CN211818113U

CN211818113U - Steel structure supporting system of flying ladder

Info

Publication number: CN211818113U
Application number: CN202020323690.5U
Authority: CN
Inventors: 何洋; 郭家宁; 柴成源
Original assignee: China Railway Construction Group Co Ltd; Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
Current assignee: China Railway Construction Group Co Ltd; Beijing Engineering Co Ltd of China Railway Construction Group Co Ltd
Priority date: 2020-03-16
Filing date: 2020-03-16
Publication date: 2020-10-30
Anticipated expiration: 2030-03-16

Abstract

The utility model discloses a flying ladder steel construction support system, support, landing leg, first hoist and mount point, upper segment case roof beam, second hoist and mount point, third hoist and mount point, hypomere case roof beam and connection girder steel including pergola, supporting platform, support column, case roof beam. The utility model has the advantages that: the BIM technology is used for carrying out three-dimensional simulation installation on installation construction, the quality control difficulty is found out, the construction quality of the node is ensured, the node is hoisted in sections by using a crane, a high and large operating frame is avoided being erected, the use and the labor consumption of turnover materials are greatly reduced, the construction cost is saved, the construction operation is concentrated, the potential safety hazard points are few, the centralized management of a site is facilitated, the mechanical subsection processing of a factory is realized, the site welding amount is reduced, the generation of waste materials, light pollution and the like is avoided, the BIM technology is used for simulating installation, the technical and quality problems are prevented in advance, and the generation of site problems is reduced.

Description

Steel structure supporting system of flying ladder

Technical Field

The utility model relates to a support system specifically is an all-terrain ladder steel construction support system, belongs to building construction technical field.

Background

Along with the improvement of economic level of people, a large business super is built more and more in each city, a large-scale commercial supermarket generally sets a large-span escalator in an atrium in a commercial body in order to obtain better space effect, the escalator can occupy the space under the escalator as little as possible, the novelty of the escalator structure and the difference of visual perception of people are strived for, and in order to achieve the effect, a steel beam box supported on the structure by supports at two ends in the atrium of the commercial complex is adopted as a support system of the escalator and a framework thereof to support the operation of the flying ladder.

Although the existing steel structure supporting system of the flying ladder is widely used, the problems still exist, firstly, the existing steel structure supporting system of the flying ladder is high in manufacturing cost and low in safety coefficient in hoisting and subsequent fixing installation, secondly, the existing steel structure supporting system of the flying ladder is inconvenient to control in construction quality and long in construction period, a plurality of supporting systems are high operation frames, operation time of turnover material boxes is greatly wasted, and thirdly, the existing supporting system needs to be installed and arranged in different places, so that pollution is serious.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a flying ladder steel construction support system just in order to solve above-mentioned problem.

The utility model discloses a following technical scheme realizes above-mentioned purpose: a steel structure supporting system of a flying ladder comprises a flower stand, a supporting platform, supporting columns, box girder supports, supporting legs, first hoisting points, an upper section box girder, a second hoisting point, a third hoisting point, a lower section box girder and connecting steel girders; the bottom end of the flower stand is arranged on the upper surface of a supporting platform, the supporting platform is fixed between the flower stand and the supporting columns and is welded with the flower stand and the supporting columns, the supporting columns are four layers, steel column supporting column assembly and installation are carried out on site in four times, steel columns are installed in sections, steel beams and inclined struts are installed and connected after the steel columns are installed, hoisting is firstly carried out in the middle and then is carried out around, a hoisted component forms a standard rigid frame in time and is extended outwards according to the axis, the box girder support consists of an upper section box girder and a lower section box girder and is fixed on supporting legs, the supporting legs are installed below the outer contour of the box girder support, a first hoisting point is arranged on the side contour of the upper section box girder, the upper section box girder is connected with the lower section box girder and is fixed on the supporting legs, a second hoisting point and a third hoisting point are respectively positioned at the connecting positions of the supporting legs and the upper section box girder, and the lower, and fixed on the bracing, the connection girder steel welds between each support column.

Preferably, in order to carry out three-dimensional simulation installation on installation construction by using a BIM technology, find out quality control difficulties, ensure node construction quality, ensure the smoothness of the connection between the flower stand and the supporting platform in the horizontal direction and facilitate assembly, the flower stand is assembled and positioned according to the snapping line control group of the computer lofting size, the flower stand is assembled on the ground according to the node diagram, then a 500t crane is used for matching with a 25t crane for hoisting, the position of the joint is strictly controlled in the hoisting process for positioning and smoothness, the joint is connected in advance by using a connecting plate, welding is carried out after the joint is adjusted in place, a level gauge is used for observing in the welding process, and the smoothness of the flower stand is checked.

Preferably, in order to guarantee the stability of being connected between support column and the pergola to guarantee supporting platform's level, make this connection position more stable, use theodolite and spirit level in supporting platform and the support column welding process in time to inspect, major control elevation, levelness, support frame angle, treat to connect the girder steel welding after the support frame installation finishes.

Preferably, in order to improve the factor of safety of this support frame, guarantee that its bottom is stable, and it adopts segmentation hoist and mount with other subassemblies, has avoided setting up tall and big handling frame, by a wide margin reduced the use and the artifical consumption of turnover material, practiced thrift construction cost, the support column is 84 with connection girder steel horizontal plane angle, accomplish the location installation and the support column hoist and mount back of taking one's place at the bottom layer post, the initial support column of beginning is first relatively, and several layers need carry out the elevation correction when its installation on it.

Preferably, in order to avoid the great stress deformation of construction welding seam position appearance in hoist and mount and later stage use, influence the structural safety, and reduce the time of equipment, improve work efficiency, upper segment case roof beam and hypomere case roof beam are constituteed the case roof beam and are supported, and the upper segment is accomplished by two sections case roof beam equipment, and the hypomere is accomplished by three sections case roof beam equipment, and flying sky ladder supports case roof beam welding position and is striding in 1/3 departments, and upper segment case roof beam and hypomere case roof beam install simultaneously.

Preferably, in order to prevent the support part and the connection part of the upper section box girder and the lower section box girder from slipping and effectively improve the safety performance, the lower end of the landing leg is fixed on the landing leg steel plate, and the diagonal brace and the landing leg of the lower section box girder are fixed through anti-slipping bolts.

The utility model has the advantages that: the steel structure supporting system of the flying ladder is reasonable in design, a flower stand is assembled and positioned according to a snapping line control group according to a computer lofting size, the flower stand is assembled on the ground according to a node diagram, then a 500t crane is matched with a 25t crane for hoisting, the joint position is strictly controlled and positioned and leveled in the hoisting process, the flower stand is connected in advance by a connecting plate, welding is carried out after the adjustment in place, a leveling instrument is used for observation in the welding process to check the flatness of the flower stand, the BIM technology is used for carrying out three-dimensional simulation installation on installation and construction to find out quality control difficulties, the node construction quality is ensured, the flatness in the horizontal direction of connection between the flower stand and the supporting platform is ensured, the assembly is convenient, a theodolite and the leveling instrument are used for timely checking in the welding process of the supporting platform and the supporting column, the elevation, the levelness, the connection between the supporting columns and the flower stands is ensured to be stable, the level of the supporting platform is ensured, the connection position is more stable, the angle between the supporting columns and the horizontal plane of the connecting steel beam is 84 degrees, after the positioning installation of the bottom layer column and the lifting and positioning of the supporting columns are completed, the initial comparison of the supporting columns is started, the elevation correction is needed when the upper layers are installed, the safety factor of the supporting frame is improved, the bottom stability of the supporting frame is ensured, the supporting frame and other components are lifted in a subsection mode, the erection of a tall and large operation frame is avoided, the use and labor consumption of turnover materials are greatly reduced, the construction cost is saved, the box girder support is formed by the upper section box girder and the lower section box girder, the upper section is assembled by two sections of box girders, the lower section is assembled by three sections of box girders, the welding position of the flying ladder supporting box girder is in the midspan 1/3, the upper section box girder and the lower section box girder are, the structure safety is influenced, the assembling time is shortened, the working efficiency is improved, the lower end of the supporting leg is fixed on the supporting leg steel plate, the inclined strut and the supporting leg of the lower section box girder are fixed through the anti-sliding bolt, the supporting part and the connecting part of the upper section box girder and the lower section box girder are prevented from sliding, and the safety performance is effectively improved.

Drawings

FIG. 1 is a schematic structural view of the present invention;

fig. 2 is the structural schematic diagram of the box girder of the present invention.

In the figure: 1. flower stand, 2, supporting platform, 3, support column, 4, case roof beam support, 5, landing leg, 6, first hoist and mount point, 7, upper segment case roof beam, 8, second hoist and mount point, 9, third hoist and mount point, 10, lower section case roof beam and 11, connection girder steel.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-2, a steel structure supporting system for a flying ladder comprises a flower stand 1, a supporting platform 2, a supporting column 3, a box girder support 4, a supporting leg 5, a first hoisting point 6, an upper section box girder 7, a second hoisting point 8, a third hoisting point 9, a lower section box girder 10 and a connecting steel girder 11; the bottom end of the flower stand 1 is arranged on the upper surface of a supporting platform 2, the supporting platform 2 is fixed between the flower stand 1 and a supporting column 3 and is welded with the flower stand 1 and the supporting column 3, the supporting column 3 is four layers, steel column supporting column assembling and installing are carried out on site four times, steel columns are installed in sections, a connecting steel beam 11 and an inclined strut are installed after the steel columns are installed, hoisting is carried out firstly, the middle part and then the periphery are expanded, a hoisting component forms a standard rigid frame in time and is expanded outwards according to the axis, a box girder support 4 consists of an upper section box girder 7 and a lower section box girder 10 and is fixed on a supporting leg 5, the supporting leg 5 is arranged below the outer contour of the box girder support 4, a first hoisting point 6 is arranged on the side contour of the upper section box girder 7, the upper section box girder 7 is connected with the lower section box girder 10 and is fixed on the supporting leg 5, a second hoisting point 8 and a third hoisting point 9 are respectively positioned at the joint of, the lower section box girder 10 is arranged below the upper section box girder 7 and fixed on the inclined strut, and the connecting steel girder 11 is welded among the support columns 3.

The pergola 1 carries out the assembly location of spring line control according to the computer lofting size, assemble pergola 1 on the ground according to the node map, then use 500t crane cooperation 25t crane to hoist, the strict control connects the position location in the hoist and mount process, it is level, connect with the connecting plate in advance, after adjusting to take one's place, weld, use the spirit level to survey in the welding process, check pergola 1 roughness, utilize BIM technique to carry out the three-dimensional simulation installation to the construction installation, find out the quality control difficult point, ensure the node construction quality, ensure the level in the horizontal direction of being connected between pergola 1 and the supporting platform 2, be convenient for assemble, use theodolite and spirit level to check in time in the supporting platform 2 and the support column 3 welding process, key control elevation, levelness, support frame angle, after the support frame finishes installing, connect girder steel 11 to weld, the stability of connection between the supporting column 3 and the flower stand 1 is ensured, the level of the supporting platform 2 is ensured, the connection position is more stable, the horizontal plane angle of the supporting column 3 and the connecting steel beam 11 is 84 degrees, after the bottom layer column is positioned and installed and the supporting column 3 is hoisted in place, the supporting column 3 is started to be initially compared, elevation correction is needed when the upper layers are installed, the safety factor of the supporting frame is improved, the bottom of the supporting frame is ensured to be stable, and the supporting frame and other components are hoisted in sections, the erection of a tall operation frame is avoided, the use and labor consumption of turnover materials are greatly reduced, the construction cost is saved, the box girder support 4 is formed by the upper section box girder 7 and the lower section box girder 10, the upper section is assembled by two sections of box girders, the lower section is assembled by three sections of box girders, the welding position of the flying ladder supporting box girder is at 1/3 in the midspan, and the upper section box, avoid hoist and mount and later stage use in the construction welding seam position great stress deformation appear, influence structure safety, and reduce the time of equipment, improve work efficiency, 5 lower extremes of landing leg are fixed on the landing leg steel sheet, and the bracing and the landing leg 5 of hypomere case roof beam 10 are fixed through anti-skidding bolt, prevent that the support position and the connection position of upper segment case roof beam 7 and hypomere case roof beam 10 from taking place to slide, effectively improve the security performance.

The working principle is as follows: when the steel structure supporting system of the flying ladder is used, BIM construction is deepened, the position, the size and the escalator foundation pit elevation of a pre-embedded steel structure base are reserved in a field structure, a flying ladder BIM model is established according to the positioning of a flying ladder supporting frame, the flying ladder supporting frame elevation and the field structure size, the flying ladder components are assembled and analyzed through the BIM model, a construction scheme is determined, then the components are split and processed, the components are processed outside the field according to the decomposed components, the field problem is considered, all numbered components are classified into small sections in a processing plant and transported to a construction field, due to the fact that the large number of the components is large, in order to avoid secondary transportation, the materials enter the field and are grouped into the field strictly according to the construction progress, the truss is assembled smoothly, then the flower stand 1, the supporting platform 2 and the supporting column 3 are installed firstly, and finally the box girder is assembled.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a flying ladder steel construction support system which characterized in that: the flower shelf comprises a flower shelf (1), a supporting platform (2), a supporting column (3), a box girder support (4), a supporting leg (5), a first hoisting point (6), an upper section box girder (7), a second hoisting point (8), a third hoisting point (9), a lower section box girder (10) and a connecting steel girder (11); the bottom end of the flower shelf (1) is arranged on the upper surface of a supporting platform (2), the supporting platform (2) is fixed between the flower shelf (1) and a supporting column (3) and is welded with the flower shelf and the supporting column, the supporting column (3) is four layers, steel column supporting column assembling and installing are carried out on site four times, a steel column is installed in sections, a connecting steel beam (11) and an inclined strut are installed after the steel column is installed, hoisting is carried out firstly from the middle and then is expanded all around, a hoisted component forms a standard rigid frame in time and is expanded outwards according to the axis, a box girder support (4) consists of an upper box girder (7) and a lower box girder (10) and is fixed on a supporting leg (5), the supporting leg (5) is arranged below the outer contour of the box girder support (4), a first hoisting point (6) is arranged on the side contour of the upper box girder (7), the upper box girder (7) is connected with the lower box girder (10), and the lifting device is fixed on the supporting legs (5), the second lifting point (8) and the third lifting point (9) are respectively positioned at the joint of the supporting legs (5) and the upper section box girder (7), the lower section box girder (10) is installed below the upper section box girder (7) and is fixed on the inclined strut, and the connecting steel girder (11) is welded among the supporting columns (3).

2. The flying ladder steel structure support system of claim 1, wherein: use theodolite and spirit level in supporting platform (2) and support column (3) welding process in time to inspect, key control elevation, levelness, support frame angle wait to connect girder steel (11) welding after the support frame installation finishes.

3. The flying ladder steel structure support system of claim 1, wherein: the horizontal plane angle between the support column (3) and the connecting steel beam (11) is 84 degrees, after the bottom layer column is positioned and installed and the support column (3) is hoisted in place, the support column (3) is initially compared, and the elevations of the upper layers of the support column are required to be corrected during installation.

4. The flying ladder steel structure support system of claim 1, wherein: the box girder support (4) is formed by the upper section box girder (7) and the lower section box girder (10), the upper section is assembled by two sections of box girders, the lower section is assembled by three sections of box girders, the welding position of the flying ladder support box girder is at the midspan 1/3, and the upper section box girder (7) and the lower section box girder (10) are installed simultaneously.

5. The flying ladder steel structure support system of claim 1, wherein: the lower ends of the supporting legs (5) are fixed on supporting leg steel plates, and the inclined struts of the lower section box girder (10) and the supporting legs (5) are fixed through anti-sliding bolts.