CN101701494B - Detachable convenient support device of steel structure building template and use method thereof - Google Patents

Abstract

The invention belongs to the technical field of steel structure construction engineering, and relates to a detachable and convenient supporting device and a use method of a steel structure building formwork. The two sections of formwork support extension beams of the formwork support device are respectively inserted into the belly of the two ends of the formwork support main beam, forming a longitudinal sliding connection with the formwork support main beam, and four load-bearing bolts are placed on the lower flange of the adjacent steel frame secondary beam , the template supporting elongated beam withstands the web of the steel frame secondary beam, and is tightened with the template supporting main beam by fastening bolts, and the template supporting device is fixed on the adjacent steel frame secondary beam of the steel structure. According to the calculation requirements, a certain density formwork support device is erected on the adjacent steel frame secondary beam, and then the building formwork is installed on the formwork support device. After the concrete pouring and curing are completed, the formwork support device and formwork are removed. This convenient, detachable and reusable steel structure building formwork support device realizes the rapid erection of the formwork and saves a lot of support materials and construction costs.

Description

Detachable and convenient support device and method of use of steel structure building formwork

technical field

The invention belongs to the technical field of steel structure construction engineering, and in particular relates to a detachable and convenient support device and a use method of a steel structure building formwork.

Background technique

With the massive construction of high-rise buildings, bridges, etc., more and more steel structures are used. In most steel structures, the slab is made of concrete, so building formwork is required during pouring construction. The traditional construction method is to directly erect scaffolding and then install wooden formwork. This method has a large workload and limited application range. Existing projects often use profiled steel plates as building formwork, which has the advantages of easy processing, light weight, fast installation speed, easy operation, and cancellation of cumbersome procedures for supporting and dismantling the formwork. Considering the role of the profiled steel plate to bear the load, the economy of this formwork is relatively poor. How to quickly and conveniently support building formwork while taking economical into account is an urgent problem to be solved in steel structure construction.

Contents of the invention

The purpose of the present invention is to solve the problem that the building formwork support system in the existing steel structure cannot take into account the economy and the construction speed, and especially provides a detachable and convenient support device for the steel structure building formwork, which is characterized in that the The easy-to-disassemble support device is referred to as formwork support device 6 for short. It is composed of formwork support main beam 1, formwork support extension beam 2, fastening bolt 3, load-bearing steel pipe 4, and load-bearing bolt 5. Two sections of formwork support extension beam 2 are respectively inserted into the formwork In the web at both ends of the supporting main beam 1, the height of the formwork supporting elongated beam 2 is slightly smaller than the web height of the formwork supporting main beam 1, the formwork supporting elongated beam 2 and the formwork supporting main beam 1 form a longitudinal sliding connection, and the formwork supporting the main beam 1 and formwork supporting elongated beam 2 are tightened against each other by fastening bolts 3, load-bearing steel pipes 4 with internal threads are respectively welded to the bottoms of both ends of formwork supporting main beam 1, and load-bearing bolts 5 are installed at the lower ends of load-bearing steel pipes 4.

There are 2 to 6 screw holes at both ends of the formwork support main beam 1, the screw holes are arranged in two rows up and down, and the fastening bolts 3 are screwed on the screw holes of the formwork support main beam 1 and tightened to support the elongation of the formwork support. beam 2; or, the formwork support elongation beam 2 is provided with 2 to 6 screw holes, the screw holes are arranged in two rows up and down, and the fastening bolts 3 are screwed on the screw holes of the formwork support elongation beam 2 and tightened. The formwork supports the main beam 1.

The length of the template supporting elongated beam 2 is 5-10% of the length of the template supporting main beam 1 .

The material of the formwork supporting main girder 1 is curled channel steel.

The template supporting elongated beam 2 is made of C-shaped steel or channel steel.

There are 4 load-bearing steel pipes 4 with internal threads, which are respectively welded to the front, rear, and rear sides of the bottom of the two ends of the formwork support girder 1. When in use, four load-bearing bolts 5 are placed on the lower flange of the adjacent steel frame secondary beam 7, and the formwork supporting elongated beams 2 at both ends withstand the webs of the steel frame secondary beam 7 respectively.

The formwork supporting device 6 is supported on the lower flange of the steel frame secondary beam 7 adjacent to the steel frame structure, and the length, height and spacing are adjustable. The function of the formwork support elongated beam 2 is to adjust the length of the formwork support device 6 so that the formwork support device 6 is just stuck between the webs of the adjacent steel frame secondary beams 7 to prevent the longitudinal movement of the hemming formwork support device 6 . Load-bearing steel pipe 4 with internal thread, and load-bearing bolt 5 is loaded onto, during use, load-bearing bolt 5 is unscrewed to be able to adjust the height of crimping channel steel and play the effect of support and anti-side shift. The load-bearing bolts 5 installed under the load-bearing steel pipe 4 are placed on the lower flange of the secondary beam 7 of the steel structure to adjust the height of the entire template support device 6 . The building formwork 10 is supported on the formwork supporting device 6 . The template support device 6 is reusable.

The formwork support device 6 replaces the scaffolding and is used for the support of the steel structure building formwork, and its use method is as follows:

Step 1) Calculate the support density of the template support device 6 on the steel frame secondary beam 7;

Step 2) According to the supporting density of the formwork support device 6 calculated in step 1), the formwork support device 6 is erected on the steel frame secondary beam 7, and all fastening bolts 3 on the formwork support device 6 are loosened to extend the formwork support The beam 2 is inserted into the formwork support main beam 1, the load-bearing bolts 5 in the load-bearing steel pipe 4 are unscrewed, the 4 load-bearing bolts 5 are placed on the lower flange of the adjacent steel frame secondary beam 7, and the position of the formwork support device 6 is adjusted. high;

Step 3) pull out the formwork support extension beam 2 at both ends to withstand the web of the steel frame secondary beam 7, tighten the fastening bolt 3, and the formwork support device 6 is fixed on the steel frame secondary beam 7;

Step 4) install building formwork 10 on formwork supporting device 6, carry out concrete floor pouring;

Step 5) After pouring and curing the concrete floor or other components, loosen the fastening bolts 3, insert the formwork support elongated beam 2 into the formwork support main beam 1, screw the load-bearing bolts 5 into the load-bearing steel pipes 4, and place the formwork The supporting device 6 is dismantled from the secondary beam 7 of the steel structure, and the building formwork 10 is dismantled.

The beneficial effect of the present invention is that, on the basis of using the traditional template, the scaffolding is replaced, the construction process is simplified, the workload is reduced, the erection and disassembly of the template support are faster and more convenient, and the rapid construction of the template is realized; the template The supporting device can be used repeatedly and has better economy.

Description of drawings

Fig. 1 is a structural schematic diagram of a formwork support device;

Fig. 2 is the structural sectional view of the A-A direction of Fig. 1;

Figure 3 is a schematic diagram of the back structure of the formwork support device;

Fig. 4 is a schematic diagram of the formwork supporting device used in erecting the formwork of a steel structure building.

Detailed ways

Fig. 1 is the schematic diagram of the structure of the formwork supporting device of the embodiment, the formwork supporting device 6 is composed of a formwork supporting main beam 1, a formwork supporting elongated beam 2, fastening bolts 3, load-bearing steel pipes 4, and load-bearing bolts 5, and the formwork supports the main beam 1 The material of the formwork supporting elongated beam 2 is C-shaped steel or channel steel. The height is slightly smaller than the web height of the formwork supporting main beam 1, and the formwork supporting elongated beam 2 and the formwork supporting main beam 1 form a longitudinal sliding connection. As shown in Figure 2 and Figure 3, there are four screw holes at both ends of the formwork supporting main beam 1 arranged in two rows up and down, and there are four fastening bolts 3 at each end of the formwork supporting main beam 1 screwed on the bolts of the formwork supporting main beam 1. On the hole and against the web plate of the formwork supporting elongated beam 2, so that the formwork supporting elongated beam 2 can be stuck in the formwork supporting main beam 1. Four load-bearing steel pipes 4 with internal threads are respectively welded to the front and rear sides of the bottom of the two ends of the formwork supporting main beam 1, and the load-bearing bolts 5 are installed at the lower ends of the load-bearing steel pipes 4 . The entire template support device 6 is erected on the lower flange of the adjacent steel frame secondary beam 7 through four load-bearing bolts 5, and the template support extension beams 2 at both ends withstand the webs of the steel frame secondary beam 7 respectively, and are tightened The fastening bolt 3 is tightened with the formwork support main beam 1, and the formwork support device 6 is fixed on the steel frame secondary beam 7 adjacent to the steel structure.

Formwork supporting main beam 1 and formwork supporting elongated beam 2 are mutually pressed against each other, and screw holes can also be set on formwork supporting elongated beam 2, and fastening bolts 3 are screwed into the screw holes of formwork supporting elongated beam 2 , against the web plate of the formwork supporting main beam 1, so that the formwork supporting elongated beam 2 can be stuck in the formwork supporting main beam 1.

Since the height of the template supporting device 6 can be adjusted, after the template 10 is set up, the top surface of the template 10 can be at the same height as the upper surface of the upper flange of the secondary beam 7; it can also be lower than the upper surface of the upper flange of the secondary beam 7, forming The concrete partially wraps the structural form of the secondary beam 7.

Fig. 4 is the schematic diagram that formwork supporting device is used for steel structure concrete floor formwork erection, and the steel structure of building is made of steel frame column 9, steel frame main beam 8, steel frame secondary beam 7, in order to be in the steel frame secondary beam 7 of steel structure When pouring steel structure concrete floor slabs, building formwork 10 must be set up on adjacent steel frame secondary beams 7 first. As shown in Figure 4, according to the design and calculation requirements, formwork support devices 6 of a certain density are first erected on each pair of adjacent steel frame secondary beams 7, and their heights are adjusted to be consistent, and building formwork 10 is installed on the formwork support devices 6. After the pouring and maintenance of the concrete floor slab is completed, the formwork supporting device 6 and the building formwork 10 are removed.

The steel structure building formwork support device of the present invention is convenient to erect, detachable and reusable, saving a large amount of support materials and construction costs.

Claims (9)

1. the detachable convenient support device of a steel structure building template, it is characterized in that, mould plate supporting device (6) supports girder (1) by template, template supports elongation beam (2), fastening bolt (3), load-bearing steel pipe (4), load-bearing bolt (5) constitutes, two sections template support elongation beams (2) insert respectively in the abdomen at template support girder (1) two ends, the height that template supports elongation beam (2) is slightly less than the web height that template supports girder (1), template supports elongation beam (2), and longitudinal sliding motion is connected with template support girder (1) formation, template supports between girder (1) and the template support elongation beam (2) and holds out against mutually by fastening bolt (3), the template that tapped load-bearing steel pipe (4) is welded on respectively supports bottom, girder (1) two ends, and load-bearing bolt (5) is installed in load-bearing steel pipe (4) lower end.

2. the detachable convenient support device of a kind of steel structure building template according to claim 1, it is characterized in that, described template supports girder (1) two ends and is provided with 2～6 screws, screw is pressed two rows and is arranged, and fastening bolt (3) is screwed in template and supports on the screw of girder (1) and hold out against described template and support elongation beam (2).

3. the detachable convenient support device of a kind of steel structure building template according to claim 1, it is characterized in that, described template supports elongation beam (2) and is provided with 2～6 screws, screw is pressed two rows and is arranged, and fastening bolt (3) is screwed in template and supports on the screw of elongation beam (2) and hold out against described template and support girder (1).

4. the detachable convenient support device of a kind of steel structure building template according to claim 1 is characterized in that, the length that described template supports elongation beam (2) is 5～10% of template support girder (1) length.

5. the detachable convenient support device of a kind of steel structure building template according to claim 1 is characterized in that, it is lipped channel that described template supports girder (1).

6. the detachable convenient support device of a kind of steel structure building template according to claim 1 is characterized in that, it is C shaped steel or channel-section steel that described template supports elongation beam (2).

7. the detachable convenient support device of a kind of steel structure building template according to claim 1 is characterized in that, totally 4 of described tapped load-bearing steel pipes (4) are welded on described template respectively and support both sides before and after the bottom, girder (1) two ends.

8. the detachable convenient support device of a kind of steel structure building template according to claim 1, it is characterized in that, described mould plate supporting device (6) is erected at by 4 described load-bearing bolts (5) on the bottom flange of adjacent steel frame secondary beam (7), and the template at two ends supports elongation beam (2) and withstands the web of steel frame secondary beam (7) respectively.

9. the using method of the detachable convenient support device of a steel structure building template is characterized in that, the step that installs steel structure building template is as follows:

Step 1) is calculated the density that installs at steel frame secondary beam (7) cope match-plate pattern bracing or strutting arrangement (6);

Step 2) set by step 1) mould plate supporting device (6) that calculates installs density, on steel frame secondary beam (7), set up mould plate supporting device (6), unscrew the whole fastening bolts (3) on the mould plate supporting device (6), template is supported elongation beam (2) to be inserted in the template support girder (1), load-bearing bolt (5) in the load-bearing steel pipe (4) is screwed out, 4 load-bearing bolts (5) are placed on the bottom flange of adjacent steel frame secondary beam (7), adjust the height of mould plate supporting device (6);

The template support elongation beam (2) that step 3) is pulled out two ends withstands the web of steel frame secondary beam (7), tightens fastening bolt (3), and mould plate supporting device (6) is fixed on the steel frame secondary beam (7);

Step 4) goes up at mould plate supporting device (6) construction formwork (10) is installed, and carries out the concrete floor cast;

After step 5) concrete floor or the cast of other member and maintenance finish, unscrew fastening bolt (3), insert in the template support girder (1) template being supported elongation beam (2), load-bearing bolt (5) is screwed in the load-bearing steel pipe (4), mould plate supporting device (6) is removed from steel work secondary beam (7), and removed construction formwork (10).

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