CN112112073A - Piercing steel bar type supporting system and mounting method - Google Patents
Piercing steel bar type supporting system and mounting method Download PDFInfo
- Publication number
- CN112112073A CN112112073A CN202010470728.6A CN202010470728A CN112112073A CN 112112073 A CN112112073 A CN 112112073A CN 202010470728 A CN202010470728 A CN 202010470728A CN 112112073 A CN112112073 A CN 112112073A
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- steel bar
- solid steel
- supporting platform
- supporting
- scaffold
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D21/00—Methods or apparatus specially adapted for erecting or assembling bridges
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- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D2/00—Bridges characterised by the cross-section of their bearing spanning structure
- E01D2/04—Bridges characterised by the cross-section of their bearing spanning structure of the box-girder type
-
- 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
Abstract
The invention discloses a through steel bar type supporting system and an installation method, wherein the through steel bar type supporting system comprises the following steps: first supporting platform and second supporting platform, first supporting platform is used for providing support work platform for the tie beam modeling, second supporting platform is used for providing support work platform for the box girder modeling, second supporting platform with first supporting platform establish for the base in first supporting platform's top. The invention realizes the dual-purpose effect of one supporting system, reduces the installation and disassembly processes, saves the construction period and improves the working efficiency.
Description
Technical Field
The invention relates to the technical field of constructional engineering, in particular to a through steel bar type supporting system and an installation method.
Background
The bridge refers to a building constructed for a road to cross natural or artificial barriers, and is erected on rivers, lakes and seas, so that vehicles, pedestrians and the like can smoothly pass through the bridge; the bridge generally consists of an upper structure, a lower structure and an auxiliary structure, wherein the upper structure mainly refers to a bridge span structure and a support system; the lower structure comprises a bridge abutment, a bridge pier and a foundation; the auxiliary structures refer to bridge head butt straps, conical revetments, bank protection, diversion projects and the like; the bridge is divided according to a structural system and comprises four basic systems, namely a beam bridge, an arch bridge, a rigid bridge and a suspension cable bearing (a suspension bridge and a cable-stayed bridge).
The inventor of the invention finds that in the cast-in-place continuous box girder construction in the prior art, a steel trestle is usually erected as a supporting platform of a full-space bracket of an upper cast-in-place structure. The steel trestle support platform has the following problems:
1. the bailey pieces of the steel trestle supporting platform of the cast-in-place box girder at the position of the pier are cut off by the pier top tie beam and the pier and cannot be connected into a whole to bear force.
2. The thickness of the box girder top plate, the bottom plate and the web plate at the pier position is the maximum position of the variable cross-section box girder size, the existing steel trestle supporting platform structure is not beneficial to stress at the pier position, and the construction safety can not be guaranteed.
3. Meanwhile, the elevation of the bridge pier tie beam is positioned below the steel trestle supporting platform, and a tie beam template cannot be erected by directly utilizing the steel platform.
4. Because the restriction of construction on water, can't use traditional full hall frame of falling to the ground to be under construction.
Therefore, a through steel bar type supporting system and an installation method are provided.
Disclosure of Invention
The invention aims to provide a through steel bar type supporting system and an installation method, and aims to enhance the stress of the construction load of an upper box girder so as to improve the construction safety and the working efficiency.
The invention is realized by the following steps:
in a first aspect, the present invention provides a feed-through steel bar type support system, comprising: first supporting platform and second supporting platform, first supporting platform is used for providing support work platform for the tie beam modeling, second supporting platform is used for providing support work platform for the box girder modeling, second supporting platform with first supporting platform establish for the base in first supporting platform's top.
Further, the first supporting platform comprises a first solid steel bar, a second solid steel bar, two I-steel main beams, four supporting vertical rods, an auxiliary beam and a first scaffold board, the first solid steel bar and the second solid steel bar vertically penetrate through two adjacent pillars respectively, two ends of the first solid steel bar and two ends of the second solid steel bar respectively extend out of the pillars, the first solid steel bar and the second solid steel bar are arranged in parallel and are positioned on the same horizontal plane, the two I-steel main beams are symmetrically arranged on two sides of the pillars and are vertically arranged with the pillars and are vertically welded and fixed with the first solid steel bar and the second solid steel bar, two of the four supporting vertical rods are arranged on one side of the pillars, the top ends of the two supporting vertical rods are vertically provided with the auxiliary beam, the other two supporting vertical rods of the four supporting vertical rods are arranged on the other side of the pillars, an auxiliary beam is also vertically installed on the top ends of the other two supporting vertical rods, the auxiliary beam is parallel to the I-shaped steel main beam, the upper end face of the auxiliary beam and the upper end face of the main beam are on the same horizontal plane, and the first scaffold is installed between the I-shaped steel main beam and the auxiliary beam.
Further, a plurality of connecting cross beams are also erected between the I-shaped steel main beam and the auxiliary beam and are positioned below the first scaffold and are fixedly welded with the first scaffold.
Further, PVC pipes are installed on the peripheries of the first solid steel bar and the second solid steel bar.
Further, the second support platform comprises a plurality of Bailey beams and a second scaffold, the Bailey beams are arranged on the first scaffold in parallel along the vehicle running direction, and the second scaffold is arranged above the Bailey beams.
In a second aspect, the invention provides a method for installing a through steel bar type supporting system, which comprises the following steps:
step S1: building a first supporting platform, wherein the first supporting platform is used for providing a supporting working platform for the modeling of the tie beam;
step S2: and constructing a first supporting platform by taking the first supporting platform as a substrate.
Further, the step S1 includes the following steps:
step S101: in the same horizontal plane, vertically inserting a first solid steel bar and a second solid steel bar into two adjacent pier studs respectively; two ends of the first solid steel bar and the second solid steel bar respectively extend out of the pier stud;
step S102: i-shaped steel girders are respectively installed above two ends of the first solid steel bar and the second solid steel plate and are respectively and vertically arranged with the pier stud and the solid steel bar;
step S103: the method comprises the following steps that an auxiliary beam and a support rod are installed by taking the upper surface of an I-shaped steel main beam as an elevation, and the auxiliary beam and the I-shaped steel main beam are arranged in parallel;
step S104: and a first scaffold is erected between the I-shaped steel main beam and the auxiliary beam.
Further, still include before setting up first scaffold frame, parallel welding many connecting beam between the I-steel girder with the auxiliary beam.
Further, before inserting the first solid steel bar and the second solid steel bar, the method further comprises the following steps:
and pre-embedding a PVC pipe in the pier stud so as to transfer the first solid steel bar and the second solid steel bar into the PVC pipe.
Further, the step S2 includes:
step S201: a plurality of Bailey beams are arranged on the first scaffold in parallel along the running direction of the vehicle;
step S202: and installing a second scaffold above the plurality of Bailey beams.
Compared with the prior art, the invention has the beneficial effects that:
1. the supporting system comprises a first supporting platform and a second supporting platform, according to the construction process from lower construction to upper construction, the first supporting platform is built firstly and serves as an operation working platform for building a bottom die and a side die of a tie beam, the second supporting platform is built on the basis of the first supporting platform after the tie beam is built and serves as an operation platform for building a box beam, the dual-purpose effect of the supporting system is achieved, the mounting and dismounting process is reduced, the construction period is shortened, and the working efficiency is improved.
2. Through building the second supporting platform on first supporting platform, transmit the construction load of upper portion case roof beam for the pier stud through I-steel girder and solid rod iron, increased the atress, improved the construction security.
3. Through the main atress component of regard as whole braced system with solid rod iron, abandon traditional structure that falls to the ground full hall frame, be favorable to the construction operation on water.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.
FIG. 1 is a schematic perspective view of the support system of the present invention;
FIG. 2 is a schematic perspective view of a portion of the support system of the present invention;
FIG. 3 is a front view of the support system of the present invention;
FIG. 4 is a top view of the support system of the present invention;
figure 5 is a side view of the support system of the present invention.
Wherein, 1, pier stud; 2. a first solid steel bar; 3. a second solid steel bar; 4. an I-steel main beam; 5. supporting the upright stanchion; 6. an auxiliary beam; 7. a first scaffold board; 8. a Bailey beam; 9. a second scaffold board; 10. tying a beam; 11. short steel pipes; 12. jacking; 13. main corrugation; 14. and (5) secondary corrugation.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
As shown in fig. 1 and 2, the present invention provides a piercing steel rod type supporting system, comprising: first supporting platform and second supporting platform, first supporting platform is used for providing support work platform for tie beam 10 modeling, second supporting platform is used for providing support work platform for box girder modeling, second supporting platform with first supporting platform establish for the base in first supporting platform's top.
In the present embodiment, the tie beam 10 of the present application refers to the tie beam 10 at the top end position of the pier 1.
Further, the first supporting platform comprises a first solid steel bar 2, a second solid steel bar 3, two I-shaped steel main beams 4, four supporting vertical rods 5, an auxiliary beam 6 and a first scaffold board 7, the first solid steel bar 2 and the second solid steel bar 3 vertically penetrate two adjacent piers respectively, two ends of the first solid steel bar 2 and two ends of the second solid steel bar 3 respectively extend out of the piers, the first solid steel bar 2 and the second solid steel bar 3 are arranged in parallel and are positioned on the same horizontal plane, the two I-shaped steel main beams 4 are symmetrically arranged at two sides of each pier 1 and are vertically arranged with the pier 1 and are vertically welded and fixed with the first solid steel bar 2 and the second solid steel bar 3, two of the four supporting vertical rods 5 are arranged at one side of the pier 1, the auxiliary beam 6 is vertically arranged at the top ends of the two supporting vertical rods 5, the other two support pole settings 5 in four support pole settings 5 are installed the opposite side of pier stud 1, an auxiliary beam 6 is also installed perpendicularly on the top of two other support pole settings 5, auxiliary beam 6 with I-steel girder 4 parallel arrangement, just the up end of auxiliary beam 6 with the up end of girder is on same horizontal plane, first scaffold frame is installed between I-steel girder 4 and the auxiliary beam 6.
Further, a plurality of connecting cross beams are also erected between the I-shaped steel main beam 4 and the auxiliary beam 6 and are positioned below the first scaffold and are fixedly welded with the first scaffold.
Further, the periphery of the first solid steel bar 2 and the second solid steel bar 3 is provided with a PVC pipe.
Further, the second support platform includes a plurality of bery beams 8 and a second scaffold, the plurality of bery beams 8 are installed in parallel on the first scaffold along the vehicle traveling direction, and the second scaffold is installed above the plurality of bery beams 8.
The invention provides a method for installing a through steel bar type supporting system, which comprises the following steps:
step S1: building a first supporting platform, wherein the first supporting platform is used for providing a supporting working platform for modeling the tie beam 10;
step S2: and constructing a first supporting platform by taking the first supporting platform as a substrate.
Further, the step S1 includes the following steps:
step S101: in the same horizontal plane, a first solid steel bar 2 and a second solid steel bar 3 are respectively and vertically inserted into two adjacent pier studs 1; two ends of the first solid steel bar 2 and the second solid steel bar 3 respectively extend out of the pier stud;
step S102: i-shaped steel main beams 4 are respectively arranged above two ends of the first solid steel bar 2 and the second solid steel plate, and the I-shaped steel main beams 4 are respectively vertical to the pier stud 1 and the solid steel bar;
step S103: an auxiliary beam 6 and a support rod are installed by taking the upper surface of the I-shaped steel main beam 4 as an elevation, and the auxiliary beam 6 is arranged in parallel with the I-shaped steel main beam 4;
step S104: and a first scaffold is erected between the I-shaped steel main beam 4 and the auxiliary beam 6.
Further, before the first scaffold is erected, a plurality of connecting cross beams are welded between the I-shaped steel main beam 4 and the auxiliary beam 6 in parallel.
Further, before inserting the first solid steel bar 2 and the second solid steel bar 3, the method further comprises the following steps:
the pier stud 1 is embedded with a PVC pipe in advance so as to transmit the first solid steel bar 2 and the second solid steel bar 3 into the PVC pipe.
Further, the step S2 includes:
step S201: a plurality of Bailey beams 8 are arranged on the first scaffold in parallel along the running direction of the vehicle;
step S202: a second scaffold is installed above the plurality of beret beams 8.
A specific embodiment is given below, in which,
first, preparation before construction is performed.
Second, the payoff is measured.
And thirdly, installing the steel bars of the pier stud 1 and embedding 100mm hard PVC pipes.
And fourthly, pouring the pier stud 1.
And fifthly, inserting a first solid steel bar 2 and a second solid steel bar 3 of Q345 with the diameter of 9cm and the length of 210 cm.
And sixthly, hoisting the I45a I-steel main beam 4.
And seventhly, building a first scaffold to provide an operation platform for modeling and pouring the tie beam 10.
Eighthly, constructing the tie beam 10, and specifically, as shown in fig. 3-5, firstly welding a plurality of short steel pipes 11 which are arranged in parallel on the upper surface of the I-steel main beam 4, installing a top support 12 at the top of each short steel pipe 11, then installing an I10 main ridge 13 above the top support 12, wherein the main ridge 13 is vertical to the short steel pipes 11, then installing 10cm multiplied by 10cm secondary ridges 14, the secondary ridges 14 are respectively vertical to the main ridge 13 and the pier stud 1, then installing a bottom template and a side template of the tie beam 10, implanting reinforcing steel bars, and finally pouring concrete.
And ninthly, removing the supporting pieces such as the short steel pipe 11, the main rib 13, the secondary rib 14 and the like, and keeping the I-shaped steel girder 4, the first solid steel bar 2 and the second solid steel bar 3.
And ninthly, building a second supporting platform for pouring the box girder, firstly mounting a plurality of Bailey girders 8 on the first scaffold in parallel, then vertically mounting I25a bridge deck transverse distribution girders above the Bailey girders 8, and then mounting a pattern steel plate with the thickness of 1cm as an operation platform for pouring the box girder.
And tenth, dismantling the support system, pulling out the solid steel bar and plugging the pipe holes of the PVC pipe.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes may be made to the present invention by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A feed-through bar iron type support system, comprising: first supporting platform and second supporting platform, first supporting platform is used for providing support work platform for the tie beam modeling, second supporting platform is used for providing support work platform for the box girder modeling, second supporting platform with first supporting platform establish for the base in first supporting platform's top.
2. The through-core steel bar type supporting system according to claim 1, wherein the first supporting platform comprises a first solid steel bar, a second solid steel bar, two I-shaped steel main beams, four supporting vertical rods, an auxiliary beam and a first scaffold board, the first solid steel bar and the second solid steel bar respectively vertically penetrate through two adjacent piers, two ends of the first solid steel bar and the second solid steel bar respectively extend out of the piers, the first solid steel bar and the second solid steel bar are arranged in parallel and are positioned on the same horizontal plane, the two I-shaped steel main beams are symmetrically arranged on two sides of the piers, are vertically arranged with the piers and are vertically welded and fixed with the first solid steel bar and the second solid steel bar, two of the four supporting vertical rods are arranged on one side of the piers, and the top ends of the two supporting vertical rods are vertically arranged with the auxiliary beam, the other two support pole settings in four support pole settings are installed the opposite side of pier stud, an auxiliary beam is also installed perpendicularly on the top of two other support pole settings, the auxiliary beam with I-steel girder parallel arrangement, just the up end of auxiliary beam with the up end of girder is on same horizontal plane, first scaffold frame is installed between I-steel girder and the auxiliary beam.
3. The penetrating steel bar type supporting system according to claim 2, wherein a plurality of connecting cross beams are further erected between the I-steel main beam and the auxiliary beam, and the connecting cross beams are located below the first scaffold and are welded and fixed with the first scaffold.
4. A feed-through steel rod support system according to claim 2, wherein the first solid steel rod and the second solid steel rod are peripherally fitted with PVC pipes.
5. A feed-through bar support system according to claim 2, wherein the second support platform comprises a plurality of beret beams mounted in parallel on the first scaffold in the direction of vehicle travel and a second scaffold mounted above the plurality of beret beams.
6. A method for installing a through steel bar type supporting system is characterized by comprising the following steps:
step S1: building a first supporting platform, wherein the first supporting platform is used for providing a supporting working platform for the modeling of the tie beam;
step S2: and constructing a first supporting platform by taking the first supporting platform as a substrate.
7. The method for installing a piercing rod support system as claimed in claim 6, wherein the step S1 includes the steps of:
step S101: in the same horizontal plane, vertically inserting a first solid steel bar and a second solid steel bar into two adjacent pier studs respectively; two ends of the first solid steel bar and the second solid steel bar respectively extend out of the pier stud;
step S102: i-shaped steel girders are respectively installed above two ends of the first solid steel bar and the second solid steel plate and are respectively and vertically arranged with the pier stud and the solid steel bar;
step S103: the method comprises the following steps that an auxiliary beam and a support rod are installed by taking the upper surface of an I-shaped steel main beam as an elevation, and the auxiliary beam and the I-shaped steel main beam are arranged in parallel;
step S104: and a first scaffold is erected between the I-shaped steel main beam and the auxiliary beam.
8. The method of claim 7, further comprising welding a plurality of connecting beams in parallel between the I-beam main beam and the auxiliary beam before the step of erecting the first scaffold.
9. The method of installing a feed-through steel bar support system of claim 7, further comprising, prior to inserting the first solid steel bar and the second solid steel bar:
and pre-embedding a PVC pipe in the pier stud so as to transfer the first solid steel bar and the second solid steel bar into the PVC pipe.
10. The method for installing a piercing rod support system as claimed in claim 7, wherein the step S2 includes:
step S201: a plurality of Bailey beams are arranged on the first scaffold in parallel along the running direction of the vehicle;
step S202: and installing a second scaffold above the plurality of Bailey beams.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470728.6A CN112112073A (en) | 2020-05-28 | 2020-05-28 | Piercing steel bar type supporting system and mounting method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010470728.6A CN112112073A (en) | 2020-05-28 | 2020-05-28 | Piercing steel bar type supporting system and mounting method |
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| CN112112073A true CN112112073A (en) | 2020-12-22 |
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| CN202010470728.6A Pending CN112112073A (en) | 2020-05-28 | 2020-05-28 | Piercing steel bar type supporting system and mounting method |
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1043421A (en) * | 1962-06-01 | 1966-09-21 | Erich Lubbert | Prestressed concrete bridge-like elevated highway |
| FR2157517A5 (en) * | 1971-10-15 | 1973-06-01 | Bataafse Aanneming Mi Nv | |
| CN101191382A (en) * | 2006-11-30 | 2008-06-04 | 上海市第一建筑有限公司 | Steel pillar supporting type integral self-lifting steel platform scaffold template system and constructing method thereof |
| CN101514542A (en) * | 2009-03-18 | 2009-08-26 | 上海同演建筑科技有限公司 | Device for overhauling bridge approach pier, bent cap and box girder of a bridge |
| CN103088756A (en) * | 2013-02-01 | 2013-05-08 | 葛洲坝集团第二工程有限公司 | Steel bar bearing constructing method of bent cap construction platform |
| CN203530848U (en) * | 2013-09-24 | 2014-04-09 | 中国十七冶集团有限公司 | Supporting support for bridge beam capping beam formwork |
| CN105603884A (en) * | 2016-03-08 | 2016-05-25 | 中国水利水电第十四工程局有限公司 | Safety protection platform for bridge cap beam construction |
| CN207633222U (en) * | 2017-12-06 | 2018-07-20 | 中铁二十三局集团第三工程有限公司 | Bridge pier binder Coping Construction platform |
| CN110184928A (en) * | 2019-05-14 | 2019-08-30 | 宁波市政工程建设集团股份有限公司 | A kind of pier stud construction method that the public rail using falsework is built together overhead |
-
2020
- 2020-05-28 CN CN202010470728.6A patent/CN112112073A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1043421A (en) * | 1962-06-01 | 1966-09-21 | Erich Lubbert | Prestressed concrete bridge-like elevated highway |
| FR2157517A5 (en) * | 1971-10-15 | 1973-06-01 | Bataafse Aanneming Mi Nv | |
| CN101191382A (en) * | 2006-11-30 | 2008-06-04 | 上海市第一建筑有限公司 | Steel pillar supporting type integral self-lifting steel platform scaffold template system and constructing method thereof |
| CN101514542A (en) * | 2009-03-18 | 2009-08-26 | 上海同演建筑科技有限公司 | Device for overhauling bridge approach pier, bent cap and box girder of a bridge |
| CN103088756A (en) * | 2013-02-01 | 2013-05-08 | 葛洲坝集团第二工程有限公司 | Steel bar bearing constructing method of bent cap construction platform |
| CN203530848U (en) * | 2013-09-24 | 2014-04-09 | 中国十七冶集团有限公司 | Supporting support for bridge beam capping beam formwork |
| CN105603884A (en) * | 2016-03-08 | 2016-05-25 | 中国水利水电第十四工程局有限公司 | Safety protection platform for bridge cap beam construction |
| CN207633222U (en) * | 2017-12-06 | 2018-07-20 | 中铁二十三局集团第三工程有限公司 | Bridge pier binder Coping Construction platform |
| CN110184928A (en) * | 2019-05-14 | 2019-08-30 | 宁波市政工程建设集团股份有限公司 | A kind of pier stud construction method that the public rail using falsework is built together overhead |
Non-Patent Citations (2)
| Title |
|---|
| 王振辉: "桥梁施工中现浇盖梁支架的设计与施工", 《隧道建设》 * |
| 谢钦建: "西地大桥中系盖梁施工技术探讨", 《低碳世界》 * |
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Application publication date: 20201222 |