CN114277695A - Construction method of steel reinforced concrete composite beam close to business line - Google Patents
Construction method of steel reinforced concrete composite beam close to business line Download PDFInfo
- Publication number
- CN114277695A CN114277695A CN202210080460.4A CN202210080460A CN114277695A CN 114277695 A CN114277695 A CN 114277695A CN 202210080460 A CN202210080460 A CN 202210080460A CN 114277695 A CN114277695 A CN 114277695A
- Authority
- CN
- China
- Prior art keywords
- steel
- steel beam
- business line
- far away
- group
- 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
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 332
- 239000010959 steel Substances 0.000 title claims abstract description 332
- 239000002131 composite material Substances 0.000 title claims abstract description 48
- 238000010276 construction Methods 0.000 title claims abstract description 42
- 239000011150 reinforced concrete Substances 0.000 title claims description 9
- 239000011513 prestressed concrete Substances 0.000 claims abstract description 66
- 239000004567 concrete Substances 0.000 claims abstract description 46
- 238000000034 method Methods 0.000 claims abstract description 13
- 238000004873 anchoring Methods 0.000 claims description 9
- 230000000694 effects Effects 0.000 description 5
- 230000002411 adverse Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009435 building construction Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Images
Landscapes
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention relates to a construction method of a steel concrete composite beam close to a business line, wherein the steel concrete composite beam is positioned on the side surface of the business line, steel beams of the steel concrete composite beam are erected on a prestressed concrete bent cap, and the steel beams of the steel concrete composite beam from the side close to the business line to the side far away from the business line are respectively a first steel beam, a second steel beam and a third steel beam … … Nth steel beam; a cross beam is erected between adjacent steel beams, and the method comprises the following steps: 1) the first steel beam hoisting frame is arranged on the prestressed concrete bent cap far away from the business line side, the next steel beam of the first steel beam hoisting frame far away from the business line side hoists a beam between the hoisted steel beams, the next steel beam is hoisted on the hoisting frame far away from the business line side, the next steel beam and the beam matched with the next steel beam are arranged, and the steel beam cannot be arranged in the space of the prestressed concrete bent cap far away from the business line side; all the steel beams and the cross beams in the step form a starting steel beam group; 2) and translating the starting steel beam group in the step 1) in the width direction of the stress concrete capping beam.
Description
Technical Field
The invention belongs to the technical field of building construction, and particularly relates to a construction method of a steel-concrete composite beam close to a business line.
Background
At present, the common construction method of the domestic and foreign steel-concrete composite beam adopts hole-by-hole and piece-by-piece construction, wherein the construction is carried out firstly after the steel beam is arranged on the inner side of the bridge deck and then (after the steel beam is arranged on the bridge deck). When the construction is close to a business line, the protection range of the railway is 30m, the requirements on a construction operation surface and protection are higher, the construction is carried out according to the conventional construction method, the operation surface is expanded in a large area, the requirements on the business line are basically difficult to meet, or potential danger can be caused to the business line, even danger can be directly caused to a high-speed railway bridge pier and a high-speed railway contact network in the business line, the construction method must be adjusted, the 'down bar' of (construction) equipment is reduced (namely the phenomenon that a suspension arm of the construction equipment interferes with the business line), and adverse effects on the safety of railway operation are avoided.
The Chinese patent ' super-high physical isolation construction method for construction adjacent to a high-speed rail business line ' (application number 201710404879. X; application date 2017.06.01) ' avoids potential risks of construction from the height direction, but the prior art does not have a construction method capable of solving the problems in the width direction and the height direction of an area where the width is located. Specifically, referring to fig. 1, fig. 1 is a schematic diagram of a first step of a process flow of a conventional steel reinforced concrete composite beam construction method. The steel-concrete composite beam is firstly constructed with a steel beam and then constructed with a bridge deck, the steel beam construction adopts a method of fragment hoisting and on-site connection, due to the requirement of safety protection close to a business line, the steel-concrete composite beam construction process can not avoid hoisting operation (both the construction methods of prefabricating and hoisting the bridge deck and cast-in-place need hoisting operation), the crane hoisting height is higher, the distance from the business line railway is closer, refer to fig. 1 again, in fig. 1, the right side represents a business line area, and the right side part in the figure indicates a high-speed rail pier, a high-speed rail vehicle body and a high-speed rail contact network in the business line area; the left side of the figure shows the construction area (the arc section, i.e. the arc of rotation of the boom of the crane, the point of the arc section is in the area of the business line), and the left side part of the figure is the first steel beam 1, the second steel beam 2 and the third steel beam 3. And a cross beam is erected between the adjacent steel beams. The steel beam is the main component of the steel concrete composite beam. The steel beam is placed on the prestressed concrete cap beam 10, i.e. in the state of fig. 1, so that there is a safety risk of "back-lifting", and this problem needs to be solved.
Disclosure of Invention
The invention aims to provide a construction method of a steel concrete composite beam close to a business line, which solves the problem of construction safety of the close business line, reduces or even directly avoids the problem of 'pole falling' of equipment, and avoids adverse effects on the safety of an operating railway.
In order to achieve the above purpose, the invention adopts the technical scheme that: a steel concrete composite beam construction method close to a business line is characterized in that the steel concrete composite beam is positioned on the side face of the business line, steel beams of the steel concrete composite beam are erected on a prestressed concrete bent cap, and steel beams of the steel concrete composite beam from the side close to the business line to the side far away from the business line are a first steel beam, a second steel beam and a third steel beam; a cross beam is erected between adjacent steel beams, and the method comprises the following steps:
1) the first steel beam hoisting frame is arranged on the prestressed concrete bent cap far away from the business line side, the next steel beam of the first steel beam hoisting frame far away from the business line side hoists a cross beam between the hoisted steel beams, the next steel beam is hoisted on the next steel beam far away from the business line side and is provided with the next steel beam and the cross beam matched with the next steel beam, and the steel beam cannot be placed in the space of the prestressed concrete bent cap far away from the business line side; all the steel beams and the cross beams in the step form a starting steel beam group;
2) translating the starting steel beam group in the step 1) in the width direction of the stress concrete cover beam until the steel beam of the starting steel beam group close to the business line side moves to the falling position of the steel beam at the most side position of the prestressed concrete cover beam close to the business line side;
3) and the side, far away from the business line, of the starting steel beam group sequentially hoists the rest steel beams and the matched cross beam, and the hoisting of the direct Nth steel beam is finished.
A construction method of a steel concrete composite beam close to a business line is characterized in that the steel concrete composite beam is positioned on the side face of the business line, steel beams of the steel concrete composite beam are erected on a prestressed concrete bent cap, and steel beams of the steel concrete composite beam from the side close to the business line to the side far away from the business line are respectively a first steel beam, a second steel beam and a third steel beam.
1) The first steel beam hoisting frame is arranged on the prestressed concrete bent cap far away from the business line side, the next steel beam of the first steel beam hoisting frame far away from the business line side hoists a cross beam between the hoisted steel beams, the next steel beam is hoisted on the next steel beam far away from the business line side and is provided with the next steel beam and the cross beam matched with the next steel beam, and the steel beam cannot be placed in the space of the prestressed concrete bent cap far away from the business line side; all steel beams and cross beams in the step form a steel beam unit group;
2) translating the steel beam unit group in the step 1) in the width direction of the stress concrete capping beam; until the steel beam of the group of steel beam unit groups close to the business line side moves to the most edge side position of the prestressed concrete cover beam close to the business line side;
3) repeating the steps 1) and 2) on the side, away from the business line, of the upper group of steel beam unit groups; the side of the next group of steel beam unit groups close to the business line is butted with the side of the last group of steel beam unit groups far away from the business line;
4) after the last steel beam unit group is butted with the last but one steel beam unit group, if the space on the prestressed concrete bent cap far away from the business line side is used for arranging one steel beam unit group, hoisting the last steel beam unit group, and finishing the hoisting of the steel beam; and if the space on the prestressed concrete bent cap far away from the business line side is provided for arranging a single steel beam, hoisting the last steel beam and the matched beam, and finishing the hoisting of the steel beam.
Furthermore, the starting steel beam group and the steel beam unit group comprise more than or equal to 2 steel beams.
Furthermore, the first steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap.
Furthermore, the translation is that after the assembly of the steel beam group or the steel beam unit group is finished, slideways are arranged below the steel beam and on the top of the prestressed concrete capping beam, and the prestressed concrete capping beam pulls the whole steel beam group or the steel beam unit group through self-anchoring internal force balance.
Further, before the step 1), the place is cleaned away from the business line.
Furthermore, the steel beams are 4 steel beams of a first steel beam, a second steel beam, a third steel beam and a fourth steel beam of the steel concrete composite beam from the side close to the business line to the side far away from the business line; the method comprises the following steps:
1) the first steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap far away from the business line side, the second steel beam is hoisted and erected on the side of the first steel beam far away from the business line, and the cross beam between the hoisted steel beams is hoisted to form a half-width steel beam group;
2) after the assembly of the half-width steel beam group in the step 1) is completed, installing slideways below the steel beams and on the top of the prestressed concrete cover beam, and pulling the whole half-width steel beam group through the prestressed concrete cover beam from the anchor internal force balance until the steel beam of the half-width steel beam group close to the business line side moves to the falling position of the steel beam at the most lateral side of the prestressed concrete cover beam close to the business line side;
3) the third steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap far away from the business line side, the fourth steel beam is hoisted on the side of the third steel beam far away from the business line, and the cross beam between the hoisted steel beams is hoisted to form the other half steel beam group; and the whole other half steel beam group is pulled by self-anchoring internal force balance of the prestressed concrete bent cap to complete the whole assembly of the steel beam.
The invention has the technical effects that: the construction method of the steel concrete composite beam close to the business line solves the problem of construction safety of the close business line, reduces or even directly avoids the problem of 'pole falling' of equipment, and avoids adverse effects on the safety of an operating railway.
Drawings
FIG. 1 is a schematic diagram of a first step of a prior art process flow;
fig. 2a, 2b, 2c, 2d, 2e, 2f, 2g are sequential schematic diagrams of a process flow of a preferred embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
On the basis of the construction method of prefabricating and erecting the steel concrete composite beam, the prestressed concrete bent cap 10 is supported by a steel pipe bracket during construction. The construction method is based on that the steel concrete composite beam is firstly constructed with the steel beam and then constructed with the bridge deck, and the construction of the steel beam adopts the method of sectional hoisting and on-site connection.
One embodiment of the invention:
a steel concrete composite beam construction method near a business line is characterized in that the steel concrete composite beam is positioned on the side face of the business line, steel beams of the steel concrete composite beam are erected on a prestressed concrete bent cap 10, and the steel beams of the steel concrete composite beam from the side close to the business line to the side far away from the business line are a first steel beam, a second steel beam and a third steel beam; a cross beam is erected between adjacent steel beams, and the method comprises the following steps:
1) the first steel beam hoisting frame is arranged on the prestressed concrete bent cap 10 far away from the business line side, the next steel beam of the first steel beam hoisting frame far away from the business line side hoists the cross beam between the hoisted steel beams, the next steel beam is hoisted and erected on the next steel beam far away from the business line side, and the cross beam matched with the next steel beam is arranged until the prestressed concrete bent cap 10 is not placed in the space far away from the business line side; all the steel beams and the cross beams in the step form a starting steel beam group;
2) translating the starting steel beam group in the step 1) in the width direction of the stress concrete bent cap 10 until the steel beam of the starting steel beam group close to the business line side moves to the falling position of the steel beam at the most side position of the prestressed concrete bent cap 10 close to the business line side;
3) and the side, far away from the business line, of the starting steel beam group sequentially hoists the rest steel beams and the matched cross beam, and the hoisting of the direct Nth steel beam is finished.
Furthermore, the starting steel beam group comprises more than or equal to 2 groups of steel beams.
Further, the first steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap 10.
Furthermore, the translation is that after the assembly of the steel beam group is finished, slideways are arranged below the steel beam and on the top of the prestressed concrete bent cap 10, and the prestressed concrete bent cap 10 pulls the whole steel beam group to be started in a self-anchoring internal force balance mode.
Further, before the step 1), the place is cleaned away from the business line.
Another embodiment of the invention:
a construction method of a steel concrete composite beam close to a business line is characterized in that the steel concrete composite beam is positioned on the side face of the business line, steel beams of the steel concrete composite beam are erected on a prestressed concrete bent cap 10, and the steel beams of the steel concrete composite beam from the side close to the business line to the side far away from the business line are respectively a first steel beam, a second steel beam and a third steel beam.
1) The first steel beam hoisting frame is arranged on the prestressed concrete bent cap 10 far away from the business line side, the next steel beam of the first steel beam hoisting frame far away from the business line side hoists the cross beam between the hoisted steel beams, the next steel beam is hoisted and erected on the next steel beam far away from the business line side, and the cross beam matched with the next steel beam is arranged until the prestressed concrete bent cap 10 is not placed in the space far away from the business line side; all steel beams and cross beams in the step form a steel beam unit group;
2) translating the steel beam unit group in the step 1) in the width direction of the stress concrete capping beam 10; until the steel beams of the group of steel beam unit groups close to the business line side move to the most edge side position of the prestressed concrete bent cap 10 close to the business line side;
3) repeating the steps 1) and 2) on the side, away from the business line, of the upper group of steel beam unit groups; the side of the next group of steel beam unit groups close to the business line is butted with the side of the last group of steel beam unit groups far away from the business line;
4) after the last steel beam unit group is butted with the last but one steel beam unit group, if the space on the prestressed concrete bent cap 10 far away from the business line side is used for arranging one steel beam unit group, the last steel beam unit group is hoisted, and the hoisting of the steel beam is finished; if the space far away from the business line side on the prestressed concrete bent cap 10 is provided for arranging a single steel beam, hoisting the last steel beam and the matched cross beam, and finishing the hoisting of the steel beam.
Furthermore, the steel beam unit group comprises more than or equal to 2 steel beams.
Further, the first steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap 10.
Furthermore, the translation is that after the assembly of the steel beam unit group is completed, slideways are arranged under the steel beam and on the top of the prestressed concrete bent cap 10, and the integral steel beam unit group is pulled by the prestressed concrete bent cap 10 in a self-anchoring internal force balance manner.
Further, before the step 1), the place is cleaned away from the business line.
Preferred embodiments of the invention: referring to fig. 2a-2g, fig. 2a-2g correspond to the following steps in sequence, wherein the steel beams are 4 steel beams including a first steel beam, a second steel beam, a third steel beam and a fourth steel beam of the steel reinforced concrete composite beam from the side close to the business line to the side far away from the business line; the method comprises the following steps:
1) the first steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap 10 far away from the business line side, the second steel beam is hoisted and erected at the side of the first steel beam far away from the business line, and the cross beam between the hoisted steel beams is hoisted to form a half-width steel beam group;
2) after the assembly of the half steel beam group in the step 1) is completed, installing slideways below the steel beams and on the top of the prestressed concrete bent cap 10, and pulling the whole half steel beam group by the prestressed concrete bent cap 10 through self-anchoring internal force balance until the steel beams of the half steel beam group close to the business line side move to the falling position of the steel beams at the most side of the prestressed concrete bent cap 10 close to the business line side;
3) the third steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap 10 far away from the business line side, the fourth steel beam is hoisted on the side of the third steel beam far away from the business line, and the cross beam between the hoisted steel beams is hoisted to form the other half steel beam group; the whole other half steel beam group is pulled by the self-anchoring internal force balance of the prestressed concrete bent cap 10, and the whole assembly of the steel beam is completed.
The arc segment, i.e. the arc of rotation of the crane boom, is shown with its point of fall within the region of the business line.
The construction method of the invention adopts the steps of firstly keeping away from the business line to realize the installation operation of the steel beam and then transversely moving to the corresponding position on the prestressed concrete bent cap 10, the hoisting operation avoids the risk of 'down-tilting', and the transverse moving operation is operated under the business line or outside the business line, thereby reducing the safety interference to the business line. Including the preferred embodiment, even completely avoids the problem of "pole-falling" of the equipment, avoiding adverse effects on the safety of the operating railway.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof.
Claims (7)
1. A steel concrete composite beam construction method near a business line is characterized in that the steel concrete composite beam is positioned on the side face of the business line, steel beams of the steel concrete composite beam are erected on a prestressed concrete bent cap (10), and steel beams of the steel concrete composite beam from the side close to the business line to the side far away from the business line are a first steel beam, a second steel beam and a third steel beam; set up the crossbeam between adjacent girder steel, its characterized in that includes the following step:
1) the first steel beam hoisting frame is arranged on the prestressed concrete bent cap (10) far away from the business line side, the next steel beam of the first steel beam hoisting frame far away from the business line side hoists the cross beam between the hoisted steel beams, the next steel beam is hoisted and erected on the next steel beam far away from the business line side, and the cross beam matched with the next steel beam is arranged until the prestressed concrete bent cap (10) is not placed in the space far away from the business line side; all the steel beams and the cross beams in the step form a starting steel beam group;
2) translating the starting steel beam group in the step 1) in the width direction of the stress concrete bent cap (10) until the steel beam of the starting steel beam group close to the business line side moves to the falling position of the steel beam at the most lateral side of the prestressed concrete bent cap (10) close to the business line side;
3) and the side, far away from the business line, of the starting steel beam group sequentially hoists the rest steel beams and the matched cross beam, and the hoisting of the direct Nth steel beam is finished.
2. A construction method of a steel concrete composite beam close to a business line is characterized in that the steel concrete composite beam is positioned on the side face of the business line, steel beams of the steel concrete composite beam are erected on a prestressed concrete bent cap (10), and the steel beams of the steel concrete composite beam from the side close to the business line to the side far away from the business line are respectively a first steel beam, a second steel beam and a third steel beam.
1) The first steel beam hoisting frame is arranged on the prestressed concrete bent cap (10) far away from the business line side, the next steel beam of the first steel beam hoisting frame far away from the business line side hoists the cross beam between the hoisted steel beams, the next steel beam is hoisted and erected on the next steel beam far away from the business line side, and the cross beam matched with the next steel beam is arranged until the prestressed concrete bent cap (10) is not placed in the space far away from the business line side; all steel beams and cross beams in the step form a steel beam unit group;
2) translating the steel beam unit group in the step 1) in the width direction of the stress concrete capping beam (10); until the steel beams of the group of steel beam unit groups close to the business line side move to the most edge side position of the prestressed concrete bent cap (10) close to the business line side;
3) repeating the steps 1) and 2) on the side, away from the business line, of the upper group of steel beam unit groups; the side of the next group of steel beam unit groups close to the business line is butted with the side of the last group of steel beam unit groups far away from the business line;
4) after the last steel beam unit group is butted with the last but one steel beam unit group, if the space on the prestressed concrete bent cap (10) far away from the business line side is used for arranging one steel beam unit group, hoisting the last steel beam unit group, and finishing the hoisting of the steel beam; if the space far away from the business line side on the prestressed concrete bent cap (10) is provided for arranging a single steel beam, hoisting the last steel beam and the matched beam, and finishing the hoisting of the steel beam.
3. The method for constructing the steel reinforced concrete composite beam near the business line according to claim 1 or 2, wherein the starting steel beam group and the steel beam unit group comprise more than or equal to 2 steel beams.
4. The construction method of the steel reinforced concrete composite beam near the business line according to claim 1 or 2, wherein the first steel beam hoisting frame is arranged above the middle part of the prestressed concrete capping beam (10).
5. The construction method of the steel reinforced concrete composite beam near the business line according to claim 1 or 2, characterized in that: and the translation is that after the assembly of the steel beam group or the steel beam unit group is started, slideways are arranged under the steel beam and on the top of the prestressed concrete capping beam (10), and the prestressed concrete capping beam (10) is used for pulling the whole steel beam group or the steel beam unit group to be started in a self-anchoring internal force balance way.
6. The construction method of the steel reinforced concrete composite beam near the business line according to claim 1 or 2, characterized in that: and (3) before step 1), the place is cleaned away from a business line.
7. The construction method of the steel reinforced concrete composite beam near the business line according to claim 1, characterized in that: the steel beams are 4 steel beams of a first steel beam, a second steel beam, a third steel beam and a fourth steel beam of the steel concrete composite beam from the side close to the business line to the side far away from the business line; the method comprises the following steps:
1) the first steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap (10) far away from the business line side, the second steel beam is hoisted and erected at the side of the first steel beam far away from the business line, and the cross beam between the hoisted steel beams is hoisted to form a half-width steel beam group;
2) after the assembly of the half steel beam group in the step 1) is completed, installing slideways below the steel beams and on the top of the prestressed concrete bent cap (10), and pulling the whole half steel beam group by the prestressed concrete bent cap (10) through self-anchoring internal force balance until the steel beams of the half steel beam group close to the business line side move to the falling position of the steel beams at the most lateral side of the prestressed concrete bent cap (10) close to the business line side;
3) the third steel beam hoisting frame is arranged above the middle part of the prestressed concrete bent cap (10) far away from the business line side, the fourth steel beam is hoisted and erected at the side of the third steel beam far away from the business line, and the cross beam between the hoisted steel beams is hoisted to form the other half steel beam group; the whole other half steel beam group is pulled by self-anchoring internal force balance of the prestressed concrete bent cap (10) to complete the whole assembly of the steel beam.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210080460.4A CN114277695A (en) | 2022-01-24 | 2022-01-24 | Construction method of steel reinforced concrete composite beam close to business line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210080460.4A CN114277695A (en) | 2022-01-24 | 2022-01-24 | Construction method of steel reinforced concrete composite beam close to business line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114277695A true CN114277695A (en) | 2022-04-05 |
Family
ID=80881455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210080460.4A Pending CN114277695A (en) | 2022-01-24 | 2022-01-24 | Construction method of steel reinforced concrete composite beam close to business line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114277695A (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008128533A1 (en) * | 2007-04-19 | 2008-10-30 | Terex-Demag Gmbh | Auxiliary device for installing the lower and upper jib support of an adjustable auxiliary boom on a mobile crane |
| CN101424073A (en) * | 2008-12-04 | 2009-05-06 | 中铁大桥局股份有限公司 | Bridge deck and steel girder second combination method for whole arch precasted steel-concrete composite continuous box girder |
| CN101838968A (en) * | 2010-05-19 | 2010-09-22 | 中铁二十局集团有限公司 | Double track bridge construction process crossing existing railway operational lines |
| CN102409607A (en) * | 2011-09-26 | 2012-04-11 | 上海市城市建设设计研究总院 | Separately precast and assembled bent cap and construction technology |
| CN107542470A (en) * | 2017-08-30 | 2018-01-05 | 中铁三局集团有限公司 | Existing railway Business Line construction method is worn under the shallow tunnel of karst broken region |
| CN108166395A (en) * | 2017-12-26 | 2018-06-15 | 中铁四局集团路桥工程有限公司 | A kind of construction method that beam bridge is built across Business Line |
| CN108487072A (en) * | 2018-04-10 | 2018-09-04 | 中铁四局集团第二工程有限公司 | Across Business Line railway cast-in-place frame bridge rapid constructing method in one kind |
| CN109457626A (en) * | 2018-10-18 | 2019-03-12 | 广西路桥工程集团有限公司 | A method of precast beam being installed in height-limit area |
| CN109989349A (en) * | 2019-03-26 | 2019-07-09 | 中铁七局集团有限公司 | A kind of Continuous Beam-arch Bridge steel tube arch rib construction method of installation |
| CN111074893A (en) * | 2019-12-25 | 2020-04-28 | 红河哈尼族彝族自治州水利水电工程地质勘察咨询规划研究院 | Construction system and construction method of concrete cushion layer of river levee dam |
| CN112211103A (en) * | 2020-10-10 | 2021-01-12 | 山西省工业设备安装集团有限公司 | Special safe construction process for assembling and installing coal conveying trestle steel truss |
| CN113202028A (en) * | 2021-04-08 | 2021-08-03 | 中铁六局集团有限公司 | Construction method for erecting large-span box girder by railway bridge girder erection machine on upper-span business line |
-
2022
- 2022-01-24 CN CN202210080460.4A patent/CN114277695A/en active Pending
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2008128533A1 (en) * | 2007-04-19 | 2008-10-30 | Terex-Demag Gmbh | Auxiliary device for installing the lower and upper jib support of an adjustable auxiliary boom on a mobile crane |
| CN101424073A (en) * | 2008-12-04 | 2009-05-06 | 中铁大桥局股份有限公司 | Bridge deck and steel girder second combination method for whole arch precasted steel-concrete composite continuous box girder |
| CN101838968A (en) * | 2010-05-19 | 2010-09-22 | 中铁二十局集团有限公司 | Double track bridge construction process crossing existing railway operational lines |
| CN102409607A (en) * | 2011-09-26 | 2012-04-11 | 上海市城市建设设计研究总院 | Separately precast and assembled bent cap and construction technology |
| CN107542470A (en) * | 2017-08-30 | 2018-01-05 | 中铁三局集团有限公司 | Existing railway Business Line construction method is worn under the shallow tunnel of karst broken region |
| CN108166395A (en) * | 2017-12-26 | 2018-06-15 | 中铁四局集团路桥工程有限公司 | A kind of construction method that beam bridge is built across Business Line |
| CN108487072A (en) * | 2018-04-10 | 2018-09-04 | 中铁四局集团第二工程有限公司 | Across Business Line railway cast-in-place frame bridge rapid constructing method in one kind |
| CN109457626A (en) * | 2018-10-18 | 2019-03-12 | 广西路桥工程集团有限公司 | A method of precast beam being installed in height-limit area |
| CN109989349A (en) * | 2019-03-26 | 2019-07-09 | 中铁七局集团有限公司 | A kind of Continuous Beam-arch Bridge steel tube arch rib construction method of installation |
| CN111074893A (en) * | 2019-12-25 | 2020-04-28 | 红河哈尼族彝族自治州水利水电工程地质勘察咨询规划研究院 | Construction system and construction method of concrete cushion layer of river levee dam |
| CN112211103A (en) * | 2020-10-10 | 2021-01-12 | 山西省工业设备安装集团有限公司 | Special safe construction process for assembling and installing coal conveying trestle steel truss |
| CN113202028A (en) * | 2021-04-08 | 2021-08-03 | 中铁六局集团有限公司 | Construction method for erecting large-span box girder by railway bridge girder erection machine on upper-span business line |
Non-Patent Citations (1)
| Title |
|---|
| 谭金华等: "《桥梁钢结构》", 28 February 2013, 武汉理工大学出版社, pages: 192 - 195 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105839536A (en) | Construction method of cable-stayed bridge pylon | |
| CN110804952B (en) | Suspension bridge beam prefabrication and assembly construction process | |
| CN102966050B (en) | Longitudinal connection method for steel-concrete combined beam and existing reinforced concrete T beam | |
| CN110761168A (en) | Design and construction method of cable-first beam-second self-anchored suspension bridge | |
| CN104153284A (en) | Partial filling type steel box concrete continuous composite girder bridge and construction method thereof | |
| CN108755962A (en) | A kind of partial precast assembly hollow profile steel concrete hollow column and construction method | |
| CN110359671B (en) | Construction method of assembled rail top air duct | |
| CN114855839A (en) | Steel suspension box applied to hydraulic structure and construction method thereof | |
| CN109371852A (en) | A kind of high-level bridge construction method across rail yard | |
| CN112982139A (en) | Wide-width large-span hybrid beam and short-tower cable-stayed bridge system and construction method thereof | |
| CN114277695A (en) | Construction method of steel reinforced concrete composite beam close to business line | |
| CN109610707B (en) | Assembly structure with parallel and level prefabricated steel beams and floor slab and rapid construction method | |
| CN205776898U (en) | Overall assembled reinforced concrete shear wall structure system | |
| CN112962455B (en) | Cable-first-beam-second segment hoisting self-anchored suspension bridge construction method | |
| CN105220609B (en) | Combined beam self-anchored suspension bridge and construction process thereof | |
| CN211395312U (en) | Upper structure for wide box girder and short tower cable-stayed bridge | |
| CN110847039B (en) | Full cantilever installation method of segmental precast concrete box girder | |
| CN106869403B (en) | Multilayer prefabricated square steel pipe concrete connecting beam | |
| CN216108617U (en) | Structure system of prefabricated reinforced concrete beam of underground station | |
| CN112342891B (en) | Construction method of stay cable steel arch landscape bridge | |
| CN218861320U (en) | T-shaped beam bridge deck connecting structure | |
| CN211848948U (en) | Sliding consolidation structure for continuous box girder cantilever pouring | |
| CN214993124U (en) | Lifting mechanism of through tied arch bridge | |
| CN219450477U (en) | Bridge construction structure and construction system | |
| CN216690515U (en) | Prefabricated slab railway canopy or protection canopy assembled structure of super large span |
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 |