Fixed formwork gutter structure based on carapace structure and construction method thereof

Abstract

The present invention discloses a fixed formwork gutter structure based on a shell structure and a construction method thereof, comprising a crossbeam arranged parallel to the main structure floor deck, one end of the crossbeam along the length direction is fixedly connected to the low-span structure shell beam, and the end of the crossbeam away from the low-span structure shell beam along the length direction is fixedly connected to a connecting plate, the connecting plate is perpendicular to the crossbeam and the end away from the crossbeam is fixedly connected to the high-span structure shell beam, a plurality of longitudinal beams are fixedly installed on the crossbeam perpendicular to the crossbeam, and the plurality of longitudinal beams are arranged at equal intervals along the length direction of the concrete gutter, the concrete gutter is fixedly installed on the side of the longitudinal beam away from the crossbeam, and a scaffolding board is laid on the surface of the crossbeam on the side away from the longitudinal beam. The present invention effectively solves the problems of gaps in process connection caused by traditional construction methods, resulting in idle workers and idle machinery and equipment and materials, greatly improves construction efficiency, reduces cost expenditure, and reduces the danger of the construction process, and has high promotion value.

Description

Technical Field

[0001] The present invention relates to the technical field of building construction, and in particular to a fixed formwork gutter structure based on a carapace structure and a construction method thereof. Background Art

[0002] A gutter is the concave portion between the two spans of a building's roof. Roof drainage is divided into organized drainage and unorganized drainage (free drainage). Organized drainage generally collects rainwater into a gutter, which is then discharged through a rainwater pipe. The ditch that collects rainwater is called a gutter. Gutters are divided into internal gutters and external gutters. Internal gutters are gutters within the exterior wall, usually with a parapet, while external gutters are gutters that extend beyond the exterior wall, usually without a parapet. Gutters are often made of tinplate or asbestos cement.

[0003] The construction of traditional concrete gutters mostly adopts the method of setting up a full-floor scaffolding on the facade and laying the main and secondary ribs on top of the formwork for formwork fixation. This construction method has great safety hazards, a long construction period, and requires a lot of manpower and material resources. Summary of the Invention

[0004] In order to overcome the defects of the existing technology center, the present invention provides a fixed formwork gutter structure based on a shell structure and a construction method thereof, which effectively solves the problems caused by the traditional construction method, such as gaps in the process connection, idle workers and idle machinery and equipment materials, etc., and at the same time greatly improves the construction efficiency, reduces cost expenditure, and reduces the danger in the construction process.

[0005] In order to achieve the above-mentioned object, the present invention provides a fixed formwork gutter structure based on a carapace structure, comprising:

[0006] A horizontal beam is arranged parallel to the main structure floor decking, and one end of the horizontal beam along the length direction is fixedly connected to the low-span structure shell beam, and the end of the horizontal beam away from the low-span structure shell beam along the length direction is fixedly connected to a connecting plate, and the connecting plate is perpendicular to the horizontal beam and fixedly connected to the high-span structure shell beam at one end away from the horizontal beam. A plurality of longitudinal beams are fixedly installed on the horizontal beam perpendicular to the horizontal beam, and a plurality of the longitudinal beams are arranged at equal intervals along the length of the concrete gutter, and the concrete gutter is fixedly installed on the side of the longitudinal beam away from the horizontal beam, and the surface of the horizontal beam on the side away from the longitudinal beam is paved with scaffolding for the concrete gutter reinforcement binding, formwork and concrete construction.

[0007] Preferably, a side of the plurality of longitudinal beams away from the transverse beams is paved with wooden secondary ribs perpendicular to the length direction of the longitudinal beams, and a side of the wooden secondary ribs away from the longitudinal beams is paved with a template for binding the concrete gutter steel bars.

[0008] Preferably, one end of the cross beam close to the connecting plate extends outward relative to the surface of the connecting plate.

[0009] Preferably, the cross beam, the longitudinal beam and the connecting plate are all made of channel steel.

[0010] A construction method for a fixed formwork gutter structure based on a carapace structure comprises the following steps:

[0011] Fix the connecting plate and weld one end of the connecting plate to the high-span structure carapace beam;

[0012] Fix the crossbeam and weld the two ends of the crossbeam to the connecting plate and the low-span structure carapace beam respectively;

[0013] After the crossbeam is installed, the longitudinal beam is laid on the side of the crossbeam away from the connecting plate, and the longitudinal beam and the crossbeam are welded and fixed;

[0014] Lay scaffolding on the surface of the beam away from the longitudinal beam, and carry out steel bar binding, formwork support and concrete construction of the concrete drainage ditch.

[0015] Preferably, the cross beam, the longitudinal beam and the connecting plate are corresponding channel steels selected after comprehensive stress analysis and calculation of the permanent live load of the concrete gutter.

[0016] Due to the adoption of the above technical solution, the present invention has the following beneficial effects:

[0017] 1) It effectively solves the problem of gaps in process connection caused by traditional construction methods, which leads to idle workers and idle machinery, equipment and materials.

[0018] 2) Greatly improved construction efficiency, reduced cost expenditure, and reduced the risk during the construction process. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a process flow chart of the fixed formwork gutter structure based on the carapace structure and its construction method of the present invention.

[0021] Figure 2 It is a structural schematic diagram of a fixed formwork gutter structure based on a carapace structure and a construction method thereof of the present invention.

[0022] The corresponding relationship of the reference numbers in the accompanying drawings is as follows:

[0023] 1- Floor decking; 2- High-span structural shell beam; 3- Low-span structural shell beam; 4- Concrete gutter; 5- Connecting plate; 6- Horizontal beam; 7- Longitudinal beam; 8- Scaffolding board. DETAILED DESCRIPTION

[0024] The following is a further description of specific embodiments of the present invention in conjunction with the accompanying drawings. It should be noted that the description of these embodiments is intended to facilitate understanding of the present invention and does not constitute a limitation of the present invention. In addition, the technical features involved in the various embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.

[0025] The technical problem to be solved by the present invention is that for the existing concrete gutter construction, a full-floor scaffolding is set up on the facade, and the main and secondary ribs are covered with formwork for formwork fixation. This method has great safety hazards, a long construction period, and consumes a lot of manpower and material resources. A fixed formwork gutter structure based on a shell structure and a construction method thereof are provided, which effectively solves the problem of gaps in process connection caused by traditional construction methods, resulting in idle workers and idle machinery and equipment and materials. At the same time, it greatly improves construction efficiency, reduces cost expenditure, and reduces the danger in the construction process.

[0026] See also Figure 1 and Figure 2As shown, an embodiment of the present invention provides a fixed formwork gutter structure based on a carapace structure, including a crossbeam 6 arranged parallel to the main structure floor deck 1, one end of the crossbeam 6 along the length direction is fixedly connected to the low-span structure carapace beam 3, and the end of the crossbeam 6 away from the low-span structure carapace beam 3 along the length direction is fixedly connected to a connecting plate 5, and the connecting plate 5 is perpendicular to the crossbeam 6. Preferably, the end of the crossbeam 6 close to the connecting plate 5 extends outward relative to the surface of the connecting plate 5, and the extension length range is between 150mm and 200mm, and the end away from the crossbeam 6 is fixedly connected to the high-span structure carapace beam 2. The connection is performed by double-sided fillet welding, the weld leg size is 3m, the spacing is 2000mm, and instruments should be set up for detection during the welding process to ensure that the elevation of the crossbeam 6 is at the same height, and multiple longitudinal beams are fixedly installed on the crossbeam 6 perpendicular to the crossbeam 6. 7, and multiple longitudinal beams 7 are arranged at equal intervals along the length of the concrete gutter 4, the concrete gutter 4 is fixedly installed on the side of the longitudinal beam 7 away from the cross beam 6, and the surface of the cross beam 6 on the side away from the longitudinal beam 7 is paved with scaffolding 8, and the scaffolding 8 can be used by construction workers to carry out the relevant concrete gutter 4 steel bar binding and formwork construction and concrete construction. Preferably, multiple longitudinal beams 7 are paved with wooden secondary ribs perpendicular to the length direction of the longitudinal beam 7 on the side away from the cross beam 6, and the side of the wooden secondary ribs away from the longitudinal beam 7 is paved with a template for binding the concrete gutter 4 steel bars. It should be noted that the connecting plates 5, cross beams 6 and longitudinal beams 7 are all made of channel steel, and the permanent live load of the upper concrete gutter 4 structure is calculated by PKPM comprehensive force analysis. When the bearing capacity is met, channel steel with a specification of 20a is comprehensively selected, and the channel steel is cut and polished in the factory using CNC instruments.

[0027] The construction method of the fixed formwork gutter structure based on the carapace structure of the present invention comprises the following steps:

[0028] 1) Selection and processing of channel steel:

[0029] Taking into account the loads of the upper concrete gutter 4, people walking on it, and related stacked materials, PKPM (or other similar means) can be used for analysis and calculation. While meeting the bearing capacity, the best channel steel specifications can be selected, such as the 20a channel steel in this embodiment. The channel steel is cut and polished in the factory using CNC instruments, and the length dimensions of the connecting plate 5 and the crossbeam 6 are mainly counted, and the materials are processed reasonably. It should be noted that the use of PKPM engineering management software for structural load analysis and calculation is a commonly used load analysis and calculation method in this field. Of course, other similar means can also be used instead. This analysis method is not the protection point of the present invention, and the specific process will not be repeated here. As long as the method of calculating and analyzing the appropriate channel steel solution can be obtained according to the specific bearing capacity requirements, the method of the present invention can be implemented.

[0030] 2) Welding and fixing of connecting plate:

[0031] The connecting plate 5 is fixedly welded to the bottom of the high-span structure carapace beam 2. Since the elevations of the bottom of the high-span structure carapace beam 2 are different, through measurement and layout combined with drawing analysis, it is concluded that the connecting plate 5 has four length specifications: 0.3m, 1m, 1.5m, and 2m. When welding, the dust and rust on the bottom of the beam are cleaned, and E43 manual welding rods are used for welding. The weld leg size is 5mm, and the double-sided fillet weld has a spacing of 2000mm.

[0032] 3) Beam welding fixation:

[0033] Weld the ends of the crossbeam 6 to the connecting plate 5 and the low-span carapace beam 3, respectively. Considering the gutter's transverse dimensions and the operating floor, the crossbeam 6 is secured with a 3m-long 20a channel steel. The crossbeam 6, welded to the connecting plate 5, extends outward from the connecting plate 5 along the cross-sectional direction of the concrete gutter 4. The extension length ranges from 150mm to 200mm. The end welded to the low-span carapace beam 3 is welded with a double-sided fillet weld, with a 3mm leg size and a spacing of 2000mm. Instrumentation should be used during the welding process to ensure that the crossbeam 6 elevations remain consistent.

[0034] 4) Longitudinal beam laying and welding:

[0035] After the leveling, welding and fixing of the cross beam 6 are completed, the longitudinal beam 7 is laid and welded. The cross-sectional dimensions of the concrete gutter 4 are designed according to the drawings, and lines are drawn on the cross beam to locate the longitudinal beam 7. The longitudinal beam 7 is laid along the longitudinal direction of the concrete gutter 4. The spacing between the longitudinal beams 7 is 300mm, and they are welded to the cross beam 6 with a weld foot size of 3mm. The connection between the longitudinal beams 7 should be avoided on the cross beam 6, and butt welds should be used for connection, preferably 500mm to 1000mm away from the cross beam.

[0036] 5) Concrete gutter construction:

[0037] After the longitudinal and transverse welded channel steel beams are laid and fixed, 50mm*80mm wooden square ribs are laid perpendicular to the longitudinal beam 7 direction with a laying spacing of 200mm. The formwork is laid on the upper part to tie the concrete gutter 4 steel bars, and the side formwork is fixed. After the joint acceptance is passed, the concrete is poured and leveled.

[0038] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the described embodiments. It is apparent to those skilled in the art that various changes, modifications, substitutions, and variations to these embodiments may be made without departing from the principles and spirit of the present invention, and these changes and modifications still fall within the scope of protection of the present invention.

Claims

1. A fixed formwork gutter structure based on a carapace structure, characterized in that: It includes a horizontal beam arranged parallel to the main structure floor deck, one end of the horizontal beam along the length direction is fixedly connected to the low-span structure shell beam, the end of the horizontal beam away from the low-span structure shell beam along the length direction is fixedly connected to a connecting plate, the connecting plate is perpendicular to the horizontal beam and the end away from the horizontal beam is fixedly connected to the high-span structure shell beam, a plurality of longitudinal beams are fixedly installed on the horizontal beam perpendicular to the horizontal beam, and a plurality of the longitudinal beams are arranged at equal intervals along the length of the concrete gutter, the concrete gutter is fixedly installed on the side of the longitudinal beam away from the horizontal beam, and the surface of the horizontal beam on the side away from the longitudinal beam is paved with scaffolding for the concrete gutter reinforcement binding, formwork and concrete construction.

2. The fixed formwork gutter structure based on the carapace structure according to claim 1, characterized in that: A wooden secondary rib is laid on one side of the longitudinal beams away from the transverse beams, perpendicular to the length direction of the longitudinal beams, and a template for binding the concrete gutter steel bars is laid on one side of the wooden secondary ribs away from the longitudinal beams.

3. The fixed formwork gutter structure based on the carapace structure according to claim 1, characterized in that: One end of the cross beam close to the connecting plate extends outward relative to the surface of the connecting plate.

4. The fixed formwork gutter structure based on the carapace structure according to claim 1, characterized in that: The cross beam, the longitudinal beam and the connecting plate are all made of channel steel.

5. A construction method for a fixed formwork gutter structure based on a carapace structure according to any one of claims 1 to 4, characterized in that: The following steps are involved: Fix the connecting plate and weld one end of the connecting plate to the high-span structure carapace beam; Fix the crossbeam and weld the two ends of the crossbeam to the connecting plate and the low-span structure carapace beam respectively; After the crossbeam is installed, the longitudinal beam is laid on the side of the crossbeam away from the connecting plate, and the longitudinal beam and the crossbeam are welded and fixed; Lay scaffolding on the surface of the beam away from the longitudinal beam, and carry out steel bar binding, formwork support and concrete construction of the concrete drainage ditch.

6. The method for constructing a fixed formwork gutter structure based on a carapace structure according to claim 5, characterized in that: The cross beam, the longitudinal beam and the connecting plate are corresponding channel steels selected after comprehensive stress analysis and calculation of the permanent live load of the concrete gutter.

Images