A kind of lifting type cap beam reinforcement binding construction technology

Abstract

The present application relates to the field of steel bar binding technology, and in particular to a hoisting cap beam steel bar binding construction process, which includes the following steps: platform building: placing the cap beam bottom formwork horizontally at the construction height by hoisting to form a binding platform; support positioning: placing a number of support components on the binding platform, and arranging a number of main bars above the support components based on the support components; stirrup arrangement: lifting the support components by hoisting, and arranging stirrups based on the support components; binding and fixing: adjusting the spacing between the main bars and stirrups based on the support components, and lowering the main bars to the design elevation for binding and fixing. The present application can conveniently and efficiently carry out steel bar binding construction in waterfront locations.

Description

Technical Field

[0001] The present application relates to the field of steel bar binding technology, and in particular to a hoisting type cap beam steel bar binding construction process. Background Art

[0002] The cap beam is commonly known as the cap beam, also known as the crown beam. It is set on the top of the pile pier and is mainly used to support, distribute and transfer the load of the upper structure. Especially in the construction of docks, unlike the construction of general bridges, docks are built along the river, and the cap beam needs to be close to the water surface or even partially in the water surface.

[0003] Therefore, in order to carry out the construction of the cap beam, the method commonly used for tying the cap beam reinforcement in the prior art is: now a temporary construction platform is formed in the dock area, and then after the reinforcement is tied, the tied reinforcement is lowered by hoisting, and the reinforcement and the formwork are fixed to the pile structure before pouring.

[0004] However, in actual construction, since the cap beam is horizontal, the steel bars need to be placed horizontally after binding, and multi-point lifting is used to reduce the excessive bending and deformation of the steel bars, which makes the lifting process relatively complicated and still prone to deformation. If the steel bars are tied at the designed elevation, it is still necessary to temporarily assemble the platform on the water surface before tying the steel bars. The construction process is complicated and consumes more materials. Therefore, how to carry out the construction of steel bar binding conveniently and efficiently in the waterside location is an urgent problem to be solved. Summary of the invention

[0005] In order to be able to conveniently and efficiently carry out steel bar binding construction in water-prone locations, the present application provides a hoisting type cap beam steel bar binding construction process.

[0006] The present application provides a construction process for tying steel bars of a hoisting cap beam, which adopts the following technical solution:

[0007] A hoisting cap beam reinforcement binding construction process comprises the following steps:

[0008] Platform assembly: Place the cap beam bottom formwork horizontally at the construction height by hoisting to form a binding platform.

[0009] Support positioning: Place several support components on the tying platform, and arrange several main reinforcements above the support components based on the support components.

[0010] Stirrup arrangement: The supporting components are lifted by hoisting, and stirrups are arranged based on the supporting components.

[0011] Binding and fixing: adjust the spacing between main reinforcement and stirrups based on the supporting components, lower the main reinforcement to the designed elevation and then bind and fix it.

[0012] By adopting the above technical scheme, during the binding process, the bottom formwork of the cap beam is used as a temporary binding platform, which can not only be used for the casting of the cap beam in the later stage, but also can reduce the material consumption in the construction process and the additional working hours for building the construction platform. In addition, during the binding and construction process, due to the hoisting reason, there is no need for the binding platform to bear the load of the entire steel bar. The load of the main bars and stirrups are mainly borne by hoisting. The main bars are supported by a number of supporting components, and the stirrups are supported by a number of main bars, which effectively reduces the situation where the main bars are locally over-stressed, thereby significantly reducing the possibility of bending or deformation of the stirrups and main bars, so that the steel bars after binding are closer to the designed structure, which can not only shorten the construction period, but also optimize the quality of steel bar binding, and achieve simultaneous improvement of construction period reduction and quality optimization.

[0013] Optionally, the hoisting of the lashing platform and the supporting components are both based on a temporary construction platform on the water surface.

[0014] By adopting the above technical solution, during construction, the temporary construction platform on the water surface initially constructed can be used as the basis and as the overall load-bearing structure for steel bar binding, thereby reducing the construction of additional platforms during construction.

[0015] Optionally, the supporting component includes two or more supporting steel bars, and the supporting steel bars are welded and fixed to each other.

[0016] By adopting the above technical solution, the ability of the support component to bear the main reinforcement and stirrups can be effectively optimized, and the possibility of quality defects of the steel bars after binding due to deformation of the support component can be reduced.

[0017] Optionally, in the support positioning step, the support components are provided in two rows distributed up and down, and the main reinforcement is evenly distributed on the upper sides of the upper and lower rows of support components, and the main reinforcement on the upper side of the top support component is used as the main reinforcement of the side during binding.

[0018] By adopting the above technical scheme, during the arrangement of stirrups, the top of the stirrups is the main force-bearing component and is very easy to bend downward. At this time, due to the pressure of several main bars and supporting components on the top surface, the possibility of bending of the stirrups located between the two rows of supporting components can be effectively reduced; and in the process of steel bar binding, the main bars on the top are used as the side main bars, which can simultaneously realize the main bar binding positioning from top to bottom and from bottom to top, and effectively optimize the steel bar binding time.

[0019] Optionally, in the stirrup arrangement step, stirrups are inserted successively from the mid-span of the main reinforcement to both sides.

[0020] By adopting the above technical solution, stirrups are inserted and placed one by one from the middle of the span to both sides, which can effectively reduce the possibility of hoisting tilt due to the stress on the main reinforcement.

[0021] Optionally, in the binding and fixing step, the stirrups at the two ends of the main reinforcement and the corresponding positions are firstly bound, and the stirrups are successively bound and fixed from the two ends to the middle of the main reinforcement.

[0022] By adopting the above technical solution, the main reinforcement is first positioned as a whole by means of the stirrups at both ends of the main reinforcement, so as to avoid the positioning of the main reinforcement and stirrups at other positions being affected when the stirrups at the middle position move.

[0023] Optionally, in the step of arranging the stirrups, a hand chain hoist is installed based on the temporary construction platform on the water surface, and the supporting components are hoisted by multiple evenly distributed hand chain hoists.

[0024] By adopting the above technical solution, during the lifting or lowering process, only multiple people are needed to manually control the hand winch at the same time, avoiding the safety hazard caused by the need to connect multiple sets of circuits on the water surface.

[0025] Optionally, in the steps of arranging and / or binding and fixing the stirrups, the binding platform is provided with a plurality of supporting parts for supporting the stirrups.

[0026] By adopting the above technical solution, temporary auxiliary support can be provided to the stirrups during the arrangement and binding of the stirrups, thereby reducing the possibility of deformation or positioning deviation caused by deformation.

[0027] Optionally, the support portion is located between the lifting points of the support component.

[0028] By adopting the above technical solution, the auxiliary support for the stirrups can be made relatively more balanced.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] During construction, a temporary construction platform is used as the foundation. During the binding process, the bottom formwork of the cap beam is used as a temporary binding platform, which can not only be used for the later pouring of the cap beam, but also reduce the material consumption and the working hours of building the platform during the construction process. In the process of binding and construction, due to hoisting reasons, there is no need for the binding platform to bear the load of the entire steel bar. The loads of the main bars and stirrups are mainly borne by the temporary construction platform; auxiliary support for the stirrups and main bars can significantly reduce the possibility of bending or deformation of the stirrups and main bars, so that the steel bars after binding are closer to the designed structure, which can not only shorten the construction period, but also optimize the quality of steel bar binding, and achieve simultaneous improvement of construction period reduction and quality optimization. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 It is a flow chart of the construction process in the embodiment of the present application.

[0032] Figure 2 It is a schematic diagram of the lifting support component in the embodiment of the present application.

[0033] Figure 3 It is a schematic diagram of the structure of the supporting component in an embodiment of the present application.

[0034] Explanation of the accompanying reference numerals: 1. Binding platform; 11. Support part; 2. Support component; 21. Support steel bar; 3. Main reinforcement; 4. Stirrups; 5. Temporary construction platform; 51. Pull rod; 52. Lower longitudinal and transverse beams; 53. Support longitudinal beams; 54. Hand winch. DETAILED DESCRIPTION

[0035] The following is combined with Figure 1-3 This application is described in further detail.

[0036] The present application embodiment discloses a hoisting cap beam reinforcement binding construction process. Figure 1 and Figure 2 The construction process of hoisting cap beam reinforcement binding includes the following steps:

[0037] Platform assembly: The cap beam bottom formwork is placed horizontally at the construction height by hoisting to form a binding platform 1.

[0038] At the wharf construction site, the steel platform erected by the on-site cast-in-place pile construction is used as a temporary construction platform 5, and the temporary construction platform 5 is used as a load-bearing structure and a construction transfer platform. With the temporary construction platform 5 as the base as the hanging point, the cap beam bottom formwork is horizontally suspended to the height of the steel bar binding construction as the binding platform 1. The main bars 3, stirrups 4, spare steel bars and tools that need to be bound are placed on the binding platform 1, and the main bars 3 and stirrups 4 are first processed together and then transported to the binding platform 1, which can not only reduce the subsequent cap beam template installation process, but also use the cap beam bottom formwork as the binding platform 1, which can effectively reduce the platform materials used in on-site construction.

[0039] Specifically, the temporary construction platform 5 is provided with several tie rods 51 as the load-bearing components for lifting, and double-jointed gongs 45 are provided under the tie rods 51 as the lower longitudinal beams 52, and fixed by double bolts, and the double bolts are equipped with double-layer steel washers. Gongs 20 are placed on the upper side of the lower longitudinal beams 52 as the supporting longitudinal beams 53 for the binding platform 1. Gongs 20 are welded to the lower longitudinal beams 52 at the corners. Then, the outer contour edge line of the cap beam is released on the top surface of the lower longitudinal beams 52 to facilitate the control of the position of steel bar binding and template installation.

[0040] Support positioning: Place a number of support components 2 on the binding platform 1, and arrange a number of main bars 3 on the support components 2 based on the support components 2. Draw the edge line of the cap beam reinforcement on the top surface of the binding platform 1 to facilitate the binding and positioning of the reinforcement.

[0041] Reference Figure 2 and Figure 3Specifically, the support component 2 includes two or more support steel bars 21, that is, two or more parallel support steel bars 21 are welded together to form the support component 2, so as to enhance the overall bearing capacity of the support component 2 and reduce the possibility of bending. The support component 2 is preferably formed by welding three support steel bars 21 in this embodiment.

[0042] Furthermore, the plurality of support components 2 are divided into two upper and lower rows, and the support components 2 are flush with each other and arranged horizontally.

[0043] The main reinforcement 3 is first laid on the lower support component 2, and then the upper support component 2 is placed on the laid main reinforcement 3, and then the upper support component 2 is laid, and finally the main reinforcement 3 is laid on the upper support component 2 to complete the support positioning of the main reinforcement 3, and the support component 2 is perpendicular to the main reinforcement 3. After that, the support component 2 is hung up based on the temporary construction platform 5.

[0044] Specifically, a plurality of evenly distributed hand chain hoists 54 are fixedly installed on the temporary construction platform 5, and the support component 2 is hoisted by the hand chain hoists 54 so that the main reinforcement 3 can rise with it. The same support component 2 is hoisted by two or more hand chain hoists 54. Of course, the hand chain hoists 54 can also be replaced by electric hoists. In the process of hoisting the support component 2, the support component 2 is hoisted first, and the distance between the support component 2 and the binding platform 1 is greater than the height of the horizontally placed steel cage in the cap beam, so as to facilitate the binding and fixing of the steel bars.

[0045] Of course, in other embodiments, the support component 2 may also be configured as a horizontally placed I-beam, H-beam or angle steel or other components.

[0046] Arrangement of stirrups: lift the support component 2 by hoisting, and arrange stirrups 4 based on the support component 2.

[0047] Specifically, during the arrangement of the stirrups 4, the stirrups 4 are inserted one by one from the mid-span of the main reinforcement 3 toward both sides. That is, the top position of the stirrups 4 is located between the two rows of main reinforcements 3, so that the stirrups 4 can be supported by the main reinforcements 3, and then the spacing between adjacent stirrups 4 is adjusted by sliding to make a preliminary arrangement and positioning of the stirrups 4. In this process, since the top main reinforcement 3 cooperates with the pressure of the supporting steel bar 21, the possibility of bending of the stirrups 4 can be effectively reduced.

[0048] After the stirrups 4 are initially arranged, a number of support parts 11 are fixed below the stirrups 4. The support parts 11 can be set as pads or as steel bars that need to be tied and fixed later. Preferably, they are pads to support the bottom of the stirrups 4 and reduce the possibility of deformation of the stirrups 4 before tying. The support parts 11 are located between the hoisting points of the support component 2, that is, the support parts 11 are located between the points on the support component 2 that are hoisted by the hand chain hoist 54.

[0049] Binding and fixing: adjust the spacing between the main reinforcement 3 and the stirrups 4 based on the supporting component 2, lower the main reinforcement 3 to the designed elevation and then bind and fix it.

[0050] Specifically, the stirrups 4 at the two ends of the main reinforcement 3 are first tied and fixed to the arranged main reinforcement 3, and then the main reinforcement 3 on the upper side of the top support component 2 is slid laterally, and several main reinforcements 3 are fixed to the stirrups 4 one by one from top to bottom, so as to position the stirrups 4. Compared with the traditional bottom-up sequential binding, it can effectively save working procedures and reduce the interference between the temporary construction platform 5 and the tied steel bars. Compared with the overall lifting of the steel cage, it can also significantly reduce the deformation of the steel bars after binding, and optimize the casting quality of the cap beam.

[0051] The implementation principle of the embodiment of the present application is as follows: during construction, the temporary construction platform 5 is used as the basis. During the binding process, the binding platform 1 is used as a temporary binding platform 1. During the binding and construction process, it is not necessary to bear the entire load of the steel bars. The loads of the main bars 3 and stirrups 4 are mainly borne by the temporary construction platform 5. In addition, during the binding process, the stirrups 4 and the main bars 3 are supported by auxiliary means, which can significantly reduce the possibility of bending or deformation of the stirrups 4 and the main bars 3, so that the steel bars after binding are closer to the designed structure, which can not only shorten the construction period, but also optimize the quality of the steel bar binding, and achieve the simultaneous improvement of shortening the construction period and optimizing the quality.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A hoisting cap beam reinforcement binding construction process, characterized in that: The following steps are involved: Platform assembly: The cap beam bottom formwork is placed horizontally at the construction height by hoisting to form a lashing platform (1); Support positioning: a plurality of support components (2) are placed on the lashing platform (1), and a plurality of main reinforcements (3) are arranged on the support components (2) based on the support components (2), wherein the support components (2) are provided with two rows distributed up and down, and the main reinforcements (3) are evenly distributed on the upper sides of the support components (2) in the upper and lower rows, and the main reinforcements (3) on the upper side of the top support component (2) are used as the main reinforcements (3) on the side during lashing; Arrangement of stirrups: the support component (2) is hoisted by a hoisting method, and stirrups (4) are arranged based on the support component (2), the top of the stirrups (4) is located between two rows of main bars (3), so that the stirrups (4) can be supported by the main bars (3), and the tying platform (1) is provided with a plurality of support parts (11) for supporting the stirrups (4); Binding and fixing: Based on the support component (2), the spacing between the main reinforcement (3) and the stirrups (4) is adjusted, and the main reinforcement (3) is lowered to the designed elevation before being tied and fixed. First, the stirrups (4) at the two ends of the main reinforcement (3) are tied and fixed to the arranged main reinforcement (3). Then, the main reinforcement (3) on the upper side of the top support component (2) is slid sideways, and a plurality of main reinforcements (3) are fixed to the stirrups (4) from top to bottom.

2. A hoisting cap beam reinforcement binding construction process according to claim 1, characterized in that: The hoisting of the lashing platform (1) and the supporting component (2) is based on the temporary construction platform (5) on the water surface.

3. A hoisting cap beam reinforcement binding construction process according to claim 1, characterized in that: The supporting component (2) comprises two or more supporting steel bars (21), and the supporting steel bars (21) are welded and fixed to each other.

4. A hoisting cap beam reinforcement binding construction process according to claim 1, characterized in that: In the binding and fixing step, firstly, the two ends of the main reinforcement (3) and the stirrups (4) at the corresponding positions are bound, and then the stirrups (4) are bound and fixed successively from the two ends to the middle of the main reinforcement (3).

5. The hoisting cap beam reinforcement binding construction process according to claim 2 is characterized in that: In the step of arranging the stirrups, a hand chain hoist (54) is installed based on the temporary construction platform (5) on the water surface, and the supporting component (2) is hoisted by using a plurality of evenly distributed hand chain hoists (54).

6. The construction process for tying steel bars of a hoisting cap beam according to claim 1 is characterized in that: The support portion (11) is located between the lifting points of the support component (2).

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