Pulling connection method of secondary filling wall and upper staggered space i-shaped beam

Abstract

The application discloses a kind of secondary filling wall and upper dislocation space I-shaped steel beam pull connection method, solve the existing dislocation space upper I-shaped steel beam and secondary structure masonry pull connection stability problem of poor of prior art;Two sides of secondary filling wall body secondary structure constructional column cast-in-place concrete formwork system is constructed, the prone I-shaped steel compression roof beam is set at the top of secondary filling wall body, one end of steel bar pull connection piece is fixedly connected with the web of I-shaped steel beam, the other end of steel bar pull connection piece is welded together with the top of I-shaped steel compression roof beam;Cast-in-place concrete is poured into secondary structure constructional column cast-in-place concrete formwork system and between the two flange plates of prone I-shaped steel compression roof beam at one time, and the cast-in-place concrete compression roof beam and two cast-in-place secondary structure constructional columns form the "door" shaped concrete integral pouring structure form;Lay the foundation for hanging decorative stone on secondary structure filling wall.

Description

Technical Field

[0001] This invention relates to a connection structure between a secondary structure masonry wall and an I-beam, and particularly to a method for connecting a secondary infill wall to an upper staggered space I-beam. Background Technology

[0002] Some of the multi-purpose buildings under construction use a cast-in-place concrete frame structure for their main structure. The exterior walls of these buildings employ a mixed structure of glass curtain walls and stone curtain walls, staggered and spliced ​​on different axes to achieve an aesthetically pleasing facade. I-beams, which fix the curtain wall framing, are installed between the cast-in-place concrete frames, forming a stable primary structure. A stone curtain wall, an independent secondary structure masonry wall, is installed below and outside the I-beams. This stone curtain wall consists of two secondary structural columns and an infill wall between them, with decorative stone cladding attached to it. To ensure… To ensure the stability of this type of secondary masonry wall, existing technology involves using square steel to create T-shaped connectors. A connecting plate is welded to one end of the T-shaped connector, and bolts are used to fix the T-shaped connector to the middle web of the inner I-beam. The other end of the T-shaped connector is placed inside the ring beam at the top of the masonry wall. Then, concrete is poured to form the cast-in-place ring beam of the secondary masonry wall, thus connecting the secondary masonry wall with the misaligned I-beam. However, this connection method cannot effectively secure the inner I-beam to the masonry below the ring beam, resulting in poor overall stability. Summary of the Invention

[0003] This invention provides a method for connecting a secondary infill wall to an I-beam in an upper misaligned space, which solves the technical problem of poor connection stability between the upper I-beam and the secondary structure masonry in the existing technology.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] The overall concept of this invention is as follows: After the cast-in-place concrete frame structure of the main building is completed, an I-beam is constructed between the top of the primary frame column on the left and the top of the primary frame column on the right. First, a secondary infill wall is constructed on the outside of the I-beam, with the transverse axis of the secondary infill wall and the transverse axis of the I-beam being parallel and staggered in space. Then, a cast-in-place concrete formwork system for the secondary structural columns on both sides of the secondary infill wall is constructed. Next, a horizontal I-beam capping beam is placed at the top of the secondary infill wall. The web of the I-beam capping beam is horizontal and has intermittently spaced through holes. The rear flange of the I-beam capping beam is located on the rear facade of the secondary infill wall, and the front flange is located on the front facade of the secondary infill wall. Next, one end of the rebar tie is fixedly connected to the web of the I-beam, and the other end of the rebar tie is welded to the top of the I-beam capping beam. Finally, cast-in-place concrete is poured into the cast-in-place concrete formwork system of the secondary structural column and between the two flanges of the horizontal I-beam capping beam in one go, forming a concrete capping beam and a secondary structural column. The cast-in-place concrete capping beam and the two cast-in-place secondary structural columns form a "door" shaped integral concrete casting structure. The web of the horizontal I-beam capping beam is embedded in the concrete capping beam, which greatly enhances the connection strength between the secondary infill wall and the I-beam capping beam in the staggered space above. This creatively solves the problem of reliable connection between cast-in-place secondary structural concrete columns of different materials and the I-beam capping beam of the primary structure.

[0006] A method for connecting a secondary infill wall to an I-beam in an offset space above it includes a left primary concrete frame column and a right primary concrete frame column, with an I-beam installed between the top of the left primary concrete frame column and the top of the right primary concrete frame column; characterized by the following steps:

[0007] The first step is to construct the secondary structural infill wall on the outside of the I-beam. The transverse axis of the secondary structural infill wall is parallel to and staggered with the transverse axis of the I-beam.

[0008] The second step is to separately construct the cast-in-place concrete formwork system for the left side structural column of the secondary structure on the left side of the secondary structure infill wall and the cast-in-place concrete formwork system for the right side structural column of the secondary structure on the right side of the secondary structure infill wall.

[0009] The third step is to fabricate an I-beam capping beam based on the length of the secondary structure infill wall, and to open through holes at intervals on the web of the I-beam capping beam.

[0010] Step 4: Hoist the I-beam capping beam, which was completed in Step 3, onto the top surface of the secondary structure infill wall, so that the web of the I-beam capping beam is horizontally positioned directly above the top surface of the secondary structure infill wall, and the rear flange of the I-beam capping beam is positioned on the rear facade of the secondary structure infill wall, and the front flange of the I-beam capping beam is positioned on the front facade of the secondary structure infill wall.

[0011] Step 5: Make the left cantilever rebar tie rod and the right cantilever rebar tie rod. A left cantilever U-shaped clamp is set at the front end of the left cantilever rebar tie rod, and a right cantilever U-shaped clamp is set at the front end of the right cantilever rebar tie rod.

[0012] Step 6: Weld the rear end of the left cantilever steel bar tie rod to the web of the I-beam beam, and then weld the left cantilever U-shaped clip to the top of the I-beam capping beam. Weld the rear end of the right cantilever steel bar tie rod to the web of the I-beam beam, and then weld the right cantilever U-shaped clip to the top of the I-beam capping beam.

[0013] Step 7: Perform a one-time concrete pouring for the cast-in-place concrete formwork system of the left and right side structural columns of the secondary structure and the space between the two flange plates of the I-beam capping beam. The specific steps are as follows: Pour concrete into the space between the two flange plates above the web of the horizontal I-beam capping beam. The poured concrete first enters the space between the two flange plates below the web through the through holes set at intervals on the web, and then enters the space of the cast-in-place concrete formwork system of the left and right side structural columns of the secondary structure. When the space of the cast-in-place concrete formwork system of the left and right side structural columns of the secondary structure is filled with concrete, and the space between the two flange plates of the I-beam capping beam above the web is also filled with concrete, stop pouring concrete. The concrete capping beam, the concrete structural columns of the left and right side of the secondary structure form a "door" shaped integral concrete structure.

[0014] Step 8: After the concrete poured in Step 7 has set, remove the closed formwork of the cast-in-place concrete formwork system for the left side structural column of the secondary structure and the closed formwork of the cast-in-place concrete formwork system for the right side structural column of the secondary structure.

[0015] After completing step six, a steel truss floor slab is installed between the rear flange plate of the I-beam capping beam and the I-beam crossbeam. The steel truss floor slab seals the gap between the rear flange plate of the I-beam capping beam and the I-beam crossbeam. A primary concrete top beam is installed between the left and right primary concrete frame columns directly above the I-beam crossbeam.

[0016] Temporary grouting ports are set on the closed formwork of the cast-in-place concrete formwork system for the left side structural column of the secondary structure and on the closed formwork of the cast-in-place concrete formwork system for the right side structural column of the secondary structure. Before proceeding to step seven, concrete is poured and vibrated through the temporary grouting ports. Then, after sealing the temporary grouting ports, step seven is carried out.

[0017] Reinforcing bars are installed in both the left and right sides of the secondary structure's cast-in-place concrete formwork system. Before proceeding to step six, the top of the reinforcing bars in the cast-in-place concrete formwork system of the secondary structure's left and right sides are welded together with the web of the I-beam capping beam.

[0018] This invention achieves an effective and reliable connection between the independently set secondary structural infill wall and the primary structural steel beam set above it. By pre-embedding the web of the I-beam capping beam in the secondary structural ring beam and welding the column reinforcement in the secondary structural columns to the web of the I-beam capping beam, a complete steel reinforcement skeleton is constructed in the two structural columns and the ring beam of the portal-shaped concrete frame, realizing the one-time integral casting of the portal-shaped concrete frame. By welding one end of the cantilever steel reinforcement tie rod to the flange plate of the I-beam capping beam and the other end of the cantilever steel reinforcement tie rod to the I-beam of the primary structure, the entire portal-shaped concrete frame is stably connected to the primary structure, ensuring the reliability and stability of the independently set secondary structural infill wall and laying the foundation for hanging decorative stone on the secondary structural infill wall. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the portal-shaped concrete frame after molding according to the present invention. Detailed Implementation

[0021] The present invention will now be described in detail with reference to the accompanying drawings:

[0022] A method for connecting a secondary infill wall to an upper staggered space I-beam includes a left primary concrete frame column 1 and a right primary concrete frame column 2. An I-beam beam 4 is installed between the top of the left primary concrete frame column 1 and the top of the right primary concrete frame column 2. The left primary concrete frame column 1, the right primary concrete frame column 2, and the I-beam beam 4 form a stable primary structural frame. An independent secondary structural masonry wall for attaching decorative stone is constructed outside the primary structural frame. The specific process is as follows:

[0023] The first step is to construct the secondary structural infill wall 14 on the outside of the I-beam 4. The transverse axis of the secondary structural infill wall 14 is parallel to and staggered with the transverse axis of the I-beam 4. After the secondary structural infill wall 14 is constructed, the internal steel reinforcement system of the secondary structural column is constructed on both sides of the secondary structural infill wall 14.

[0024] The second step is to erect the cast-in-place concrete closed formwork of the cast-in-place concrete formwork system 12 for the left side of the secondary structure structural column on the left side of the secondary structure infill wall 14 and the cast-in-place concrete closed formwork of the cast-in-place concrete formwork system 13 for the right side of the secondary structure structural column on the right side of the secondary structure infill wall 14, so as to construct the concrete pouring space for the two secondary structure structural columns.

[0025] The third step is to fabricate an I-beam capping beam 9 according to the length of the secondary structure infill wall 14, and to open through holes 11 at intervals on the web plate 10 of the I-beam capping beam 9.

[0026] Step 4: Hoist the I-beam capping beam 9, which was completed in step 3, onto the top surface of the secondary structure infill wall 14, so that the web plate 10 of the I-beam capping beam 9 is horizontally positioned directly above the top surface of the secondary structure infill wall 14, and the rear flange plate of the I-beam capping beam is positioned on the rear vertical surface of the secondary structure infill wall 14, and the front flange plate of the I-beam capping beam is positioned on the front vertical surface of the secondary structure infill wall 14. Then, close the I-beam capping beam 9 with a template.

[0027] Step 5: Make the left cantilever rebar tie rod 5 and the right cantilever rebar tie rod 7. A left cantilever U-shaped slot 6 is set at the front end of the left cantilever rebar tie rod 5, and a right cantilever U-shaped slot 8 is set at the front end of the right cantilever rebar tie rod 7.

[0028] Step 6: Weld the rear end of the left cantilever reinforcing bar tie rod 5 to the web of the I-beam beam 4. Weld the left cantilever U-shaped clamp 6 to the top of the I-beam capping beam 9. Weld the rear end of the right cantilever reinforcing bar tie rod 7 to the web of the I-beam beam 4. Weld the right cantilever U-shaped clamp 8 to the top of the I-beam capping beam 9. This will form a complete reinforcing bar skeleton consisting of the I-beam beam 4, the cantilever reinforcing bar tie rod, the I-beam capping beam 9, and the reinforcing bars inside the two structural columns.

[0029] Step 7: A one-time concrete pour is performed on the space between the cast-in-place concrete formwork system 12 for the left side structural column of the secondary structure, the cast-in-place concrete formwork system 13 for the right side structural column of the secondary structure, and the two flange plates of the I-beam capping beam 9. The specific steps are as follows: Concrete is poured into the space between the two flange plates above the web 10 of the horizontally lying I-beam capping beam 9. The poured concrete first enters the space between the two flange plates below the web 10 through the spaced-apart through holes 11 on the web 10, and then enters the cast-in-place concrete formwork system for the left side structural column of the secondary structure. After the space within System 12 and the space within the cast-in-place concrete formwork system 13 of the secondary structure right side structural column are filled with concrete, and after the space within System 12 and the space within the cast-in-place concrete formwork system 13 of the secondary structure right side structural column are also filled with concrete, and after the space between the two flanges of the I-beam capping beam 9 above the web 10 is also filled with concrete, the concrete pouring stops. The concrete capping ring beam 17, the concrete structural column 15 on the left side of the secondary structure, and the concrete structural column 16 on the right side of the secondary structure form a “door” shaped integral concrete structure.

[0030] Step 8: After the concrete poured in Step 7 has set, remove the closed formwork of the cast-in-place concrete formwork system 12 for the left side structural column of the secondary structure and the closed formwork of the cast-in-place concrete formwork system 13 for the right side structural column of the secondary structure. The web 10 of the I-beam capping beam 9 is embedded in the concrete capping ring beam 17, but the two flanges of the I-beam capping beam 9 are exposed on the outer facade of the concrete capping ring beam 17, which also provides a wide connection space for the welding connection between the I-beam capping beam 9 and the I-beam crossbeam 4 of the primary structure, and also provides operational convenience for the hanging of decorative stone.

[0031] After completing the sixth step, a steel truss floor slab 18 is installed between the rear flange plate of the I-beam capping beam 9 and the I-beam crossbeam 4. The steel truss floor slab 18 seals the gap between the rear flange plate of the I-beam capping beam 9 and the I-beam crossbeam 4, and concrete can be poured into the steel truss floor slab 18 to form a floor slab. A primary concrete top beam 3 is installed between the left primary concrete frame column 1 and the right primary concrete frame column 2 directly above the I-beam crossbeam 4.

[0032] Temporary grouting ports are provided on the closed formwork of the cast-in-place concrete formwork system 12 on the left side of the secondary structure and on the closed formwork of the cast-in-place concrete formwork system 13 on the right side of the secondary structure. Before proceeding to step seven, concrete is poured and vibrated through the temporary grouting ports. Then, after closing the temporary grouting ports, step seven is carried out, which can speed up the concrete pouring speed of the structural columns.

[0033] Reinforcing bars are installed in both the space of the cast-in-place concrete formwork system 12 on the left side of the secondary structure and the space of the cast-in-place concrete formwork system 13 on the right side of the secondary structure. Before proceeding to the sixth step, the top of the reinforcing bars in the structural columns are welded to the web 10 of the I-beam capping beam 9.

Claims

1. A method for connecting a secondary infill wall to an upper staggered space I-beam, comprising a left primary concrete frame column (1) and a right primary concrete frame column (2), wherein an I-beam beam (4) is provided between the top of the left primary concrete frame column (1) and the top of the right primary concrete frame column (2); characterized in that: Includes the following steps: The first step is to build a secondary structure infill wall (14) on the outside of the I-beam (4). The transverse axis of the secondary structure infill wall (14) and the transverse axis of the I-beam (4) are parallel to each other and staggered. Step 2: Construct the cast-in-place concrete formwork system (12) for the left side structural column of the secondary structure on the left side of the secondary structure infill wall (14) and the cast-in-place concrete formwork system (13) for the right side structural column of the secondary structure on the right side of the secondary structure infill wall (14). The third step is to make an I-beam capping beam (9) according to the length of the secondary structure infill wall (14), and to open through holes (11) at intervals on the web plate (10) of the I-beam capping beam (9). Step 4: Hoist the I-beam capping beam (9) completed in step 3 onto the top surface of the secondary structure infill wall (14), so that the web plate (10) of the I-beam capping beam (9) is horizontally positioned directly above the top surface of the secondary structure infill wall (14), and the rear flange plate of the I-beam capping beam is positioned on the rear vertical surface of the secondary structure infill wall (14), and the front flange plate of the I-beam capping beam is positioned on the front vertical surface of the secondary structure infill wall (14). Step 5: Make the left cantilever steel bar tie rod (5) and the right cantilever steel bar tie rod (7). A left cantilever U-shaped slot (6) is set at the front end of the left cantilever steel bar tie rod (5), and a right cantilever U-shaped slot (8) is set at the front end of the right cantilever steel bar tie rod (7). Step 6: Weld the rear end of the left cantilever steel bar tie rod (5) to the web of the I-beam beam (4), and weld the left cantilever U-shaped buckle (6) to the top of the I-beam capping beam (9) together. Weld the rear end of the right cantilever steel bar tie rod (7) to the web of the I-beam beam (4), and weld the right cantilever U-shaped buckle (8) to the top of the I-beam capping beam (9) together. Step 7: Perform a one-time concrete pouring for the space between the two flanges of the cast-in-place concrete formwork system (12) of the left side structural column of the secondary structure, the cast-in-place concrete formwork system (13) of the right side structural column of the secondary structure, and the I-beam capping beam (9). The specific steps are as follows: pour concrete into the space between the two flanges above the web (10) of the horizontal I-beam capping beam (9). The poured concrete first enters the space between the two flanges below the web (10) through the through holes (11) set at intervals on the web (10), and then enters the cast-in-place concrete formwork system of the left side structural column of the secondary structure. After the space of the secondary structure (12) and the space of the cast-in-place concrete formwork system (13) of the secondary structure (12) are filled with concrete, and the space between the two flanges of the I-beam capping beam (9) above the web plate (10) is also filled with concrete, the concrete pouring stops. The concrete capping ring beam (17), the concrete structural column (15) of the secondary structure (15) on the left side and the concrete structural column (16) of the secondary structure (16) on the right side form a "door" shaped integral concrete structure. Step 8: After the concrete poured in Step 7 has set, remove the closed formwork of the cast-in-place concrete formwork system (12) for the left side structural column of the secondary structure and the closed formwork of the cast-in-place concrete formwork system (13) for the right side structural column of the secondary structure.

2. The method for connecting a secondary infill wall to an upper staggered space I-beam according to claim 1, characterized in that, After completing the sixth step, a steel truss floor slab (18) is installed between the rear flange plate of the I-beam capping beam (9) and the I-beam crossbeam (4). The steel truss floor slab (18) seals the gap between the rear flange plate of the I-beam capping beam (9) and the I-beam crossbeam (4). A primary concrete top beam (3) is installed between the left primary concrete frame column (1) and the right primary concrete frame column (2) directly above the I-beam crossbeam (4).

3. A method for connecting a secondary infill wall to an upper staggered space I-beam according to claim 1 or 2, characterized in that, Temporary grouting ports are provided on the closed formwork of the cast-in-place concrete formwork system (12) on the left side of the secondary structure and on the closed formwork of the cast-in-place concrete formwork system (13) on the right side of the secondary structure. Before proceeding to the seventh step, concrete is poured and vibrated through the temporary grouting ports. Then, after closing the temporary grouting ports, the seventh step is carried out.

4. A method for connecting a secondary infill wall to an upper staggered space I-beam according to claim 1 or 2, characterized in that, In the space of the cast-in-place concrete formwork system (12) on the left side of the secondary structure and in the space of the cast-in-place concrete formwork system (13) on the right side of the secondary structure, there are steel bars inside the structural columns. Before the sixth step, the top of the steel bars inside the structural columns are welded to the web (10) of the I-beam capping beam (9).

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