CN109098441B - H-shaped steel jig frame - Google Patents

Abstract

The invention discloses an H-shaped steel jig frame which is applied to the field of steel structure roof construction, and the technical scheme is as follows: including pouring subaerial reinforced concrete terrace and full hall fastener formula steel pipe scaffold, be equipped with a plurality of two steel pipe main joist that are parallel to each other on the full hall fastener formula steel pipe scaffold, two steel pipe main joist upper berths are equipped with the flitch that is used for supporting steel pipe truss girder, are equipped with the bed-jig body on the flitch, are equipped with a plurality of jacks that are used for supporting steel pipe truss girder on the bed-jig body, pour two spandrel columns that are used for supporting steel pipe truss girder length direction both ends respectively on the reinforced concrete terrace, its advantage: because full fastener formula steel pipe scaffold frame can dismantle and cyclic utilization after the construction, reduced construction cost.

Description

H-shaped steel jig frame

Technical Field

The invention relates to the field of steel structure roof construction, in particular to an H-shaped steel jig frame.

Background

The steel structure is a structure made of steel materials, is one of main building structure types, is mainly made of beam steel, steel columns, steel trusses and other members made of profile steel, steel backing plates and the like, and has the advantages of light self weight, good vibration (shock) resistance and impact resistance of steel and the like.

When a modern tall and large space structure public building is constructed, due to large span and high space, a steel structure roof is usually adopted as the roof and mainly comprises a long-span steel pipe truss girder, an H-shaped steel secondary girder and a secondary truss girder.

However, in actual construction, the method is limited to the industrial level of a construction local place, and no large-scale steel structure processing factory or large-scale hoisting machinery is provided, so that main components of the long-span steel pipe truss girder are manufactured by sections of a factory, a high-altitude operation platform is erected at an installation part after the long-span steel pipe truss girder is transported to the site to complete aerial assembly, heavy temporary support columns are arranged at the connection positions of the sections, and meanwhile, considering that the installation of the steel pipe truss girder is a one-time construction process, the heavy temporary support columns (lattice columns) are manufactured and transported to the construction site at the factory together.

Disclosure of Invention

The invention aims to provide an H-shaped steel jig frame, which has the advantages that: because full hall fastener formula steel pipe scaffold frame can dismantle and cyclic utilization after the construction to construction cost has been reduced.

The technical purpose of the invention is realized by the following technical scheme: the utility model provides a H shaped steel bed-jig, is including pouring reinforced concrete terrace and full hall fastener formula steel pipe scaffold subaerial, full hall fastener formula steel pipe scaffold is last to be equipped with a plurality of two steel pipe main joist that are parallel to each other, two steel pipe main joist upper berths are equipped with the flitch, be equipped with the bed-jig body on the flitch, be equipped with a plurality of jacks that are used for supporting steel pipe truss roof beam on the bed-jig body, two heel posts that are used for supporting steel pipe truss roof beam length direction both ends respectively have been pour on the reinforced concrete terrace.

Through the technical scheme, when the steel pipe truss girder is assembled, an operator sequentially hoists and transports all sections of the steel pipe truss girder to the position above the jack through the crane and supports the steel pipe truss girder through the ejector rod of the jack, after all the sections of the steel pipe truss girder are welded together, the two ends of the steel pipe truss girder are fixed with the bearing column, and then the ejector rod of the jack is lowered; full hall fastener formula steel pipe scaffold provides the concatenation of steel pipe truss girder and bears the weight of the basis, and the operator can dismantle full hall fastener formula steel pipe scaffold, reuse after the construction, has saved the engineering resource, has reduced construction cost.

The invention is further configured to: the jig frame comprises a jig frame body and is characterized in that a plurality of cross beams distributed along the length direction of the jig frame body are arranged on the jig frame body, and two parallel vertical rods are arranged at two ends of each cross beam.

Through the technical scheme, when the steel pipe truss girder is supported on the ejector rod of the jack, the lower truss main rod of the steel pipe truss girder is respectively positioned between two vertical rods which are parallel to each other, so that the transverse shaking of the steel pipe truss girder during assembling is reduced, and the assembling precision is ensured.

The invention is further configured to: the supporting height of the jack is gradually reduced from the middle part of the steel pipe truss girder to the two ends.

Through the technical scheme, the arching height of the truss girder during installation is regulated according to the specification, and the possibility of deformation or downward disturbance of the steel pipe truss girder after the jack is withdrawn is reduced.

The invention is further configured to: the jig frame comprises a jig frame body and is characterized in that a steel base plate is arranged on the jig frame body, a jack is arranged on the steel base plate, a top rod of the jack is sleeved with a fixed cylinder, and an arc-shaped steel supporting plate is arranged on the fixed cylinder.

Through the technical scheme, the arranged steel base plate has the effects of increasing the contact area of the jack and the jig frame body and dispersing the pressure of the jack; the arc steel layer board that sets up then has reduced jack pin direct contact truss steel pipe, leads to the condition of steel pipe indent deformation to take place, does benefit to the slip and the accurate of steel pipe truss roof beam and takes one's place.

The invention is further configured to: two positioning angle steels which are symmetrically distributed about the jack axis are welded on the steel base plate.

Through the technical scheme, the positioning effect on the jack is achieved through the positioning angle steel, and the condition that the jack deviates in the bearing and unloading process is reduced.

The invention is further configured to: the bed-jig body includes two first H shaped steel that are parallel to each other and a plurality of second H shaped steel that set up between two first H shaped steel, the first H shaped steel of second H shaped steel perpendicular to, the steel backing plate distributes on the node that first H shaped steel and second H shaped steel are connected, adjacent two the steel backing plate that second H shaped steel diagonal node distributes passes through the bridging and connects.

Through above-mentioned technical scheme, strengthened the connection between steel backing plate and bed-jig body through the bridging, simultaneously because the length of bridging is fixed, made things convenient for the operator to the quick location of steel backing plate position.

The invention is further configured to: full hall fastener formula steel pipe scaffold is equipped with the guardrail railing at the flitch side, be equipped with the safety net on the guardrail railing.

Through above-mentioned technical scheme, the guardrail railing and the safety net that set up have played the guard action, have reduced the condition that the operator accident falls when the construction.

The invention is further configured to: and two adjacent battens are connected through a lead wire.

Through the technical scheme, the battens are connected into a whole through the lead wires, the sliding condition of the single batten is reduced, and the stability of the batten supporting structure is improved.

The invention is further configured to: the thickness of the batten is 60 mm.

Through the technical scheme, the reliability of the batten with the thickness of 60mm as a bearing foundation is guaranteed.

The invention is further configured to: and a dry powder fire extinguisher is arranged on the batten.

Through the technical scheme, the dry powder fire extinguisher enables an operator to move in some emergency situations during construction, and guarantees the personal safety of the operator.

In conclusion, the invention has the following beneficial effects: when the full fastener type steel pipe scaffold provides a bearing foundation and a construction platform for the steel pipe truss girder, the full fastener type steel pipe scaffold can be detached and reused, so that the waste of resources is saved, and the construction cost is reduced; the situation that the steel pipe of the steel pipe truss girder is pressed to be concave by the ejector rod of the jack is reduced through the arc-shaped steel supporting plate; meanwhile, under the matching of the cross beam and the vertical rod, the shaking of the steel pipe truss girder during assembling is reduced, and convenience is provided for assembling work of an operator.

Drawings

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

FIG. 2 is a schematic structural diagram of a jig frame body according to the present embodiment;

FIG. 3 is an enlarged view at A in FIG. 2;

FIG. 4 is a schematic structural diagram of a lead wire used in the present embodiment;

FIG. 5 is a schematic structural diagram of the steel pallet embodying the present embodiment;

FIG. 6 is an enlarged view at B in FIG. 5;

FIG. 7 is a schematic structural diagram of a safety net embodying the present embodiment

Reference numerals: 1. a reinforced concrete terrace; 11. the steel pipe scaffold is a full fastener type steel pipe scaffold; 12. a double steel pipe main keel; 13. wood block; 14. a jig frame body; 141. a first H-shaped steel; 142. a second H-shaped steel; 15. a jack; 16. a load-bearing column; 17. a cross beam; 171. erecting a rod; 2. a steel backing plate; 21. a fixed cylinder; 22. an arc-shaped steel supporting plate; 23. positioning angle steel; 24. a scissor support; 3. a body guard rail; 31. a safety net; 32. lead wire; 33. a dry powder fire extinguisher.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

Example (b): an H-shaped steel jig frame is shown in figure 1 and comprises a reinforced concrete terrace 1 and an all-round fastener typesteel pipe scaffold 11, wherein the reinforced concrete terrace 1 is poured on the ground and is used as the foundation of the all-round fastener typesteel pipe scaffold 11, and the whole load of the all-round fastener typesteel pipe scaffold 11 can be directly transmitted to the foundation; be equipped with a plurality of two steel pipemain joist 12 that are parallel to each other (as figure 3) on full hall fastener formulasteel pipe scaffold 11, as shown in figure 2, two steel pipemain joist 12 upper berths are equipped with a plurality ofbattens 13 that distribute along 12 length direction of two steel pipe main joist to as operation platform and bearing platform, the thickness ofbatten 13 is 60mm, and twoadjacent battens 13 pass through the lead wire 32 (as figure 4) and connect, makebattens 13 link into a whole, guarantee the bearing capacity ofbatten 13.

As shown in fig. 5 and 6, ajig frame body 14 is arranged on thebatten 13, a plurality ofjacks 15 for supporting the steel pipe truss girder are arranged on thejig frame body 14, afixing cylinder 21 is sleeved on a top rod of eachjack 15, an arc-shapedsteel supporting plate 22 is arranged on each fixingcylinder 21, the inner contour of each arc-shapedsteel supporting plate 22 is matched with the lower truss main rod of the steel pipe truss girder, and two bearingcolumns 16 for supporting two ends of the steel pipe truss girder in the length direction are further poured on the reinforced concrete terrace 1.

As shown in fig. 1 and 2, during actual construction, an operator firstly adjusts the elevation of each arc-shapedsteel supporting plate 22, then hoists the steel girder of the steel pipe truss to the arc-shapedsteel supporting plate 22 in a segmented manner by using an automobile crane, and performs welding and assembling work after each arc-shapedsteel supporting plate 22 supports and stabilizes the steel pipe truss girder; then the whole steel pipe truss girder is kept stand for 72 hours, so that all welding lines are fully cooled, two ends of the steel pipe truss girder and thebearing column 16 are concreted and solidified together through concrete, and finally the full-space fastener typesteel pipe scaffold 11 and other supporting components are disassembled; as the full fastener typesteel pipe scaffold 11 for providing the bearing platform has light weight of components, convenient transportation and reutilization, not only saves building resources, but also reduces construction cost.

As shown in fig. 5, thejig body 14 is provided with a plurality ofbeams 17 distributed along the length direction of thejig body 14, two ends of eachbeam 17 are provided with twovertical rods 171 parallel to each other, so that two ends of eachbeam 17 form a U-shaped frame, when the steel pipe truss girder is supported on the arc-shapedsteel supporting plate 22, the lower truss main rods of the steel pipe truss girder are respectively located in the two U-shaped frames, thereby limiting the transverse shaking of the steel pipe truss girder during assembling and improving the welding quality.

As shown in fig. 5, further, the steel pipe truss girder should be arched during installation according to the specification, so that the support height of thejack 15 is gradually reduced from the middle of the steel pipe truss girder to the two ends, which is beneficial to reducing the possibility of deformation or downward disturbance when thejack 15 is removed after the steel pipe truss girder is assembled.

As shown in fig. 5, the steel base plate 2 is arranged on thejig frame body 14, the steel base plate 2 is connected with thejig frame body 14 through spot welding, thejack 15 is supported on the steel base plate 2, when thejack 15 is ballasted by the steel pipe truss girder, pressure is dispersed on the steel base plate 2 through thejack 15, and then is dispersed to thejig frame body 14 through the steel base plate 2, so that on one hand, the supporting stability of thejack 15 is ensured, and on the other hand, the condition that thebatten 13 is damaged due to the fact that thejack 15 is in direct contact with thebatten 13 is also reduced; meanwhile, when the height of thejack 15 is not enough, an operator can also stack the multiple layers of steel base plates 2 to increase the relative height of thejack 15.

As shown in fig. 6, two positioning angle steels 23 symmetrically distributed about the axis of thejack 15 are welded on the steel backing plate 2, and the base of thejack 15 is located between the two positioning angle steels 23 and clamped with the positioning angle steels 23, so that the situation that thejack 15 is displaced under the impact of external force is reduced.

As shown in fig. 5, thejig frame body 14 includes two first H-shapedsteels 141 parallel to each other and a plurality of second H-shapedsteels 142 arranged between the two first H-shapedsteels 141, the second H-shapedsteels 142 are perpendicular to the first H-shapedsteels 141, so that the two first H-shapedsteels 141 are divided into rectangular regions, at this time, the plurality ofjacks 15 are divided into two groups, the two groups ofjacks 15 correspond to one first H-shapedsteel 141, meanwhile, the steel pad plates 2 are distributed on the nodes connected by the first H-shapedsteels 141 and the second H-shapedsteels 142, the steel pad plates 2 distributed on the diagonal nodes of the two adjacent second H-shapedsteels 142 are connected by the cross braces 24, that is, the four ends of the cross braces 24 are respectively connected with one steel pad plate 2, and the reliability of connection of the steel pad plates 2 is ensured. Meanwhile, as the distance between thejacks 15 is the same, the cross braces 24 are two diagonal lines of the rectangular area, and an operator can position the steel base plate 2 by controlling the length of the cross braces 24, so that the positioning is convenient and quick.

As shown in fig. 7, in addition, the full hall fastener typesteel pipe scaffold 11 is provided with thebody guard 3 at the side edge of thebatten 13, and thebody guard 3 is provided with thesafety net 31, so that the possibility that an operator accidentally falls off thebatten 13 during construction is reduced; meanwhile, a drypowder fire extinguisher 33 is arranged on the batten 13 so that an operator can conveniently cope with some emergency situations.

The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.

Claims (10)

1. The utility model provides a H shaped steel bed-jig which characterized in that: including pouring reinforced concrete terrace (1) and full hall fastener formula steel pipe scaffold (11) subaerial, be equipped with a plurality of two steel pipe main joist (12) that are parallel to each other on full hall fastener formula steel pipe scaffold (11), two steel pipe main joist (12) upper berths are equipped with flitch (13), be equipped with bed-jig body (14) on flitch (13), be equipped with a plurality of jacks (15) that are used for supporting steel pipe truss roof beam on bed-jig body (14), pour two spandrel columns (16) that are used for supporting steel pipe truss roof beam length direction both ends respectively on reinforced concrete terrace (1).

2. The H-type steel jig of claim 1, characterized in that: be equipped with a plurality of crossbeams (17) that distribute along bed-jig body (14) length direction on bed-jig body (14), the both ends of crossbeam (17) all are equipped with two pole setting (171) that are parallel to each other.

3. The H-type steel jig of claim 1, characterized in that: the supporting height of the jack (15) is gradually reduced from the middle part of the steel pipe truss girder to the two ends.

4. The H-shaped steel jig according to claim 3, characterized in that: be equipped with steel backing plate (2) on bed-jig body (14), jack (15) set up on steel backing plate (2), the cover is equipped with solid fixed cylinder (21) on the ejector pin of jack (15), be equipped with arc steel layer board (22) on solid fixed cylinder (21).

5. The H-shaped steel jig according to claim 4, characterized in that: two positioning angle steels (23) which are symmetrically distributed about the axis of the jack (15) are welded on the steel base plate (2).

6. The H-shaped steel jig of claim 5, characterized in that: the bed-jig body (14) includes two first H shaped steel (141) that are parallel to each other and a plurality of second H shaped steel (142) of setting between two first H shaped steel (141), second H shaped steel (142) perpendicular to first H shaped steel (141), the steel tie plate (2) distribute on the node that first H shaped steel (141) and second H shaped steel (142) are connected, adjacent two steel tie plate (2) that second H shaped steel (142) diagonal node distributes are connected through scissors brace (24).

7. The H-type steel jig of claim 1, characterized in that: full hall fastener formula steel pipe scaffold (11) are equipped with amusing railing (3) at flitch (13) side, be equipped with safety net (31) on amusing railing (3).

8. The H-type steel jig of claim 7, characterized in that: two adjacent battens (13) are connected through a lead wire (32).

9. The H-type steel jig of claim 8, characterized in that: the thickness of the batten (13) is 60 mm.

10. The H-type steel jig of claim 9, characterized in that: and a dry powder fire extinguisher (33) is arranged on the batten (13).

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