CN216566606U - A structure of a cantilevered anti-hanging steel truss - Google Patents

Abstract

The utility model provides a structure of an overhanging reverse-hanging steel truss, which comprises a steel structure frame, a construction operation platform and embedded bolts, wherein the steel structure frame is positioned above a capping beam, and the length of the steel structure frame is more than 5 times of the width of the capping beam; the construction operation platform is fixed above the steel structure frame, and the lower surface of the construction operation platform is fixedly connected with the upper surface of the steel structure frame; the embedded bolts are fixed on the bent cap and connected with the steel structure frame, and the steel structure frame is fixed on the bent cap by the embedded bolts. According to the structure of the overhanging reverse-hanging steel truss, the steel truss is adopted for overhanging reverse-hanging construction, so that the construction progress is not influenced, and the normal passage of a road below the construction can be ensured.

Description

A structure of a cantilevered anti-hanging steel truss

technical field

The utility model relates to the field of box girder construction, in particular to a structure of a cantilevered anti-suspended steel truss.

Background technique

In a special construction site, the construction of the box girder cannot affect the passage of vehicles directly under the construction structure, so it is urgent to develop a steel structure for vehicles passing below and construction above to meet the dual requirements of construction and normal traffic.

In view of this, it is necessary to develop a construction steel structure to create favorable conditions for the construction above the road.

Utility model content

The purpose of the utility model is to provide a cantilever-reverse-hoisting steel truss structure, which adopts the cantilever-reverse-hoisting construction of the steel truss, which not only does not affect the construction progress but also ensures the normal passage of the road below the construction.

The technical scheme that realizes the purpose of the present utility model is as follows:

A structure of a cantilevered anti-hanging steel truss, comprising:

The steel structure frame is located above the cover beam, and the length of the steel structure frame is greater than 5 times the width of the cover beam;

a construction work platform fixed above the steel structure frame, the lower surface of the construction work platform is fixedly connected with the upper surface of the steel structure frame;

Pre-embedded bolts fixed on the cover beam, the pre-embedded bolts are connected with the steel structure frame, and the pre-embedded bolts fix the steel structure frame on the cover beam.

As a further improvement of the present invention, it also includes a bottom mold and a side mold. The bottom mold and the side mold are both installed on the construction work platform, and the construction platform is further divided into a steel bar binding area.

As a further improvement of the present invention, the steel structure frame includes a first steel truss, a second steel truss, a third steel truss and a fourth steel truss, the first steel truss, the second steel truss The steel truss, the third steel truss and the fourth steel truss are spliced in sequence along their length direction, and the splicing seam of the second steel truss and the third steel truss is located on the cover beam in the middle.

In the embodiment of the present invention, it also includes a plurality of secondary beams arranged in parallel, each of the secondary beams is fixed on the upper surface of the steel structure frame, and the construction operation platform is located above the secondary beams.

In the embodiment of the present invention, a plurality of I-beam anti-suspenders are anchored at the bottom of the steel structure frame, the plurality of I-beam anti-suspenders are arranged in parallel, and the tops of the plurality of I-beam anti-suspenders are fixed on the lower surface of the steel structure frame;

The bottom end of each I-beam anti-suspender is fixed on the embedded bolt.

In the embodiment of the present invention, it also includes a plurality of transverse connecting rods, each of the transverse connecting rods is fixedly connected with one of the embedded bolts, the embedded bolts support the transverse connecting rods, and the work The bottom end of the steel anti-suspender is fixed on the different transverse connecting rods.

In the embodiment of the present utility model, the first steel truss, the second steel truss, the third steel truss and the fourth steel truss of the steel structure frame respectively fix at least one I-beam anti-suspender;

The first steel truss and the second steel truss of the steel structure frame share at least one transverse connecting rod; the third steel truss and the fourth steel truss of the steel structure frame share at least one transverse connecting rod.

Compared with the prior art, the beneficial effects of the present utility model are:

The structure of the utility model cantilevered and reversely hoisted a steel truss, which adopts the cantilevered and reversed hoisting of the steel truss for construction, which does not affect the construction progress and can ensure the normal passage of the road below the construction.

Description of drawings

Fig. 1 is the structural representation of a kind of cantilevered anti-hanging steel truss provided by the utility model;

Fig. 2 is the structural schematic diagram 1 of the steel structure frame;

Fig. 3 is the structural schematic diagram II of the steel structure frame;

Reference numerals, 100, steel structure frame; 200, construction work platform; 300, embedded bolts; 400, secondary beam; 500, I-beam reverse boom; 600, transverse connecting rod; 700, cover beam.

Detailed ways

The present invention will be described in detail below with reference to the various embodiments shown in the accompanying drawings, but it should be noted that these embodiments do not limit the present invention, and those of ordinary skill in the art can perform functions, methods, or structures according to these embodiments. Equivalent transformation or replacement of the above all belong to the protection scope of the present invention.

In the description of this embodiment, it should be understood that the terms "center", "portrait", "horizontal", "top", "bottom", "front", "rear", "left", "right", The orientation or positional relationship indicated by "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention The description is created and simplified rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the invention.

In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", etc., may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

The terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection, a detachable connection, or an integral connection; it may be a mechanical connection or an electrical connection; it may be a direct connection The connection can also be indirectly connected through an intermediate medium, and it can be the internal communication of two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood through specific situations.

Referring to FIG. 1 , an embodiment of the present invention provides a structure of a cantilevered and reverse-hanging steel truss, including: a steel structure frame 100 , a construction work platform 200 and embedded bolts 300 , and the steel structure frame 100 is located on the cover beam 700 . Above, the length of the steel structure frame 100 is greater than 5 times the width of the cover beam 700; the construction work platform 200 is fixed above the steel structure frame 100, and the lower surface of the construction work platform 200 is fixedly connected with the upper surface of the steel structure frame 100; embedded bolts 300 is fixed on the cover beam 700 , the embedded bolts 300 are connected with the steel structure frame 100 , and the embedded bolts 300 fix the steel structure frame 100 on the cover beam 700 .

The structure of a cantilevered and reverse-hanging steel truss according to the embodiment of the present utility model further includes a bottom form and a side form.

In the structure of a cantilevered and reverse-suspended steel truss according to an embodiment of the present invention, the steel structure frame 100 includes a first steel truss, a second steel truss, a third steel truss, and a fourth steel truss. The first steel truss The frame, the second steel truss, the third steel truss and the fourth steel truss are spliced in sequence along the length direction thereof, and the splicing seam of the second steel truss and the third steel truss is located in the middle of the cover beam 700 .

The structure of a cantilevered anti-hanging steel truss according to the embodiment of the present invention further includes a plurality of secondary beams 400 arranged in parallel, each secondary beam 400 is fixed on the upper surface of the steel structure frame 100, and the construction operation platform 200 is located on the secondary beam 400. Above beam 400.

In the structure of a cantilevered reverse-hanging steel truss according to the embodiment of the present invention, a plurality of I-beam reverse suspension rods 500 are anchored at the bottom of the steel structure frame 100, and the multiple I-beam reverse suspension rods 500 are arranged in parallel. The top ends of the steel anti-suspender rods 500 are fixed on the lower surface of the steel structure frame 100 ; the bottom ends of each I-beam anti-suspender rod 500 are fixed on the embedded bolts 300 .

The structure of a cantilevered anti-hanging steel truss according to the embodiment of the present invention further includes a plurality of transverse connecting rods 600, each of which is fixedly connected with a pre-embedded bolt 300, and the pre-embedded bolt 300 supports the transverse connecting rod 600 , the bottom ends of the I-beam anti-boom 500 are fixed on different transverse connecting rods 600 .

In the structure of the cantilevered and reverse-suspended steel truss according to the embodiment of the present invention, the first steel truss, the second steel truss, the third steel truss and the fourth steel truss of the steel structure frame 100 are each fixed at least one steel truss. The steel anti-suspender 500; the first steel truss and the second steel truss of the steel structure frame 100 share at least one transverse connecting rod 600; the third steel truss and the fourth steel truss of the steel structure frame 100 share at least one A transverse connecting rod 600.

The cantilevered anti-hanging steel truss of the embodiment of the utility model, AP130# block is 12m long, and adopts the same type of cover beam 700 bracket, which will affect the normal passage of the road below the 0# block and affect the progress of the project. After analysis and discussion with the design, it was decided to use the steel truss cantilever and reverse hoisting construction. The wind acts on all surfaces it passes over. It acts on the components of the scaffolding and temporary supports at maximum wind speed and working wind conditions. When there are practical imperfections such as lack of verticality, the additional horizontal force will become larger. In order to ensure the lateral stability of the temporary support, it should be designed to resist vertical loads and horizontal disturbance forces during each construction phase.

The structure of the cantilevered anti-hanging steel truss according to the embodiment of the present invention is to install a temporary working platform, install a support system and a formwork concrete pouring part. Installation and construction of the cantilevered anti-hanging steel truss: The cantilevered anti-hanging steel truss is fixed on the cover beam 700 that has been poured to reach the strength through embedded bolts 300, and the structural and construction loads are transmitted to the cover beam 700 through the steel truss and bolts. 1. When the cover beam 700 binds the steel bars, 48 high-strength bolts of M30 grade 8.8 are accurately fixed on the steel bars, and nuts and washers are added below to fix them by spot welding. 2. Treat the steel truss hoisting site in advance, and determine to use a 200t crane for hoisting according to the site conditions. After the steel truss is installed in place, lock the embedded bolts 300 to fix it immediately, and install the 305 I-beam pair immediately after the pair of steel trusses are installed in place. 3. After the four steel trusses are installed for two consecutive days, the installation of the bottom cantilever and anti-hoisting system is carried out. Use the steel truss to anchor the finish-rolled steel and pull down the two 350 I-beams to reverse the hanging, then install the secondary beam 400, lay the wooden square and wooden form on the secondary beam 400, and adjust the height to complete the bottom form laying and construction platform. 4. Using the existing ramp, adjust the position through the crane, install the side mold, and fix the side mold with the tie rod. 5. Bind the steel bars of the bottom web, install the inner mold, bind the steel bars of the top plate, and pour concrete. 6. After the concrete strength reaches the grade, remove the bottom formwork and side formwork step by step. 7. Rent a 200t crane to disassemble the four-piece steel truss. After completion, proceed to the next step of hanging basket construction and cast-in-place subsequent beam sections.

The series of detailed descriptions listed above are only specific descriptions for the feasible embodiments of the present invention, and they are not intended to limit the protection scope of the present invention. Any equivalents made without departing from the technical spirit of the present invention Embodiments or changes should all be included within the protection scope of the present invention.

It will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, and that the present invention can be implemented in other specific forms without departing from the spirit or essential characteristics of the present invention. Therefore, the embodiments are to be considered in all respects as exemplary and not restrictive, and the scope of the present invention is defined by the appended claims rather than the foregoing description, and it is therefore intended that the All changes within the meaning and range of the required equivalents are embraced within the present invention. Any reference signs in the claims shall not be construed as limiting the involved claim.

In addition, it should be understood that although this specification is described in terms of embodiments, not each embodiment only includes an independent technical solution, and this description in the specification is only for the sake of clarity, and those skilled in the art should take the specification as a whole , the technical solutions in each embodiment can also be appropriately combined to form other implementations that can be understood by those skilled in the art.

Claims (7)

1. a structure of an overhanging anti-hanging steel truss, is characterized in that, comprises: The steel structure frame is located above the cover beam, and the length of the steel structure frame is greater than 5 times the width of the cover beam; a construction work platform fixed above the steel structure frame, the lower surface of the construction work platform is fixedly connected with the upper surface of the steel structure frame; Pre-embedded bolts fixed on the cover beam, the pre-embedded bolts are connected with the steel structure frame, and the pre-embedded bolts fix the steel structure frame on the cover beam. 2. The structure of the cantilevered anti-hanging steel truss according to claim 1, characterized in that it further comprises a bottom form and a side form, and the bottom form and the side form are both installed on the construction work platform, and the construction Reinforcing bar binding areas are also demarcated on the work platform. 3. The structure of the cantilevered anti-suspended steel truss according to claim 1, wherein the steel structure frame comprises a first steel truss, a second steel truss, a third steel truss and a fourth steel truss The first steel truss, the second steel truss, the third steel truss and the fourth steel truss are sequentially spliced along their length direction, the second steel truss and the The splicing seam of the third steel truss is located in the middle of the cover beam. 4. The structure of the cantilevered anti-hanging steel truss according to claim 1, characterized in that, further comprising a plurality of secondary beams arranged in parallel, and each of the secondary beams is fixed on the upper surface of the steel structure frame, The construction work platform is located above the secondary beam. 5. The structure of the cantilevered anti-hanging steel truss according to claim 1, characterized in that, a plurality of I-beam anti-suspenders are anchored at the bottom of the steel structure frame, and a plurality of I-beam anti-suspenders are arranged in parallel , the tops of the multiple I-beam anti-suspenders are fixed on the lower surface of the steel structure frame; The bottom end of each I-beam anti-suspender is fixed on the embedded bolt. 6 . The structure of the cantilevered and reversed steel truss according to claim 5 , further comprising a plurality of transverse connecting rods, each of which is fixedly connected to one of the embedded bolts, and the pre-embedded bolts are fixedly connected. Buried bolts support the transverse connecting rods, and the bottom ends of the I-beam anti-hanging rods are fixed on different transverse connecting rods. 7. The structure of the cantilevered anti-suspended steel truss according to claim 1, wherein the first steel truss, the second steel truss, the third steel truss and the fourth steel truss of the steel structure frame Each frame is fixed with at least one I-beam anti-suspender; The first steel truss and the second steel truss of the steel structure frame share at least one transverse connecting rod; the third steel truss and the fourth steel truss of the steel structure frame share at least one transverse connecting rod.

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