Construction process for quickly assembling subway equipment room

Abstract

The invention provides a construction process for quickly assembling a subway equipment room. The construction process comprises the following steps: surveying and setting out; mounting a stand column; wallboard bottom positioning square steel pipes are installed; installing the wallboards; mounting a wall top longitudinal beam; mounting a top secondary beam between the longitudinal beams; and ceiling boards and roof boards are installed. According to the invention, a dry-type assembly process is adopted for construction, no concrete wet operation exists on site, the problem of cracking of splicing joints is avoided, the unique plate-adhesive tape-column-connecting rod structure is adopted, the problem of cracking in a long-term vibration environment is solved, the working efficiency can be greatly improved, and the construction period is shortened; and the fabricated installation factory is processed, so that the quality guarantee time is long, and huge overhead is saved for later operation and maintenance of the metro.

Description

Technical Field

[0001] The invention belongs to the technical field of construction of equipment management rooms in subway stations, and in particular relates to a construction process for rapid assembly of equipment rooms in subway stations. Background Art

[0002] In the design and construction of some subway station buildings, since the public area is a single-span without columns, and the equipment area is a single-column double-span or double-column three-span box-type frame structure, the construction period is tight and there are many functional rooms. Moreover, some projects are located in the soft soil area of ​​the Yangtze River floodplain and are underground projects. The humidity is serious and the precipitation is large during the rainy season every year. The equipment rooms and other functional rooms are prone to quality problems such as leakage, mildew, and moisture. The traditional construction method uses brick structure. Due to the long production and transportation cycle of brick masonry and the large labor demand for masonry, it cannot meet the construction needs of subway station equipment rooms and other functional rooms well, and the appearance quality and crack resistance, moisture resistance, sound insulation and other properties of the brick structure are also difficult to meet the needs of the owner. Therefore, the present invention designs a new construction process for rapid assembly of subway equipment rooms, which has a short processing cycle, fast installation speed, and no wet operation process. After installation, it can effectively solve traditional technical problems such as waterproofing, heat preservation, and sound insulation. Summary of the invention

[0003] In view of the deficiencies in the prior art, the present invention provides a construction process for rapid assembly of subway equipment rooms, which effectively solves the problems of long construction period, high labor cost, poor quality, poor moisture-proof and sound insulation performance existing in traditional brick equipment rooms.

[0004] The present invention achieves the above technical objectives through the following technical means.

[0005] A construction process for rapid assembly of a subway equipment room, comprising the following processes: Step 1: Measure and lay out; Step 2: Install the columns; Step 3: Install the square steel pipe at the bottom of the wall panel; Step 4: Install the wall panels between the studs; Step 5: Install the stringers at the top of the wall; Step 6: Install the secondary beam at the top; Step 7: Install the ceiling panels and roof panels.

[0006] Furthermore, in step 2, the column consists of a column body, a steel liner, an embedded iron plate, an outer RPC protective layer and a top inverted U-shaped connector. The column is pre-fabricated and installed by the manufacturer and then transported to the construction site for installation; wherein, the column body is sleeved on the outer periphery of the steel liner, and the column body, the steel liner and the embedded iron plate are welded and fixed, and installation holes are opened on the embedded iron plate; during installation, first drill and clean the holes at the positioned embedded iron plate bolt holes, and implant special inverted cone adhesive anchor bolts, and then use a crane to lift the column to the predetermined position for installation, and tighten the fixing nuts after confirming that it meets the requirements of the design drawings to achieve the installation of the column.

[0007] Furthermore, the column is an active powder concrete steel column, the active powder concrete has a strength of not less than 100 MPa and a thickness of not less than 20 mm.

[0008] Furthermore, the specific process of step 3 is as follows: According to the spacing between columns, cut the positioning square steel pipes to corresponding lengths for installation; when installing the positioning square steel pipes, first clean the structural base plate, then place the positioning square steel pipes on the ground, check whether the positioning square steel pipes are within the lines drawn in step 1, drill holes after confirmation, install expansion bolts, and fix the positioning square steel pipes.

[0009] Furthermore, the specific process of step 4 is as follows: Find the wall panel to be installed according to the model on the drawing, clean the side of the wall panel, and paste two fireproof rubber sealing strips; then lift the wall panel to be installed manually or by using a crane and move it to the designated installation position; after the wall panel is erected, align the card slot of the RPC clamp at the bottom of the wall panel with the positioning square steel pipe for clamping and installation; when installing the wall panel close to the column, connect and tighten the wall panel to the column through screws, wherein the screw passes through the wall panel through the screw connection hole on the side of the wall panel, then passes through the three screw connection holes on the side, and finally enters the interior through the construction hole on the column, and tightens the nut to make the wall panel and the column fit tightly together; when installing the wall panels in other positions, connect and tighten the wall panels to each other through screws.

[0010] Furthermore, the wall panels are lightweight active powder concrete composite panels; the columns and wall panels are tightly fitted through a socket-type interface structure and are connected and fixed by multiple screws; the wall panels are tightly fitted through a socket-type interface structure and are connected and fixed by multiple screws; the construction holes on the columns are sealed after installation.

[0011] Furthermore, the specific process of step 5 is as follows: The longitudinal beam is H-shaped steel. First, find the longitudinal beam to be installed according to the design drawings, and check the specifications of the longitudinal beam and the size of the opening. After the verification, use a crane to lift the longitudinal beam to the installation position, align the bolt holes on the web of the longitudinal beam with the installed bolt rods on the inverted U-shaped connector at the top of the column, vertically lift and drop the longitudinal beam to install, and tighten the nuts. At the same time, the longitudinal beam is clamped on the top of the wall panel, and a fire-proof rubber sealing strip is set at the gap to seal it.

[0012] Furthermore, the specific process of step 6 is as follows: Using movable scaffolding, a working platform is set up inside the room which is initially composed of columns, wall panels and longitudinal beams; L-shaped connectors are pre-installed on the sides of the longitudinal beams, and the secondary beams are connected to the connectors by bolts.

[0013] Furthermore, the specific process of step 7 is as follows: Use a crane to lift the ceiling panels to the top of the room outside the room that is initially composed of columns, wall panels, and longitudinal beams, and manually move them to the installation position for installation; after the ceiling panels are installed, use pressure strips and bolts or self-tapping screws to install and fix the roof panels on the longitudinal beams and secondary beams.

[0014] The present invention has the following beneficial effects: Compared with the traditional brick-built equipment room technology, the present invention adopts dry assembly technology, no concrete wet work on site, and no problem of cracking of assembly joints; the unique plate-strip-column-connecting rod structure solves the problem of cracks in a long-term vibration environment, which can greatly improve work efficiency and save construction time; the prefabricated installation factory processing has a long warranty period, saving huge expenses for the later operation and maintenance of the subway. At the same time, the accurate model provides strong digital support for design, manufacturing, installation, acceptance, operation management and maintenance.

[0015] The overall construction process of the present invention adopts dry assembly process, there is no concrete wet operation on site, and it is not troubled by cracking of assembly joints. The unique plate-strip-column-connecting rod structure can greatly improve work efficiency and save construction time; the assembled installation factory is processed, the warranty time is long, and huge expenses are saved for the later operation and maintenance of the subway. The unique RPC material and the design of the fireproof rubber sealing strip at the connection are superior in fire resistance, waterproofness, sound insulation, crack resistance, etc. than traditional brick equipment rooms. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the column foot method; Figure 2 This is a schematic diagram of the column foot method; Figure 3 This is a schematic diagram of the joint construction of wall panels and floor slabs; Figure 4 This is a schematic diagram of the joint between the wall panel and the column; Figure 5 This is a schematic diagram of the wall panel and wall panel joint construction; Figure 6 This is a schematic diagram of the wall panel and longitudinal beam node construction; Figure 7 It is the connection detail drawing between the longitudinal beam and the secondary beam; Figure 8 Rapid assembly construction process flow chart for subway equipment rooms; Fig. 9 This is the overall schematic diagram of the completed subway equipment room.

[0017] In the figure: 1-column; 2-embedded iron plate; 3-special inverted cone adhesive anchor bolt; 4-steel liner; 5-positioning square steel pipe; 6-RPC clamp; 7-wall panel; 8-fireproof rubber sealing strip; 9-screw; 10-longitudinal beam; 11-secondary beam; 12-RPC protective layer; 13-construction hole; 14-column body. DETAILED DESCRIPTION

[0018] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments, but the protection scope of the present invention is not limited thereto.

[0019] Reference Figure 8 , 9 The construction process for rapid assembly of subway equipment rooms of the present invention specifically includes the following processes: Step 1: Lay out the line; Clean the subway station structure floor to ensure it is flat and free of debris; complete the measurement and layout according to the design plan, ensure that the elevation reference baseline, wall panel axis, contour line, outer contour line of column 1, outer contour line of embedded iron plate 2, and bolt positioning points are clearly marked, and verify them for accuracy.

[0020] Step 2: Install column 1; After confirming that the marking is correct, install the column 1 according to the predetermined position. Before installation, confirm that the type and specification of column 1 meet the requirements of the design drawing, and ensure that the installation direction of column 1 meets the design requirements; refer to Figure 1 , 2As shown, the column 1 is composed of a column body 14, a steel liner 4, an embedded iron plate 2, an outer RPC protective layer 12 and a top inverted U-shaped connector. The column 1 is pre-fabricated and installed as a whole by the manufacturer and then transported to the construction site for installation. The column body 14 is sleeved on the outer periphery of the steel liner 4, and the column body 14, the steel liner 4 and the embedded iron plate 2 are welded and fixed. The embedded iron plate 2 is provided with six installation holes. During installation, firstly drill and clean the holes at the positioned bolt holes of the embedded iron plate 2, and implant special inverted cone adhesive anchor bolts 3. Then, use a crane to assist in hoisting the column 1 to the predetermined position for installation. After confirming that the verticality and elevation of the column 1 meet the requirements of the design drawings, tighten the fixing nuts to achieve the installation of the column 1.

[0021] The column 1 is a reactive powder concrete steel column (RPC column), the strength of the reactive powder concrete is not less than 100Mpa, the thickness is not less than 20mm, the specifications of the column body are 180×180mm in cross-sectional dimensions and 6mm in wall thickness, and the specifications of the steel liner 4 are 160×160mm in cross-sectional dimensions and 5mm in wall thickness; the embedded iron plate 2 is connected and fixed to the structural base plate by 6 M16 special inverted cone adhesive anchor bolts 3, and the effective anchoring length is 125mm. This method makes the column 1 firmly and tightly connected to the structural base plate of the subway station, and at the same time has the advantages of fast construction speed and saving construction time. The RPC protective layer 12 on the outside of the column 1 can improve the strength of the column.

[0022] Step 3: Install the bottom positioning square steel pipe 5 of the wall panel; After the column 1 is installed, the square steel pipe 5 with appropriate length is cut according to the spacing between the columns 1 for installation; Figure 3 As shown, when installing the positioning square steel tube 5, first clean the structural bottom plate, then put the positioning square steel tube 5 on the ground, check whether the positioning square steel tube 5 is located within the marked line, drill holes after confirmation, install expansion bolts, and fix the positioning square steel tube 5; the specification of the positioning square steel tube 5 is 25×25×2mm.

[0023] Step 4: Install wall panel 7; like Figure 3 , 45, find the wall panel 7 to be installed according to the model in the drawing, clean the side of the wall panel 7, and paste two fireproof rubber sealing strips 8, which can effectively improve the overall fireproof performance; then lift the wall panel 7 to be installed manually or by using a crane and move it to the designated installation position; after the wall panel 7 is erected, align the card slot of the RPC clamping piece 6 at the bottom of the wall panel 7 with the positioning square steel pipe 5 for clamping and installation; when installing the wall panel 7 close to the column 1, the wall panel 7 is connected and fastened to the column 1 through the screw 9, wherein the screw 9 is three (can be cut with an angle grinder), passes through the wall panel through the three screw connection holes on the side of the wall panel 7, then passes through the three screw connection holes on the side, and finally enters the interior through the construction hole 13 on the column 1, and tightens the nut to make the wall panel 7 fit tightly with the column 1; when installing the wall panels 7 at other positions, connect and fasten the wall panels 7 to the wall panels 7 through the screw 9; during installation, always measure the verticality of the wall panel 7 and the plate gap error to ensure that it meets the requirements of the design drawings. According to the above process, all subsequent wall panels 7 are installed.

[0024] The wallboard 7 is a lightweight active powder concrete composite board (UL-RPC wallboard), and the thickness of the board is 120mm, 150mm, 300mm, etc.; the column 1 and the wallboard 7 are tightly fitted through a tongue-and-groove structure (i.e., a socket-and-spigot interface structure) and are connected and fixed by three screws 9; the wallboard 7 and the wallboard 7 are tightly fitted through a tongue-and-groove structure (i.e., a socket-and-spigot interface structure) and are connected and fixed by three screws 9; the screw 9 is a through-wall screw with an outer diameter of 10mm. The construction hole 13 on the column 1 needs to be sealed after installation.

[0025] Step 5: Install the wall top longitudinal beam 10; The longitudinal beam 10 is an H-shaped steel. First, find the longitudinal beam 10 to be installed according to the design drawings, and check the steel specifications and hole size of the longitudinal beam 10; after checking, use a crane to hoist the longitudinal beam 10 to the installation location, align the bolt holes on the web of the longitudinal beam 10 with the bolt rods installed on the inverted U-shaped connector on the top of the column 1, and vertically hoist and drop the longitudinal beam 10 to install it; install the gaskets and nuts of the longitudinal beam fixing bolts and tighten them to connect them firmly to the column 1. The longitudinal beam 10 is clamped on the top of the wall panel 7, and a fireproof rubber sealing strip 8 is provided at the gap to seal it to improve the overall fireproof performance.

[0026] Step 6: Install the top secondary beam 11; After the longitudinal beam 10 is installed, a movable scaffold is used to set up a working platform inside the room initially composed of the columns 1, the wall panels 7, and the longitudinal beam 10; Figure 7 As shown, an L-shaped connector is pre-arranged on the side of the longitudinal beam 10, and a mounting hole is opened on the connector. The secondary beam 11 is connected to the connector by bolt connection, thereby indirectly achieving fixation with the longitudinal beam 10; the secondary beam 11 is a U-shaped structure, 200 mm wide, and is tightly connected to the longitudinal beam 10.

[0027] Step 7: Install the roof panels; After the secondary beam 11 is installed, a crane is used outside the room to lift the ceiling board to the top of the room, and the board is manually moved to the installation position for installation. After the ceiling board is installed, the roof board is fixed to the longitudinal beam 10 and the secondary beam 11 using pressure strips and bolts or self-tapping screws.

[0028] Said Figures 1 to 8 The numbers involved are all dimensional data, and the unit is mm. The embodiments described above are preferred implementations of the present invention, but the present invention is not limited to the above implementations. Any obvious improvements, substitutions or modifications that can be made by those skilled in the art without departing from the essence of the present invention belong to the protection scope of the present invention.

Claims

1. A construction process for rapid assembly of subway equipment rooms, characterized in that: The process includes the following: Step 1: Measure and lay out; Step 2: Install the column (1); Step 3: Install the bottom positioning square steel pipe (5) of the wall panel; Step 4: Install the wall panels (7) between the columns (1); Step 5: Install the longitudinal beams (10) at the top of the wall; Step 6: Install the top secondary beam (11); Step 7: Install the ceiling panels and roof panels.

2. The construction process for rapid assembly of subway equipment rooms according to claim 1 is characterized in that: In the step 2, the column (1) is composed of a column body (14), a steel liner (4), an embedded iron plate (2), an outer RPC protective layer (12) and a top inverted U-shaped connector. The column (1) is prefabricated and installed by the manufacturer and then transported to the construction site for installation. The column body (14) is sleeved on the outer periphery of the steel liner (4). The column body (14), the steel liner (4) and the embedded iron plate (2) are welded and fixed. The embedded iron plate (2) is provided with installation holes. When installing the column (1), holes are first drilled and cleaned at the bolt hole positions of the embedded iron plate (2) that have been positioned, and special inverted cone adhesive anchor bolts (3) are implanted. The column (1) is then hoisted to a predetermined position by a crane for installation. After confirming that the design drawing requirements are met, the nuts are tightened to achieve the installation of the column (1).

3. The construction process for rapid assembly of subway equipment rooms according to claim 2 is characterized in that: The column (1) is a reactive powder concrete steel column, the reactive powder concrete has a strength of not less than 100 MPa and a thickness of not less than 20 mm.

4. The construction process for rapid assembly of subway equipment rooms according to claim 1 is characterized in that: The specific process of step 3 is as follows: According to the spacing between the columns (1), the positioning square steel pipe (5) is cut to a corresponding length for installation; when installing the positioning square steel pipe (5), the structural bottom plate is first cleaned, and then the positioning square steel pipe (5) is placed on the ground to check whether the positioning square steel pipe (5) is located within the line drawn in step 1. After confirmation, holes are drilled and expansion bolts are installed to fix the positioning square steel pipe (5).

5. The construction process for rapid assembly of subway equipment rooms according to claim 1 is characterized in that: The specific process of step 4 is as follows: Clean the side of the wall panel (7) and paste the fireproof rubber sealing strip (8); then lift the wall panel (7) to be installed manually or by using a crane and move it to the designated installation position; after the wall panel (7) is erected, align the card slot of the RPC card fixing piece (6) at the bottom with the positioning square steel pipe (5) for card connection and installation; when installing the wall panel (7) close to the column (1), connect and tighten the wall panel (7) and the column (1) through the screw rod (9), wherein the screw rod (9) passes through the wall panel (7) through the screw rod connection hole on the side of the wall panel (7), then passes through the screw rod connection hole on the side, and finally enters the interior of the column (1) through the construction hole (13) on the column (1), and tighten the nut so that the wall panel (7) and the column (1) are tightly fitted and installed; when installing the wall panels (7) at other positions, connect and tighten the wall panels (7) and the wall panels (7) through the screw rod (9).

6. The construction process for rapid assembly of subway equipment rooms according to claim 5 is characterized in that: The wall panel (7) is a lightweight active powder concrete composite panel; the columns (1) and the wall panels (7), and the wall panels (7) and the wall panels (7) are tightly fitted together through a socket-and-socket joint structure design and are connected and fixed through multiple screws (9); the construction holes (13) on the columns (1) are sealed after installation.

7. The construction process for rapid assembly of subway equipment rooms according to claim 1 is characterized in that: The specific process of step 5 is as follows: The longitudinal beam (10) is an H-shaped steel. After verification, the longitudinal beam (10) to be installed is hoisted to the installation position using a crane. The bolt holes on the web of the longitudinal beam (10) are aligned with the bolt rods installed on the inverted U-shaped connector on the top of the column (1). The longitudinal beam (10) is vertically hoisted and dropped to install, and the nuts are tightened. At the same time, the longitudinal beam (10) is clamped on the top of the wall panel (7), and a fireproof rubber sealing strip (8) is set at the gap to seal it.

8. The construction process for rapid assembly of subway equipment rooms according to claim 1 is characterized in that: The specific process of step 6 is as follows: A movable scaffold is used to set up a working platform inside a room initially composed of columns (1), wall panels (7) and longitudinal beams (10); an L-shaped connecting piece is pre-arranged on the side of the longitudinal beam (10), and the secondary beam (11) is connected to the connecting piece by bolt connection.

9. The construction process for rapid assembly of subway equipment rooms according to claim 1 is characterized in that: The specific process of step 7 is as follows: A ceiling panel is lifted to the top of the room by a crane outside the room initially composed of columns (1), wall panels (7) and longitudinal beams (10), and manually moved to the installation position for installation; after the ceiling panel is installed, the roof panel is fixed to the longitudinal beams (10) and the secondary beams (11) by means of pressure strips and bolts or self-tapping screws.

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