A load-bearing system for cast-in-place concrete methods with prefabricated continuous beams on a side span
The support system for in-situ concrete with prefabricated continuous beams addresses high-altitude welding risks and inefficient assembly by using I-profile beams and steel columns with round brackets, ensuring efficient and safe construction and recycling.
Patent Information
- Application Number
- DE202024105936
- Authority / Receiving Office
- DE · DE
- Patent Type
- Utility models
- Current Assignee / Owner
- Filing Date
- 2024-10-15
- Publication Date
- 2024-12-19
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing bridge construction methods using in-situ concrete with continuous beams face challenges such as high-altitude welding risks, poor recycling rates, and inefficient assembly, particularly in high-speed railway environments, leading to prolonged construction periods and increased costs.
A support system for in-situ concrete with prefabricated continuous beams using I-profile distribution beams, steel columns with round brackets, and an intelligent hydraulic system, along with a positioning mechanism and monitoring points, allowing for assembly and recycling without high-altitude welding, and ensuring structural stability and safety.
The system enables safe, efficient, and cost-effective assembly and recycling of bridge components, reducing high-altitude risks and shortening construction times while maintaining structural integrity and safety.
Smart Images
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Abstract
Description
Field of expertise
[0001] The present application relates to the field of continuous beams of the support system, in particular a support system for cast-in-place concrete methods with prefabricated continuous beams on side spans. Technical background
[0002] With ever-improving technology in bridge construction, the installation of continuous girders over rivers, railway lines, and other large structures has become commonplace. The question of how to build bridges safely and in an environmentally friendly way has also led many scientists to delve deeper into the field of bridge construction, its manufacturing technology, and its application.
[0003] In-situ concrete construction with continuous beams on side spans, the main methods used are full-space support, frame, and cantilever methods. These techniques are mature, safe, and reliable. However, in the construction environment of high-speed railways, facilitating transportation, assembly, recycling, and reducing costs and increasing efficiency have become challenging issues in today's construction industry.Conventional steel column supports are welded. Firstly, it is easy to cause weld burns in the cross section of the steel column, which affects the strength and has poor recycling rate. Secondly, the safety risk of high-altitude welding work is high, and it is difficult to meet the design requirements for welding quality and accuracy, which easily leads to tilt of the steel column. Thirdly, if the cross-connection components are assembled, welded, and removed on site, the construction period is long and the efficiency of high-altitude cutting work is low. Therefore, experts provide a cast-in-place concrete method support system with prefabricated continuous beams on side spans to solve the problems raised in the above-mentioned technical background. Content of the utility model to solve the problems raised in the above-mentioned technical background., the present application provides a support system for cast-in-place concrete methods with prefabricated continuous beams on side spans.
[0004] The support system for cast-in-place concrete with prefabricated continuous beams on side spans provided in this application offers the following technical solution:
[0005] A cast-in-place concrete support system using precast continuous beams on side spans. It includes an I-beam distribution girder, a plurality of I-beam longitudinal beams are arranged in the following longitudinal arrangement below the I-beam distribution girder, a steel fence is mounted on top of the I-beam distribution girder, and a wooden formwork is erected. The wooden formwork is used on site for concrete pouring of the girder body on the side span, a steel column is connected to the bottom of the I-beam longitudinal beam. It is characterized in that a positioning mechanism is attached to one end of the I-beam distribution girder, which extends to the top of the bridge pier, and there is a stable structure between the adjacent two steel tubes.
[0006] The positioning mechanism includes a double-packed I-beam clamped on the upper and lower sides of the I-beam distribution girder, and an I-beam leveling girder mounted on the end of the double-packed I-beam cross member. Between both ends of the I-beam leveling girder and the double-packed I-beam cross member, the vertically attached hanging rod made of fine-rolled reinforcing steel is installed. It is arranged so that the vertically attached hanging rod made of fine-rolled reinforcing steel passes through the I-beam distribution girder. The vertically attached hanging rod made of fine-rolled reinforcing steel is used to fix one end of the I-beam distribution girder near the bridge pier.
[0007] The horizontal cross connection component includes a round steel stirrup wrapped on the steel column, and a rubber gasket is further wrapped between the round steel stirrup and the steel column, and two adjacent round steel stirrups are provided with flat cross connecting cross braces, which is easy for assembly and recycling.
[0008] In addition, the round steel stirrup consists of steel sheets, or rather, two round steel sheets, corresponding to the size of the steel column. The round steel sheets are provided with stiffening ribs, and the two round steel sheets are additionally connected to each other by high-strength bolts. The round steel stirrup near the bridge piers is connected to I-beam wall fasteners, which are attached to the side surface of the bridge pier.
[0009] In addition, the steel column consists of several short steel tubes and between the upper and lower steel tubes is connected by a flange plate.
[0010] In addition, an intelligent hydraulic system is installed on the top of the steel column. The bottom of the I-beam longitudinal beam is also equipped with a plurality of transverse, double-spliced I-beam cross members. The double-spliced I-beam cross members are mounted on top of the intelligent hydraulic system, and the number of double-spliced I-beam cross members corresponds to the number of transverse rows of steel tubes.
[0011] In addition, there is still a monitoring point on the top of the steel tube to record the extraordinary stress on the steel column.
[0012] In summary, this application includes the following advantageous technical effects: 1. The utility model discloses a steel column composed of a plurality of short steel tubes and a flange connection, and the flange plates are connected by high-strength bolts. Welding of the steel tubes is unnecessary, thus avoiding damage to the steel tubes. The steel tubes and round steel stirrups are recyclable materials and can be recycled. Furthermore, the round steel stirrup can be first installed on the short steel column, and then the short steel tubes are assembled, and the round steel stirrup is fixed to the ground, thus reducing the frequency of high-altitude work and ensuring relative safety. Description of the attached illustration Fig. is a schematic side view of the structure of the present application; Fig. is a schematic front view of the structure of the present application; Fig. is a schematic representation of the horizontal cross-connection of the present application.
[0013] Description of symbols: 1.vertical suspended rod made of fine rolled reinforcing steel; 2. I-section leveling beam; 3.double packed I-section cross beam, 4. I-section distribution beam; 5. I-section longitudinal beam; 6.double packed load-bearing I-section cross beam, 7. intelligent hydraulic system; 8. monitoring points; 9. steel column; 10. flanges; 11. round steel stirrups; 12. transverse connecting cross braces; 13. I-section wall fasteners; 14. steel fence; 15. beam body of the cast-in-place method on side span. Specific embodiments
[0014] The present utility model is used to solve the technical problems. In order to clarify the advantageous effects and technical planning, the utility model is described in more detail below in conjunction with the attached figures and embodiments. It should be understood that the specific embodiments described here serve only to explain the utility model and do not limit the utility model. Embodiment 1
[0015] As in Fig. As shown, the present application discloses a cast-in-place concrete support system with prefabricated continuous beams on the side span. It includes an I-beam distribution beam 4, a plurality of I-beam longitudinal beams 5 are arranged in the following longitudinal arrangement below the I-beam distribution beam 4, a steel fence 14 is mounted on top of the I-beam distribution beam 4, and a wooden formwork is erected. The wooden formwork is used on-site for concrete pouring of the beam body 15 on the side span, a steel column 9 is connected to the bottom of the I-beam longitudinal beam 5. It is characterized in that a positioning mechanism is attached to one end of the I-beam distribution beam 4, which extends to the top of the bridge pier, and there is a stable structure between the adjacent two steel tubes 9.The positioning mechanism includes a double-packed I-beam cross member 3 clamped to the side surfaces above and below the I-beam distribution beam 4, and an I-beam leveling beam 2 mounted on the end of the double-packed I-beam cross member 3. Between both ends of the I-beam leveling beam 2 and the double-packed I-beam cross member 3, the vertically attached hanging bar made of fine-rolled reinforcing steel 1 is attached. It is arranged such that the vertically attached hanging bar made of fine-rolled reinforcing steel 1 passes through the I-beam distribution beam 4, and the vertically attached hanging bar made of fine-rolled reinforcing steel 1 is used to fix one end of the I-beam distribution beam 4 near the bridge pier to the bridge pier.
[0016] The horizontal cross connection comprises a round steel bracket 11 wrapped on the steel column 9, and a rubber gasket is further wrapped between the round steel bracket 11 and the steel column 9, and two adjacent round steel brackets 11 are provided with flat cross-connecting cross braces 12, which is easy for assembly and recycling.
[0017] The positioning mechanism includes a double-packed I-section cross member 3 clamped to the upper and lower sides of the I-section distribution beam 4, and an I-section leveling beam 2 mounted on the end of the double-packed I-section cross member 3. It is arranged so that the vertically mounted hanging rod made of fine-rolled reinforcing steel 1 passes through the two ends of the I-section leveling beam 2 and the double-packed I-section cross member 3, so that the I-section distribution beam 4 is fixed to the bridge pier; so that the I-section distribution beam 4 remains stable.
[0018] As in Fig. 3 shows that the round steel stirrup 11 is made of steel plates, or rather, two round steel plates, corresponding to the size of the steel column 9. The round steel plates are provided with stiffening ribs, and the two round steel plates are additionally connected to each other by high-strength bolts. The round steel stirrup 11 near the bridge piers is connected to I-beam wall fasteners 13, which are fixed to the side surface of the bridge pier. The round steel stirrup 11 is installed on the short steel column in advance, and then the transverse connecting cross brace 12 is installed between the stiffening ribs of two adjacent round steel plates. This work can be performed on the ground, thus reducing the frequency of high-altitude work. This reduces the risk.
[0019] As in Fig.shown that an intelligent hydraulic system 7 is equipped on the top of the steel column 9. The bottom of the I-beam longitudinal beam 5 is further provided with a plurality of transverse double-spliced I-beam cross members 6, and the double-spliced I-beam cross members 6 are mounted on the top of the intelligent hydraulic system 7, and the number of double-spliced I-beam cross members 6 corresponds to the number of transverse rows of the steel pipe 9. On the top of the steel column 9, a monitoring point 8 for detecting the extraordinary stress of the steel column 9 is also provided. The monitoring point 8 can monitor the stress situations of the steel column 9 in real time, so that countermeasures can be taken to ensure the safety of the construction work.
[0020] The standard components used in the utility model can be purchased on the market, the specially shaped parts can be pre-ordered according to the instruction manuals and diagrams, and the specific connection methods of each component all use mature techniques such as screwing, riveting, welding and other conventional means, machines, parts and equipment of the current state of the art models, and the circuit connection is also roughly in line with the common circuit method of the current state of the art, which is not described in detail here.
[0021] The contents not described in detail in this operating manual are also known to experts.
[0022] The design principle of the present application for a support system for in-situ concrete methods with prefabricated continuous beams on side spans is as follows: First, a horizontal flat cross connection is arranged, and the round steel bracket 11 mounted on the short steel column is considered as part of the horizontal flat cross connection. A rubber gasket is wrapped between the round steel bracket 11 and the steel column 9 to increase stability. To facilitate assembly and recycling, cross-connecting cross braces 12 are installed between two adjacent round steel brackets 11. Then, several short steel tubes are assembled into a steel column 9 by flange plates and high-strength bolts on the short steel tubes.
[0023] The I-beam distribution beam 4 and a plurality of I-beam longitudinal beams 5 are provided, the I-beam longitudinal beams 5 are arranged in longitudinal rows below the I-beam distribution beam 4, a positioning mechanism is arranged at one end of the I-beam distribution beam 4 which extends above the bridge piers and, and the positioning mechanism comprises a double-packed I-beam cross beam 3 which is clamped to the side surfaces above and below the I-beam distribution beam 4, and an I-beam compensation beam 2 which is attached to the end of the double-packed I-beam cross beam 3, a vertically attached hanging rod made of fine-rolled reinforcing steel 1 is attached for suspension between the ends of the I-beam longitudinal beam 2 and the double-packed I-beam cross beam 3, and the vertically attached hanging rod made of fine-rolled reinforcing steel 1 is passed through the I-profile distribution beam 4,One end of the I-beam distribution girder 4 is attached to the bridge pier near the bridge pier. An intelligent hydraulic system 7 is mounted on top of the steel column 9 to improve the stability of the entire structure and maintain balance. The underside of the I-beam longitudinal girder 5 is also provided with a plurality of transverse, double-spliced I-beam cross members 6, which are mounted on the intelligent hydraulic system 7. The number of double-spliced I-beam cross members 6 corresponds to the number of transverse rows of the steel column 9. Once the work is completed, the steel fence 14 can be installed and the wooden formwork erected on top of the I-beam distribution girder 4. The girder body 15 is then cast in place on the side span.
[0024] In addition, on the top of the steel column 9, there is still a monitoring point 8 for detecting the extraordinary stress of the steel column 9, the monitoring point 8 is able to monitor the stress situations of the steel column 9 in real time, so that the countermeasures can be taken to ensure the safety of the construction work.
[0025] This cast-in-place concrete support system with precast continuous beams on side spans is reusable, making it easy to assemble and recycle. Each component, such as the I-beam distribution beam (4), I-beam longitudinal beam (5), steel column (9), timber formwork, etc., can be disassembled and assembled as needed, saving labor costs and time.
[0026] The basic principle, main features, and advantages of the utility model are displayed and described above. Those skilled in the art should understand that the utility model is not limited to the above-mentioned embodiments, and the examples described in the above-mentioned embodiments and descriptions are only preferred examples of the utility model and are not intended to limit the utility model. And there will be modifications and improvements; various modifications and improvements to the utility model, without departing from the spirit and scope of the utility model, fall within the scope of the utility model. The scope of the utility model is defined by the appended claims and their equivalents.
Claims
[1] A support system for cast-in-place concrete methods with prefabricated continuous beams on the side span, comprising an I-profile distribution beam (4), wherein a plurality of I-profile longitudinal beams (5) are arranged in the following longitudinal arrangement below the I-profile distribution beam (4), wherein a steel fence (14) is mounted on top of the I-profile distribution beam (4), and wherein a wooden formwork is erected, wherein the wooden formwork is used on-site for concrete pouring of the beam body (15) on the side span, wherein a steel column (9) is connected to the underside of the I-profile longitudinal beam (5), wherein a positioning mechanism is attached to one end of the I-profile distribution beam (4) extending to the top of the bridge pier, and wherein a stable structure is provided between the two adjacent steel tubes (9), wherein the positioning mechanism comprises a double-packed I-profile cross member (3) clamped to the upper and lower sides of the I-profile distribution beam (4), and an I-profile leveling beam (2) mounted on the end of the double-packed I-profile cross member (3), wherein the vertically mounted hanging bar made of fine-rolled reinforcing steel (1) is mounted between both ends of the I-profile leveling beam (2) and the double-packed I-profile cross member (3), wherein the vertically mounted hanging bar made of fine-rolled reinforcing steel (1) passes through the I-profile distribution beam (4), and the vertically mounted hanging bar made of fine-rolled reinforcing steel (1) is used to attach one end of the I-profile distribution beam (4) to the bridge pier near the bridge pier; wherein the horizontal cross connection comprises a round steel bracket (11) which is sheathed on the steel column (9), wherein a rubber seal is further sheathed between the round steel bracket (11) and the steel column (9), and wherein two adjacent round steel brackets (11) are provided with flat transverse connecting cross braces (12) which are easy for assembly and recycling. [2] The support system according to claim 1, characterized by that the round steel stirrup (11) is made of steel sheets or two round steel sheets corresponding to the size of the steel column (9), wherein the round steel sheets are provided with stiffening ribs, and wherein the two round steel sheets are additionally connected to one another by high-strength screws. Support system, wherein the round steel stirrup (11) is connected near the bridge piers to I-profile wall fastening elements (13) which are fastened to the side surface of the bridge pier. [3] The support system according to claim 1, characterized by that the steel column (9) consists of several short steel tubes, the upper and lower steel tubes being connected by a flange plate (10). [4] The support system according to claim 1, characterized by that an intelligent hydraulic system (7) is equipped on the top side of the steel column (9), wherein the underside of the I-profile longitudinal member (5) is further provided with a plurality of transverse, double-spliced I-profile cross members (6) and the double-spliced I-profile cross member (6) is attached to the top side of the intelligent hydraulic system (7), wherein the number of double-spliced I-profile cross members (6) corresponds to the number of transverse rows of the steel tube (9). [5] The support system according to claim 1, characterized by that a monitoring point (8) is still present on the top side of the steel tube (9) to record the extraordinary stress on the steel tube (9).