Steel protection platform for isolating upper space and lower space of top of gate pier

Abstract

The utility model relates to a steel protection platform for isolating upper and lower spaces at the tops of gate piers, which comprises a plurality of gate piers and a plane steel beam structure, the plane steel beam structure is in a rectangular grid shape and is formed by connecting a plurality of cross beams and a plurality of longitudinal beams, and the front cross beam is suspended and erected in front of the top surfaces of the gate piers through a front-end support. The other cross beams are fixedly installed on the top face of the gate pier, the longitudinal beams are arranged in a segmented mode, the longitudinal beam between any two adjacent cross beams is a segment, the two ends of each segment of the longitudinal beam are fixedly connected to the corresponding side faces of the corresponding cross beams respectively, a plurality of purlines are arranged between the platform bottom plate and the plane steel beam structure, and the platform bottom plate is fixedly installed on the purlines. The upper space and the lower space of the top of the gate pier can be separated, the separated operation space is large, and safety is good.

Description

Technical Field

[0001] This utility model relates to a steel protective platform that isolates the upper and lower spaces of the top of a gate pier. Background Technology

[0002] During engineering construction, simultaneous work on the same vertical plane is strictly prohibited. However, in the construction of water conservancy projects, the removal and corrosion prevention of gates in the gate chamber and the modification of the working bridge above the gate chamber are often involved. Due to the limitation of the construction site, the gates are usually disassembled and transported to the factory for processing to avoid the situation of cross-operation between the upper and lower parts. Although in some cases a protective frame supported on the ground can be erected in the gate chamber to isolate the space inside the gate chamber, the working space isolated in this way is limited and highly dependent on the ground conditions, and the safety performance is relatively low. Utility Model Content

[0003] The purpose of this utility model is to provide a steel protective platform that isolates the upper and lower spaces of the gate pier top, thereby separating the upper and lower spaces of the gate pier top, creating a large working space with good safety.

[0004] The technical solution of this utility model is: a steel protective platform that isolates the upper and lower spaces of the gate pier top, including several gate piers and a planar steel beam structure. The planar steel beam structure is in the shape of a rectangular grid and is composed of several horizontal beams and several vertical beams connected together. The planar steel beam structure is fixedly erected on the top surface of some or all of the gate piers, and a platform base plate is provided on the planar steel beam structure.

[0005] Preferably, the front (foremost) crossbeam is suspended in the air in front of the top surface of the gate pier via a front end bracket, and the remaining crossbeams (excluding the front crossbeam) are fixedly installed on the top surface of the gate pier, thereby realizing the fixed installation of the planar steel structure on the top surface of part or all of the gate pier.

[0006] Preferably, the front-end support includes a support base plate and a cantilever. The support base plate is L-shaped (with an L-shaped cross-section) and has a front side plate and an upper side plate. The front side plate of the support base plate is attached to the upper part of the front side of the corresponding gate pier and is fixed (fixed to the gate pier) by anchor bolts provided on the upper part of the front side of the gate pier. The upper side plate of the support base plate is attached to the front part of the top surface of the corresponding gate pier and is fixed by anchor bolts provided on the front part of the top surface of the gate pier. The cantilever extends longitudinally forward, and its inner end (rear end) is fixedly connected (e.g., welded) to the front side surface of the front side plate of the support base plate. The front side beam is mounted on the top surface of the corresponding cantilever (each cantilever involved in the front side beam) and is fixedly connected to the cantilever (e.g., welded to the top surface of the cantilever).

[0007] Preferably, the crossbeam is a transversely extending I-beam.

[0008] Preferably, the connection between the I-beams used to form the crossbeam is by using a clamping plate assembly. The clamping plate assembly consists of two steel plates (clamping plates), which are respectively clamped on both sides of the web plates of the two I-beams that are joined together. The two clamping plates and the web plates of the two I-beams are fastened together by multiple clamping plate bolts passing through the clamping plates and the web plates of the I-beams (some bolts pass through the web plates of the I-beams on one side and some bolts pass through the web plates of the I-beams on the other side).

[0009] Preferably, the cantilever is a longitudinally extending I-beam.

[0010] Preferably, the longitudinal beam is made of longitudinally extending H-beams.

[0011] Preferably, the longitudinal beams are segmented, with the longitudinal beam between any two adjacent crossbeams forming a segment, and the two ends of each segment of the longitudinal beam being fixedly connected to the corresponding side of the corresponding crossbeam.

[0012] Furthermore, a number of purlins are provided between the platform base plate and the planar steel beam structure. The purlins extend longitudinally and are evenly spaced on the planar steel beam structure, and are fixedly connected to the crossbeams in the planar steel beam structure. The platform base plate is fixedly installed on the purlins.

[0013] Preferably, the platform base plate is composed of steel plates fully laid on the purlins, and the edges of the steel plates are intermittently welded to the corresponding parts of the purlins.

[0014] The beneficial effects of this utility model are as follows: Since the platform is erected on top of the gate pier, it does not occupy ground space, is not limited by ground conditions, does not require vertical support structures, offers good safety, is low in cost, allows for ground operations without platform limitations, provides a large working space, and can simultaneously serve as a working platform for overhead operations, facilitating related work. Because of the front-end support, the extension distance of the support cantilever can be set according to isolation and operational needs, allowing for the installation of platforms with corresponding spans, thereby effectively ensuring isolation effectiveness and safety. Furthermore, the L-shaped base plate of the front-end support provides excellent support capacity under appropriate installation conditions, allowing for the design of the support base plate size, material, and anchor bolts based on load conditions, achieving reliable support. Attached Figure Description

[0015] Figure 1 This is a front view schematic diagram of the present invention;

[0016] Figure 2 This is a top view of the present invention;

[0017] Figure 3 This is a schematic diagram of the connection structure of the beam, purlin and panel involved in this utility model;

[0018] Figure 4 This is a schematic diagram of the connection structure between the crossbeam and the longitudinal beam involved in this utility model;

[0019] Figure 5 This is a schematic diagram of the connection structure between I-beams in a crossbeam involved in this utility model;

[0020] Figure 6 This is a schematic diagram of the connection structure between purlins and purlin transverse connectors involved in this utility model;

[0021] Figure 7 This is a schematic diagram of the crossbeam, cantilever support, and gate pier connection structure involved in this utility model. Detailed Implementation

[0022] See Figures 1-7 The working platform of this utility model is erected on top of the gate pier (usually a reinforced concrete gate pier), and can be set up in the following ways:

[0023] 1) Clean the base surface of the top of the gate pier.

[0024] The top surface of the gate pier 10 should be kept clean and flat to meet the construction requirements for the erection platform.

[0025] 2) Install front-end support (or steel plate component)

[0026] Holes are drilled using an impact drill. Two holes are drilled side-by-side on the front end (facing the water) of the gate pier top surface, and two rows of holes are drilled side-by-side on the top of the front side of the gate pier, one hole at the top and one at the bottom of each row. Anchor bolts 14 are installed in the holes to fix the base plate 16 of the front support to the upper front corner of the gate pier. The base plate of the front support is L-shaped (L-shaped longitudinal section). The base plate is fastened to the upper front corner of the gate pier, with one flat plate (which can be called the upper plate) attached to the top surface of the gate pier and the other flat plate (which can be called the front plate) attached to the front side of the gate pier, and secured with anchor bolts on the top surface and the front side of the gate pier, respectively. The cantilever 17 of the front support extends horizontally forward and is pre-installed or fixed on-site (e.g., welded) to the front surface of the base plate.

[0027] The drilling depth on the top surface can be controlled to 16cm, and the drilling depth on the front (front side) can be controlled to 24cm, with a uniform drilling diameter of 2.4cm. After drilling, use an air pump and a thin tube inserted into the bottom of the hole to blow away the dust inside, then inject chemical adhesive and install anchor bolts. The number and relative position of these holes should meet the installation requirements of the base plate and be consistent with the number and relative position of the corresponding through holes on the base plate.

[0028] 3) Install other top surface anchors (top surface anchors other than those involved in the front-end support).

[0029] According to conventional methods, top anchor bolts are installed on the top surface of the gate pier (excluding the front end) to fix the other crossbeams (excluding the front crossbeam).

[0030] Based on the required lateral span of the platform, front-end supports and other top surface anchors are installed on all gate piers within the span in the manner described above.

[0031] 4) Install the crossbeam

[0032] Based on the installation structure, the crossbeam 20 can be divided into a front (foremost) crossbeam and other crossbeams (crossbeams other than the front crossbeam). The front crossbeam is fixedly installed (e.g., welded, or connected by threaded fittings) on the cantilever (upper surface of the cantilever) of each front support, while the other crossbeams are erected on the top surface of each gate pier, with a certain distance between them, and are fixed by anchor bolts (threaded connection, or welding) in the corresponding parts of each gate pier.

[0033] 5) Install longitudinal beams

[0034] The longitudinal beams are divided into 30 segments, with each segment fixedly installed between two adjacent transverse beams, and both ends of the segment fixedly welded to the side of the corresponding transverse beam.

[0035] The crossbeams and longitudinal beams are collectively referred to as steel beams, which together form the rectangular grid structure of the steel beams.

[0036] For ease of operation, crossbeam and longitudinal beam installation can be carried out in a staggered manner, or other suitable sequences can be adopted.

[0037] 6) Install purlins

[0038] The purlin 40 extends longitudinally and is fixedly mounted on the crossbeam. It can be fixedly connected to the crossbeam by welding (e.g., intermittent welding).

[0039] 7) Lay the platform base plate

[0040] The steel plate 50 used for laying the platform (base plate) is laid on the purlin and fixedly connected to the purlin by welding (e.g., intermittent welding).

[0041] For ease of operation, purlin installation and base plate installation can be carried out in parallel, or other suitable sequences can be adopted.

[0042] Depending on actual needs, guardrails can be installed around the platform base.

[0043] The same beam can be made up of multiple I-beams connected together. A clamp (or clamp assembly) 22 can be installed at the connection of two I-beams. The clamp consists of two steel plates, which are clamped on both sides of the web plates of the two I-beams at the connection. The clamp and the I-beams that are joined together are fastened together by multiple clamp bolts 23 that pass through the clamp and the web plates of the I-beams.

[0044] In some areas, transverse purlins (or purlin connectors) 41 may be installed to connect adjacent purlins. The transverse purlins may be made of the same profile as the purlins, and both ends are welded to the two purlins to be connected.

[0045] Purlins and steel beams can be welded intermittently, and purlins can be fully welded at their contact points. Steel plates should be fully laid on the purlins and can be welded intermittently to them.

[0046] The crossbeams, longitudinal beams, and purlins can all be made of Q235B steel. Specifically, the crossbeam cross section is I45a; the longitudinal beam cross section is HN200*100*5.5*8; the purlin cross section is [12; and the base plate is a 6mm thick checkered steel plate. The cantilever can be made of the same I-beams as the crossbeams, extending longitudinally, with the extension distance depending on actual needs.

[0047] This utility model utilizes a combination of I-beams / H-beams, channel steel, and steel plates to construct a steel protective platform, isolating the upper and lower spaces above the gate pier, allowing for simultaneous operations in both spaces. For example, bridge repair work can be carried out above the gate pier, while gate rust removal and corrosion prevention work can be performed below the gate pier / inside the gate chamber. Unless otherwise specified, the preferred and optional technical means disclosed in this utility model can be arbitrarily combined to form several different specific implementation methods when one preferred or optional technical means further defines another.

Claims

1. A steel protective platform for isolating the upper and lower spaces of the top of gate piers, comprising a plurality of gate piers, characterized in that... It also includes a planar steel beam structure, which is a rectangular grid structure composed of several horizontal beams and several vertical beams. The planar steel beam structure is fixedly erected on the top surface of some or all of the gate piers, and a platform base plate is provided on the planar steel beam structure.

2. The steel protective platform as described in claim 1, characterized in that... The front crossbeam is suspended in the air at the front of the gate pier top surface via the front end bracket, while the remaining crossbeams are fixedly installed on the top surface of the gate pier, thereby realizing the fixed installation of the planar steel structure on the top surface of part or all of the gate pier.

3. The steel protective platform as described in claim 2, characterized in that... The front-end support includes a support base plate and a cantilever. The support base plate is L-shaped and has a front side plate and an upper side plate. The front side plate of the support base plate is attached to the upper part of the front side of the corresponding gate pier and is fixed by anchor bolts set on the upper part of the front side of the gate pier. The upper side plate of the support base plate is attached to the front part of the top surface of the corresponding gate pier and is fixed by anchor bolts set on the front part of the top surface of the gate pier. The cantilever extends longitudinally forward and its rear end is fixedly connected to the front side surface of the front side plate of the support base plate. The front side crossbeam is erected on the top surface of the corresponding cantilever and is fixedly connected to the cantilever.

4. The steel protective platform as described in claim 1, characterized in that... The crossbeam is made of laterally extended I-beams.

5. The steel protective platform as described in claim 4, characterized in that... The connection between the I-beams used to form the crossbeam is achieved by using a clamping plate assembly. The clamping plate assembly consists of two clamping plates, which are respectively clamped on both sides of the web plates of the two interlocking I-beams. The two clamping plates and the web plates of the two I-beams are fastened together by multiple clamping plate bolts that pass through the clamping plates and the web plates of the I-beams.

6. The steel protective platform as described in claim 3, characterized in that... The cantilever is made of longitudinally extending I-beams.

7. The steel protective platform as described in claim 1, characterized in that... The longitudinal beams are made of longitudinally extending H-beams.

8. The steel protective platform as described in claim 7, characterized in that... The longitudinal beams are segmented, with the longitudinal beam between any two adjacent transverse beams forming a segment. The two ends of each segment are fixedly connected to the corresponding side of the corresponding transverse beam.

9. The steel protective platform as described in any one of claims 1-8, characterized in that... A number of purlins are provided between the platform base plate and the planar steel beam structure. The purlins extend longitudinally and are evenly spaced on the planar steel beam structure, and are fixedly connected to the crossbeams in the planar steel beam structure. The platform base plate is fixedly installed on the purlins.

10. The steel protective platform as described in claim 9, characterized in that... The platform base plate is composed of steel plates fully laid on the purlins, and the edges of the steel plates are intermittently welded to the corresponding purlins.

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