Construction method of a channel type counterforce pedestal

Abstract

The application discloses a kind of channel type counterforce pedestal construction methods, using the following steps:1) release the position line of channel and anchor hole module;2) bind the bottom reinforcement of pedestal;3) install channel and anchor hole module;4) level, heightening;5) bind the middle reinforcement of pedestal located below anchor hole;6) install connecting anchor hole assembly, and use connecting anchor hole assembly to connect the two installation channels and anchor hole modules adjacent to left and right together, channel and anchor hole module include support, two rows of channels and a row of module anchor hole assembly connected between them, module anchor hole assembly and channel are supported by support;Connecting anchor hole assembly and module anchor hole assembly are the same structure, including vertically arranged anchor hole and two upper and lower cross beams, anchor hole is centrally arranged, and is connected with two cross beams by horizontal support plate;7) bind the upper reinforcement of pedestal, close channel and anchor hole using cover plate;8) pour concrete.The application has high installation precision and fast construction speed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of three-dimensional counter-force structure laboratory construction, in particular to a channel-type counter-force pedestal construction method. BACKGROUND

[0002] With the continuous emergence of new structure theories and calculation methods, many complex structures need to be verified by structure tests, and the importance of structure tests is increasingly prominent. A structure laboratory is an indispensable hardware platform for scientific tests in the field of civil engineering, and a three-dimensional counter-force structure laboratory is a necessary equipment platform for large-scale and full-scale structure and component quasi-static and quasi-dynamic tests, including counter-force walls and counter-force pedestals, wherein the counter-force pedestals include counter-force pedestals with basements and loading holes and channel-type counter-force pedestals with anchor holes.

[0003] Counter-force slots and anchor holes are counter-force devices for balancing the vertical loads applied to test pieces during structure tests, and the installation precision and quality of the counter-force slots and anchor holes are very high, and a single point can bear upward pull force of 50t or more, which is a key of channel-type counter-force pedestal installation and construction. If a conventional process is used, the standard slot resistance is not easy to release, and the slot is prone to anti-pull cracks, which affects subsequent use. Using a traditional construction method, the installation precision is low, and the construction speed is slow. The channel steel opening of the slot faces inward, and the space between the slots needs to be poured twice. The support steel is directly welded on the web of the channel steel, and the welding deformation is large and a one-plane cover plate cannot be installed. Since the channel-type counter-force pedestal is only used in a structure laboratory and has few applications, there is almost no related literature to refer to, and there is no successful construction case. SUMMARY

[0004] The present application provides a channel-type counter-force pedestal construction method to solve the technical problems in the prior art, and the method has high installation precision and fast construction speed.

[0005] The technical scheme adopted by the present application to solve the technical problems in the prior art is: a channel type counterforce pedestal construction method, adopting the following steps: 1) laying out the position line of the channel and anchor hole module on the foundation cushion layer; 2) binding the bottom steel bars of the pedestal; 3) installing the channel and anchor hole module according to the design position, wherein the channel and anchor hole module comprises a support, two rows of channels and a row of module anchor hole assemblies connected between them, and the module anchor hole assembly and the channel are supported by the support; 4) leveling and heightening; 5) binding the middle steel bars of the pedestal below the anchor hole; 6) installing the connecting anchor hole assembly according to the design position, and connecting the left and right adjacent two installation channels and anchor hole modules together by using the connecting anchor hole assembly; the connecting anchor hole assembly is the same in structure as the module anchor hole assembly, comprising an anchor hole arranged vertically and two horizontal beams arranged vertically, and the anchor hole is arranged in the middle and connected with the two horizontal beams by a horizontal support plate; 7) binding the upper steel bars of the pedestal, and closing the channel and anchor hole by using a cover plate; and 8) pouring concrete.

[0006] The upper part of the channel is composed of two channel steels arranged back to back.

[0007] Cover plate stops are arranged on the channel and the anchor hole, cover plates flush with the main body are arranged on the cover plate stops, and counterweight structures are arranged below the cover plates.

[0008] A plurality of evenly distributed rib plates are arranged in the channel steel of the channel, and the rib plates are connected with the support through vertical rods; the upper horizontal beams of the connecting anchor hole assembly and the module anchor hole assembly are connected with the rib plates and the vertical rods, and the lower horizontal beams are connected with the vertical rods.

[0009] Pullout stress release holes are arranged on the rib plates.

[0010] The anchor hole comprises a nut at the lower part, a positioning hole at the upper part, an anchor plate at the outer lower part, and a flange assembled at the top, and a positioning connecting hole is arranged on the flange, and the nut is assembled at the lower end of the main body of the anchor hole.

[0011] The nut is assembled at the lower end of the main body of the anchor hole.

[0012] The support is welded by channel steel, and a support horizontal beam is arranged at the top, the vertical rods are supported by the support horizontal beam, and the vertical rods are made of angle steel.

[0013] The upper horizontal beam and the lower horizontal beam of the connecting anchor hole assembly are both made of channel steel.

[0014] The present application has the advantages and positive effects that:

[0015] 1) The module embedded part is adopted, and the concrete can be poured at one time.

[0016] 2) The module is made by using advanced processing technology of the factory, high precision, and then the installation precision and construction efficiency of the site can be improved.

[0017] 3) The channel adopts the structure of the channel steel opening outward, is connected with the support through the channel steel rib plate and the vertical rod, and has small welding deformation; the cover plate is ensured flush with the channel by processing the cover plate stop on the channel; the uplift stress can be effectively released by setting the uplift stress release hole on the channel steel rib plate, and the channel is prevented from being cracked.

[0018] 4) The anchor hole adopts the machining assembly structure and has high precision; the nut is arranged at the lower part, so as to be universal with the anchor rod of the subsequent pedestal; the upper part is provided with the positioning hole, which can be used for limiting the anchor rod; the anchor plate is arranged, so that the uplift performance of the anchor hole is improved; the flange is arranged at the top, and the positioning connection hole is additionally arranged on the flange, so that the positioning connection in the test is facilitated. Meanwhile, the anchor hole is connected with the cross beam through the support plate, so that the installation precision can be improved.

[0019] 5) The anchor hole assembly is positioned by means of the module support, the vertical support is saved, the horizontal support is additionally arranged on the whole module support, the stability and the uplift performance of the whole module support are improved.

[0020] 6) After the test is completed, the cover plate flush with the main body can be additionally arranged on the anchor hole and the channel, and the safety is good. The cover plate adopts the lower paste counterweight structure, is not easy to move or overturn, and is beneficial to the protection of the finished product.

[0021] In summary, the installation precision is high, and the construction speed is fast. BRIEF DESCRIPTION OF DRAWINGS

[0022] Figure 1 is the flow chart of the application;

[0023] Figure 2 is the embedded part plane schematic view of the application;

[0024] Figure 3 is the A-A sectional view of Figure 2 ; is the side view of ; is the side elevation view of

[0025] ; is the structure schematic view of the anchor hole assembly and the module anchor hole assembly of the application; Figure 4

[0026] Figure 5 is the side elevation view of the channel and the anchor hole module of the application;

[0027] Figure 6 is the side view of Figure 5 ; is the side view of ; is the structure schematic view of the anchor hole assembly and the module anchor hole assembly of the application;

[0028] Figure 7

[0029] Figure 8A schematic view of the anchor hole structure of the present application;

[0030] Figure 9 A schematic view of the flange structure of the present application.

[0031] In the figure: 1, channel and anchor hole module; 1-1, support; 1-2, channel; 1-3, module anchor hole assembly; 1-4, cover plate stop; 1-5, rib plate; 1-6, vertical rod; 2, connecting anchor hole assembly; 2-1, anchor hole; 2-1-1, nut; 2-1-2, positioning hole; 2-1-3, anchor plate; 2-1-4, flange; 2-1-5, positioning connecting hole; 2-2, upper cross beam; 2-3, lower cross beam; 2-4, horizontal support plate; 2-5, cover plate. DETAILED DESCRIPTION

[0032] In order to further understand the invention content, characteristics and effects of the present application, the following examples are given, and the detailed description is as follows in conjunction with the drawings:

[0033] Please refer to Figures 1-9 A channel type counterforce pedestal construction method, which adopts the following steps:

[0034] 1) Laying out the position line of the channel and anchor hole module on the foundation cushion layer.

[0035] 2) Binding the bottom steel bars of the pedestal.

[0036] 3) Installing the channel and anchor hole module according to the design position; the channel and anchor hole module 1 comprises a support 1-1, two rows of channels 1-2 and a row of module anchor hole assemblies 1-3 connected between them, and the module anchor hole assemblies 1-3 and the channels 1-2 are supported by the support 1-1.

[0037] 4) Leveling and heightening;

[0038] 5) Binding the middle steel bars of the pedestal located below the anchor hole;

[0039] 6) Installing the connecting anchor hole assembly according to the design position, and connecting the left and right adjacent two installation channel and anchor hole modules together by using the connecting anchor hole assembly.

[0040] The connecting anchor hole assembly 2 is the same structure as the module anchor hole assembly 1-3, comprising a vertically arranged anchor hole 2-1 and two upper and lower cross beams, and the anchor hole 2-1 is arranged in the middle and connected with the two cross beams through a horizontal support plate 2-4.

[0041] The left and right adjacent two channel and anchor hole modules 1 are connected through a plurality of connecting anchor hole assemblies 2.

[0042] 7) Binding the upper steel bars of the pedestal, and closing the channel and anchor hole by using the cover plate to prevent the concrete from entering during the subsequent pouring.

[0043] 8) Pouring concrete.

[0044] In this embodiment, the upper part of the channel 1-2 is formed by two channel steels back to back. A cover stop 1-4 is provided on the channel 1-2. A cover stop is provided on both the channel 1-2 and the anchor hole 2-1, a cover plate flush with the main body is provided on the cover stop, and a counterweight structure is provided below the cover plate. In the figure, the cover plate 2-5 is shown installed on the anchor hole 2-1, and the structure of the cover plate installed on the channel 1-2 is not shown, but they are similar, and will not be described here. A plurality of evenly distributed rib plates 1-5 are provided in the channel steels of the channel 1-2, and the rib plates 1-5 are connected with the support 1-1 through vertical rods 1-6; the connecting anchor hole assembly 2, the upper cross beam 2-2 is connected with the rib plate 1-5 and the vertical rod 1-6, and the lower cross beam 2-3 is connected with the vertical rod 1-6. A pullout stress release hole is provided on the rib plate 1-5. The anchor hole 2-1, the lower part is a nut 2-1-1, the upper part is provided with a positioning hole 2-1-2, the outer lower part is provided with an anchor plate 2-1-3, and the top is provided with a flange 2-1-4, and the flange 2-1-4 is provided with a positioning connection hole 2-1-5, and the nut 2-1-1 is assembled at the lower end of the main body of the anchor hole 2-1. The support 1-1 is welded by channel steel, and the top is provided with a support cross beam, the vertical rod 1-6 is supported by the support cross beam, and the vertical rod 1-6 is made of angle steel. The upper cross beam 2-2 and the lower cross beam 2-3 of the connecting anchor hole assembly 2 are both made of channel steel.

[0045] Although the preferred embodiments of the present application are described above in conjunction with the drawings, the present application is not limited to the specific embodiments described above, and the specific embodiments described above are only illustrative and not restrictive. Those skilled in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and these all belong to the protection scope of the present application.

Claims

1. A construction method for a channel-type reaction platform, characterized in that, The following steps are adopted: 1) Mark the position lines of the channels and anchor hole modules on the foundation pad; 2) Tie the bottom reinforcing bars of the pier; 3) Install the channel and anchor hole modules according to the design positions. The channel and anchor hole module includes a bracket, two rows of channels, and a row of module anchor hole assemblies connected between them, wherein the module anchor hole assembly and the channels are supported by the bracket; 4) Leveling and raising; 5) Tie the reinforcing bars in the middle of the platform below the anchor hole; 6) Install the connecting anchor hole assembly according to the design position, and use the connecting anchor hole assembly to connect the two adjacent installation channels and anchor hole modules together; The connecting anchor hole assembly has the same structure as the module anchor hole assembly, including a vertically arranged anchor hole and two horizontal beams. The anchor hole is centrally located and connected to the two horizontal beams through a horizontal support plate. 7) The upper reinforcing bars of the tying platform are sealed with cover plates to enclose the channel and anchor holes; the upper part of the channel is composed of two back-to-back channel steels; cover plate stops are provided on both the channel and the anchor holes, and a cover plate flush with the main body is provided on the cover plate stops, and a counterweight structure is provided below the cover plate; multiple evenly distributed ribs are provided in the channel steel of the channel, and tensile stress relief holes are provided on the ribs, and the ribs are connected to the support through uprights; the upper crossbeam of the connecting anchor hole assembly and the module anchor hole assembly is connected to the ribs and the uprights, and the lower crossbeam is connected to the uprights; 8) Pour concrete.

2. The construction method of the channel-type reaction platform according to claim 1, characterized in that, The anchor hole has a nut at the bottom, a positioning hole at the top, an anchor plate at the lower outer side, and a flange at the top. The flange has a positioning connection hole, and the nut is installed at the lower end of the main body of the anchor hole.

3. The construction method of the channel-type reaction platform according to claim 2, characterized in that, The nut is assembled at the lower end of the main body of the anchor hole.

4. The construction method of the channel-type reaction platform according to claim 1, characterized in that, The bracket is welded from channel steel, and a supporting beam is provided at the top. The upright is supported by the supporting beam and is made of angle steel.

5. The construction method of the channel-type reaction platform according to claim 1, characterized in that, The upper and lower crossbeams of the connecting anchor hole assembly are both made of channel steel.

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