CN205369948U - Lifting device for daylighting top is used for installing - Google Patents

Abstract

The utility model discloses a lifting device for installing a daylighting roof, which comprises a roof-raising bracket foundation, a roof-raising bracket center column, and an operating platform on the top of the center column. The roof-rising bracket center column is composed of a standard section and a climbing section , the foundation of the lifting bracket is fixed at the bottom end of the central column of the lifting bracket, and the operating platform at the top of the central column is fixed at the top of the central column of the lifting bracket. Utilizing the lifting device in the utility model can effectively meet the requirements of various aspects such as rich and changeable architectural shapes, complex structures, many supporting systems, and high process requirements at present and in the future, and can provide efficient, simple, convenient, safe and economical solutions for projects. Solutions to promote industrial development and social progress.

Description

Lifting device for skylight installation

technical field

The utility model relates to a lifting device for installing a lighting roof.

Background technique

So far, the construction schemes of elliptical (or round) daylighting roofs of various buildings, squares, etc. mostly adopt the traditional method, that is, the factory processes the steel structure components, transports the spare parts to the site, sets up a full house of scaffolding on the construction site, and then The parts are hoisted to the high altitude and then spliced on site. This high-altitude bulk splicing construction method has disadvantages such as long construction period, complicated construction measures, inconvenient quality control, and relatively high construction safety risks. Although for the installation and construction of this steel structure with a large span space, there are still installation methods such as high-altitude bulk, sub-section and block hoisting, and overall installation and construction. Among them, the high-altitude bulk method refers to the method of assembling small structural units or parts directly at the design position. There are two kinds of scaffolding and cantilever methods during construction. The former is widely used in the construction of grid frames and reticulated shells, especially suitable for bolt balls. The construction of node grids; the latter is mostly used in foreign construction and has been used in the construction of concrete thin shells. The high-altitude bulk method belongs to the in-situ assembly method of full-height scaffolding. The weight of a single piece is light, and the vertical transportation does not require large lifting equipment. ,costly. The strip and block hoisting method refers to the installation method in which the structure is divided into block units according to its own form, hoisted by hoisting machinery to the high-altitude design position, and then assembled into a whole. The characteristic of this method is that most of the welding and assembly work is carried out on the ground or in the factory, which is beneficial to control the construction quality and can save a lot of assembly as supports, but temporary reinforcement measures need to be considered after the structure is segmented. Still need to put up the assembled tire frame. The high-altitude sliding method refers to the installation method in which the entire structure is divided into several strip-shaped structural units that slide to the design position on the pre-set track and spliced into a whole. This strip-shaped unit can be hoisted to the assembled tire after assembling on the ground. On the rack, it can also be divided into sections, small units or even parts can be assembled into sliding units on the high-altitude assembled tire rack. The basic steps of the overall installation construction method are as follows: firstly assemble the steel roof trusses at all levels and the necessary internal support system on the ground, and then use the lifting bracket installed on the top of each steel column as the support, and lay the through-hole on it. Lift the steel roof as a whole through the steel strand, and finally lift the steel roof to a certain height when the steel roof is lifted to the design position, and then drop it point by point and connect it with the steel corbel of the pillar. The key points of the empty sliding construction method are the selection of the high-altitude assembly platform, the setting of the sliding track, the calculation of the traction force and the accuracy of the synchronous control, and the cost is very high. In short, the existing installation and construction of daylighting roofs cannot be promoted on a large scale. The disadvantages are: large welding workload on site, inability to effectively improve construction quality, long construction period, and high installation costs of daylighting roof steel structures.

Utility model content

The purpose of the utility model is to provide a lifting device for the installation of a daylighting roof which can realize modular operation and greatly improve the installation efficiency of the daylighting roof.

The lifting device used for the installation of the daylighting roof in the utility model includes the foundation of the lifting bracket, the central column of the lifting bracket, and the operating platform on the top of the central column. The central column of the lifting bracket is composed of a standard section and a climbing section. The support foundation is fixed on the bottom end of the central column of the lifting bracket, and the operating platform at the top of the central column is fixed on the top of the central column of the lifting bracket.

The foundation of the lifting bracket is made of rolled wide-flange H-shaped steel, which is respectively welded and fixed in the shape of a well.

An electric hoist and a counterweight are arranged on the upper part of the climbing section, and a climbing ladder with a guardrail connected with the operating platform at the top of the center column is installed in the climbing section.

The operating platform at the top of the center column includes a daylighting roof structure support, 8 single vertical trusses, a platform central frame and a plurality of connecting rods, and the single vertical truss and the platform central frame are connected by bolts. The operating platform at the top of the central column is fixedly installed on the top of the climbing section.

The structural support of the lighting roof is 8 steel spacers fixed on 8 single vertical trusses, and the outer end of the steel spacer is fixed with a ring module for limiting the space of the lighting roof. limit block.

The central frame of the platform includes four uprights that are detachably and fixedly connected to the top of the climbing section, and the square support platform that is fixedly connected to the top and lower half of the four uprights, and is fixed on the sides of the upper and lower square support platforms by bolts 8 single vertical trusses are connected, and the 8 single vertical trusses are distributed in a scattering manner.

Two adjacent single vertical trusses are connected and fixed by connecting rods, and a flat plate is laid between the horizontal connecting rods on the bottom surface to form a construction channel around the bottom surface.

The lifting device used for the installation of the daylighting roof in the utility model can effectively meet the requirements of various aspects such as rich and changeable architectural shapes, complex structures, many supporting systems, and high process requirements at present and in the future, and can provide high-efficiency, simple, convenient, Safe and economical solutions that drive industrial development and social progress.

Description of drawings

Fig. 1 is a schematic side view of the lighting roof in the utility model.

Fig. 2 is a top view schematic diagram of the lighting roof in the utility model.

Fig. 3 is a schematic structural view of the lifting device and the ring module in the raised state of the present invention.

Fig. 4 is a schematic structural view of the operating platform at the top of the central column of the lifting device in the present invention.

Fig. 5 is a structural schematic diagram of the foundation of the lifting roof support in the utility model.

Fig. 6 is a schematic diagram of the installation structure of the limit block in the present invention.

Fig. 7 is a flow chart of the installation method of the daylighting roof in the utility model.

detailed description

In order to further illustrate the principle and structure of the present utility model, the preferred implementation examples of the present utility model are now described in conjunction with the accompanying drawings. However, the embodiments are only for illustration and explanation, and cannot be used to limit the scope of protection of the utility model. .

As shown in Fig. 3 and Fig. 4, the lifting device used in the installation method of the daylighting roof in the utility model includes a roof lifting bracket foundation 1, a roof lifting bracket center column 2, and an operating platform 3 at the top of the center column. Among them: the foundation 1 of the lifting bracket is in the shape of a well, and is formed by welding and fixing the rolled wide-flange H-shaped steel 10. Beam or column connection to ensure that it can bear the superstructure load, construction load and certain accident loads, and if necessary, the structural members under the fulcrum 11 used to connect the central column 2 of the lifting bracket can be reinforced, as shown in Figure 5 .

The central column 2 of the lifting support bracket includes a standard section assembly 20 and a climbing section 21, wherein the standard section assembly 20 includes a number of vertically fixed standard sections that can be arranged and fixed, and the first standard section in the standard section assembly 20 is vertically fixed on the well-shaped On the fulcrum 11 of the lifting bracket foundation 1, the climbing joint 3 is set on the standard joint assembly 20, wherein the standard joint assembly 20 and the climbing joint 21 both adopt the standard joint and the climbing joint 21 currently used in the tower crane, so for the standard joint and the climbing joint The working principle of raising and lowering in section 21 is no longer described in detail. However, the climbing joint 21 in the utility model is based on the climbing joint used in the existing tower crane, and is provided with several first electric fixed claws (not shown in the figure) for grabbing the standard joint assembly 20 at its bottom. A counterweight bracket 23 is fixed on one side of the top of the climbing section 21, and a hanging platform 24 is fixed on the other side corresponding to the counterweight bracket 23 at the top of the climbing section 21. The rail 26 is slidably connected with an electric hoist 27, and the electric hoist 27 is connected with an electric lifting claw 25 through a sling 28 to facilitate the installation of the daylighting roof. At the same time, in order to ensure the safety of construction workers, a guardrail is welded and fixed on the top of the climbing section 21. ladder (not shown).

The operating platform 3 at the top of the center column is fixedly installed on the top of the climbing section 21, as shown in Fig. 3 and Fig. 4 . The operating platform 3 at the top of the center column includes a daylighting roof structure support 30, 8 single vertical trusses 31, a platform center frame 32 and a plurality of connecting rods 33.

The platform center frame 32 includes four columns 34 that are detachably fixedly connected to the top of the climbing section 21, and is fixedly connected (as welded) on the square bracket platform 35 at the top of the four columns 34 and the lower half, and at the same time on the square bracket platform 35 Two or four second columns 36 for strengthening strength can be added between them to ensure the strength and rigidity of the operating platform 3 at the top of the entire central column. Eight single vertical trusses 31 are fixedly connected to the sides of the upper and lower square support platforms 35 by means of bolts, and the eight single vertical trusses 31 are distributed in a scattered manner. And connect and fix between two adjacent single vertical trusses 31 by connecting rods 33, and then lay a flat plate between the connecting rods 33 horizontally on the bottom surface, a construction channel 38 can be formed around the bottom surface, and at the same time, between the vertical connecting rods 33 Guardrails are added between them to ensure the safety of the construction workers, and the guardrails can extend to the top of the climbing section 21 all the time.

The structural support 30 of the daylighting roof is 8 steel gaskets 37 fixed on the upper surface of the end of the single vertical truss 31 through bolt connection, and the ring module 4 of the daylighting roof is directly installed on the steel gasket 37, and the steel gasket 37 is I-shaped steel with a width of more than 300mm. When the steel gasket 37 is removed, enough space can be left between the top of the center column top operating platform 3 and the ring module 4, so that the center column top operating platform 3 and Climbing section 21 has enough space to rise to realize the dismounting of standard section. On the outer edge of the steel spacer 37, the limit block 39 is fixed by bolt connection, and the installation position of the limit block 39 on the steel spacer 37 can be adjusted to adapt to the lighting roof ring modules 4 of various sizes, as shown in the figure 6. In addition, the elevation error and circumferential error of the top module of the daylighting roof can be adjusted by adjusting the height of the steel spacer 37 .

As shown in Figure 1 and Figure 2, the lighting roof that needs to be installed in the utility model is generally ellipsoidal, and the utility model is carried out according to the following steps when installing this generally elliptical (or round) spherical lighting roof, as shown in Figure 7 Shown:

Taking the elliptical spherical lighting roof with a major axis diameter of 31.600m, a minor axis diameter of 22.106m, a sagittal height of 4.987m, and a bottom supporting short column with a height of 1.238m as an example, it will be described in detail. Among them, there are 40 supporting short columns 6, each 1.278m long and 70kg in weight, rooted on the concrete floor around the daylighting roof. There are 40 hoop members 7 at the bottom welded between the adjacent support columns 6, the longest of which is 2.3m, and the weight is 90kg. These structural components of the lighting roof are all rectangular tubes, and the connection between the bulk and the module, and between the modules is butt welding. These welding techniques are prior art and will not be described in detail.

Step 1: Draw the specific size and shape of the ellipsoidal lighting roof in the computer, and use the computer to cut the elliptical spherical lighting roof in the circumferential direction, segment it along the radial direction, and divide it into 11 modules of different shapes, the number of modules There are 22 modules, and the 22 modules include two middle ones. The two middle ones can form a ring module 4 located in the middle of the lighting roof after splicing, and the rest are scattered from the ring module 4. , and are 20 peripheral modules 5 that are symmetrical in pairs.

Step 2: The daylighting roof manufacturer produces according to the size of different modules, and transports them to the construction site where the daylighting roof steel structure needs to be installed.

Step 3: Install a lifting device on the construction site, fix the ring module 4 on the top of the lifting device, and lift the middle ring module 4 to the installation position of the daylighting roof by the lifting device.

Step 4: While the ring module is rising, fix and install the supporting short column 6 and the bottom ring member 7 on the concrete floor where the ring is installed on the daylighting roof.

Step 5: Fixedly install the peripheral modules 5 on the circular ring module 4 and the bottom ring member 7 according to the numbers. The installation of the peripheral modules 5 needs to be symmetrically installed according to the numbers when they are divided.

Step 6: Manually cut off the lighting roof structure support 30 fixed between the ring module 4 and the single vertical truss 31, that is, 8 steel gaskets 37, so that the ring module 4 and the single vertical truss 31 A space is formed between the center column top operating platform 3 and the climbing section 21 to provide space for the dismounting of the standard section.

Step 7: Remove the standard sections step by step to complete the installation of the daylighting roof.

In the third step above, the step of erecting the bracket with the lifting device is included, specifically:

1) Install and detect the lifting bracket foundation 1;

2) Use the tower crane to hoist the first standard section to the foundation 1 of the lifting bracket, and install the base bolts;

3) Use the tower crane to install the second standard section and fix it;

4) Utilize the tower crane to install the climbing joint 21 and fix it;

5) Hoist the operating platform 3 at the top of the central column to the upper part of the climbing section 21, install and fix it;

6) Hoist the two middle modules of the daylighting roof to the upper part of the operating platform 3 at the top of the center column, and fix them with the operating platform 3 at the top of the center column with buckles, and weld them symmetrically from the inside to the outside to form a whole, that is, the ring module 4; here In the step, if the hoisting conditions permit, the central inter-module can be hoisted as a whole after being welded on the ground;

7) Use the electric hoist 27 and the slide rail 26 on the climbing section 21 to install the next standard section, and install in sequence until all the standard sections are installed, and lift the ring module to the installation position.

Claims (7)

1. the lowering or hoisting gear being used for installing lighting roof, it is characterized in that, include a liter ceiling hold basis, rise ceiling hold newel, newel top operating platform, described liter of ceiling hold newel is made up of standard knot and the joint that climbs, described liter of ceiling hold basis is fixed on the bottom of described liter of ceiling hold newel, and described newel top operating platform is fixed on the top of described liter of ceiling hold newel.

2. lowering or hoisting gear according to claim 1, it is characterised in that described liter of ceiling hold basis adopts rolling wide width wing edge H profile steel, is respectively welded fixing in groined type.

3. lowering or hoisting gear according to claim 1, it is characterised in that the described top climbing joint is provided with electric block, counterweight, is provided with, in the described joint that climbs, the cat ladder with guardrail connected with newel top operating platform simultaneously.

4. lowering or hoisting gear according to claim 1, it is characterized in that, described newel top operating platform includes lighting roof structural bearings, 8 vertical truss of single Pin, Platform center framework and multiple connecting rod, between the described vertical truss of single Pin and Platform center framework with bolts, described newel top operating platform be fixedly mounted on climb joint top.

5. lowering or hoisting gear as claimed in any of claims 1 to 4, it is characterized in that, described lighting roof structural bearings is 8 pieces of steel plate washers being fixed on 8 vertical truss of single Pin, is fixed with at the outboard end of described steel plate washer and carries out spacing limited block for annulus module in described lighting roof.

6. lowering or hoisting gear as claimed in any of claims 1 to 4, it is characterized in that, Platform center framework includes four columns fixing to be connected with the joint top side detachable that climbs, it is fixedly connected on the square set platform of four root post tops and lower portion, at mode 8 vertical truss of single Pin of fixing connection that the side of upper and lower two square set platforms is bolted, described 8 vertical truss of single Pin are that dispersion shape mode is distributed.

7. lowering or hoisting gear according to claim 6, it is characterised in that connected by connecting rod fixing between adjacent two vertical truss of single Pin, be equipped with flat board between the connecting rod of bottom surface level, forms construction passage in bottom periphery.