler, is a convenient road direct-connection part for filling on the temporary trestle and the flood plain, the counter-pull screw rod adopts common screw steel, the retaining steel sheet and the counter-pull steel sheet are connected through the waist beams outside the two sides of the retaining soil, and are buried in the abutment back filler, a tension-compression balance structure is formed with the abutment back filler, a plurality of longitudinal main ribs are arranged inside the abutment butt plate, and the longitudinal main ribs extend out of the end of the upright post and are welded in the upright post at the top of the steel pipe pile.
In the specific construction process of the pull rod type multipurpose steel trestle bridge abutment, the whole construction method comprises the following construction steps:
s1: the method comprises the following steps of (1) driving a steel pipe pile, paying off according to a design position, constructing a bridge abutment steel pipe column on a river bank line or a flood plain line, determining the top elevation according to the bridge deck elevation of a trestle, erecting section steel on the pile top close to the side of a river channel, manufacturing a welding platform on the upper portion of the steel pipe column on the side of the flood plain and erecting the section steel, placing a rubber cushion block on the upper portion, erecting the section steel on the top, and pouring fine sand or concrete into the soil outlet portion of the steel pipe pile;
s2: the method comprises the following steps of (1) driving a row of soil-retaining steel sheet piles, paying off according to a design position, driving a row of soil-retaining steel sheet piles transversely next to the driven steel pipe piles along a line, and installing counter-pulling steel plates on the other sides of counter-pulling screws with intervals of more than 8 m;
s3: the method comprises the steps of (1) bench back backfilling and supporting system construction, selecting whether to partially replace and fill a foundation according to site geological conditions, backfilling between a steel sheet pile and a counter-pull steel sheet layer by layer, compacting cement layer by layer to reinforce and fill soil, excavating a notch with the depth of 150mm and the width of 100mm at the bottom according to the design position of a counter-pull screw when backfilling to a first layer waist beam at the designed bottom, mounting a counter-pull screw, fixing the notch on an outer side waist beam of a retaining soil by using a double-layer screw cap, continuously backfilling and mounting each layer of outer side waist beam of the retaining soil and the counter-pull screw, and synchronously performing 1:1 slope protection construction in the soil filling and compacting process, wherein;
s4: arranging bridge abutment buttresses, arranging a row of brackets on the upper parts of the steel sheet piles, enabling the top surfaces of the brackets to be flush with backfill reinforced soil, enabling upper embedded steel bars to penetrate into the inner side of the top of the steel pipe pile, and then pouring the concrete bridge abutment buttresses;
s5: the bridge abutment upper structure is installed, an upper bridge abutment beret beam supporting structure and prefabricated bridge decks are installed, expansion joints are arranged between the bridge abutment and the abutment back filling, and at least three prefabricated bridge decks are arranged on the abutment back and are sequentially connected with a common roadbed filling access road.
Generally, compared with the prior art, the technical scheme of the invention can achieve the following beneficial effects:
1. the pull rod type multipurpose steel trestle bridge abutment is reinforced in multiple ways, ensures the stress safety of the structure, solves the problem of weak lateral force of a steel pipe of the bridge abutment, has strong integrity, is completely a steel structure, has strong reutilization effect, is free from pollution during dismantling, has high construction efficiency and small forward connection settlement, and meets the requirement of forward connection of a temporary trestle bridge and an access road for a long time;
2. by adopting the construction method, efficient, high-quality and stable design and construction of the temporary abutment can be realized, the forward connection transition effect of the temporary bridge and the temporary road is better, the later-stage dismantling is easy, the difficult problem of abutment construction under the conditions of higher filling and river scouring is effectively solved, the on-site construction period and cost are saved, and the later-stage maintenance workload is reduced.
Drawings
The following detailed description of embodiments of the invention is provided in conjunction with the appended drawings, in which:
FIG. 1 is a schematic longitudinal section of a multi-purpose steel trestle abutment of the present invention;
FIG. 2 is a schematic view of a lower plan view of a multi-purpose steel trestle abutment of the present invention;
FIG. 3 is a schematic longitudinal section 1/2 of a multi-purpose steel trestle abutment of the present invention;
FIG. 4 is a detailed schematic view of the steel pipe pile overlap joint platform according to the present invention;
FIG. 5 is a detailed view of the connection between the retaining steel plate and the steel pipe column according to the present invention;
FIG. 6 is a detailed view of the abutment attachment plate according to the present invention;
in the figure: 1-double rows of steel pipe piles, 2-soil retaining steel plate piles, 3-counter-pulling steel plates, 4-table back filling materials, 5-counter-pulling screw rods, 6-abutment butt straps, 7-river bank lines or river runflat lines, 8-section steel, 9-Bailey beam supporting structures, 10-prefabricated panels, 11-expansion joints, 12-rubber mats, 13-steel pipe piles, 14-double rows of steel pipe pile connection systems, 15-welding platforms on the steel pipe piles, 16-soil retaining steel plates, 17-soil retaining outer side waist beams, 18-middle steel plates, 19-concrete abutment butt straps, 20-configuration main ribs and 21-brackets.
Detailed Description
As shown in fig. 1 to 3, the present invention is a schematic diagram of a longitudinal section, a lower plane and a 1/2 longitudinal section of a tie-rod type multipurpose steel trestle abutment, and comprises double rows of steel pipe piles 1, retaining steel plate piles 2, counter-pull steel plates 3, abutment back fillers 4, counter-pull screws 5 and abutment buttresses 6.
The double-row steel pipe piles 1 are steel pipe piles 13 with a double-row interval of 3m and are arranged according to the width of a trestle, round steel pipes or I-shaped steel and the like are arranged among the steel pipe piles 13 to serve as double-row steel pipe pile connection systems 14, fine sand or concrete is filled inside the double-row steel pipe piles to enhance the rigidity and the transverse stability of the double-row steel pipe piles, and as shown in fig. 4, the double-row steel pipe piles 1 is a detailed schematic diagram of a steel.
The retaining steel sheet pile 2 is composed of a row of steel sheet piles and a plurality of retaining outer side waist beams 17, the number of the retaining steel sheet piles 2 is determined according to the width of a bridge abutment roadbed and a protection slope and is not smaller than the sum of the width of a trestle and the width of the protection slope, the length of the retaining steel sheet pile 2 is determined according to the lower geological condition and the height of the bridge abutment after soil pressure analysis, the number of the retaining outer side waist beams 17 is determined according to the height difference between the top surface of the bridge abutment and river overflowing, the retaining outer side waist beams 17 are formed by welding double-spliced channel steel, the middle steel sheet 18 is welded on the steel pipe pile 13, and as shown in figure 5, the retaining steel sheet 16 and the steel pipe column.
The counter-pulling steel plate 3 is composed of a small number of steel plates, the distance between the counter-pulling steel plate 3 and the retaining steel plate pile 2 is not less than 8m, two counter-pulling steel plates are arranged at each position, and a finish-rolling deformed steel bar gap is reserved in the middle.
The platform back filler 4 is positioned between the retaining steel sheet pile and the counter-pull steel sheet, is made of cement soil or other reinforcing fillers and is a part which is directly connected with a filling convenience road on the temporary trestle and the flood plain.
The opposite-pulling screw rods 5 are made of common deformed steel bars, the soil retaining steel plates 16 and the reverse-pulling steel plates 3 are connected through the outer waist beams 17 of the soil retaining parts at two sides, and are embedded in the table back filler 4 to form a tension-compression balance structure with the table back filler 4.
A plurality of longitudinal main ribs 20 are arranged inside the abutment butt strap 6, the longitudinal main ribs 20 extend out of the end of the upright column and are bent into the upright column at the top of the steel pipe pile 13 for welding, and as shown in fig. 6, the longitudinal main ribs are a detailed schematic diagram of the abutment butt strap 6.
In the specific construction process of the pull rod type multipurpose steel trestle abutment, the construction of the steel trestle abutment is mainly completed through the following steps:
the method comprises the following steps: the method comprises the following steps of (1) driving a steel pipe pile 13, paying off according to a design position, constructing a bridge abutment steel pipe column on a river bank line or a river flood beach line 7, determining the top elevation according to the bridge deck elevation of a trestle, erecting section steel 8 on the pile top close to a river channel side, manufacturing a welding platform on the upper portion of the steel pipe column on the river flood beach side, erecting section steel 8, placing a rubber cushion block 12 on the upper portion, erecting the section steel 8 on the top portion, and pouring fine sand or concrete into the soil outlet portion of the steel pipe pile 13;
step two: the row of soil-retaining steel sheet piles 2 are arranged in a driving mode, paying off is carried out according to the designed position, the row of soil-retaining steel sheet piles 2 are transversely arranged close to the driven steel pipe piles 13 along the line, and the reverse-pulling steel plates 3 are arranged on the other sides of the counter-pulling screw rods 5 at intervals of more than 8 m;
step three: the method comprises the steps of (1) construction of a platform back backfilling and supporting system, selecting whether to locally replace and fill a foundation according to site geological conditions, backfilling between a steel sheet pile 13 and a counter-pull steel plate 3 layer by layer, compacting cement layer by layer to reinforce and fill soil, digging a notch with the depth of 150mm and the width of 100mm at the bottom according to the design position of a counter-pull screw 5 when backfilling is carried out to the mark of a first layer of waist beam at the designed bottom, installing a counter-pull screw 5, fixing the notch on an outer side waist beam 17 of a retaining soil by using a double-layer nut, continuously backfilling and installing each layer of outer side waist beam 17 of the retaining soil and the counter-pull screw 5, and synchronously carrying out 1:1 slope protection construction;
step four: arranging a bridge abutment butt strap 6, arranging a row of brackets 21 on the upper part of the steel sheet pile, enabling the top surfaces of the brackets 21 to be flush with backfill reinforcing soil, enabling upper embedded steel bars to penetrate into the inner side of the steel pipe pile top 13, and then pouring a concrete bridge abutment butt strap 19;
step five: the upper part of the bridge abutment is structurally installed, an upper bridge abutment beret beam supporting structure 9 and prefabricated bridge decks 10 are installed, expansion joints 11 are arranged between the bridge abutment and the abutment back filling, and at least three prefabricated bridge decks 10 are arranged on the abutment back and are sequentially connected with a common roadbed filling pavement.
It will be understood by those skilled in the art that the foregoing is only a preferred embodiment of the present invention, and is not intended to limit the invention, and that any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (2)
1. A pull rod type multipurpose steel trestle abutment is characterized by comprising double rows of steel pipe piles (1), soil retaining steel plate piles (2), counter-pull steel plates (3), abutment back fillers (4), counter-pull screw rods (5) and abutment butt straps (6);
the double-row steel pipe piles (1) are steel pipe piles (13) which are arranged according to the width of a trestle and are arranged at a distance of 3m in a double-row mode, round steel pipes or I-shaped steel and the like are arranged among the steel pipe piles (13) to serve as double-row steel pipe pile connection systems (14), and fine sand or concrete is filled in the double-row steel pipe piles to enhance the rigidity and the transverse stability of the double-row steel pipe piles;
the soil-blocking steel sheet piles (2) are composed of a row of steel sheet piles and a plurality of soil-blocking outer side waist beams (17), the number of the soil-blocking steel sheet piles (2) is determined according to the width of a bridge abutment roadbed and a slope protection and is not smaller than the sum of the width of a trestle and the width of the slope protection, the length of the soil-blocking steel sheet piles (2) is determined according to the lower geological condition and the height of the bridge abutment after soil pressure analysis, the number of the layers of the soil-blocking outer side waist beams (17) is determined according to the height difference between the top surface of the bridge abutment and river flow, the soil-blocking outer side waist beams (17) are formed by welding double-spliced channel steel, and;
the back-pull steel plates (3) are composed of a small number of steel plates, the distance between each back-pull steel plate (3) and the corresponding soil-retaining steel plate pile (2) is not less than 8m, two back-pull steel plates are arranged at each position, and a finish-rolled deformed steel bar gap is reserved in the middle of each back-pull steel plate;
the table back filler (4) is positioned between the soil retaining steel plate pile and the counter-pull steel plate, is made of cement soil or other reinforcing fillers and is a direct connection part of the temporary trestle and a filling convenience road on the flood plain;
the counter-pulling screw rod (5) is made of common deformed steel, the soil retaining steel plate (16) and the counter-pulling steel plate (3) are connected through the outer side waist beams (17) of the soil retaining parts at two sides, and are embedded in the table back filler (4) to form a tension-compression balance structure with the table back filler (4);
a plurality of longitudinal main ribs (20) are arranged inside the abutment butt strap (6), and the longitudinal main ribs (20) extend out of the end of the upright post and are bent into the upright post at the top of the steel pipe pile (13) for welding.
2. The construction method of the tie rod type multipurpose steel trestle abutment of claim 1, which is characterized by comprising the following steps:
s1: the method comprises the following steps of driving a steel pipe pile (13), paying off according to a design position, constructing a bridge abutment steel pipe column on a river bank line or a river flood beach line (7), determining the top elevation according to the bridge deck elevation of a trestle, erecting section steel (8) on the pile top close to a river channel side, manufacturing a welding platform on the upper portion of the steel pipe column on the river flood side, erecting the section steel (8), placing a rubber cushion block (12) on the upper portion, erecting the section steel (8) on the top portion, and pouring fine sand or concrete into the soil outlet portion of the steel pipe pile (13);
s2: the row of soil-retaining steel sheet piles (2) are arranged in a driving mode, paying off is carried out according to the design position, the row of soil-retaining steel sheet piles (2) are transversely arranged close to the driven steel pipe piles (13) along the line, and counter-pulling steel sheets (3) are arranged on the other sides of the counter-pulling screw rods (5) with the interval of more than 8 m;
s3: the method comprises the steps of back backfilling and supporting system construction, selecting whether to partially replace and fill a foundation according to site geological conditions, backfilling between a steel plate pile (13) and a counter-pull steel plate (3) layer by layer, compacting cement layer by layer to reinforce and fill soil, when backfilling is carried out until a first-layer waist beam mark at the bottom is designed, digging a notch with the depth of 150mm and the width of 100mm at the bottom according to the design position of a counter-pull screw (5), installing the counter-pull screw (5), fixing the notch on an outer side waist beam (17) of a retaining soil by using a double-layer screw cap, continuously backfilling and installing each layer of outer side waist beam (17) of the retaining soil and the counter-pull screw (5), and synchronously carrying out 1:1 slope protection construction in the soil filling and compacting;
s4: arranging a bridge abutment butt strap (6), arranging a row of brackets (21) on the upper part of the steel sheet pile, enabling the top surfaces of the brackets (21) to be flush with backfill reinforced soil, enabling upper embedded steel bars to penetrate into the inner side of the steel pipe pile top (13), and then pouring a concrete bridge abutment butt strap (19);
s5: the bridge abutment upper part structure installation, installation upper portion bridge abutment beiLei roof beam bearing structure (9) and prefabricated decking (10), set up expansion joint (11) between abutment and the back of a platform filling soil, set up on the back of a platform to be no less than three prefabricated decking (10) and ordinary road bed filling soil access way and connect in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167863.XA CN112482202A (en) | 2020-10-27 | 2020-10-27 | Pull rod type multipurpose steel trestle bridge abutment and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011167863.XA CN112482202A (en) | 2020-10-27 | 2020-10-27 | Pull rod type multipurpose steel trestle bridge abutment and construction method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112482202A true CN112482202A (en) | 2021-03-12 |
Family
ID=74927173
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011167863.XA Pending CN112482202A (en) | 2020-10-27 | 2020-10-27 | Pull rod type multipurpose steel trestle bridge abutment and construction method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112482202A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944106A (en) * | 2021-10-28 | 2022-01-18 | 中铁二十局集团有限公司 | Steel trestle bridge channel for upper bridge of land short pier bridge and construction method of steel trestle bridge channel |
| CN114837062A (en) * | 2022-06-06 | 2022-08-02 | 广东省源天工程有限公司 | Steel trestle connecting platform |
| CN117071452A (en) * | 2023-10-13 | 2023-11-17 | 中国建筑第六工程局有限公司 | A flood protection method for high-drop water level construction trestle bridges |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104631432A (en) * | 2015-01-16 | 2015-05-20 | 兰州理工大学 | Flexible supporting system for prestress anchor supporting plate of sheet-pile retaining wall and construction method |
| CN204455801U (en) * | 2014-12-25 | 2015-07-08 | 中铁大桥局集团第六工程有限公司 | A kind of bridge abutment structure |
| CN206538672U (en) * | 2017-01-18 | 2017-10-03 | 中交路桥建设有限公司 | Novel fabricated truss steel trestle |
| CN108005104A (en) * | 2017-10-27 | 2018-05-08 | 西安科技大学 | A kind of combined type retaining wall structure and its construction method |
| KR20190004625A (en) * | 2017-07-04 | 2019-01-14 | (주)지비건설 | the improved bridge structure |
| CN109750681A (en) * | 2019-03-14 | 2019-05-14 | 兰州理工大学 | A kind of filling slope frame micro-tensioned anchor plate support structure and construction method thereof |
| CN110847020A (en) * | 2019-11-28 | 2020-02-28 | 湖北省路桥集团有限公司 | Steel pipe pile bridge end and construction method |
| CN111560842A (en) * | 2020-05-28 | 2020-08-21 | 中铁五局集团有限公司 | Combined abutment structure for temporary trestle |
| CN211368353U (en) * | 2019-11-28 | 2020-08-28 | 湖北省路桥集团有限公司 | Steel trestle steel pipe pile concrete abutment |
-
2020
- 2020-10-27 CN CN202011167863.XA patent/CN112482202A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204455801U (en) * | 2014-12-25 | 2015-07-08 | 中铁大桥局集团第六工程有限公司 | A kind of bridge abutment structure |
| CN104631432A (en) * | 2015-01-16 | 2015-05-20 | 兰州理工大学 | Flexible supporting system for prestress anchor supporting plate of sheet-pile retaining wall and construction method |
| CN206538672U (en) * | 2017-01-18 | 2017-10-03 | 中交路桥建设有限公司 | Novel fabricated truss steel trestle |
| KR20190004625A (en) * | 2017-07-04 | 2019-01-14 | (주)지비건설 | the improved bridge structure |
| CN108005104A (en) * | 2017-10-27 | 2018-05-08 | 西安科技大学 | A kind of combined type retaining wall structure and its construction method |
| CN109750681A (en) * | 2019-03-14 | 2019-05-14 | 兰州理工大学 | A kind of filling slope frame micro-tensioned anchor plate support structure and construction method thereof |
| CN110847020A (en) * | 2019-11-28 | 2020-02-28 | 湖北省路桥集团有限公司 | Steel pipe pile bridge end and construction method |
| CN211368353U (en) * | 2019-11-28 | 2020-08-28 | 湖北省路桥集团有限公司 | Steel trestle steel pipe pile concrete abutment |
| CN111560842A (en) * | 2020-05-28 | 2020-08-21 | 中铁五局集团有限公司 | Combined abutment structure for temporary trestle |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113944106A (en) * | 2021-10-28 | 2022-01-18 | 中铁二十局集团有限公司 | Steel trestle bridge channel for upper bridge of land short pier bridge and construction method of steel trestle bridge channel |
| CN114837062A (en) * | 2022-06-06 | 2022-08-02 | 广东省源天工程有限公司 | Steel trestle connecting platform |
| CN114837062B (en) * | 2022-06-06 | 2023-09-08 | 广东省源天工程有限公司 | Steel trestle connecting platform |
| CN117071452A (en) * | 2023-10-13 | 2023-11-17 | 中国建筑第六工程局有限公司 | A flood protection method for high-drop water level construction trestle bridges |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN112482202A (en) | Pull rod type multipurpose steel trestle bridge abutment and construction method thereof | |
| CN203229874U (en) | Repeatedly used cast-in-place support system for simply-supported beam | |
| CN111764286B (en) | Frame bridge jacking construction method | |
| CN110578287A (en) | A prefabricated soil-covered corrugated steel plate-prestressed concrete composite arch bridge and its construction method | |
| CN112267369A (en) | Non-span upright post steel trestle structure, pushing installation device and construction method | |
| CN108708290B (en) | Box bridge frame hollow structure of small-radius railway curve unit and cast-in-place construction method | |
| CN112983493A (en) | Reinforcing structure for shield to closely penetrate large-section bridge and culvert downwards and construction method | |
| CN116497725A (en) | Flood control type railway bridge reinforcing structure and construction method | |
| CN110952563A (en) | Temporary anti-floating structure for excavation of foundation pit above existing subway tunnel | |
| CN207512580U (en) | For runing the reinforced bridgehead structures of rigidity that highway administers bumping at bridge-head | |
| CN111996899B (en) | Method for building large-span channel in artificial landscape mountain | |
| CN211973137U (en) | System for transversely pushing existing bridge to enable new bridge to be in place and fall beam | |
| CN207958955U (en) | A kind of corrosion resistant bridge | |
| CN210141143U (en) | Pipe curtain undercut multilayer suspension pull stand braced system | |
| CN114645514A (en) | Beam transportation channel and bridge building equipment assembling construction method under narrow terrain condition in mountainous area | |
| CN207891909U (en) | A kind of corrugated steel pipe overlapping cross section structure | |
| CN219653491U (en) | Steel construction abutment suitable for steel trestle | |
| CN218540639U (en) | Bottom anchored connection type steel pipe pile platform | |
| CN217781699U (en) | River-crossing steel structure bridge | |
| CN108086349A (en) | A kind of corrugated steel pipe overlaps cross section structure | |
| CN220767747U (en) | Railway basket arch bridge construction structure with large inclined span longitudinal slope underground double parallel structure | |
| CN219527373U (en) | A single-pillar pier bridge maintenance bracket | |
| CN216809531U (en) | Riverbed scouring comprehensive protection structure | |
| CN216765890U (en) | Steel corrugated pipe culvert bottom supporting stiffening and pressing concrete layer structure | |
| CN217438694U (en) | Inclined vertical pushing pier side support with limited space |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20210312 |