CN105525750B - Beam forms is crossed by a kind of construction method of door lintel and aluminium alloy door - Google Patents

Abstract

The invention discloses a construction method of a door lintel and an aluminum alloy door lintel template. The aluminum alloy door lintel template is composed of a bottom template, side templates symmetrically connected on both sides of the bottom template, and symmetrically connected on both sides of the bottom template. The box-type formwork composed of the end formwork at the end is provided with a telescopic ejector rod for support at the bottom of the box-type formwork. When the aluminum alloy door lintel formwork of the present invention is used for door lintel construction, the door lintel and structural beam can be constructed together, so that the door lintel and structural beam can be formed at one time, ensuring the integrity of the door lintel and structural beam. Moreover, the present invention uses an assembled aluminum alloy door lintel formwork instead of the existing wooden formwork for construction, which not only improves the construction quality of the door lintel, increases the turnover times of the formwork, but also saves the construction period and reduces the input of manpower and material resources.

Description

Construction method of door lintel and aluminum alloy door lintel template

technical field

The invention relates to a construction method of a door lintel and an aluminum alloy door lintel formwork, belonging to the technical field of building formwork construction.

Background technique

In order to meet the requirements of use, a door opening should be opened in the wall. In order to support the load from above the opening and transfer these loads to the walls on both sides of the door opening, a crossbeam is often set on the door opening, that is, the door lintel. At present, the construction of the door lintel is generally carried out after the construction of the main structural beam of the building is completed. Therefore, when the door lintel is constructed in the later stage, it is necessary to re-support the door lintel formwork and pour concrete. The construction is more troublesome, resulting in an extension of the construction period. Waste of manpower and material resources. At the same time, most of the existing door lintel forms are made of wood formwork, which not only has fewer turnover times, but also easily expands and deforms after absorbing water, which affects the forming size of the door lintel. In addition, since the door lintel is constructed behind the structural beam, the formed door lintel is not firmly combined with the structural beam, and the integrity is poor, which affects the load-bearing capacity of the door lintel.

Contents of the invention

The object of the present invention is to provide a construction method of door lintel and aluminum alloy door lintel formwork with simple structure, fast construction and low cost, so that the door lintel and structural beam can be formed in one-time construction, ensuring that the door lintel and The integrity of the structural beam, and replaces the existing wooden formwork construction method, improves the construction quality of the door lintel, increases the turnover times of the formwork, saves the construction period, and reduces the input of manpower and material resources.

The technical solution of the present invention: a construction method for a door lintel, including the existing aluminum alloy formwork construction method, making a rectangular opening at the bottom of the structural beam formwork, and then placing the pre-assembled box-type aluminum alloy door lintel formwork The mouth of the door is docked at the rectangular hole, and then the retractable ejector rod is used to tightly support the bottom of the aluminum alloy door lintel formwork. At this time, the door lintel reinforcement cage is placed in the aluminum alloy door lintel formwork, and the door lintel reinforcement cage It is bound and connected with the structural beam steel cage in the structural beam formwork, and then the aluminum alloy door lintel formwork and the concrete in the structural beam formwork are poured in sequence and vibrated. After the concrete reaches the design strength, the aluminum alloy door lintel formwork and structural beam formwork Demolition, thereby obtaining the door lintel connected with the structural beam as a whole.

The area of the rectangular opening is equal to the cross-sectional area of the door lintel, and the opening area of the aluminum alloy door lintel template is larger than the area of the rectangular opening.

An aluminum alloy door lintel formwork used in the above method, the aluminum alloy door lintel formwork is a box composed of a bottom formwork, side formworks symmetrically connected to both sides of the bottom formwork, and end formworks symmetrically connected to both ends of the bottom formwork The body formwork is provided with a telescopic push rod for support at the bottom of the box formwork.

The above-mentioned bottom formwork and side formwork are both rectangular shell formwork, reinforcing rods are arranged in the shell formwork, connecting holes are provided around the periphery of the shell formwork, and connecting holes are provided at the corners of the bottom formwork and side formwork. The right-angle connecting plate, after the bolt passes through the connecting hole on the right-angle connecting plate and the bottom formwork or the side formwork, the bottom formwork and the side formwork are fixedly connected.

Connection holes are provided around the aforementioned end formwork, and after the pins pass through the connection holes on the end formwork and the side formwork, the end formwork and the side formwork are fixedly connected.

The rod portion of the aforementioned bolt is conical, and a trapezoidal hole is arranged at one end of the rod portion, and a trapezoidal clamping plate is arranged in the trapezoidal hole.

The aforementioned retractable ejector rod includes a threaded sleeve with a handle, and a ejector rod that fits with the hole is provided in the counterbore at the upper end of the threaded sleeve, and a threaded support rod is provided at the threaded hole at the lower end of the threaded sleeve. The bottom end of the threaded support rod is welded with a base.

Due to the adoption of the above-mentioned technical scheme, the present invention has the advantages of: the present invention constructs the door lintel and the structural beam together while constructing the main structural beam of the building, so that the door lintel and the structural beam are formed in one-time construction, ensuring that the door lintel and the structural beam are formed together. The integrity of the structural beam, and the present invention uses the assembled aluminum alloy door lintel formwork to replace the existing wooden formwork for construction, which not only improves the construction quality of the door lintel, increases the turnover times of the formwork, but also saves the construction period and reduces input of manpower and material resources. Therefore, this method is not only simple in structure, fast and convenient in construction, but also greatly improves the load-bearing capacity of the door lintel, ensures the quality of the building, and can also save construction costs, shorten the construction period, and improve economic benefits.

Description of drawings

Fig. 1 is the front view of structural representation of the present invention;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is the perspective view of the structure schematic diagram of aluminum alloy door lintel formwork in the present invention;

Fig. 4 is the front view of the structure schematic diagram of the aluminum alloy door lintel formwork in the present invention;

Figure 5 is a top view of Figure 4;

Fig. 6 is the left view of Fig. 4;

Fig. 7 is A-A sectional view of Fig. 4;

Fig. 8 is a structural schematic diagram of the latch in the present invention;

Fig. 9 is a schematic structural view of the side formwork in the present invention;

Fig. 10 is a structural representation of the midsole formwork of the present invention;

Fig. 11 is a schematic structural view of a right-angle connecting plate in the present invention;

Fig. 12 is a schematic structural view of the telescopic mandrel in the present invention.

Explanation of reference signs: 1-side formwork, 2-end formwork, 3-right-angle connecting plate, 4-bottom formwork, 5-bolt, 5.1-trapezoidal hole, 5.2-trapezoidal clamping plate, 6-retractable ejector rod, 6.1- Push rod, 6.2-threaded sleeve, 6.3-threaded support rod, 6.4-handle, 6.5-base, 7-aluminum alloy door lintel template, 8-structural beam template, 9-connecting hole, 10-strengthening rod.

Detailed ways

In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments.

Example

As shown in Figures 3 to 7, an aluminum alloy door lintel formwork of the present invention, the aluminum alloy door lintel formwork 7 is composed of a bottom formwork 4, side formworks 1 symmetrically connected on both sides of the bottom formwork 4, and symmetrically connected The box formwork composed of the end formwork 2 at both ends of the bottom formwork 4 is provided with a telescopic push rod 6 for supporting at the bottom of the box formwork. As shown in Figures 9 to 11, the bottom formwork 4 and the side formwork 1 are both rectangular shell formwork, reinforcing rods 10 are arranged inside the shell formwork, connecting holes 9 are provided around the periphery of the shell formwork, and at the bottom The corner of formwork 4 and side formwork 1 is provided with a right-angle connecting plate 3 with connecting hole 9, and after latch 5 passes through right-angle connecting plate 3 and the connecting hole 9 on bottom formwork 4 or side formwork 1, bottom formwork 4 and The side template 1 is fixedly connected. The periphery of the end formwork 2 is provided with connecting holes 9 , and after the bolts 5 pass through the connection holes 9 on the end formwork 2 and the side formwork 1 , the end formwork 2 and the side formwork 1 are fixedly connected. As shown in FIG. 8 , the rod portion of the bolt 5 is conical, and a trapezoidal hole 5.1 is arranged at one end of the rod portion, and a trapezoidal clamping plate 5.2 is arranged in the trapezoidal hole 5.1. As shown in Figure 12, the telescopic push rod 6 includes a threaded sleeve 6.2 with a handle 6.4, and a push rod 6.1 that fits with the clearance of the hole is arranged in the counterbore at the upper end of the threaded sleeve 6.2. The threaded hole at the lower end of the barrel 6.2 is provided with a threaded support rod 6.3, and a base 6.5 is welded at the bottom of the threaded support rod 6.3.

When the aluminum alloy door lintel formwork of the present invention is used for door lintel construction, a rectangular opening 9 can be made in advance at the bottom of the structural beam formwork 8, the area of the rectangular opening 9 is equal to the cross-sectional area of the door lintel, and the aluminum alloy The area of the mouth of the door lintel template 7 is larger than the area of the rectangular hole 9; then the mouth of the pre-assembled box-type aluminum alloy door lintel template 7 is docked at the rectangular hole 9, and then the retractable ejector rod 6 is used to tighten The top is placed on the bottom of the aluminum alloy door lintel formwork 7. At this time, the door lintel reinforcement cage is placed in the aluminum alloy door lintel formwork 7, and the door lintel reinforcement cage is bound and connected with the structural beam reinforcement cage in the structural beam formwork 8, and then The aluminum alloy door lintel formwork 7 and the concrete in the structural beam formwork 8 are sequentially poured and vibrated. After the concrete reaches the design strength, the aluminum alloy door lintel formwork 7 and the structural beam formwork 8 are removed, so as to obtain an integrated structure with the structural beam. The door lintel improves its integrity.

Claims (6)

1. A construction method for a door lintel, including an existing aluminum alloy formwork construction method, characterized in that: a rectangular opening (9) is made at the bottom of the structural beam formwork (8), and then the pre-assembled box-type The mouth of the aluminum alloy door lintel formwork (7) is docked at the rectangular hole (9), and then the retractable ejector rod (6) is tightly pressed against the bottom of the aluminum alloy door lintel formwork (7). The reinforcement cage is placed in the aluminum alloy door lintel formwork (7), and the door lintel reinforcement cage is bound and connected with the structural beam reinforcement cage in the structural beam formwork (8), and then the aluminum alloy door lintel formwork (7) and The concrete in the structural beam formwork (8) is vibrated. After the concrete reaches the design strength, the aluminum alloy door lintel formwork (7) and the structural beam formwork (8) are removed to obtain a door lintel integrated with the structural beam . 2. The construction method of the door lintel according to claim 1, characterized in that: the area of the rectangular opening (9) is equal to the cross-sectional area of the door lintel, and the opening of the aluminum alloy door lintel template (7) The internal area is greater than the area of the rectangular hole (9). 3. An aluminum alloy door lintel formwork used in the construction method of the door lintel according to claim 1 or 2, characterized in that: the aluminum alloy door lintel formwork (7) is composed of a bottom formwork (4), The box-type formwork is composed of the side formwork (1) symmetrically connected to both sides of the bottom formwork (4) and the end formwork (2) symmetrically connected to both ends of the bottom formwork (4). Retractable ejector rod (6); the bottom formwork (4) and side formwork (1) are both rectangular shell formwork, and reinforcing rods (10) are arranged in the shell formwork, and there are Connecting hole (9), a right-angle connecting plate (3) with a connecting hole (9) is provided at the corner of the bottom formwork (4) and side formwork (1), and the pin (5) passes through the right-angle connecting plate (3) After connecting holes (9) on the bottom formwork (4) or the side formwork (1), the bottom formwork (4) is fixedly connected to the side formwork (1). 4. The aluminum alloy door lintel formwork according to claim 3, characterized in that: the periphery of the end formwork (2) is provided with connection holes (9), and the pin (5) passes through the end formwork (2) and the side After the connection hole (9) on the formwork (1), the end formwork (2) is fixedly connected with the side formwork (1). 5. The aluminum alloy door lintel template according to claim 3 or 4, characterized in that: the rod of the bolt (5) is conical, and a trapezoidal hole (5.1) is provided at one end of the rod, and the trapezoidal hole (5.1) is provided with a trapezoidal clamp (5.2). 6. The aluminum alloy door lintel template according to claim 3, characterized in that: the telescopic push rod (6) includes a threaded sleeve (6.2) with a handle (6.4), and the threaded sleeve ( 6.2) There is a push rod (6.1) in the counterbore at the upper end that fits the hole, a threaded support rod (6.3) is provided in the threaded hole at the lower end of the threaded sleeve (6.2), and a threaded support rod (6.3) is installed at the bottom of the threaded support rod (6.3). Welded with base (6.5).