Damper cantilever one-time construction method

Abstract

The invention relates to the technical field of building damper cantilever wall pouring construction, in particular to a damper cantilever one-time construction method which comprises the following steps: S1, paying off a cantilever wall; s2, cantilever wall steel bar binding; s3, template manufacturing and mounting; s4, the lower cantilever wall is poured and formed; s5, closing the bottom die; s6, the upper cantilever wall is poured and formed; s7, concrete curing; s8, the cantilever wall formwork is dismantled; wherein the step S1 specifically comprises the following steps of: accurately rechecking in place of paying-off: accurately paying-off the position of a cantilever wall by a construction worker according to an engineering plane layout diagram and a field positioning axis; in the step S2, the specific operation steps are as follows: after accurate positioning in the step S1, according to the setting position for positioning the cantilever wall reinforcing steel bars in a design drawing, the cantilever wall reinforcing steel bars are accurately positioned and bound; in the step S3, a cantilever wall formwork is used for installing and fixing the formwork in the formwork manufacturing and installing process; in the step S5, the concrete chute arranged between the cantilever wall formworks is dismantled, the push-pull groove in the bottom of the upper cantilever wall formwork is plugged, and then pouring of the upper cantilever wall is continued, so that the problems that the construction amount is increased, the construction efficiency is low and the construction cost is high due to the fact that a traditional damper cantilever wall needs to be built through two times of pouring are solved.

Description

Technical Field

[0001] The invention relates to the technical field of building damper cantilever wall casting construction, and in particular to a damper cantilever one-time construction method. Background Art

[0002] Nowadays, viscous dampers have been widely used in the construction field. Viscous dampers consume part of the vibration energy of the structure in the form of heat through the viscous effect of the damping material, so as to alleviate the impact of external loads, reduce structural vibration and achieve the effect of shock absorption. The construction of the upper and lower cantilever walls of the damper is an important part of the viscous damper system. In the traditional construction process, the cantilever wall under the damper is constructed as a secondary structure, which leads to an increase in the secondary structure engineering volume and affects the installation progress of the damper, affecting the subsequent construction process. In view of the above situation, the construction project of Zhaotong Health Vocational College has developed a one-time construction technology for the upper and lower cantilever walls through research and improvement and project practice, which has changed the construction process of the traditional damper lower cantilever wall as a secondary structure, simplified the construction process of the cantilever wall, accelerated the progress of the cantilever wall construction, saved costs and ensured the quality of the cantilever wall construction, and thus formulated this method. Summary of the invention

[0003] The purpose of the present invention is to provide a one-time construction method for a damper cantilever, so as to solve the problem that the traditional construction of a damper cantilever wall requires two pourings to complete, which increases the construction workload, has low construction efficiency and high construction cost.

[0004] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0005] A damper cantilever one-time construction method comprises the following steps:

[0006] S1: cantilever wall layout;

[0007] S2: cantilever wall reinforcement tying;

[0008] S3: template making and installation;

[0009] S4: Casting of lower cantilever wall;

[0010] S5: closed bottom mold;

[0011] S6: Casting of the upper cantilever wall;

[0012] S7: Concrete curing;

[0013] S8: Cantilever wall formwork removal;

[0014] The specific steps in S1 are: accurate verification of the layout: according to the project plan layout and the on-site positioning axis, the construction worker accurately lays out the cantilever wall position;

[0015] In said S2, the specific operation steps are: after accurate positioning in step S1, the setting position of the cantilever wall reinforcement is positioned according to the design drawing, and the cantilever wall reinforcement is accurately positioned and tied;

[0016] In S3, the cantilever wall formwork is used to install and fix the formwork during the formwork installation;

[0017] In S5, the specific operation steps are to remove the concrete chute provided between the cantilever wall formworks, seal the push-pull groove at the bottom of the upper cantilever wall formwork, and then continue to cast the upper cantilever wall.

[0018] Preferably, the cantilever wall formwork is composed of a lower cantilever wall formwork and an upper cantilever wall formwork; a concrete chute is connected between the lower cantilever wall formwork and the upper cantilever wall formwork; and the concrete chute is obliquely arranged between the lower cantilever wall formwork and the upper cantilever wall formwork.

[0019] Preferably, the lower cantilever wall formwork has two side panels and front and rear enclosures to form a frame-type structure; a formwork reinforcement steel pipe is arranged on the outer side of the lower cantilever wall formwork; the formwork reinforcement steel pipe is an integrated structure; the formwork reinforcement steel pipe; connects the lower cantilever wall formwork and the upper cantilever wall formwork.

[0020] Preferably, the upper cantilever wall formwork has two side panels and front and rear panels to form a frame structure; a casting bottom plate is provided at the bottom of the upper cantilever wall formwork; the casting bottom plate is a wooden beam structure; a casting concrete push-pull groove is provided in the middle of the casting bottom plate; push-pull plates are provided on the sides of the casting concrete push-pull groove; and a concrete chute is inserted into the casting concrete push-pull groove.

[0021] Preferably, the specific steps of S4: casting and forming the lower cantilever wall are: using pumped concrete to directly cast concrete into the upper cantilever wall formwork; using the drawer principle to reserve a push-pull groove (drawer) at the bottom formwork of the upper cantilever wall for concrete flow; completing the casting of the lower cantilever wall

[0022] Preferably, the specific steps of S6: casting and forming the upper cantilever wall are: after completing the casting and forming of the lower cantilever wall, use a push-pull plate to close the casting concrete push-pull trough; remove the concrete chute; continue to use pumped concrete to cast and form the upper cantilever wall; after the concrete is poured to fill the upper cantilever wall formwork, perform the casting construction in one go.

[0023] Preferably, in the steps S4 and S6, a small portable vibrator is continuously used during the pouring process to vibrate and compact the concrete poured in the lower cantilever wall formwork and the upper cantilever wall formwork.

[0024] Preferably, in the template manufacturing and installation step: a 240*200 push-pull groove for pouring concrete is reserved at the bottom of the template; and the reserved fracture size of the pouring bottom plate is 15-30mm smaller than the hole at the bottom of the template on each side.

[0025] Preferably, after the lower cantilever wall formwork and the upper cantilever wall formwork are fixed, the supporting and fixed formwork reinforcement steel pipes need to be calibrated to ensure that each formwork reinforcement steel pipe is vertical.

[0026] Compared with the prior art, the present invention can achieve one of the following beneficial effects:

[0027] 1. Cost saving: The traditional construction process is to cast the upper cantilever wall first → cast the lower cantilever for the second time, while the one-time construction technology of the upper and lower cantilever walls simplifies the construction process and reduces the amount of secondary structure engineering, avoiding the waste of concrete, material handling and secondary garbage removal caused by the construction of the secondary structure damper lower cantilever wall, saving concrete and manpower, and saving costs.

[0028] 2. Quality is guaranteed: One-time construction technology for upper and lower cantilever walls. Simultaneous reinforcement of the upper and lower cantilever walls makes it easier to control the verticality of the upper and lower cantilever walls, avoid misalignment and avoid construction cold joints that may be caused by untimely transportation of secondary structure concrete, and better ensure the quality of the upper and lower cantilever walls of the damper.

[0029] 3. In the one-time construction technology of upper and lower cantilever walls, the upper and lower cantilever walls are constructed simultaneously with the main structure, which reduces the construction workload of the secondary structure, simplifies the construction process, and speeds up the construction progress.

[0030] 4. Environmental protection: Avoid the waste of concrete caused by secondary pouring of concrete and the removal of secondary materials, saving manpower and material resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a schematic diagram of the process flow of the present invention.

[0032] Figure 2 This is a schematic diagram of the casting template structure of the present invention.

[0033] Figure 3 This is the cantilever formwork object of the present invention.

[0034] Figure 4 This is the cantilever formwork object of the present invention.

[0035] Figure 5 This is the cantilever formwork object of the present invention.

[0036] Figure 6 It is a schematic diagram of the reinforcement construction structure of the present invention.

[0037] Figure 7 It is a schematic diagram of the reinforcement construction structure of the present invention.

[0038] Figure 8 This is a casting structure diagram of the present invention.

[0039] Fig. 9 This is a comparison chart of the construction costs of the present invention. DETAILED DESCRIPTION

[0040] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] Example 1

[0042] A damper cantilever one-time construction method comprises the following steps:

[0043] S1: cantilever wall layout;

[0044] S2: cantilever wall reinforcement tying;

[0045] S3: template making and installation;

[0046] S4: Casting of lower cantilever wall;

[0047] S5: closed bottom mold;

[0048] S6: Casting of the upper cantilever wall;

[0049] S7: Concrete curing;

[0050] S8: Cantilever wall formwork removal;

[0051] The specific steps in S1 are: accurate verification of the layout: according to the project plan layout and the on-site positioning axis, the construction worker accurately lays out the cantilever wall position;

[0052] In said S2, the specific operation steps are: after accurate positioning in step S1, the setting position of the cantilever wall reinforcement is positioned according to the design drawing, and the cantilever wall reinforcement is accurately positioned and tied;

[0053] In S3, the cantilever wall formwork is used to install and fix the formwork during the formwork installation;

[0054] In the S5, the specific operation steps are to remove the concrete chute provided between the cantilever wall formworks, seal the push-pull groove at the bottom of the upper cantilever wall formwork, and then continue to cast the upper cantilever wall;

[0055] It is possible to utilize the drawer principle to reserve a push-pull groove (drawer) at the bottom formwork of the upper cantilever wall for concrete flow. After the lower cantilever wall is cast, the push-pull groove (drawer) is closed, and then the upper cantilever wall is cast. During the installation of the upper and lower cantilever wall formworks of the damper, a 240*200 push-pull groove is reserved at the bottom formwork of the upper cantilever wall, and the back ribs are disconnected up and down at the push-pull groove. After the formwork is reinforced, concrete is poured. The concrete flows into the lower cantilever wall formwork through the push-pull groove and the shuttle groove. A small portable vibrator is used to vibrate the lower cantilever wall concrete. After the lower cantilever wall is cast, the push-pull groove is tightened and reinforced with nails, and the upper cantilever wall is cast.

[0056] Example 2

[0057] On the basis of Example 1, the cantilever wall formwork is composed of a lower cantilever wall formwork and an upper cantilever wall formwork; a concrete chute is connected between the lower cantilever wall formwork and the upper cantilever wall formwork; the concrete chute is obliquely arranged between the lower cantilever wall formwork and the upper cantilever wall formwork, and the lower cantilever wall formwork has two side panels and front and rear panels to form a frame structure; a formwork reinforcement steel pipe is arranged on the outside of the lower cantilever wall formwork; the formwork reinforcement steel pipe is an integrated structure; the formwork reinforcement steel pipe; the lower cantilever wall formwork and the upper cantilever wall formwork are connected, and the upper cantilever wall formwork has two side panels and front and rear panels to form a frame structure; a casting bottom plate is arranged at the bottom of the upper cantilever wall formwork; the casting bottom plate is a wooden beam structure; a casting concrete push-pull groove is arranged in the middle of the casting bottom plate; a push-pull plate is arranged on the side of the casting concrete push-pull groove; a concrete chute is inserted into the casting concrete push-pull groove, and the S4: the specific steps of casting and forming the lower cantilever wall are: using pumped concrete to directly push upward into the cantilever wall formwork Pour concrete; use the drawer principle to reserve a push-pull groove at the bottom form of the upper cantilever wall for concrete flow; complete the pouring of the lower cantilever wall, the S6: upper cantilever wall pouring and molding specific steps are: after completing the pouring and molding of the lower cantilever wall, use a push-pull plate to close the pouring concrete push-pull groove; remove the concrete chute; continue to use pumped concrete to pour the upper cantilever wall; after the concrete is poured into the upper cantilever wall formwork, pour the construction at one time, in the S4 and S6 steps, a small portable vibrator must be used continuously during the pouring process to vibrate and compact the concrete poured in the lower cantilever wall formwork and the upper cantilever wall formwork, in the formwork installation step: reserve a 240*200 pouring concrete push-pull groove at the bottom of the formwork; the reserved fracture size of the pouring bottom plate is 15-30mm smaller than the bottom hole of the formwork on each side, after the lower cantilever wall formwork and the upper cantilever wall formwork are fixed, the supporting and fixed formwork reinforcement steel pipes must be calibrated, and the verticality of each formwork reinforcement steel pipe must be ensured;

[0058] The lower cantilever wall formwork and the upper cantilever wall formwork that can be set up modularly improve the assembly and splicing speed of the traditional casting formwork, and the concrete chute set up with an independent structure can conveniently adjust the casting spacing between the lower cantilever wall and the upper cantilever wall by changing the inclination angle of the concrete chute; when installing the cantilever wall formwork with a large height, the verticality between the lower cantilever wall formwork and the upper cantilever wall formwork is ensured by the integrated vertically set formwork reinforcement steel pipe, and the formwork reinforcement steel pipe is fixed by the multi-layer horizontal square steel set on the outside of the formwork reinforcement steel pipe to ensure stability during the casting process; different from the traditional technology, while improving the casting quality of the damper cantilever wall, the one-time casting is adopted to greatly shorten the construction time, reduce the construction cost and improve the construction efficiency.

[0059] Although the present invention is described herein with reference to a number of illustrative embodiments of the present invention, it will be appreciated that those skilled in the art may devise many other modifications and implementations that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, drawings, and claims, a variety of variations and modifications may be made to the components and / or layout of the subject combination layout. In addition to the variations and modifications made to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. A damper cantilever one-time construction method, characterized in that: The following steps are involved: S1: cantilever wall layout; S2: cantilever wall reinforcement tying; S3: template making and installation; S4: Casting of lower cantilever wall; S5: closed bottom mold; S6: Casting of the upper cantilever wall; S7: Concrete curing; S8: Cantilever wall formwork removal; The specific steps in S1 are: accurate verification of the layout: according to the project plan layout and the on-site positioning axis, the construction worker accurately lays out the cantilever wall position; In said S2, the specific operation steps are: after accurate positioning in step S1, the setting position of the cantilever wall reinforcement is located according to the design drawing, and the cantilever wall reinforcement is accurately positioned and tied; In S3, the cantilever wall formwork is used to install and fix the formwork during the formwork installation; In the above S5, the specific operation steps are to remove the concrete chute provided between the cantilever wall formworks, seal the push-pull groove at the bottom of the upper cantilever wall formwork, and then continue to cast the upper cantilever wall.

2. A damper cantilever one-time construction method according to claim 1, characterized in that: The cantilever wall formwork is composed of a lower cantilever wall formwork and an upper cantilever wall formwork; a concrete chute is connected between the lower cantilever wall formwork and the upper cantilever wall formwork; the concrete chute is inclinedly arranged between the lower cantilever wall formwork and the upper cantilever wall formwork.

3. The damper cantilever one-time construction method according to claim 2 is characterized in that: The lower cantilever wall formwork has a frame-type structure consisting of two side panels and front and rear enclosures; a formwork reinforcement steel pipe is arranged on the outer side of the lower cantilever wall formwork; the formwork reinforcement steel pipe is an integrated structure; the formwork reinforcement steel pipe connects the lower cantilever wall formwork and the upper cantilever wall formwork.

4. The damper cantilever one-time construction method according to claim 2 is characterized in that: The upper cantilever wall formwork has a frame structure composed of two side panels and front and rear panels; a casting bottom plate is arranged at the bottom of the upper cantilever wall formwork; the casting bottom plate is a wooden beam structure; a casting concrete push-pull groove is arranged in the middle of the casting bottom plate; a push-pull plate is arranged on the side of the casting concrete push-pull groove; a concrete chute is inserted into the casting concrete push-pull groove.

5. The damper cantilever one-time construction method according to claim 1 is characterized by: The specific steps of S4: casting and forming the lower cantilever wall are: using pumped concrete to directly cast concrete into the upper cantilever wall formwork; using the drawer principle to reserve a push-pull groove at the bottom formwork of the upper cantilever wall for concrete flow; and completing the casting of the lower cantilever wall.

6. The damper cantilever one-time construction method according to claim 1 is characterized by: The specific steps of S6: casting and forming the upper cantilever wall are as follows: after completing the casting and forming of the lower cantilever wall, use a push-pull plate to close the casting concrete push-pull trough; remove the concrete chute; continue to use pumped concrete to cast and form the upper cantilever wall; after the concrete is poured to fill the upper cantilever wall formwork, cast the construction in one go.

7. The damper cantilever one-time construction method according to claim 1 is characterized by: In the steps S4 and S6, a small portable vibrator needs to be used continuously during the pouring process to vibrate and compact the concrete poured in the lower cantilever wall formwork and the upper cantilever wall formwork.

8. The damper cantilever one-time construction method according to claim 1 is characterized by: In the template manufacturing and installation steps: a 240*200 pouring concrete push-pull groove is reserved at the bottom of the template; the reserved fracture size of the pouring bottom plate is 15-30mm smaller than the hole at the bottom of the template on each side.

9. The damper cantilever one-time construction method according to claim 1 is characterized by: After the lower cantilever wall formwork and the upper cantilever wall formwork are fixed, the supporting and fixed formwork reinforcement steel pipes need to be calibrated to ensure that each formwork reinforcement steel pipe is vertical.

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