CN119041304A - Large cantilever bent cap lower chord reverse support bracket system and construction method thereof - Google Patents
Large cantilever bent cap lower chord reverse support bracket system and construction method thereof Download PDFInfo
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- CN119041304A CN119041304A CN202411388986.4A CN202411388986A CN119041304A CN 119041304 A CN119041304 A CN 119041304A CN 202411388986 A CN202411388986 A CN 202411388986A CN 119041304 A CN119041304 A CN 119041304A
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- 238000010276 construction Methods 0.000 title claims abstract description 59
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 125
- 239000010959 steel Substances 0.000 claims abstract description 125
- 244000035744 Hura crepitans Species 0.000 claims abstract description 42
- 238000009826 distribution Methods 0.000 claims abstract description 34
- 230000002787 reinforcement Effects 0.000 claims abstract description 29
- 238000009434 installation Methods 0.000 claims description 32
- 230000003014 reinforcing effect Effects 0.000 claims description 21
- 238000013461 design Methods 0.000 claims description 13
- 238000005259 measurement Methods 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 238000009415 formwork Methods 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 3
- 238000005728 strengthening Methods 0.000 claims 3
- 239000002023 wood Substances 0.000 claims 2
- 238000000034 method Methods 0.000 description 8
- 230000008878 coupling Effects 0.000 description 4
- 238000010168 coupling process Methods 0.000 description 4
- 238000005859 coupling reaction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000087 stabilizing effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000009432 framing Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- 239000002390 adhesive tape Substances 0.000 description 2
- 238000004873 anchoring Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Classifications
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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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Abstract
本发明涉及一种大悬臂盖梁下弦杆反向支撑支架体系及其施工方法，该体系包括承台、钢管柱、抱柱、砂箱、分配梁、加强型贝雷梁、承重梁、贝雷梁加固组件和龙骨底模组件，钢管柱安装在承台的预埋法兰盘上；抱柱包括横向槽钢和斜向槽钢；砂箱安装在钢管柱顶部，分配梁固定安装在砂箱顶面；加强型贝雷梁包括贝雷梁和加强弦杆；承重梁安装在贝雷梁下部；贝雷梁加固组件包括贝雷梁横向加固和贝雷梁竖向加固；龙骨底模组件包括底模主龙骨、次龙骨。本发明采用大悬臂和贝雷梁下弦杆反向支撑结合，受力合理，安全可靠，可解决大悬臂盖梁施工占地小、桥下净空不足的问题，可快速、经济的实现在支架体系上进行悬臂盖梁的现浇混凝土施工。
The present invention relates to a large cantilever cap beam lower chord reverse support bracket system and a construction method thereof, the system comprises a cap, a steel pipe column, a holding column, a sand box, a distribution beam, a reinforced Bailey beam, a load-bearing beam, a Bailey beam reinforcement assembly and a keel bottom mold assembly, the steel pipe column is installed on the embedded flange of the cap; the holding column comprises a transverse channel steel and an oblique channel steel; the sand box is installed on the top of the steel pipe column, and the distribution beam is fixedly installed on the top surface of the sand box; the reinforced Bailey beam comprises a Bailey beam and a reinforced chord; the load-bearing beam is installed at the bottom of the Bailey beam; the Bailey beam reinforcement assembly comprises a Bailey beam transverse reinforcement and a Bailey beam vertical reinforcement; the keel bottom mold assembly comprises a bottom mold main keel and a secondary keel. The present invention adopts a large cantilever and a Bailey beam lower chord reverse support combination, the force is reasonable, safe and reliable, can solve the problem of small occupation of large cantilever cap beam construction and insufficient clearance under the bridge, and can quickly and economically realize the cast-in-place concrete construction of the cantilever cap beam on the bracket system.
Description
Technical Field
The invention relates to the technical field of building construction, in particular to a large cantilever bent cap lower chord reverse support bracket system and a construction method thereof.
Background
The construction of the traditional viaduct bent cap generally adopts a form of a full framing. After the foundation treatment, a tray buckling frame or a steel pipe scaffold is adopted to be erected, and rods such as longitudinal and transverse upright rods, horizontal rods, diagonal rods and the like are used for forming a supporting system. The construction scheme occupies a large area and has high requirement on the basic bearing capacity. In addition, the viaduct for urban road occupation construction often does not have a site for building a full framing due to the limit of construction sites and insufficient clearance under the bridge, so that the road occupation construction principle of one-to-one construction cannot be met, traffic guiding is seriously influenced, and the construction cost and construction period of a guiding road are increased. Under the condition of limited field, the large cantilever bent cap is generally constructed by adopting a bracket method, and the bracket is divided into a floor bracket and a rod penetrating support bracket. The floor type bracket structure is relatively simple in structure and convenient to construct, the height of the bracket can be adjusted along with the height of the pier column, but when the pier column is high, huge bracket body quantity is large, huge investment is needed, the bracket is time-consuming and labor-consuming to install, inclined struts are needed to be arranged at the lower part of the cantilever end section, traffic is affected when the clearance under a bridge is insufficient, reserved pore channels are buried in the pier column in advance when pier column concrete is poured, steel bars are penetrated in the pore channels when the bracket is erected, construction load is transmitted to the pier column through the steel bars, the steel bars penetrate through the pier column, the problem that the construction load is finally born by the pier column does not exist, the pier column with any section can be used, turnover is facilitated, the bracket body quantity is increased due to the fact that the pier column height is not changed when the pier column is constructed by the high pier column, the bracket is simple and convenient to erect, the defects are mainly manifested in that the reserved pore channels are needed to be affected after construction, the requirements on the appearance quality of the pier column are high, the requirements are high on the pier column and the pier column at the supporting point, the pier column is not suitable for repairing the single-section pier column, and the cover beam is not suitable for repairing. The invention provides a large cantilever bent cap lower chord reverse support bracket system and a construction method thereof based on the research background, and aims to meet construction requirements.
Disclosure of Invention
The invention aims to provide a large cantilever bent cap lower chord reverse support bracket system and a construction method thereof, which are used for solving the problems of small occupied area, insufficient clearance under a bridge in the large cantilever bent cap construction, and can quickly and economically realize the cast-in-place concrete construction of the cantilever bent cap on the bracket system.
In order to achieve the above purpose, the invention adopts the following technical scheme:
The system comprises a bearing platform, steel pipe columns, holding columns, sand boxes, distribution beams, reinforced bailey beams, spandrel girders, bailey beam reinforcing components and keel bottom die components, wherein at least four steel pipe columns are symmetrically arranged on an embedded flange plate of the bearing platform in pairs through reserved bolts; the holding column comprises a transverse channel steel and an oblique channel steel, and the two longitudinal steel pipe columns are connected together through the transverse channel steel and the oblique channel steel between the two longitudinal steel pipe columns; the reinforced bailey beam comprises a plurality of sets of bailey beams and reinforcing chords, wherein the reinforcing chords are arranged at the upper part and the lower part of the bailey beams through bolts, each set of bailey beams is connected through a supporting frame, the reinforced bailey beams are arranged on the distribution beams, the spandrel beams are fixedly arranged on the lower chords and web members at the lower parts of the bailey beams through U-shaped clamps, the bailey beam reinforcing component comprises a bailey beam transverse reinforcement and a bailey beam vertical reinforcement, the bailey beam transverse reinforcement comprises a limiter, the limiter is welded on the distribution beams and is arranged at the left side and the right side of the bailey beam, 4 positions of the limiter are arranged on each distribution beam, transverse coupling systems are arranged between the bailey beams, the coupling systems adopt channel steel as a cross beam and a stabilizing structure formed by welding diagonal members, the two ends of the cross beam are firmly welded with clamping plates connected to the chords so as to integrate the bailey beams to limit the bailey beams in a large-span and a long vertical upright beam, the bailey beam comprises a bottom die, the reinforcing component comprises a main keel and a bottom die, the reinforcing component comprises a bottom die, and a main keel is arranged at the bottom die, the bottom die main keel comprises a tripod support arranged at the lower part of a cantilever end of the capping beam, the secondary keel is hung by a crane from a transverse bridge to square timber, the secondary keel is symmetrically arranged from the middle to two ends, multi-layer plates which are symmetrically arranged from the middle to two sides are paved on the secondary keel, the transverse and longitudinal joints are embedded by waterproof sponge rubber strips, and the multi-layer plates are fixedly connected with the square timber by nails.
The construction method of the large cantilever bent cap lower chord reverse support bracket system comprises the following steps:
1) The construction preparation and measurement paying-off process comprises the steps of bearing platform construction and measurement paying-off, wherein a flange plate is pre-buried during the bearing platform construction, U-shaped anchoring steel bars are arranged at the bottom of the flange plate, bolts are reserved on each pre-buried flange plate, the installation flatness is controlled to be less than or equal to 2mm during flange installation, the reserved bolts are protected by adhesive tapes to prevent concrete pollution, the positions of steel pipe columns are determined on the bearing platform and marked before the measuring paying-off construction, the design elevation of a beam bottom mould is measured on the bearing platform under the present condition, and the height of a steel pipe column is calculated according to the set-up heights of a main keel, a bailey beam and a sand box;
2) The steel pipe column is assembled and the steel pipe column is held by the steel pipe column, wherein 4 steel pipe columns are arranged on a bearing platform according to the design requirement, the steel pipe columns are positioned before construction and are arranged according to the preset spacing in the transverse direction and the forward direction, the steel pipe columns are connected with an embedded flange plate by adopting reserved bolts after being positioned, the verticality of the steel pipe is adjusted during installation, the verticality of the steel pipe is controlled through the reserved bolts and wedge-shaped steel plates when the bottom of the steel pipe is uneven, and finally the reserved bolts are fastened to fix the steel pipe column;
3) The sand box and the distribution beam are installed, wherein the sand box is installed at the top of the steel pipe column, the adjustable height of the sand box is 40-50cm, the sand box is placed in the middle during installation, the sand box and the steel pipe column are connected into a whole through bolts after positioning, 1 sand box is arranged on each steel pipe column, the top standard height of the sand box is equal to the thickness of a pier column top elevation, the thickness of a template, the thickness of a main keel, the thickness of a beret beam, the thickness of the distribution beam, the distribution beam adopts double-spliced 45b I-steel, and after the steel pipe column is welded into a whole on the ground, the steel pipe column is manually placed on the sand box through an automobile crane, and is fixedly connected with the top surface of the sand box through spot welding;
4) The reinforced type bailey beam is installed, wherein a main beam adopts the reinforced type bailey beam, the whole assembly is firstly carried out on the ground, reinforcing chords are arranged at the upper part and the lower part after the assembly of the bailey beam is completed, the bailey beams are connected with the bailey beam through bolts, a group of bailey beams are assembled each time, the bailey beams are connected through supporting frames, after the assembly of all the bailey beams is completed, the bailey beams are installed on a distribution beam through an automobile crane, symmetrical construction is adopted during the installation, the stability of the whole structure system is ensured, the position of the bailey beam is finely adjusted to be aligned in order to ensure that the spandrel beam can be smoothly penetrated, and a beam backing plate on a lower chord is removed before the installation of the bailey beam;
5) The bearing beam is installed, wherein the bearing beam is made of I-steel, is transversely arranged on the top surface of the lower chord member close to each node upright rod, is hoisted to one side of the main beam by a crane, is penetrated through a gap between the lower chord member and the web member of the bailey beam by manually matching with the automobile crane, and is fixedly connected with the bailey beam by a U-shaped clamp;
6) The bailey beam reinforcement comprises the bailey beam transverse reinforcement and the bailey beam vertical reinforcement, wherein in the bailey beam transverse reinforcement, the limiters are processed by adopting channel steel, the limiters are welded on the distribution beams and are arranged at the left side and the right side of the bailey beam, 4 limiters are arranged on each distribution beam, a transverse connection system is arranged between each group of bailey beams, the connection system adopts channel steel as a cross rod and a stabilizing structure formed by oblique rod assembly welding, and the two ends of the cross rod are firmly welded with clamping plates bolted on each chord rod to connect the bailey beams into a whole so as to limit the left-right swing of the bailey beam in a long cantilever state;
7) The bottom die main keel and the secondary keel are installed, wherein the main keel is supported by a tripod, a tripod support is arranged at the lower part of a cantilever end of the bent cap, the tripod is manufactured by channel steel, a vertical rib is arranged at the middle part of the tripod, so as to facilitate the operation of constructors, a construction platform is arranged at the outer side of the bent cap structure, the tripod support is transversely connected by a steel pipe fastener;
8) After the concrete pouring and tensioning of the bent cap are completed, the sand box is unloaded, and the main joist, the secondary joist, the Bailey beam and the steel pipe column of the bottom die are removed, so that the construction can be completed.
The large cantilever bent cap lower chord reverse support bracket system and the construction method thereof have the following beneficial effects:
The invention fully considers the difficulties of small clearance size under a main bridge of an actual construction project, more crossing roads, narrow construction sites and the like, through various technological comparison and repeated scheme demonstration, a large cantilever bent cap lower chord reverse support formwork system with limited space and a construction method thereof are designed, the problem that the conventional full-bridge bracket cannot interrupt traffic is solved, a bridge self-bearing platform is used as a bracket foundation, the working procedures are simplified, the bracket foundation treatment and the foundation construction are solved, a steel pipe column is assembled in place on the ground once, an automobile crane is connected with a flange plate pre-buried with the bracket foundation after being hoisted in place, a channel steel is adopted to form a stable structure by a drawknot, the whole stability of a supporting structure is ensured, a reinforced type bailey beam is used as a main beam, the transverse connection and the vertical reinforced upright pole are arranged, the strength, the rigidity, the stability and other requirements of the bailey beam are improved, the construction of the large cantilever bent cap is met, the main keel is arranged on the top surface of the lower chord of the bridge, the bracket lower vehicle is improved, the main subsection passing capacity is improved, the bridge bracket is assembled in place once, the bridge passing through the bridge is assembled in place, the limited passage bridge is disassembled, and the box is disassembled in a limited place, and the transmission mode is convenient to be disassembled.
The invention relates to a large cantilever bent cap lower chord reverse support bracket system, which mainly has the following technical points:
1. The large cantilever bent cap lower chord reverse support formwork system is adopted, so that the problem that traffic cannot be interrupted due to the fact that a conventional full framing is not achieved is solved.
2. The main joist is arranged on the top surface of the lower chord member of the bailey beam, so that the clearance height under the cantilever bracket is effectively improved, and the traffic capacity of vehicles under the cantilever bracket is improved.
3. The Bailey beam is reinforced by arranging the transverse connection and the vertical reinforcing upright rods, so that the requirements on strength, rigidity, stability and the like of the Bailey beam are improved, and the construction of the large cantilever bent cap is satisfied.
Drawings
FIG. 1 is a schematic structural view of a large cantilever bent cap lower chord reverse support bracket system of the present invention.
Fig. 2 is a flow chart of a construction method of a large cantilever bent cap lower chord reverse support bracket system.
Fig. 3 is a structural design of a steel pipe column according to the present invention, in which (a) is a steel pipe column elevation, (b) is a steel pipe column cross-sectional view, and (c) is a steel pipe column plan.
Fig. 4 is a design drawing of a steel pipe column holding column according to the present invention, wherein (a) is a vertical drawing of the holding column, (b) is a cross section drawing of the holding column, and (c) is a plan drawing of the holding column.
Fig. 5 is a diagram of the installation design of the bailey beam according to the present invention, in which (a) is a front elevation view of the installation of the bailey beam, (b) is a cross-sectional view of the installation of the bailey beam, and (c) is a plan view of the installation of the bailey beam.
Fig. 6 is a design diagram of the installation of the spandrel girder of the present invention, wherein (a) is an elevation diagram of the installation of the spandrel girder, (b) is a cross-sectional view of the installation of the spandrel girder, and (c) is a plan view of the installation of the spandrel girder.
Fig. 7 is a transverse reinforcing design drawing of the bailey beam, wherein (a) is an elevation drawing of transverse connection of the bailey beam, (b) is a 1-1 section schematic drawing, and (c) is a 2-2 section schematic drawing.
Fig. 8 is a vertical reinforcing design drawing of the beret beam of the present invention, wherein (a) is a vertical reinforcing upright pole elevation drawing, and (b) is a vertical reinforcing upright pole section drawing.
Figure 9 is a main runner and cross runner installation design of the present invention.
Detailed Description
The invention relates to a large cantilever bent cap lower chord reverse support bracket system and a construction method thereof, which are described in detail below with reference to figures 1-9.
The system comprises a bearing platform, steel pipe columns, holding columns, sand boxes, distribution beams, reinforced bailey beams, spandrel girders, bailey beam reinforcing components and keel bottom die components, wherein at least four steel pipe columns are symmetrically arranged on an embedded flange plate of the bearing platform in pairs through reserved bolts; the holding column comprises a transverse channel steel and an oblique channel steel, and the two longitudinal steel pipe columns are connected together through the transverse channel steel and the oblique channel steel between the two longitudinal steel pipe columns; the reinforced bailey beam comprises a plurality of sets of bailey beams and reinforcing chords, wherein the reinforcing chords are arranged at the upper part and the lower part of the bailey beams through bolts, each set of bailey beams is connected through a supporting frame, the reinforced bailey beams are arranged on the distribution beams, the spandrel beams are fixedly arranged on the lower chords and web members at the lower parts of the bailey beams through U-shaped clamps, the bailey beam reinforcing component comprises a bailey beam transverse reinforcement and a bailey beam vertical reinforcement, the bailey beam transverse reinforcement comprises a limiter, the limiter is welded on the distribution beams and is arranged at the left side and the right side of the bailey beam, 4 positions of the limiter are arranged on each distribution beam, transverse coupling systems are arranged between the bailey beams, the coupling systems adopt channel steel as a cross beam and a stabilizing structure formed by welding diagonal members, the two ends of the cross beam are firmly welded with clamping plates connected to the chords so as to integrate the bailey beams to limit the bailey beams in a large-span and a long vertical upright beam, the bailey beam comprises a bottom die, the reinforcing component comprises a main keel and a bottom die, the reinforcing component comprises a bottom die, and a main keel is arranged at the bottom die, the bottom die main keel comprises a tripod support arranged at the lower part of a cantilever end of the capping beam, the secondary keel is hung by a crane from a transverse bridge to square timber, the secondary keel is symmetrically arranged from the middle to two ends, multi-layer plates which are symmetrically arranged from the middle to two sides are paved on the secondary keel, the transverse and longitudinal joints are embedded by waterproof sponge rubber strips, and the multi-layer plates are fixedly connected with the square timber by nails.
The construction method of the large cantilever bent cap lower chord reverse support bracket system comprises the following steps:
1) The construction preparation and measurement paying-off process comprises the steps of bearing platform construction and measurement paying-off, wherein a flange plate is pre-buried during the bearing platform construction, U-shaped anchoring steel bars are arranged at the bottom of the flange plate, bolts are reserved on each pre-buried flange plate, the installation flatness is controlled to be less than or equal to 2mm during flange installation, the reserved bolts are protected by adhesive tapes to prevent concrete pollution, the positions of steel pipe columns are determined on the bearing platform and marked before the measuring paying-off construction, the design elevation of a beam bottom mould is measured on the bearing platform under the present condition, and the height of a steel pipe column is calculated according to the set-up heights of a main keel, a bailey beam and a sand box;
2) The steel pipe column is assembled and the steel pipe column is held by the steel pipe column, wherein 4 steel pipe columns are arranged on a bearing platform according to the design requirement, the steel pipe columns are positioned before construction and are arranged according to the preset spacing in the transverse direction and the forward direction, the steel pipe columns are connected with an embedded flange plate by adopting reserved bolts after being positioned, the verticality of the steel pipe is adjusted during installation, the verticality of the steel pipe is controlled through the reserved bolts and wedge-shaped steel plates when the bottom of the steel pipe is uneven, and finally the reserved bolts are fastened to fix the steel pipe column;
3) The sand box and the distribution beam are installed, wherein the sand box is installed at the top of the steel pipe column, the adjustable height of the sand box is 40-50cm, the sand box is placed in the middle during installation, the sand box and the steel pipe column are connected into a whole through bolts after positioning, 1 sand box is arranged on each steel pipe column, the top standard height of the sand box is equal to the thickness of a pier column top elevation, the thickness of a template, the thickness of a main keel, the thickness of a beret beam, the thickness of the distribution beam, the distribution beam adopts double-spliced 45b I-steel, and after the steel pipe column is welded into a whole on the ground, the steel pipe column is manually placed on the sand box through an automobile crane, and is fixedly connected with the top surface of the sand box through spot welding;
4) The reinforced type bailey beam is installed, wherein a main beam adopts the reinforced type bailey beam, the whole assembly is firstly carried out on the ground, reinforcing chords are arranged at the upper part and the lower part after the assembly of the bailey beam is completed, the bailey beams are connected with the bailey beam through bolts, a group of bailey beams are assembled each time, the bailey beams are connected through supporting frames, after the assembly of all the bailey beams is completed, the bailey beams are installed on a distribution beam through an automobile crane, symmetrical construction is adopted during the installation, the stability of the whole structure system is ensured, the position of the bailey beam is finely adjusted to be aligned in order to ensure that the spandrel beam can be smoothly penetrated, and a beam backing plate on a lower chord is removed before the installation of the bailey beam;
5) The bearing beam is installed, wherein the bearing beam is made of I-steel, is transversely arranged on the top surface of the lower chord member close to each node upright rod, is hoisted to one side of the main beam by a crane, is penetrated through a gap between the lower chord member and the web member of the bailey beam by manually matching with the automobile crane, and is fixedly connected with the bailey beam by a U-shaped clamp;
6) The bailey beam reinforcement comprises the bailey beam transverse reinforcement and the bailey beam vertical reinforcement, wherein in the bailey beam transverse reinforcement, the limiters are processed by adopting channel steel, the limiters are welded on the distribution beams and are arranged at the left side and the right side of the bailey beam, 4 limiters are arranged on each distribution beam, a transverse connection system is arranged between each group of bailey beams, the connection system adopts channel steel as a cross rod and a stabilizing structure formed by oblique rod assembly welding, and the two ends of the cross rod are firmly welded with clamping plates bolted on each chord rod to connect the bailey beams into a whole so as to limit the left-right swing of the bailey beam in a long cantilever state;
7) The bottom die main keel and the secondary keel are installed, wherein the main keel is supported by a tripod, a tripod support is arranged at the lower part of a cantilever end of the bent cap, the tripod is manufactured by channel steel, a vertical rib is arranged at the middle part of the tripod, so as to facilitate the operation of constructors, a construction platform is arranged at the outer side of the bent cap structure, the tripod support is transversely connected by a steel pipe fastener;
8) After the concrete pouring and tensioning of the bent cap are completed, the sand box is unloaded, and the main joist, the secondary joist, the Bailey beam and the steel pipe column of the bottom die are removed, so that the construction can be completed.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411388986.4A CN119041304A (en) | 2024-10-08 | 2024-10-08 | Large cantilever bent cap lower chord reverse support bracket system and construction method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411388986.4A CN119041304A (en) | 2024-10-08 | 2024-10-08 | Large cantilever bent cap lower chord reverse support bracket system and construction method thereof |
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| Publication Number | Publication Date |
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| CN119041304A true CN119041304A (en) | 2024-11-29 |
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|---|---|---|---|
| CN202411388986.4A Pending CN119041304A (en) | 2024-10-08 | 2024-10-08 | Large cantilever bent cap lower chord reverse support bracket system and construction method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120967813A (en) * | 2025-08-22 | 2025-11-18 | 北京城建集团有限责任公司 | Large-span cast-in-situ capping beam construction method based on limited space |
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2024
- 2024-10-08 CN CN202411388986.4A patent/CN119041304A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120967813A (en) * | 2025-08-22 | 2025-11-18 | 北京城建集团有限责任公司 | Large-span cast-in-situ capping beam construction method based on limited space |
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