Cap beam construction system and method

Abstract

The present invention belongs to the field of bridge engineering, and in particular, relates to a cap beam construction system and method, wherein the system includes a pier column template for constructing pier columns, a construction platform is provided on the outside of the pier column template, and the pier column template includes a movable template and a top template, both of which are detachably connected to the pier column template, the movable template is located on the periphery of the pier column template and above the construction platform, and the top template is located on the top of the pier column; the system also includes at least two load-bearing parts and a cap beam template, the load-bearing part includes a load-bearing rod, one end of the load-bearing rod is inserted into the pier column, and the other end extends from the movable template, the cap beam template is connected to the top template, a support frame is provided above the load-bearing rod, and the support frame is located at the bottom of the cap beam template. The present invention can solve the problems of long time consumption, slow construction efficiency and high safety risks in the existing cap beam construction technology when installing the cap beam support frame and template through a tower crane.

Description

Technical Field

[0001] The invention belongs to the field of bridge engineering, and in particular relates to a cap beam construction system and method. Background Art

[0002] A cap beam refers to a crossbeam installed on top of a column-pile pier to support, distribute and transfer the load of the superstructure. Its main function is to support the superstructure of the bridge and transfer all loads to the lower structure.

[0003] The construction methods of high pier cap beams used in the prior art include the cross-steel rod method, the embedded steel plate method and the floor bracket method. The cross-steel rod method is to embed a reserved hole in the pier column in advance, insert a steel section or a high-strength rod into the hole and lock it, and the steel section or the high-strength rod supports the weight of the bracket, the formwork and the entire cap beam; the embedded steel plate method is to embed a steel plate in the pier column, weld a steel support corbel on the embedded steel plate after removing the formwork, set up a formwork bracket on the corbel to cast the cap beam, and the weight of the bracket, the formwork and the entire cap beam is transferred to the pier column through the corbel bracket. The floor bracket method adopts the bracket method for construction, and the bracket can be set up with a universal rod or a steel pipe bracket. The weight of the cap beam, formwork, etc. is borne by the bracket and directly transmitted to the ground; for the above three types of high pier cap beam construction methods, the existing technology usually carries out load-bearing structure Improvements are made to change the problem of difficult disassembly and enhance the load-bearing capacity. At the same time, during the installation process, the pier installation templates need to be removed before the support frame and installation templates of the cap beam can be constructed. This is because there is a certain time gap between the existing construction of bridge piers and the construction of cap beams. Usually, the construction of the cap beam will start 2 weeks after the pier construction is completed. During this time gap, the existing construction personnel are affected by time errors, and the inertial thinking will regard the pier construction and the cap beam construction as two different promotion plans. Therefore, after the pier construction is completed, the relevant templates or structures of the pier construction will be removed before the cap beam construction is carried out. At this time, under the influence of technical barriers, in order to improve the construction of the cap beam, improvements will be made to the relevant structures of the cap beam.

[0004] The area where the cap beam has been improved the most is the improvement of the load-bearing structure. From the initial ground-mounted bracket method to the cross-steel rod method to the embedded steel plate method, all of them are improvements on the load-bearing structure. During the construction process, the construction workers are moved to the work sites of the cross-steel rod method and the embedded steel plate method through high-altitude work equipment such as tower cranes to install the corresponding support frames and lay the formwork. Since the bearing space formed by the tower crane for carrying the construction workers and facilitating the construction workers' high-altitude work is relatively small, the tower crane needs to adjust the construction position many times during the construction process, which results in a long time and low construction efficiency. In addition, for high piers, working in the bearing space formed by the tower crane also poses a high safety risk to the construction workers. Summary of the invention

[0005] The technical problem solved by the present invention is to provide a cap beam construction system and method to solve the problems of long time consumption, low construction efficiency and high safety risks in the existing cap beam construction technology when installing the cap beam support frame and the template through a tower crane.

[0006] The basic scheme provided by the present invention is: a cap beam construction system, comprising a pier column template for constructing pier columns, a construction platform 1 being arranged outside the pier column template, characterized in that the pier column template comprises a movable template and a top template, the movable template and the top template are both detachably connected to the pier column template, the movable template is located on the periphery of the pier column template and above the construction platform 1, and the top template is located on the top of the pier column;

[0007] It also includes at least two load-bearing parts and a cap beam formwork, the load-bearing parts include load-bearing rods, threading holes are preset in the pier column at the movable formwork, the load-bearing rods pass through the threading holes, the cap beam formwork is connected to the top formwork, a support frame is provided above the load-bearing parts, and the support frame is located at the bottom of the cap beam formwork.

[0008] The principle and advantage of the present invention are as follows: in the prior art, after the pier construction is completed and the design of the pier reaches the strength, the relevant formwork and mechanism of the pier construction are removed, and then the construction of the cap beam is carried out. There needs to be a period of time between the pier construction and the cap beam construction. After this time, the construction personnel will be affected by time errors, and the inertial thinking will regard the pier construction and the cap beam construction as two different promotion plans. Therefore, after the pier construction is completed, the relevant formwork or structure of the pier construction will be removed, and then the construction of the cap beam will be carried out. At this time, under the influence of technical barriers, in order to improve the construction of the cap beam, the relevant structure of the cap beam will be improved, so it is basically not thought of combining the two plans for complementary effects in mechanism structure and installation.

[0009] In addition, in order to facilitate the construction of the cap beam in the prior art, improvements are usually made to the structure of the cap beam, among which the most frequently improved is the improvement of the load-bearing structure. From the initial ground bracket method to the cross steel rod method to the embedded steel plate method, they all reflect the differences in the construction methods and structural structures of the load-bearing structure. Therefore, construction workers will also form misunderstandings here, and will only think about how to continue to improve the load-bearing structure or other structures to enhance the convenience of the cap beam construction, but forget that they can also improve the external structure from the aspects of enhancing the convenience of personnel operation and reducing safety risks.

[0010] To this end, after the construction of the high pier is completed, the present invention retains the pier formwork after the construction of the top of the high pier, and sets a detachable movable formwork on the pier formwork. After the movable formwork is disassembled, the construction platform on the pier formwork is used to install the load-bearing member on the pier as the load-bearing mechanism of the cap beam formwork. In the process of building the cap beam formwork, the top formwork on the top of the pier formwork is used as a part of the bottom formwork of the cap beam formwork, and a complete cap beam construction system is built in conjunction with the cap beam formwork. In this way, the construction personnel do not need to use the tower crane to maintain the installation of the load-bearing mechanism and the cap beam formwork on the pier, but can directly use the construction platform to carry out the installation, and there is no need for the tower crane to adjust its position multiple times, thereby reducing the construction time, improving efficiency and reducing safety risks.

[0011] Furthermore, the load-bearing member includes a load-bearing block and a connecting member 1. The load-bearing block is against the movable formwork of the pier column and is connected to the protruding part of the load-bearing rod through the connecting member 1. The support frame is located above the load-bearing block.

[0012] Beneficial effect: The load-bearing block can be used as a supporting platform and a fixing platform for the support frame and the load-bearing rod.

[0013] Furthermore, the cap beam formwork includes a cap beam bottom formwork, a cap beam side formwork and a cap beam end formwork. The two ends of the cap beam bottom formwork are connected to the top formwork on the pier column formwork, the bottom of the cap beam side formwork is connected to the cap beam bottom formwork and the top formwork, and the cap beam end formwork is respectively located at the two ends of the cap beam bottom formwork and connected to the cap beam bottom formwork and the top formwork.

[0014] Beneficial effects: The cap beam formwork is divided into multiple modular formworks, which are assembled and connected with the top formwork through the cap beam bottom formwork, cap beam side formwork and cap beam end formwork, making the installation process modular and simplified, and a certain formwork can be directly disassembled according to the shape of the cap beam. Compared with the existing integrated cap beam formwork, it has the advantages of strong scalability and simple replacement.

[0015] Furthermore, sealing members are provided at the connections between the cap beam bottom formwork, the cap beam side formwork, the cap beam end formwork and the top formwork.

[0016] Beneficial effects: Sealing parts are arranged at the connection points of the cap beam bottom formwork, cap beam side formwork, cap beam end formwork and top formwork to avoid leakage of concrete when pouring concrete and ensure the sealing of the formwork.

[0017] Furthermore, a second construction platform is provided on the outside of the cap beam bottom formwork, and the second construction platform includes a platform bracket, a main beam, a cross beam, a panel and a guardrail. The cross beam is connected to the cap beam bottom formwork, one end of the platform bracket is connected to the load-bearing block through a second connector, the main beam is connected to the platform bracket and the cross beam, the other end of the platform bracket is connected to the bottom of the cross beam, the other end of the cross beam is connected to the guardrail, and the panel is laid on the cross beam.

[0018] Beneficial effects: A second construction platform is set at the installation site of the cap beam formwork to facilitate construction workers to install the cap beam formwork and conduct surveys of relevant on-site conditions.

[0019] A cap beam construction method, comprising:

[0020] S1: retain the pier column formwork on the pier column and the construction platform 1 outside the pier column formwork, set a movable formwork above the construction platform 1, and set a top formwork on the top of the pier column formwork;

[0021] S2: Remove the movable formwork, set the load-bearing rods in the load-bearing parts at the threading holes of the piers at the movable formwork, build the cap beam formwork, and connect the cap beam formwork to the load-bearing parts through the support frame;

[0022] S3: pouring cap beam concrete on the cap beam formwork;

[0023] S4: After the cap beam concrete reaches the design strength, remove the pier column formwork, cap beam formwork, load-bearing parts and support frame, and treat the pier column surface.

[0024] Furthermore, the load-bearing member is arranged at the position where the pier is located at the movable formwork in S2 specifically as follows:

[0025] S2-1: The load-bearing block is placed against the movable formwork of the pier column and connected to the extended part of the load-bearing rod through a connecting piece;

[0026] S2-2: Install the bottom of the support frame above the load-bearing block and connect the top to the bottom formwork of the cap beam.

[0027] Furthermore, the movable template in S1 is 1.2m away from the top template.

[0028] Furthermore, the construction of the cap beam formwork in S2 is specifically as follows: the cap beam formwork includes a cap beam bottom formwork, a cap beam side formwork and a cap beam end formwork, the two ends of the cap beam bottom formwork are connected to the top formwork on the pier formwork, the bottom of the cap beam side formwork is connected to the cap beam bottom formwork and the top formwork, and the cap beam end formwork is respectively located at the two ends of the cap beam bottom formwork and connected to the cap beam bottom formwork and the top formwork.

[0029] Furthermore, sealing members are provided at the connections between the cap beam bottom formwork, the cap beam side formwork, the cap beam end formwork and the top formwork. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 This is a schematic diagram of the lateral structure of the first embodiment of the present invention;

[0031] Figure 2 This is a schematic diagram of the main structure of Embodiment 1 of the present invention;

[0032] Figure 3 This is a schematic diagram of the main direction of the pier column formwork according to the first embodiment of the present invention;

[0033] Figure 4 This is a schematic diagram of the structure of a load-bearing member according to Embodiment 1 of the present invention;

[0034] Figure 5 This is a flowchart of the first embodiment of the present invention. DETAILED DESCRIPTION

[0035] The following is further described in detail through specific implementation methods:

[0036] The marks in the drawings of the specification include: pier 1, pier formwork 2, movable formwork 201, top formwork 202, load-bearing part 3, load-bearing rod 301, load-bearing block 302, connecting part 1 303, cap beam formwork 4, cap beam bottom formwork 401, cap beam side formwork 402, cap beam end formwork 403, support frame 5, platform bracket 6, cross beam 7, panel 8, guardrail 9, main beam 10.

[0037] The cap beam is a crossbeam set on the top of the column-pile bridge pier. Its main function is to support the superstructure of the bridge and transfer all the loads to the lower structure. The current construction methods of high pier cap beams include the cross-steel rod method, the embedded steel plate method and the ground bracket method. The cross-steel rod method is to embed a reserved hole in the pier column in advance, insert a steel section or a high-strength rod into the hole and lock it. The steel section or high-strength rod supports the weight of the bracket, formwork and the entire cap beam; the embedded steel plate method is to embed a steel plate in the pier column, and weld steel on the embedded steel plate after removing the formwork. Support the corbel, set up formwork brackets on the corbels to cast the cap beam, the weight of the bracket, formwork and the entire cap beam is transferred to the pier column through the corbel bracket, the ground bracket method adopts the bracket method for construction, the bracket can be set up with universal rods or steel pipe brackets, the weight of the cap beam, formwork, etc. are all borne by the bracket and directly transferred to the ground; in addition, it also includes the hoop method. Compared with the above three methods, the hoop method has a simple fixing method, does not require pre-buried steel plates or threading holes, and will not damage the surface of the pier column. Therefore, it is currently commonly used in the construction of high pier column cap beams. Work; however, no matter it is the cross-steel rod method, the embedded steel plate method, the floor bracket method or the clamp method, it is necessary to remove the template of the construction pier column, and then the construction personnel use the tower crane and other aerial work equipment to thread the high-strength rod or embed the steel plate or install the clamp. This is because, in the prior art, after the pier column construction is completed and the design of the pier column reaches the strength, the relevant templates and mechanisms of the pier column construction are removed, and then the construction of the cap beam is carried out. There needs to be a period of time between the pier column construction and the cap beam construction. After this time, the construction personnel will be affected by time errors, and the inertial thinking will regard the pier column construction and the cap beam construction as two different promotion plans. Therefore, after the pier column construction is completed, the relevant templates or structures of the pier column construction are removed, and then the cap beam construction is carried out; at this time, under the influence of technical barriers, in order to improve the construction of the cap beam, the relevant structures of the cap beam will be improved, so it is basically not thought of combining the two plans for complementary effects in the installation of the mechanism.

[0038] At the same time, due to the technological issues of cap beam construction and pier construction, existing ones will pay less attention to the combination and complementarity of pier construction scheme and cap beam construction scheme.

[0039] For this reason, in order to facilitate the construction of the cap beam in the prior art, improvements are usually made to the structure of the cap beam, among which the most frequently improved is the improvement of the load-bearing structure. From the initial floor-standing bracket method to the horizontal steel rod method to the embedded steel plate method, all of them can reflect the differences in the construction methods and structural structures of the load-bearing structure. Therefore, construction workers will also form misunderstandings here, and will only think about how to continue to improve the load-bearing structure or other structures to enhance the convenience of the cap beam construction, but forget that they can also improve the external structure from the aspects of enhancing the convenience of personnel operation and reducing safety risks.

[0040] Since the bearing space formed by the tower crane for carrying construction workers and facilitating their high-altitude operations is relatively small, the tower crane needs to adjust the construction position multiple times during the construction process, which results in a long time consumption and low construction efficiency. In addition, for high piers, working within the bearing space formed by the tower crane also poses a high safety risk to construction workers.

[0041] Therefore, in order to solve the above problems, the present application proposes a cap beam construction system, the details of which are as follows:

[0042] The embodiment is basically as follows Figure 1 , Figure 2 and Figure 3 As shown: a cap beam construction system, including a pier column formwork 2 and a cap beam formwork 4 for constructing a pier column 1, the cap beam formwork 4 includes a cap beam bottom formwork 401, a cap beam side formwork 402 and a cap beam end formwork 403, a construction platform 1 is provided on the outside of the pier column formwork 2, and a construction platform 2 is provided on the outside of the cap beam bottom formwork 401.

[0043] The pier column formwork 2 includes a movable formwork 201 and a top formwork 202, both of which are detachably connected to the pier column formwork 2. The movable formwork 201 is located on the side of the pier column formwork 2 and above the construction platform 1, and the top formwork 202 is located on the top of the pier 1. In this embodiment, the movable formwork 201 is connected to the pier column formwork 2 by bolts, so that the movable formwork 201 can be removed from the pier column formwork 2. When concrete is poured in the pier column formwork 2 and reaches the designed strength, the movable formwork 201 on the pier column formwork 2 is removed, and the other formworks of the pier column formwork 2 are retained. At the same time, the top formwork 202 is installed on the top of the pier 1, and the top formwork 202 and the pier column formwork 2 are fixed by bolts. The fixed top formwork 202 can be used as a part of the bottom formwork for the cap beam construction.

[0044] In addition, when pouring concrete, the pier column formwork 2 has a pre-buried hole sleeve at the height of the movable formwork 201. In this embodiment, the height between the movable formwork 201 and the top formwork 202 is 1.2 m. The pre-buried hole sleeve is preferably a PVC pipe with a diameter of 100 mm.

[0045] like Figure 4 As shown, in order to ensure the construction of the cap beam, the present application also includes at least two load-bearing parts 3 and a cap beam formwork 4. The load-bearing parts 3 in this embodiment include a load-bearing rod 301, a load-bearing block 302 and a connecting member 303, wherein a threading hole is preset at the movable formwork 201 in the pier 1, the load-bearing rod 301 passes through the threading hole, the load-bearing block 302 rests on the movable formwork 201 of the pier 1, and is connected to the protruding part of the load-bearing rod 301 through a connecting member 303, and a support frame 5 is provided above the load-bearing block 302, and the support frame 5 is located at the bottom of the cap beam formwork 4.

[0046] In the present embodiment, two load-bearing rods 301 are provided, and four load-bearing blocks 302 are provided. Similarly, four movable formworks 201 are also provided on the pier formwork 2. After the concrete pouring in the pier formwork 2 is completed, the movable formwork 201 is removed to expose the embedded hole-forming sleeve in the pier 1, and then the load-bearing rods 301 are respectively installed in the hole-forming sleeve. In the present embodiment, the protruding end of the load-bearing rod 301 is provided with a thread, the load-bearing block 302 is provided with an internal thread, and the connecting piece 303 is a nut. The movable formwork 201 is "T" shaped. The horizontal part of the movable formwork 201 is used to install the load-bearing block 302, and the vertical part is used to provide an installation space for the support frame 5. The support frame 5 is welded by overlapping the I-shaped steel above the load-bearing block 302 and below the bottom formwork 401 of the cap beam, so as to facilitate the transfer of the load of the cap beam formwork 4 to the load-bearing component 3.

[0047] In this embodiment, the construction platform one and the construction platform two have the same structure, specifically: they include a platform bracket 6, a main beam 10, a cross beam 7, a panel 8 and a guardrail 9. The cross beam 7 of the construction platform one and one end of the platform bracket 6 are pin-connected to the pier column formwork 2, the main beam 10 connects the platform bracket 6 and the cross beam 7, the other end of the platform bracket 6 is connected to the bottom of the cross beam 7, the other end of the cross beam 7 is connected to the guardrail 9, and the panel 8 is laid on the cross beam 7, so as to build a construction platform for construction workers to work; the cross beam 7 in the construction platform two is connected to the cap beam bottom formwork 401, one end of the platform bracket 6 is connected to the load-bearing block 302 through the connecting member 2, the main beam 10 connects the platform bracket 6 and the cross beam 7, the other end of the platform bracket 6 is connected to the bottom of the cross beam 7, the other end of the cross beam 7 is connected to the guardrail 9, and the panel 8 is laid on the cross beam 7, wherein the connecting member 2 in this embodiment is a shaft pin.

[0048] In the cap beam formwork 4, the two ends of the cap beam bottom formwork 401 are connected to the top formwork 202 on the pier column formwork 2, the bottom of the cap beam side formwork 402 is connected to the cap beam bottom formwork 401 and the top formwork 202, and the cap beam end formwork 403 is respectively located at the two ends of the cap beam bottom formwork 401 and connected to the cap beam bottom formwork 401 and the top formwork 202. In this embodiment, two high piers 1 are provided, and the top formwork 202 is respectively located on the top of the two high piers 1 and connected to the top of the pier column formwork 2. The thickness of the cap beam formwork 4 is 6 mm. Before installing the cap beam formwork 4, a release agent is applied to the plate surface. The design process of the cap beam bottom formwork 401 and the top formwork 202 is the same, specifically: an I-beam is used as a crossbeam 7 at the lower part of the cap beam bottom formwork 401 and the top formwork 202 to support the cap beam bottom formwork 401 and the top formwork 202, and a small steel plate is used on the top of the crossbeam 7 to adjust the elevation of the cap beam bottom formwork 401 and the top formwork 202. The cap beam bottom formwork 401 and the top formwork 202 are connected to each other to constitute the entire bottom formwork for the cap beam construction.

[0049] In this embodiment, the cap beam side formwork 402 is assembled using a large flat steel formwork with a thickness of 6 mm. When the cap beam side formwork 402 is installed, an installation portion is set at the bottom of the cap beam side formwork 402, and the installation portion covers the cap beam bottom formwork 401 and the top formwork 202, so as to install the cap beam side formwork 402.

[0050] The cap beam end formwork 403 and the cap beam side formwork 402 are fixed by means of bolts and wooden wedges. After the cap beam bottom formwork 401, the cap beam side formwork 402, the cap beam end formwork 403 and the top formwork 202 are connected and fixed, a seal is set at the connection to prevent leakage of slurry. In this embodiment, the seal is a double-sided adhesive sponge strip.

[0051] like Figure 5 As shown, in another embodiment of this embodiment, a cap beam construction method is also included, including:

[0052] S1: The pier column formwork 2 on the pier column 1 and the construction platform 1 outside the pier column formwork 2 are retained, a movable formwork 201 is set above the construction platform 1, and a top formwork 202 is set on the top of the pier column formwork 2; the movable formwork 201 in S1 is 1.2m away from the top formwork 202.

[0053] S2: Remove the movable template 201, set the load-bearing rod 301 in the load-bearing member 3 at the threading hole of the pier 1 located at the movable template 201, and build the cap beam template 4, and connect the cap beam template 4 to the load-bearing member 3 through the support frame 5; the specific method of setting the load-bearing member 3 at the pier 1 located at the movable template 201 in S2 is:

[0054] S2-1: The load-bearing block 302 is placed against the movable template 201 of the pier 1, and connected to the extended part of the load-bearing rod 301 through a connecting piece 1 303;

[0055] S2-2: Install the bottom of the support frame 5 above the load-bearing block 302 and connect the top to the cap beam bottom formwork 401.

[0056] The construction of the cap beam formwork 4 in S2 is specifically as follows: the cap beam formwork 4 includes a cap beam bottom formwork 401, a cap beam side formwork 402 and a cap beam end formwork 403, the two ends of the cap beam bottom formwork 401 are connected to the top formwork 202 on the pier column formwork 2, the bottom of the cap beam side formwork 402 is connected to the cap beam bottom formwork 401 and the top formwork 202, the cap beam end formwork 403 is respectively located at the two ends of the cap beam bottom formwork 401 and connected to the cap beam bottom formwork 401 and the top formwork 202; the connection between the cap beam bottom formwork 401, the cap beam side formwork 402, the cap beam end formwork 403 and the top formwork 202 is provided with sealing components.

[0057] S3: pouring cap beam concrete on the cap beam formwork 4.

[0058] S4: After the cap beam concrete reaches the design strength, the pier column formwork 2, cap beam formwork 4, load-bearing member 3 and support frame 5 are removed, and the surface of the pier column 1 is processed.

[0059] Embodiment 2:

[0060] In Example 2, the size of the platform support is 1-1.2m, the size of the beam is 1.2-1.6m, the size of the main beam is 0.5-0.8m, the size of the guardrail is 1-1.4m, the inclination of the platform support relative to the beam is 40-70°, and the distance between the movable formwork and the top formwork is 1.2m.

[0061] In the prior art, the pier construction plan and the cap beam construction plan are two different construction processes. Therefore, it is necessary to dismantle the construction template and other construction mechanisms after the pier construction is completed to avoid blocking the next cap beam construction process. In actual construction scenarios, the construction sequence is very important. In order to save time, after the pier construction reaches the design plan, the pier is dismantled to provide operating space for the next process. Therefore, there is no suggestion of combining the pier construction and the cap beam construction of the current bridge in the construction plan.

[0062] To this end, the present application retains the construction platform 1 in the pier construction plan, and sets it as a specific space according to the relevant size range of the construction platform 1. A top formwork is set on the top of the pier formwork as part of the bottom formwork in the cap beam construction plan, and the retained construction platform 1 is used as the load-bearing structure working space in the cap beam construction plan. The range of the working space is as shown in the above-mentioned size range, and will not affect the progress of the cap beam construction. On the contrary, it has higher safety performance for the existing use of tower cranes as working space. At the same time, for the process of the pier construction plan, the construction time (including pier formwork installation-pouring pier concrete-installation of cap beam load-bearing structure-removal of pier formwork) is increased relative to the original pier construction plan. In this embodiment, the increased time is approximately It only takes one tenth of the construction time. However, during the construction of the cap beam formwork, the construction time of the cap beam load-bearing structure and the construction time of the cap beam formwork support frame are included in the pier construction process. The tower crane does not need to repeatedly adjust the position for the construction personnel, and is only used for the transportation of cap beam construction materials. Therefore, the installation of the load-bearing structure and the installation of the support frame are reduced in the cap beam construction plan, which greatly shortens the time compared with the original cap beam construction plan. In this embodiment, it is shortened by about one fifth. Therefore, in terms of time cost, the increased pier construction time accounts for a small proportion of the entire construction plan, and the impact it brings is also small, while the shortened cap beam construction time accounts for a large proportion of the entire construction plan, so the benefits and efficiency reflected are also higher, which improves the expected effect brought by the cap beam construction plan.

[0063] The above are only embodiments of the present invention. Common knowledge such as the well-known specific structures and characteristics in the scheme are not described in detail here. Ordinary technicians in the relevant field are aware of all the common technical knowledge in the technical field to which the invention belongs before the application date or priority date, can obtain all the existing technologies in the field, and have the ability to apply conventional experimental means before that date. Ordinary technicians in the relevant field can improve and implement this scheme based on their own abilities under the inspiration given by this application. Some typical well-known structures or well-known methods should not become obstacles for ordinary technicians in the relevant field to implement this application. It should be pointed out that for technicians in this field, several variations and improvements can be made without departing from the structure of the present invention, and these should also be regarded as the scope of protection of the present invention, and these will not

[0064] The scope of protection required by this application shall be based on the content of its claims, and the specific implementation methods and other records in the specification can be used to interpret the content of the claims.

Claims

1. A cap beam construction system, comprising a pier column template for constructing a pier column, wherein a construction platform 1 is provided outside the pier column template, and wherein: The pier column template includes a movable template and a top template, both of which are detachably connected to the pier column template, the movable template is located on the periphery of the pier column template and above the construction platform, and the top template is located on the top of the pier column; a hole-forming sleeve is pre-buried at the height of the movable template, and the movable template is in an inverted T shape; It also includes at least two load-bearing members and a cap beam template, wherein the load-bearing member includes a load-bearing rod, a threading hole is preset in the pier column at the movable template, the load-bearing rod passes through the threading hole, the cap beam template is connected to the top template, a support frame is provided above the load-bearing member, and the support frame is located at the bottom of the cap beam template; the load-bearing member also includes a load-bearing block and a connecting member 1, after the movable template is removed, the load-bearing block abuts against the movable template of the pier column, and is connected to the extended part of the load-bearing rod through the connecting member 1, and the support frame is located above the load-bearing block; The cap beam formwork includes a cap beam bottom formwork, a cap beam side formwork and a cap beam end formwork. The two ends of the cap beam bottom formwork are connected to the top formwork on the pier column formwork, the bottom of the cap beam side formwork is connected to the cap beam bottom formwork and the top formwork, and the cap beam end formwork is respectively located at the two ends of the cap beam bottom formwork and connected to the cap beam bottom formwork and the top formwork.

2. A cap beam construction system according to claim 1, characterized in that: The connections between the cap beam bottom formwork, the cap beam side formwork, the cap beam end formwork and the top formwork are all provided with sealing members.

3. A cap beam construction system according to claim 1, characterized in that: A second construction platform is provided on the outside of the cap beam bottom formwork, and the second construction platform includes a platform bracket, a main beam, a cross beam, a panel and a guardrail. The cross beam is connected to the cap beam bottom formwork, one end of the platform bracket is connected to the load-bearing block through a second connector, the main beam is connected to the platform bracket and the cross beam, the other end of the platform bracket is connected to the bottom of the cross beam, the other end of the cross beam is connected to the guardrail, and the panel is laid on the cross beam.

4. A cap beam construction method, characterized in that: include: S1: retain the pier column formwork on the pier column and the construction platform 1 outside the pier column formwork, set a movable formwork above the construction platform 1, and set a top formwork on the top of the pier column formwork; S2: Remove the movable formwork, set the load-bearing rods in the load-bearing parts at the threading holes of the piers at the movable formwork, build the cap beam formwork, and connect the cap beam formwork to the load-bearing parts through the support frame; S3: pouring cap beam concrete on the cap beam formwork; S4: After the cap beam concrete reaches the designed strength, the pier column formwork, cap beam formwork, load-bearing parts and support frame are removed, and the pier column surface is treated; The specific method of arranging the load-bearing member at the position where the pier is located on the movable formwork in S2 is: S2-1: After removing the movable formwork, place the load-bearing block against the movable formwork of the pier column and connect it to the extended part of the load-bearing rod through a connector; S2-2: Install the bottom of the support frame above the load-bearing block, and connect the top to the bottom formwork of the cap beam; The construction of the cap beam formwork in S2 is specifically as follows: the cap beam formwork includes a cap beam bottom formwork, a cap beam side formwork and a cap beam end formwork, the two ends of the cap beam bottom formwork are connected to the top formwork on the pier formwork, the bottom of the cap beam side formwork is connected to the cap beam bottom formwork and the top formwork, and the cap beam end formwork is respectively located at the two ends of the cap beam bottom formwork and connected to the cap beam bottom formwork and the top formwork.

5. A cap beam construction method according to claim 4, characterized in that: The movable template in S1 is 1.2m away from the top template.

6. A cap beam construction method according to claim 4, characterized in that: The connections between the cap beam bottom formwork, the cap beam side formwork, the cap beam end formwork and the top formwork are all provided with sealing members.

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