CN211736290U - A kind of shell section large-span overhanging eaves high-altitude erecting formwork work platform - Google Patents

Abstract

The utility model discloses a high-altitude building formwork working platform with a large-span overhanging eaves of a shell section, which comprises a plurality of cantilevered steel beams located on a layer below the overhanging eaves to be constructed, a section of the cantilevered steel beams protruding from a structural beam plate, a plurality of cantilevered steel beams The protruding section of the cantilevered steel beam constitutes a cantilever support, and the overhanging formwork is erected on the cantilever support; a column is provided above each of the cantilevered steel beams and the anchoring position of the structural beam plate, and the column is vertical On the cantilevered steel beam, the bottom of the column is fixed on the cantilevered steel beam, the top of the column is connected with at least one steel wire cable, and the other end of the steel cable is tied to the cantilevered steel beam. A supporting steel rod is also fixed at the bottom of each extending section of the cantilevered steel beam, and the other end of the supporting steel rod is fixed on the structural beam plate on the lower layer of the cantilevered layer. The utility model does not rely on the beams and slabs of the superstructure, and can still ensure the safety of the cantilever, shorten the construction period and save the construction cost.

Description

A kind of shell section large-span overhanging eaves high-altitude erecting formwork work platform

technical field

The utility model relates to the technical field of building construction, in particular to a large-span overhanging formwork erecting platform.

Background technique

In recent years, with the rapid economic development, the urbanization process has accelerated. We are facing the pressure of growing urban population. In order to alleviate the crowding of urban space, three-dimensional urban space development has become the mainstream of the construction industry, and more and more high-rise and super high-rise buildings are erected in cities.

For high-rise and super-high-rise buildings, using traditional scaffolding to build construction platforms from the ground up layer by layer will seriously affect the construction efficiency, and from the perspective of economic benefits and construction safety, this construction method also has major shortcomings.

In order to solve this problem, a kind of cantilever scaffolding has appeared in the construction of high-rise buildings. Cantilever beams are extended from the completed structure, and scaffolding is erected upwards from the cantilever beams. However, this cantilever method is completely stressed by the cantilever beam, and the cantilever beam then transfers the load to the structural beam plate. Therefore, for the cantilever beam and the structural beam plate, the requirements for the combination of the two are very high, and many construction The stability of the force cannot be ensured at the scene, so there is a great potential safety hazard. Similar problems are also raised in the installation structure and construction method of Yizhong cantilevered formwork platform disclosed in CN104389419A. In this patent document, the method of pulling up and supporting down is adopted, and supporting inclined rods are used at the lower part of the cantilever beam. For support, the upper part is tied with a cable, and the other end of the cable is tied in the structural beam plate of the upper layer, so as to ensure the stability of the entire cantilever beam.

However, for the unfinished construction of the upper layer or the construction of the overhanging eaves on the top floor, the above problems will still occur due to the absence of the superstructure beams and slabs. Therefore, it is necessary to further improve the above structure and construction method. In addition, in order to ensure the waterproof effect and stable stress condition of high-rise overhangs, the main part must be poured as a whole, which also determines that the cantilevered scaffolding cannot be supported by the structural beams of the roof layer.

SUMMARY OF THE INVENTION

Purpose of the invention: The purpose of this utility model is to aim at the deficiencies of the prior art, and to provide a high-altitude formwork operation platform for the construction of large-span overhanging eaves of shell section as a stable support.

Technical scheme: the shell section large-span overhanging eaves high-altitude erecting formwork work platform of the utility model includes a number of cantilevered steel beams located on the first floor of the overhanging eaves to be constructed, and the cantilevered steel beams are anchored on the overhanging eaves to be constructed. On the structural beam plate of the next layer, this layer is used as a cantilever layer. One section of the cantilevered steel beam extends out of the structural beam plate, and the projecting sections of several cantilevered steel beams form a cantilever support. on the overhanging support;

A column is provided above each of the cantilevered steel beams and the anchoring positions of the structural beam plates, the column is perpendicular to the cantilevered steel beam, the bottom of the column is fixed on the cantilevered steel beam, and the top of the column is connected with a At least one steel wire cable, the other end of the steel wire cable is tied on the projecting section of the cantilevered steel beam;

An oblique supporting steel rod is also fixed at the bottom of each overhanging section of the cantilevered steel beam, and the other end of the supporting steel rod is fixed on the structural edge beam on the lower layer of the cantilevered layer.

A further preferred technical solution of the present invention is that the other section of the cantilevered steel beam is used as a fixed section and is anchored on the floor of the cantilevered floor.

Preferably, at least one steel wire cable is connected to both sides of the top of the column, and the other ends of the steel wire cable are respectively tied to the projecting section and the fixed section of the cantilevered steel beam. The tie system and the cantilevered steel beam form a stable triangular support structure to improve the stability of the structure.

Preferably, the upright column and the outgoing section of the cantilevered steel beam are tied by two wire cables, and the two wire cables are respectively connected to the ends and the middle of the outgoing section of the cantilevered steel beam.

Preferably, each wire cable is provided with a tight rope bolt to adjust the tightness of the wire cable.

Preferably, a positioning lug is provided at the bottom of the projecting section of the cantilevered steel beam close to the side beam of the cantilevered layer, and a circular hole is opened in the middle of the positioning lug.

Preferably, a lug plate is provided below the end of the overhanging section of the cantilevered steel beam, and a circular hole is opened in the middle, and the lug plate and the positioning lug plate are hung with an anti-falling net. The positioning lug plate can not only locate the anchoring position of the cantilevered steel beam and the structural beam plate, but also be used for suspending the anti-falling net.

Preferably, the cantilever support is also provided with protective scaffolding, the protective scaffolding is erected on the end of the overhanging section of the cantilevered steel beam, and the top height of the protective scaffolding is higher than the eaves to be constructed.

Preferably, each cantilevered steel beam is connected with the adjacent cantilevered steel beam through a horizontal connecting rod.

Preferably, each of the uprights is connected with the adjacent uprights through horizontal links.

Beneficial effect: In this utility model, a column is arranged above the anchoring position of the cantilevered steel beam and the structural beam plate, and the column is used as the connection point of the pull-up system of the cantilevered steel beam. , or when the construction of large-span overhangs cannot connect the tie system with the superstructure beams and slabs, the safety of the cantilever can still be guaranteed, the construction period is shortened, and the construction cost is saved.

Description of drawings

Fig. 1 is the structural representation of the working platform of the present utility model;

In the figure, 1- cantilevered steel beam, 2- formwork frame, 3- protective scaffolding, 4- column, 5- steel wire cable, 6- supporting steel rod, 7- positioning lug plate, 8- anti-fall net.

Detailed ways

The technical solutions of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

Embodiment: a shell section large-span overhanging eaves high-altitude erecting formwork operation platform, including several cantilevered steel beams 1 located on the first floor under the overhanging eaves to be constructed, and the cantilevered steel beams 1 are anchored on the first floor under the overhanging eaves to be constructed One section of the cantilevered steel beam 1 protrudes from the structural beam slab as a protruding section, and the other section serves as a fixed section, which is anchored on the floor of the cantilevered layer. The protruding section of each cantilevered steel beam 1 is connected with the adjacent cantilevered steel beam 1 through horizontal connecting rods. The outriggers of several cantilevered steel beams 1 form an overhanging support, the overhanging formwork 2 and the protective scaffolding 3 are erected on the overhanging support, and the protective scaffolding 3 is erected at the end of the outstretched section of the overhanging steel beam 1. , the top height of the protective scaffold 3 is higher than the eaves to be constructed.

Above each cantilevered steel beam 1 and the anchoring position of the structural beam plate is provided a column 4 , the column 4 is perpendicular to the cantilevered steel beam 1 , and the bottom of the column 4 is fixed on the cantilevered steel beam 1 . The top of the column 4 is connected with three steel wire cables 5, one steel wire cable 5 is tied on the fixed section of the cantilevered steel beam 1, and the other two steel wire cables 5 are respectively tied at the outgoing section of the cantilevered steel beam 1. middle and ends. Each wire rope 5 is provided with a rope tightening bolt to adjust the tightness of the wire rope 5 . Each column 4 is connected with the adjacent column 4 through a horizontal link.

An oblique supporting steel rod 6 is also fixed at the bottom of the protruding section of each cantilevered steel beam 1, and the other end of the supporting steel rod 6 is fixed on the structural edge beam on the lower layer of the cantilevered layer.

The bottom of the projecting section of the cantilevered steel beam 1 is provided with two positioning lugs 7, one of which is located at the end of the projecting section of the cantilevered steel beam 1, and the other positioning lug 7 is located at the end of the projecting section of the cantilevered steel beam 1. Outside of the anchorage location to the structural beam slab. An anti-falling net 8 is hung on the positioning lug plate 7 .

As mentioned above, although the present invention has been shown and described with reference to specific preferred embodiments, this should not be construed as limiting the invention itself. Various changes in form and details may be made therein without departing from the spirit and scope of the present invention as defined by the appended claims.

Claims (10)

1. a shell section large-span overhanging eaves high-altitude erecting formwork operation platform, is characterized in that, comprises several cantilevered steel beams positioned at the next floor of the overhanging eaves to be constructed, and the cantilevered steel beams are anchored at the overhanging eaves to be constructed. On the structural beam plate of the next layer, this layer is used as a cantilever layer. One section of the cantilevered steel beam extends out of the structural beam plate, and the projecting sections of several cantilevered steel beams form a cantilever support. on the overhanging support; A column is provided above each of the cantilevered steel beams and the anchoring positions of the structural beam plates, the column is perpendicular to the cantilevered steel beam, the bottom of the column is fixed on the cantilevered steel beam, and the top of the column is connected with a At least one steel wire cable, the other end of the steel wire cable is tied on the projecting section of the cantilevered steel beam; An oblique supporting steel rod is also fixed at the bottom of each overhanging section of the cantilevered steel beam, and the other end of the supporting steel rod is fixed on the structural edge beam on the lower layer of the cantilevered layer. 2 . The large-span overhanging eaves high-altitude building formwork work platform according to claim 1 , wherein the other section of the cantilevered steel beam is used as a fixed section and is anchored on the floor of the cantilevered floor. 3 . 3. The shell section large-span overhanging eaves high-altitude erecting formwork working platform according to claim 2 is characterized in that, at least one wire cable is connected to each of the top two sides of the column, and the other end of the wire cable is respectively pulled Knot on the projecting section and the fixed section of the cantilevered steel beam. 4. The shell section large-span overhanging eaves high-altitude erecting formwork work platform according to claim 3, is characterized in that, between the said upright column and the projecting section of the cantilevered steel beam, two steel wire cables are connected, and the two The steel wire cables are respectively connected to the ends and the middle of the projecting section of the cantilevered steel beams. 5. The large-span overhanging eaves high-altitude construction work platform for shell section according to any one of claims 1 to 4, is characterized in that, each described wire cable is provided with a tightening rope bolt to adjust the wire The tension of the cable. 6. The shell section large-span overhanging eaves high-altitude erecting formwork work platform according to claim 1 is characterized in that, a positioning lug is provided at the bottom of the overhanging section of the cantilevered steel beam close to the cantilevered layer side beam A circular hole is opened in the middle of the positioning lug. 7. The shell section large-span overhanging eaves high-altitude erecting formwork working platform according to claim 6 is characterized in that, a lug plate is provided below the end of the overhanging section of the cantilevered steel beam, and there is an opening in the middle. A round hole, the lug plate and the positioning lug plate are hung with an anti-falling net. 8. The shell section large-span overhanging eaves high-altitude erecting formwork work platform according to claim 1, is characterized in that, on the described overhanging support, also erects protective scaffolding, and the protective scaffolding is erected on the overhanging section of the overhanging steel beam. At the end, the top height of the protective scaffolding is higher than the eaves to be constructed. 9 . The large-span overhanging eaves high-altitude building formwork work platform according to claim 1 , wherein each cantilevered steel beam is connected to an adjacent cantilevered steel beam through a horizontal connecting rod. 10 . 10 . The large-span overhanging eaves high-altitude construction formwork work platform according to claim 1 , wherein each of the uprights is connected to the adjacent uprights by horizontal connecting rods. 11 .

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