Construction method for ground beams of structural columns with various specifications

Abstract

The invention discloses a multi-specification structural column ground beam construction method, and particularly relates to the field of ground beam construction, the method comprises the following steps: 1, preparing materials, conveying required reinforcing steel bars, concrete and bricks into a construction site through a transport vehicle, and simultaneously preparing a plurality of related processing devices; 2, technical preparation is conducted, related drawings are collected for review, the size of a ground beam, steel bar configuration, elevation and the size of a constructional column are determined, a construction scheme is discussed, the construction period is determined, and construction key points are clearly marked. A common formwork is replaced by the brick tire formwork, when a column is poured, bricks can be used for building the formwork of the corresponding specification, limitation of the specification of the column is avoided, meanwhile, machining of the connecting position of the formwork and the ground beam is avoided, the connecting direction of the brick tire formwork and the ground beam can be adjusted at will, the machining cost is greatly reduced, and practicability is high.

Description

Technical Field

[0001] This invention relates to the field of ground beam construction, and more specifically, to construction methods for ground beams of various structural columns. Background Technology

[0002] Ground beams are foundation components in building structures used to mitigate uneven settlement of the foundation. They are typically arranged in a closed loop and together with structural columns form a seismic and crack-limiting system. Common types include wall foundation beams, column strip foundation beams, and prestressed anchored ground beams. Among them, prestressed anchored ground beams stabilize the soil and rock through the synergistic effect of anchor cables and the beam structure.

[0003] During the installation of existing ground beams, they need to be connected to structural columns. The column sizes are different, and the directions of their intersection with the ground beams are also different. In addition, the formwork is curved, resulting in high processing costs and a lot of waste. Summary of the Invention

[0004] To overcome the aforementioned deficiencies of the prior art, embodiments of the present invention provide construction methods for structural columns and ground beams of various specifications. By using brick formwork instead of ordinary formwork, bricks can be used to build formwork of corresponding specifications when pouring columns, without being limited by the specifications of the columns. At the same time, processing at the connection between the formwork and the ground beam is avoided, and the direction of the connection between the brick formwork and the ground beam can be adjusted arbitrarily, greatly reducing processing costs and making it highly practical.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a construction method for structural columns and ground beams of various specifications, comprising the following steps: Step 1: Material preparation. Transport the required steel bars, concrete, and bricks to the construction site by transport vehicles, and equip the site with relevant processing equipment. Step Two: Technical preparation, collecting and reviewing relevant drawings, determining the dimensions of the ground beam, reinforcement configuration, elevation, and structural column dimensions, discussing the construction plan, determining the construction period, and clearly marking the key construction points; Step 3: Site surveying. According to the drawings, the construction site area is measured. Based on the building axis control points, the axis of the ground beam is laid out using a total station, and the elevation control line of the top of the ground beam is set out using a level. Step 4: Construct the foundation trench. According to the installation location of the foundation, excavate the foundation trench within the marked area. The depth must meet the design requirements. Remove debris from the foundation trench and compact the foundation. Step 5: Subbase construction. A concrete subbase is laid at the base location to protect the foundation and facilitate the binding of reinforcing bars. After the subbase is poured, it should be smoothed in time and covered and watered for curing after initial setting. Step Six: Install the ground beam. Mark the positions of the reinforcing bars with marking lines, place the main reinforcing bars according to the marked positions, install the stirrups, tie the stirrups, and then install the tie bars. Step 7: Install the template. Install brick templates on both sides of the ground beam according to the axis. Connect the bricks with cement. Build cylindrical brick templates around the structural column. When installing, ensure the verticality of the brick templates on both sides and the flatness of the top of the brick templates. Step 8: Formwork pouring. Clean the debris inside the formwork, pour in the mixed soil, and then use an immersion vibrator to vibrate until the surface is covered with slurry and there are no air bubbles. When pouring to the top elevation, smooth it with a scraper. Step 9: Concrete curing. After pouring, cover the surface with burlap and sprinkle water regularly to keep the surface moist. Step 10: Remove the formwork. Remove the brick formwork around the ground beam and structural column one by one. After removal, check the surface of the ground beam and structural column for cracks. Then, lay a waterproof layer on the side of the ground beam.

[0006] Furthermore, the relevant equipment used in step one includes a rebar cutter, bending machine, welding machine, vibrator, level, and total station. At the same time, the quantities of rebar, concrete, and bricks need to be recorded.

[0007] Furthermore, in step two, the dimensions of the ground beam include the cross-sectional width, height, and length, and the dimensions of the structural column include the cross-sectional diameter and height.

[0008] Furthermore, in step three, the error of the ground beam top elevation control line is controlled within 3-5mm, and in step four, the compaction materials required are sand and gravel and lime-soil, with a compaction coefficient of 0.92-0.98.

[0009] Furthermore, in step five, the thickness of the subbase is 100-120mm, and the curing period for the subbase is 7-10 days.

[0010] Furthermore, in step six, the spacing error between the main reinforcing bars is less than 8-10mm, the reinforcing bar connection adopts a straight threaded sleeve connection, and each intersection of the stirrups needs to be tied.

[0011] Furthermore, in step seven, the elevation of the top surface of the brick formwork is consistent with the elevation of the top surface of the ground beam, and this is verified using a level.

[0012] Furthermore, in step eight, the concrete is pumped into the brick formwork and poured repeatedly in layers. In step eight, the spacing between the insertion points of the immersion vibrator is less than 400-500mm.

[0013] Furthermore, the watering and curing cycle in step nine is 12-16 hours, and the concrete curing cycle in step nine is 7-10 days.

[0014] Furthermore, in step ten, the waterproof layer is made of cement mortar, and the thickness of the waterproof layer is 20-25mm.

[0015] The technical effects and advantages of this invention are as follows: This invention uses brick-formed templates instead of ordinary templates. When pouring concrete for columns, bricks can be used to build templates of the corresponding specifications, which is not limited by the specifications of the columns. At the same time, it avoids processing at the connection between the template and the ground beam, and the direction of the connection between the brick-formed template and the ground beam can be adjusted arbitrarily, which greatly reduces the processing cost and has high practicality. Attached Figure Description

[0016] Figure 1 This is a top view of the brick formwork installation according to the present invention.

[0017] The attached diagram is labeled as follows: 1. Ground beam; 2. Brick formwork. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] according to Figure 1 The construction methods for various specifications of structural columns and ground beams are shown, including the following steps: Step 1: Material preparation. Transport the required steel bars, concrete, and bricks to the construction site by transport vehicle. At the same time, equip the site with a number of related processing equipment, including steel bar cutter, bending machine, electric welding machine, vibrator, level, and total station. The quantities of steel bars, concrete, and bricks must be recorded. Step Two: Technical preparation, collecting and reviewing relevant drawings, determining the dimensions of ground beam 1, reinforcement configuration, elevation, and structural column dimensions, discussing the construction plan, determining the construction period, and clearly marking the key construction points. In Step Two, the dimensions of ground beam 1 include the cross-sectional width, height, and length of ground beam 1, and the dimensions of structural column include the cross-sectional diameter and structural column height. Step 3: Site surveying. According to the drawings, the construction site area is measured. Based on the building axis control points, the axis of ground beam 1 is laid out using a total station. The top elevation control line of ground beam 1 is set out using a level. In step 3, the error of the top elevation control line of ground beam 1 is controlled within 4mm. Step 4: Construct the foundation trench. According to the installation location of the foundation, excavate the foundation trench within the marked area. The depth must meet the design requirements. Remove debris from the foundation trench and compact the foundation. The compaction materials required in Step 4 are sand and gravel and lime-soil, with a compaction coefficient of 0.96. Step 5: Subbase construction. A concrete subbase is laid at the base location to protect the foundation and facilitate the binding of reinforcing bars. After the subbase is poured, it is smoothed in time. After initial setting, it is covered and watered for curing. The thickness of the subbase in Step 5 is 110mm, and the curing period of the subbase is 8 days. Step Six: Install ground beam 1. Mark the position of the reinforcing bars with marking lines, place the main reinforcing bars according to the marked position lines, install the stirrups, tie the stirrups, and then install the tie bars. In Step Six, the spacing error between the main reinforcing bars is less than 9mm. The reinforcing bars are connected with straight threaded sleeves. Each intersection of the stirrups needs to be tied. Step 7: Install the template. Install the brick template 2 on both sides of the ground beam 1 according to the axis. Connect the bricks with cement. Build cylindrical brick template 2 around the structural column. When installing, ensure the verticality of the brick template 2 on both sides and the flatness of the top of the brick template 2. In step 7, the top surface elevation of the brick template 2 should be consistent with the top elevation of the ground beam 1. Check with a level. Step 8: Formwork pouring. Clean the debris inside the formwork, pour in the mixed soil, and then use an immersion vibrator to vibrate until the surface is smooth and free of air bubbles. When pouring to the top elevation, smooth it with a scraper. In step 8, the concrete is pumped into the brick formwork 2 and poured repeatedly in layers. In step 8, the spacing between the immersion vibrator insertion points is less than 450mm. Step Nine: Concrete curing. After pouring, cover the surface with burlap and sprinkle water regularly to keep the surface moist. The watering cycle in Step Nine is 14 hours, and the concrete curing cycle in Step Nine is 8 days. Step 10: Remove the formwork. Remove the brick formwork 2 around the ground beam 1 and the structural column in sequence. After removal, check the surface of the ground beam 1 and the structural column for cracks. Then, lay a waterproof layer on the side of the ground beam 1. The waterproof layer in Step 10 is made of cement mortar and has a thickness of 22mm.

Claims

1. A construction method for structural columns and ground beams of various specifications, characterized in that, The steps include the following: Step 1: Material preparation. Transport the required steel bars, concrete, and bricks to the construction site by transport vehicles, and equip the site with relevant processing equipment. Step 2: Technical preparation, collecting relevant drawings for review, determining the dimensions, reinforcement configuration, and elevation of the ground beam (1), the dimensions of the structural column, discussing the construction plan, determining the construction period, and clearly marking the key points of construction; Step 3: Site surveying. According to the drawings, the construction site area is measured. Based on the building axis control points, the axis of the ground beam (1) is laid out with a total station, and the top elevation control line of the ground beam (1) is set with a level. Step 4: Construct the foundation trench. According to the installation location of the foundation, excavate the foundation trench within the marked area. The depth must meet the design requirements. Remove debris from the foundation trench and compact the foundation. Step 5: Subbase construction. A concrete subbase is laid at the base location to protect the foundation and facilitate the binding of reinforcing bars. After the subbase is poured, it should be smoothed in time and covered and watered for curing after initial setting. Step 6: Install the ground beam (1), mark the position of the reinforcing bars with marking lines, place the main bars according to the marked position lines, install the stirrups, tie the stirrups, and then install the tie bars; Step 7: Install the template. Install the brick template (2) on both sides of the ground beam (1) according to the axis. Connect the bricks with cement. It is necessary to build a cylindrical brick template (2) around the structural column. When installing, determine the verticality of the brick template (2) on both sides and the flatness of the top of the brick template (2). Step 8: Formwork pouring. Clean the debris inside the formwork, pour in the mixed soil, and then use an immersion vibrator to vibrate until the surface is covered with slurry and there are no air bubbles. When pouring to the top elevation, smooth it with a scraper. Step 9: Concrete curing. After pouring, cover the surface with burlap and sprinkle water regularly to keep the surface moist. Step 10: Remove the formwork. Remove the brick formwork (2) around the ground beam (1) and the structural column in sequence. After removal, check the surface of the ground beam (1) and the structural column to see if there are any cracks. Then, lay a waterproof layer on the side of the ground beam (1).

2. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: The equipment used in step one includes a rebar cutter, bending machine, welding machine, vibrator, level, and total station. The quantities of rebar, concrete, and bricks must be recorded.

3. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: In step two, the dimensions of the ground beam (1) include the cross-sectional width, height and length of the ground beam (1), and the dimensions of the structural column include the cross-sectional diameter and the structural column height.

4. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: In step three, the top elevation control line error of the ground beam (1) is controlled within 3-5mm. In step four, the compaction material is sand and gravel and lime soil, with a compaction coefficient of 0.92-0.

98.

5. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: In step five, the thickness of the subbase layer is 100-120mm, and the curing period for the subbase layer is 7-10 days.

6. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: In step six, the spacing error between the main reinforcement bars is less than 8-10mm, the reinforcement bars are connected using straight threaded sleeves, and each intersection of the stirrups needs to be tied.

7. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: In step seven, the top elevation of the brick formwork (2) is consistent with the top elevation of the ground beam (1), and is checked with a level.

8. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: In step eight, the concrete is pumped into the brick formwork (2) and repeatedly poured in layers. In step eight, the spacing between the insertion points of the immersion vibrator is less than 400-500mm.

9. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: The water curing cycle in step nine is 12-16 hours, and the concrete curing cycle in step nine is 7-10 days.

10. The construction method for various specifications of structural columns and ground beams according to claim 1, characterized in that: In step ten, the waterproof layer is made of cement mortar and has a thickness of 20-25mm.

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