A high formwork construction method

Abstract

The present invention discloses a high-support formwork construction method, which relates to the technical field of building construction. The structure used in the method includes a frame beam, a structural plate is provided on the top of the frame beam, frame columns are provided around the frame beam, an embedded part is provided in the middle of the frame beam, an I-beam is welded on the top of the embedded part, a positioning steel bar is welded on the top of the I-beam, a top support is fixedly connected to the bottom of the I-beam, and a round steel pipe is fixedly installed on the bottom of the top support. The embedded part and the I-beam serve to divide the frame beam into two, so that the internal frame system of the frame beam forms a two-layer segmented force system. The present invention forms a two-layer segmented force system for the entire internal frame system by adding embedded parts, I-beams, etc. in the middle frame beam, thereby avoiding the occurrence of sub-items with greater risks exceeding a certain scale, reducing the time for expert demonstration of the plan, and greatly reducing the construction preparation time.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a high-formwork construction method. Background Art

[0002] During the construction of retro buildings, many buildings have antique and retro architectural practices. This project is a rural cultural tourism project. The overall height of the project building is not high. In order to enrich the overall appearance of the building, the project has set up slender towers at some construction sites, which have high formwork.

[0003] According to relevant regulations, the formwork and its supporting system must be erected at a height exceeding 8 meters, which is considered a sub-project exceeding a certain scale and carries a high risk, requiring expert review. High-rise formwork requires a high overall height-to-width ratio for the internal frame. The buildings surrounding the tower all have gable roofs, and the expanded internal frame cannot be erected on the sloping roof to bear the load. Preserving holes in the sloping roof would pose a significant quality risk to the waterproofing of the sloping roof structure. Furthermore, as this project is an EPC project with a small overall workload and a short construction period, the expert review process requires a long preparation time, which will seriously affect the on-site construction period.

[0004] Based on this, the patent of this invention designs a new type of high-support formwork construction method. This construction method is simple to operate, greatly shortens the construction preparation period, reduces the requirements for the length and width of the site, and greatly reduces the construction safety risks during the construction process. Summary of the Invention

[0005] The object of the present invention is to provide a high formwork construction method to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a high formwork construction method, the structure used in the method includes a frame beam;

[0007] a structural plate disposed on top of the frame beams;

[0008] Frame columns, which are arranged around the frame beams;

[0009] Embedded parts, the embedded parts are arranged in the middle of the frame beam;

[0010] I-beam, the I-beam is welded to the top of the embedded part, a positioning steel bar is welded to the top of the I-beam, a top support is fixedly connected to the bottom of the I-beam, and a round steel pipe is fixedly installed on the bottom of the top support;

[0011] It is characterized in that it includes the following steps:

[0012] Step 1: Since conventional formwork construction systems are dangerous for projects exceeding a certain scale, they require expert review, which prolongs the construction time. Therefore, in order to reduce the expert review time and improve the construction safety of high-support formwork, this method divides the internal frame system of the structure 15m above the ground into two layers of force-bearing systems, of which 0-7.5m is the first layer force-bearing system and 7.5-15m is the second layer force-bearing system. Specifically:

[0013] First, the operator constructs the inner and outer frames within a height range of 0-7.5m from the ground;

[0014] Step 2: After the operator completes the construction of the inner and outer frames, the structure with a height of 0-7.5m will be reinforced with formwork and the inner frame of the structure with a height of 0-7.5m will be fixed;

[0015] Step 3: The operator processes the embedded parts, which are used to divide the frame beam into two parts;

[0016] Step 4: The operator adds the processed embedded parts to the middle position of the frame beam. Since the height of the internal frame of the structure is 15m, the embedded parts are constructed at a height of 7.5m.

[0017] Step 5: After the embedded parts are constructed and embedded in the middle of the frame beam, the frame beam is divided into two layers of force-bearing systems. The operator pours concrete on the inner frame structure with a height range of 0-7.5m to fix it;

[0018] Step 6: After the internal structure of the frame beam with a height of 0-7.5m is poured, the operator hoists the I-beam in the middle of the frame beam;

[0019] Step 7: After the I-beam is hoisted and welded to the embedded parts, fix the position of the I-beam and lay out and fix the positioning steel bars on the upper part of the I-beam;

[0020] Step 8: After the I-beams and embedded parts are fixed, the operator will carry out construction on the inner and outer frames of the frame beams with a height of 7.5-15m;

[0021] Step 9: After the second-layer inner and outer frame construction of the frame beam is completed, the operator fixes the 7.5-15m structure through concrete pouring;

[0022] According to the above technical solution, the construction requirements of step 4 are:

[0023] The embedded position of the embedded parts shall be determined according to the spacing between the vertical poles after force calculation, and the top surfaces of the embedded parts shall be on the same horizontal plane;

[0024] According to the above technical solution, the construction requirements of step six are: the hoisting of the I-beam should ensure that the hoisting point is reasonable and safe, the I-beam and the embedded parts should be fully welded, and the weld should be full;

[0025] According to the above technical solution, the construction requirements of step seven are as follows: the upper positioning steel bars of the I-beam should be determined according to the spacing of the inner frame uprights, and the welding should be firm;

[0026] According to the above technical solution, the key point of the operation is that the first-floor inner frame can only be removed after the second-floor structure construction of the frame beam is completed and reaches the standard demolding strength.

[0027] Compared with the prior art, the present invention has the following beneficial effects:

[0028] (1) By adding embedded parts and I-beams to the middle frame beams, the entire internal frame system forms a two-layer segmented load-bearing system, avoiding the occurrence of sub-projects that exceed a certain scale and are more dangerous, reducing the time for expert demonstration of the scheme, and greatly reducing the construction preparation time;

[0029] (2) By dividing the formwork system into two-layer segmented force systems, the height of each section of the formwork is greatly reduced, and it does not belong to the super-dangerous large formwork system, so the construction safety will be effectively improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0031] Figure 1 1. It is a schematic elevation diagram of the high-support formwork system of the present invention;

[0032] Figure 2 It is a schematic plan view of the 7.500m high formwork system of the present invention;

[0033] Figure 3 is an enlarged schematic diagram of region A of the present invention;

[0034] Figure 4 It is a schematic elevation view of the present invention;

[0035] Figure 5 It is a schematic plan view of the 7.500m structure of the present invention;

[0036] Figure 6 It is a schematic plan view of the 15.000m structure of the present invention;

[0037] In the figure: 1. Frame beam; 2. Frame column; 3. Structural plate; 4. I-beam; 5. Top support; 6. Round steel pipe; 7. Positioning steel bar; 8. Embedded parts. DETAILED DESCRIPTION

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0039] See also Figure 1-6 , the present invention provides a technical solution: a high formwork construction method, comprising a frame beam 1, a structural plate 3 is provided on the top of the frame beam 1;

[0040] like Figure 1 Frame columns 2 are provided around the frame beam 1, and an embedded part 8 is provided in the middle of the frame beam 1. An I-beam 4 is welded to the top of the embedded part 8. The embedded part 8 and the I-beam 4 serve to divide the frame beam 1 into two parts, so that the internal frame system of the frame beam 1 forms a two-layer segmented force system;

[0041] like Figure 3 , a positioning steel bar 7 is welded to the top of the I-beam 4, a top support 5 is fixedly connected to the bottom of the I-beam 4, and a round steel pipe 6 is fixedly installed at the bottom of the top support 5;

[0042] A process flow of a high formwork construction method includes the following steps:

[0043] Step 1: Since conventional formwork construction systems are dangerous for projects exceeding a certain scale, they require expert review, which prolongs the construction time. Therefore, in order to reduce the expert review time and improve the construction safety of high-support formwork, this method divides the internal frame system of the structure 15m above the ground into two layers of force-bearing systems, of which 0-7.5m is the first layer force-bearing system and 7.5-15m is the second layer force-bearing system. Specifically:

[0044] First, the operator constructs the inner and outer frames within a height range of 0-7.5m from the ground;

[0045] Step 2: After the operator completes the construction of the inner and outer frames, the structure with a height of 0-7.5m will be reinforced with formwork and the inner frame of the structure with a height of 0-7.5m will be fixed;

[0046] Step 3: The operator processes the embedded part 8, which is used to divide the frame beam 1 into two parts;

[0047] Step 4: The operator adds the processed embedded part 8 to the middle position of the frame beam 1. Since the height of the internal frame of the structure is 15m, the embedded part 8 is constructed at a height of 7.5m.

[0048] Construction requirements: The embedded position of the embedded parts 8 must be determined according to the spacing between the vertical poles after force calculation, and the top surfaces of the embedded parts 8 should be at the same horizontal plane;

[0049] Step 5: After the embedded parts 8 are constructed and embedded in the middle of the frame beam 1, the frame beam 1 is divided into a two-layer force-bearing system. The operator pours concrete on the inner frame structure with a height range of 0-7.5m to fix it;

[0050] Step 6: After the internal structure of the frame beam 1 with a height of 0-7.5m is cast, the operator hoists the I-beam 4 in the middle of the frame beam 1;

[0051] The lifting point of I-beam 4 should be ensured to be reasonable and safe. I-beam 4 and embedded parts 8 should be fully welded, and the weld should be full.

[0052] Step 7: After the I-beam 4 is hoisted and welded to the embedded parts 8, the position of the I-beam 4 is fixed, and the positioning steel bars 7 are laid out and fixed on the upper part of the I-beam 4;

[0053] The construction requirements for the positioning steel bars 7 are as follows: the positioning steel bars 7 on the upper part of the I-beam 4 should be determined according to the spacing of the internal frame uprights, and the welding should be firm;

[0054] Step 8: After the I-beam 4 and the embedded parts 8 are fixed, the operator performs construction on the inner and outer frames of the frame beam 1 with a height of 7.5-15m;

[0055] Step 9: After the second-layer inner and outer frame of the frame beam 1 is completed, the operator fixes the 7.5-15m structure by pouring concrete;

[0056] The key points of the construction of frame beam 1 are that the outer scaffolding should be raised as the structure rises and maintained above 1.20m above the working surface. As the outer scaffolding rises, a full-cover safety net should be hung on the outside of the scaffolding and tied firmly.

[0057] Considering the safety of construction, the first-floor inner frame can only be removed after the second-floor structure of frame beam 1 is completed and reaches the standard demoulding strength.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] Finally, it should be noted that the above descriptions are merely preferred embodiments of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or substitute equivalents for some of the technical features. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A high formwork construction method, the structure used in the method includes: Frame beam (1); A structural plate (3), the structural plate (3) being arranged on top of the frame beam (1); Frame columns (2), the frame columns (2) being arranged around the frame beam (1); An embedded part (8), the embedded part (8) being arranged in the middle of the frame beam (1); An I-beam (4), the I-beam (4) being welded to the top of the embedded part (8), a positioning steel bar (7) being welded to the top of the I-beam (4), a top support (5) being fixedly connected to the bottom of the I-beam (4), and a round steel pipe (6) being fixedly installed on the bottom of the top support (5); It is characterized in that it includes the following steps: Step 1: Since conventional formwork construction systems are dangerous for projects exceeding a certain scale, they require expert review, which prolongs the construction time. Therefore, in order to reduce the expert review time and improve the construction safety of high-support formwork, this method divides the internal frame system of the structure 15m above the ground into two layers of force-bearing systems, of which 0-7.5m is the first layer force-bearing system and 7.5-15m is the second layer force-bearing system. Specifically: First, the operator constructs the inner and outer frames within a height range of 0-7.5m from the ground; Step 2: After the operator completes the construction of the inner and outer frames, the structure with a height of 0-7.5m will be reinforced with formwork and the inner frame of the structure with a height of 0-7.5m will be fixed; Step 3: The operator processes the embedded part (8), which is used to divide the frame beam (1) into two parts; In step 4, the operator adds the processed embedded part (8) to the middle position of the frame beam (1). Since the height of the internal frame of the structure is 15m, the embedded part (8) is constructed at a height of 7.5m; Step 5: After the embedded parts (8) are constructed and embedded in the middle of the frame beam (1), the frame beam (1) is divided into a two-layer force-bearing system, and the operator performs concrete pouring construction on the inner frame structure with a height range of 0-7.5m to fix it; Step 6: After the internal structure of the frame beam (1) with a height of 0-7.5m is cast, the operator hoists the I-beam (4) in the middle of the frame beam (1); Step seven, after the I-beam (4) is hoisted and welded to the embedded part (8), the position of the I-beam (4) is fixed, and the positioning steel bar (7) is laid out and fixed on the upper part of the I-beam (4); Step eight, after the I-beam (4) and the embedded parts (8) are fixed, the operator performs construction on the inner and outer frames of the frame beam (1) with a height of 7.5-15m; Step nine, after the construction of the second-layer inner and outer frames of the frame beam (1) is completed, the operator fixes the 7.5-15m structure by pouring concrete; The construction requirements of step 4 are: The embedded position of the embedded parts (8) needs to be determined according to the spacing between the vertical poles after force calculation, and the top surfaces of the embedded parts (8) should be on the same horizontal plane; The construction requirements of step seven are: the upper positioning steel bars (7) of the I-beam (4) should be determined according to the spacing of the inner frame uprights, and the welding should be firm; The key point of the operation is that the first-floor inner frame can only be removed after the second-floor structure of the frame beam (1) is completed and reaches the standard strength for demoulding.

2. A high formwork construction method according to claim 1, characterized in that: The construction requirements of step six are: the hoisting of the I-beam (4) should ensure that the hoisting point is reasonable and safe, the I-beam (4) and the embedded part (8) should be fully welded, and the weld should be full.

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