Method for changing C-shaped simply supported purline into continuous purline

Abstract

The invention provides a method for changing a C-shaped simply supported purline into a continuous purline. Comprising the steps that 1, the inner surface of a roof C-shaped simply-supported purline (1) and the outer surface of cold-bent angle iron (2) are polished; step 2, placing the cold-bent angle iron (2) in a groove of the C-shaped simply supported roof purline (1), and drilling a mounting hole; and 3, the inner surface of the polished roof C-shaped simply-supported purline (1) and the outer surface of the cold-bent angle iron (2) are smeared with sticky steel glue (4), the cold-bent angle iron (2) is arranged in a groove of the roof C-shaped simply-supported purline (1) and aligned with the mounting hole, a core-pulling rivet (3) penetrates through the mounting hole to mount the cold-bent angle iron (2) on the roof C-shaped simply-supported purline (1), and fixing and tying are completed. The method does not need a dismounting process, reduces normal production in a plant to the maximum extent, and does not need large installation equipment; according to the invention, the existing structure is further reinforced, and indoor operation is not influenced by weather; the method is easy to operate, convenient to replace, short in construction period, safe and reliable.

Description

Technical Field

[0001] The invention relates to the field of construction industry, and in particular to a method for changing a C-shaped simply supported purlin into a continuous purlin. Background Art

[0002] At present, there are more and more projects to add photovoltaic panels to the roofs of steel structure factories, which poses a challenge to the bearing capacity of C-type simply supported purlins. When the load exceeds the bearing capacity of C-type simply supported purlins, the conventional solution is to directly remove the roof panels to replace the simply supported purlins, and then re-lay the roof panels and photovoltaic panels. This is a lot of work and the cost is high. In addition, this method takes a long time to complete, and will cause the existing roof panels to be unusable after removal or cause water leakage. Based on the above situation, there is an urgent need for a method to strengthen C-type simply supported purlins without removing the simply supported purlins, thereby increasing the bearing capacity of the C-type simply supported purlins. Summary of the invention

[0003] The purpose of the present invention is to provide a method for changing a C-shaped simply supported purlin into a continuous purlin.

[0004] The present invention is achieved through the following technical solutions:

[0005] The present invention relates to a method of changing a C-shaped simply supported purlin into a continuous purlin, and reinforcing the C-shaped simply supported purlin 1 of a roof, comprising the following steps:

[0006] Step 1, grinding the inner surface of the roof C-shaped simply supported purlin 1 and the outer surface of the cold-bent angle iron 2;

[0007] Step 2, placing the cold-bent angle iron 2 in the groove of the roof C-shaped simply supported purlin 1, marking, and drilling installation holes for the cold-bent angle iron 2;

[0008] Step 3, apply steel glue 4 to the inner surface of the polished C-shaped simply supported purlin 1 and the outer surface of the cold-bent angle iron 2, then embed the cold-bent angle iron 2 into the inner groove at the connection of two adjacent C-shaped simply supported purlins 1, and align it with the mounting hole, and use a core-pulling anchor 3) to pass through the mounting hole to install the cold-bent angle 2 on the C-shaped simply supported purlin 1 to complete the fixing and tensioning.

[0009] Preferably, in step 1, the inner surface of the polished roof C-shaped simply supported purlin 1 is matched and connected with the outer surface of the polished cold-bent angle iron 2.

[0010] Preferably, in step 2, the cold-bent angle iron 2 is an L-shaped angle iron.

[0011] Preferably, in step 2, the number of the cold-bent angle irons 2 is two, and they are symmetrically arranged on the inner surface of the roof C-shaped simply supported purlin 1.

[0012] Preferably, in step 2, the number of mounting holes on the two cold-bent angle irons 2 is the same.

[0013] Preferably, in step 2, the length of the cold-bent angle iron 2 is 1 / 5 of the total length of two adjacent C-shaped simply supported purlins.

[0014] The length of the cold-bent angle iron 2 of the present invention is 1 / 5 of the total length of two adjacent C-type simply supported purlins, which can not only meet the installation requirements; but also can provide an enhancement effect on the full-length bending bearing capacity of the C-type simply supported purlin in terms of force; if the length of the cold-bent angle iron 2 is greater than 1 / 5 of the total length of two adjacent C-type simply supported purlins, the length of the cold-bent angle iron 2 itself is too long, which not only increases the weight of its own structure, but also increases the cost; if the length of the cold-bent angle iron 2 is less than 1 / 5 of the total length of two adjacent C-type simply supported purlins, the length of the cold-bent angle iron 2 itself is too short, and because the supporting area is small, it cannot meet the purpose of providing an enhancement effect on the full-length bending bearing capacity of the C-type simply supported purlin in terms of force.

[0015] Preferably, the cold-bent angle iron 2 is composed of a first thin-walled steel section and a second thin-walled steel section.

[0016] Preferably, the cold-bent angle iron 2 has extended sides consisting of the first thin-walled steel section and the second thin-walled steel section with equal lengths.

[0017] Preferably, both the first thin-walled steel section and the second thin-walled steel section are provided with mounting holes.

[0018] The present invention has the following advantages:

[0019] (1) The method of converting a C-shaped simply supported purlin into a continuous purlin according to the present invention does not require a dismantling process, minimizes normal production in the factory, and does not require large-scale installation equipment.

[0020] (2) The method of changing a C-shaped simply supported purlin into a continuous purlin according to the present invention is to further reinforce the existing structure and can be completed by only indoor operation without being affected by weather.

[0021] (3) The method of converting a C-shaped simply supported purlin into a continuous purlin according to the present invention is simple to operate, convenient to replace, short in construction period, and safe and reliable. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the existing roof C-type simply supported purlin structure;

[0023] Figure 2 This is a structural diagram after the installation holes are drilled according to the method of the present invention;

[0024] Figure 3 This is a structural diagram after the cold-bent angle iron is installed according to the method of the present invention;

[0025] Figure 4It is a cross-sectional schematic diagram after the installation of the method of the present invention is completed;

[0026] Figure annotation:

[0027] 1-C-type simply supported purlin, 2-cold-bent angle iron, 3-pull-out anchor nails, 4-steel adhesive, 5-roof steel beam, 6-purlin support plate, 7-purlin fixing bolts. DETAILED DESCRIPTION

[0028] The present invention is described in detail below in conjunction with specific embodiments. It should be noted that the following embodiments are only further descriptions of the present invention, but the protection scope of the present invention is not limited to the following embodiments.

[0029] Example

[0030] This embodiment relates to a method of changing a C-shaped simply supported purlin into a continuous purlin, and reinforces the existing roof C-shaped simply supported purlin 1 structure, wherein the existing structure is shown in FIG. Figure 1 As shown, it includes: a C-shaped simply supported purlin 1, a roof steel beam 5, a purlin support plate 6, and a purlin fixing bolt 7; two adjacent C-shaped simply supported purlins 1 are fixed on the roof steel beam 5 through the purlin support plate 6 and the purlin fixing bolt 7;

[0031] The reinforcement method of this embodiment is shown in Figure 2-Figure 4 As shown, the following steps are included:

[0032] Step 1, grinding the inner surface of the roof C-shaped simply supported purlin 1 and the outer surface of the cold-bent angle iron 2; the grinded inner surface of the roof C-shaped simply supported purlin 1 and the grinded outer surface of the cold-bent angle iron 2 are matched and connected;

[0033] Step 2, placing the cold-bent angle iron 2 in the groove of the roof C-shaped simply supported purlin 1, marking it, and drilling mounting holes for the cold-bent angle iron 2; wherein the cold-bent angle iron 2 is an L-shaped angle iron, the number is two, and they are symmetrically arranged on the inner surface of the roof C-shaped simply supported purlin 1; the number of mounting holes on the two cold-bent angle irons 2 is the same; the length of the cold-bent angle iron 2 is 1 / 5 of the total length of two adjacent C-shaped simply supported purlins; the cold-bent angle iron 2 is composed of a first thin-walled steel section and a second thin-walled steel section; the length of the extended side of the cold-bent angle iron 2 composed of the first thin-walled steel section and the second thin-walled steel section is equal; the first thin-walled steel section and the second thin-walled steel section are both provided with mounting holes.

[0034] Step 3, then grind the inner surface of the roof C-shaped simply supported purlin 1 and the outer surface of the cold-bent angle iron 2, apply the steel glue 4, place the cold-bent angle iron 2 in the groove of the roof C-shaped simply supported purlin 1, and align it with the installation hole, and use the core-pulling anchor 3 to pass through the installation hole to install the cold-bent angle iron 2 on the roof C-shaped simply supported purlin 1 to complete the fixing and fastening.

[0035] The method of changing a C-shaped simply supported purlin into a continuous purlin involved in the present invention does not require a dismantling process, minimizes normal production in a factory building, and does not require large-scale installation equipment; the present invention can be completed by further reinforcing the existing structure, only requires indoor operation, and is not affected by weather; the present invention is simple to operate, convenient to replace, short in construction period, and safe and reliable.

[0036] The above describes the specific embodiments of the present invention. It should be understood that the present invention is not limited to the above specific embodiments, and those skilled in the art may make various modifications or variations within the scope of the claims, which will not affect the essence of the present invention.

Claims

1. A method of converting C-shaped simply supported purlins into continuous purlins, characterized in that: Strengthening the C-type simply supported purlin (1) comprises the following steps: Step 1, grinding the inner surface of the C-shaped simply supported purlin (1) and the outer surface of the cold-bent angle iron (2); Step 2, embed the cold-bent angle iron (2) into the groove of the C-shaped simply supported purlin (1), mark it, and drill installation holes for the cold-bent angle iron (2); Step 3, apply steel glue (4) to the inner surface of the polished C-shaped simply supported purlin (1) and the outer surface of the cold-bent angle iron (2), then embed the cold-bent angle iron (2) into the inner groove at the connection of two adjacent C-shaped simply supported purlins (1), align with the installation hole, and install the cold-bent angle iron (2) on the C-shaped simply supported purlin (1) with a core-pulling anchor nail (3) through the installation hole to complete the fixing and fastening.

2. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 1, characterized in that: In step 1, the inner surface of the polished C-shaped simply supported purlin (1) is matched and connected with the outer surface of the polished cold-bent angle iron (2).

3. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 1, characterized in that: In step 2, the cold-bent angle iron (2) is an L-shaped angle iron.

4. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 1, characterized in that: In step 2, the number of the cold-bent angle irons (2) is two, and they are symmetrically arranged on the inner surface of the roof C-shaped simply supported purlin (1).

5. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 3, characterized in that: In step 2, the number of mounting holes on the two cold-bent angle irons (2) is the same.

6. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 1, characterized in that: In step 2, the length of the cold-bent angle iron (2) is 1 / 5 of the total length of two adjacent C-shaped simply supported purlins (1).

7. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 1, characterized in that: The cold-bent angle iron (2) is composed of a first thin-walled steel section and a second thin-walled steel section.

8. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 1, characterized in that: The cold-bent angle iron (2) has an extended side formed by the first thin-walled steel section and the second thin-walled steel section with the same length.

9. The method of converting C-shaped simply supported purlins into continuous purlins as claimed in claim 1, characterized in that: The first thin-walled steel section and the second thin-walled steel section are both provided with mounting holes.

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