CN110203856A - A kind of hydraulic device of pair of supporting frame with steel structure unloading - Google Patents

Abstract

The invention relates to the technical field of hydraulic devices, in particular to a hydraulic device for unloading a steel structure support frame. The hydraulic device includes: a beam, a longitudinal beam, a hydraulic jack, a corbel, an adjusting plate, a top brace, a triangular stiffening plate and a stiffening plate, At least three longitudinal beams are laid on the upper end of the beam; and a support is installed in the middle of the upper end of the longitudinal beam, and at least five adjustment plates are laid between the upper and lower parts of the support. When there is a load on the top, the load on the top is transmitted to the longitudinal beam, and then the load will be transmitted to the beam through the longitudinal beam, so that there is enough work space to ensure the stability and safety of the support unloading, so that it can be used according to the needs of the site or The structural design requires simultaneous unloading of multiple support frames to control the downward deflection of the main structure, which solves the problem that it is difficult to unload the temporary support system smoothly after the high-altitude assembly of the long-span steel structure is completed.

Description

A hydraulic device for unloading steel structure support frame

technical field

The invention relates to the technical field of hydraulic devices, in particular to a hydraulic device for unloading a steel structure support frame.

Background technique

With the rapid development of my country's national economy, the development of urban construction is also increasing rapidly, and people's living standards are constantly improving. On this basis, people have put forward higher requirements for buildings, not only to meet the basic functions of life, work, and residence. It also pays more attention to the appearance, shape and compatibility with the surrounding environment of the building. In order to meet various requirements, the building structure becomes more and more complex. As the building forms become more and more diverse, high-altitude and long-span steel structures are becoming more and more popular.

With the continuous emergence of various large-span steel structure buildings, various installation techniques and construction methods have also developed. Due to the limited construction site, the most commonly used method is to erect temporary support frames and assemble at high altitude. , this method needs to remove the temporary support frame after the long-span steel structure reaches the strength required by the design. The frame must be unloaded before dismantling, and the structural deformation is controlled synchronously through an appropriate unloading device, so that the deformation and stress change are gentle, and the safety of the support and structure is guaranteed.

Contents of the invention

(1) Solved technical problems

Aiming at the deficiencies of the prior art, the present invention provides a hydraulic device for unloading the steel structure support frame, which has the advantages of smoothly unloading the temporary support system after the high-altitude assembly of the large-span steel structure is completed, and solves the problem of unloading the large-span steel structure. After the high-altitude assembly of the span steel structure is completed, it is difficult to unload the temporary support system smoothly.

(2) Technical solutions

In order to achieve the above-mentioned purposes of unloading the temporary support system of the long-span steel structure after the high-altitude assembly is completed, the present invention provides the following technical solution: a hydraulic device for unloading the steel structure support frame, the hydraulic device includes: a beam , longitudinal beams, hydraulic jacks, corbels, adjusting plates, top bracing, triangular stiffening plates and stiffening plates, at least three longitudinal beams are laid on the upper end of the beam; There are at least five adjustment plates between them; the left and right ends of the top brace in the upper part are welded with corbels and triangular stiffeners, and the triangular stiffeners are located at the upper end of the corbels and welded with the corbels, and the left and right sides Two hydraulic jacks are arranged at the lower end of the corbel and at the upper end of the beam, and a stiffening plate is welded at the web of the corbel directly above the hydraulic jack.

As a further advantage, there are two beams in total, and the beams are placed on the columns of the support system, and the beams are made of I-beams.

As a further advantage, the longitudinal girder adopts combined I-beams.

As a further advantage, the top support is divided into upper and lower parts.

A further advantage is that the upper half of the top brace, the corbel, the triangular stiffener and the stiffener are manufactured in a factory as a whole.

As a further advantage, the corbel is made of I-beam.

(3) Beneficial effects

Compared with the prior art, the present invention provides a hydraulic device for unloading the steel structure support frame, which has the following beneficial effects:

1. This kind of hydraulic device for unloading the steel structure support frame, when there is a load on the top, transmits the load on the top to the longitudinal beam, and then the load will be transmitted to the cross beam through the longitudinal beam, so that there is enough work space to ensure the support The stability and safety of unloading, so that multiple support frames can be unloaded simultaneously according to site needs or structural design requirements, so as to control the downward deflection deformation of the main structure;

2. Through the adjustment plate between the top supports, when the adjustment plates are pulled out one by one from between the top supports, it can be guaranteed that each level can be unloaded according to the predetermined drop release amount, avoiding the need for on-site flame cutting Construction, resulting in the disadvantages of excessive damage to the surface paint of components and the need for a large number of short columns and welding operators, resulting in the disadvantages of high resource investment, so as to achieve a harmonious relationship between unloading efficiency, resource consumption, and environmental protection, and strive for less material consumption. Recycled and used many times, embodying the concept of "low carbon" and green construction;

3. After the top support and the adjustment plate are separated by the hydraulic jack, the top load can be dispersed. In addition, during the jacking and falling process, the hydraulic strength, jacking height and oil return speed of the two hydraulic jacks are synchronously controlled. , to ensure the stability of the structure, so as to achieve good synchronization in the unloading process by manually controlling the hydraulic pressure, oil return speed, etc., and when the corbel is used as the force transmission structure of the hydraulic jack lifting operation, the stiffening plate can be used to reduce cattle Local deformation of the legs, followed by triangular stiffeners can increase the overall stiffness.

Description of drawings

Fig. 1 is the overall schematic diagram of structure of the present invention;

Fig. 2 is the schematic diagram of the overall front view of the structure of the present invention;

Fig. 3 is a schematic side view of the overall structure of the present invention.

In the figure: 1-beam; 2-longitudinal beam; 3-hydraulic jack; 4-corbel; 5-adjusting plate;

Detailed ways

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the specific implementation manners of the present invention will be described below with reference to the accompanying drawings. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention, and those skilled in the art can obtain other accompanying drawings based on these drawings and obtain other implementations.

In Embodiment 1, as shown in Figures 1-3, this implementation discloses a hydraulic device for unloading a steel structure support frame. The hydraulic device includes: a beam 1, a longitudinal beam 2, a hydraulic jack 3, a corbel 4, Adjusting plate 5, top support 6, triangular stiffening plate 7 and stiffening plate 8, at least three longitudinal beams 2 are laid on the upper end of the crossbeam 1, through the crossbeam 1 and the longitudinal beam 2, because there are two crossbeams 1, and the crossbeam 1 is placed on the support On the column of the system, and the beam 1 is made of I-beam, and the longitudinal beam 2 is made of combined I-beam, so that when there is a load on the top, the load on the top is transmitted to the longitudinal beam 2, and then the load will be transmitted through the longitudinal beam 2 To the beam 1, there is enough work space to ensure the stability and safety of support unloading, so that multiple support frames can be unloaded simultaneously according to site needs or structural design requirements, so as to control the downward deflection deformation of the main structure;

In the second embodiment, as shown in Figures 1-3, on the basis of the first embodiment, a top brace 6 is installed in the middle of the upper end of the longitudinal beam 2, and the top brace 6 is divided into upper and lower parts, and the upper and lower parts of the top brace 6. Pave at least five adjustment plates 5 between the top supports 6. Through the adjustment plates 5 between the top supports 6, when the adjustment plates 5 are pulled out from between the top supports 6 one by one, it is guaranteed to be able to perform according to the predetermined drop release amount. The unloading of each level avoids the need for on-site flame cutting construction, resulting in excessive damage to the component finish and the need for a large number of short columns and welding operators, resulting in high resource investment, thus achieving unloading efficiency and resource consumption. Harmonious relationship with environmental protection, etc., strive for less material consumption, can be recycled for many times, reflecting the concept of "low carbon" and green construction;

In embodiment three, as shown in Figure 1-3, on the basis of embodiment one or two, the left and right ends of the top brace 6 in the upper half are welded with corbels 4 and triangular stiffeners 7, and the triangular stiffeners 7. The upper end of the corbel 4 is welded with the corbel 4, and the lower ends of the corbel 4 on the left and right sides and the upper end of the beam 1 are provided with two hydraulic jacks 3, and the corbel 4 directly above the hydraulic jack 3 The stiffener 8 is welded at the web, because the upper part of the top brace 6, the corbel 4, the triangular stiffener 7 and the stiffener 8 are made into a whole in the factory, and the corbel 4 is made of I-beam, so the hydraulic jack 3 is used to make the top After the support 6 is separated from the adjusting plate 5, the top load can be dispersed. In addition, during the lifting and lowering process, the hydraulic strength, jacking height and oil return speed of the two hydraulic jacks 3 are synchronously controlled to ensure the structure The stability of the unloading process can be achieved by manually controlling the hydraulic pressure, oil return speed, etc., and when the corbel 4 is used as the force transmission structure for the lifting operation of the hydraulic jack 3, the stiffening plate 8 can be used to reduce the corbel. 4, and then through the triangular stiffener 7 can increase the overall stiffness.

Working principle: When the support frame system is unloaded, the corbel 4 is firstly lifted synchronously by the hydraulic jack 3 by about 5mm, so that the support 6 and the adjustment plate 5 are separated, and the upper load is transmitted to the longitudinal beam 2 through the hydraulic jack 3, and then pulled out An adjustment plate 5 synchronously controls the hydraulic jack 3 to fall back. After the hydraulic jack 3 exits the supporting force state, check whether the welding seams and stress changes of the upper main structure are normal. If the inspection indicators are normal, the follow-up can be carried out according to the above steps Unloading, pull out the adjustment plate 5 in sequence until the upper main structure is completely separated from the support system. During the release process of the support frame, the synchronization of the hydraulic jack 3's descent and the release amount of each level are important links to ensure safe release. To ensure synchronization, A commander-in-chief is set up on the ground, and a deputy commander is set up on each tire frame. The commander-in-chief is mainly responsible for issuing orders for each level of release and summarizing monitoring data. The deputy commander is mainly responsible for monitoring the working conditions of hydraulic jacks 3. The scale is calibrated on the hydraulic jack 3, and the sinking amount is controlled by the absolute shortening amount of the hydraulic jack 3, rather than the sinking amount of the structure.

Used in the above-mentioned embodiment: 1-beam; 2-longitudinal beam; 3-hydraulic jack; 4-corbel; 5-adjusting plate; Purchased or custom-made.

The model of the hydraulic jack is DYG50-100.

It should be noted that the above embodiments can be freely combined as required. The above is only a preferred embodiment of the present invention, it should be pointed out that, for those of ordinary skill in the art, without departing from the principle of the present invention, some improvements and modifications can also be made, and these improvements and modifications can also be made. It should be regarded as the protection scope of the present invention.

Claims (6)

1. A kind of hydraulic device unloading to steel structure support frame, it is characterized in that, described hydraulic device comprises: Beam (1), longitudinal beam (2), hydraulic jack (3), corbel (4), adjusting plate (5), top brace (6), triangular stiffening plate (7) and stiffening plate (8), the At least three longitudinal beams (2) are laid on the upper end of the beam (1); and a top support (6) is installed in the middle of the upper end of the longitudinal beam (2), and at least five adjustment plates (5) are laid between the top support (6) in the upper and lower parts ); the left and right ends of the top brace (6) in the upper part are welded with corbels (4) and triangular stiffeners (7), and the triangular stiffeners (7) are located at the upper end of the corbel (4) and the The legs (4) are welded, the lower ends of the corbels (4) on the left and right sides and the upper ends of the beam (1) are provided with two hydraulic jacks (3), and the corbels (4) directly above the hydraulic jacks (3) The stiffener (8) is welded at the web. 2. A hydraulic device for unloading a steel structure support frame according to claim 1, characterized in that: there are two beams (1) in total, and the beams (1) are placed on the columns of the support system, And the beam (1) adopts I-beam. 3. A hydraulic device for unloading a steel structure support frame according to claim 1, characterized in that: the longitudinal beam (2) is made of combined I-beam. 4. A hydraulic device for unloading a steel structure support frame according to claim 1, characterized in that: the top support (6) is divided into upper and lower parts. 5. A hydraulic device for unloading a steel structure support frame according to claim 1, characterized in that: the upper half of the top brace (6), the corbel (4), the triangular stiffener ( 7) and the stiffening plate (8) are manufactured in a factory as a whole. 6. A hydraulic device for unloading a steel structure support frame according to claim 1, characterized in that: said corbel (4) is made of I-beam.