Prefabricated reinforced concrete wall-beam-column integrated splicing fireproof wall

Abstract

The application discloses a prefabricated reinforced concrete wall-beam-column integrated splicing fireproof wall. The wall, beam, column and capping beam components are prefabricated into integrated units in a factory, and the integrated units are spliced by means of insertion and clamping groove, and a fireproof wall system is formed by splicing and joint reinforcement on site, which has the advantages of assembly, high strength, high fire resistance and the like, and is suitable for industrial scenes such as transformer substations and energy storage power stations. The components are standardized in factory production, the concrete strength, reinforcement configuration and the thickness of the protective layer are accurate, the on-site wet work is reduced, and the overall quality and dimensional accuracy are improved. The reinforced concrete body has strong fire resistance, and combined with the fireproof sealing and reinforcement measures of the joint, the high fire resistance limit requirement is met, and the weather resistance is good.

Description

Technical Field

[0001] This invention relates to the field of civil engineering for outdoor firewalls in substations, and more specifically, to a precast reinforced concrete wall-beam-column integrated fire wall. Background Technology

[0002] Currently, substation outdoor firewalls are made of prefabricated steel structures, reinforced concrete frames, or cast-in-place reinforced concrete. While these types offer good fire protection, prefabricated steel structures require on-site installation of anchor bolts, steel frame joists, and decorative panels, making construction complex. The steel structure itself has poor outdoor durability, and due to its large size, replacement is complicated and can disrupt outdoor equipment, even necessitating power outages, which is detrimental to grid safety. Reinforced concrete frames are also complex to construct, requiring masonry infill, and have poor seismic resistance and stability, limiting their applicability, especially in earthquake zones. While cast-in-place reinforced concrete firewalls offer good fire protection, they require on-site pouring, resulting in slow construction, especially during winter when curing is lengthy. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the shortcomings of the prior art and provide a precast reinforced concrete wall beam column integrated splicing firewall.

[0004] This invention discloses a precast reinforced concrete integrated wall-beam-column fire wall, implemented through the following technical solution: the precast reinforced concrete integrated wall-beam-column fire wall comprises, from bottom to top, a concrete cushion layer, a precast reinforced concrete grooved strip foundation, a bottom integrated wall-beam-column component, an intermediate integrated wall-beam-column component, a top integrated wall-beam-column component, and an integrated concrete coping; the concrete cushion layer and the precast reinforced concrete grooved strip foundation are bonded together with micro-expansion concrete of not less than C20; the wall structures of the bottom integrated wall-beam-column component, the intermediate integrated wall-beam-column component, and the top integrated wall-beam-column component are identical, and the aforementioned identical wall structures consist of a left-side column, at least... The structure consists of an intermediate column and a right-side column. The side walls of two adjacent intermediate columns are respectively provided with a protruding rectangular column and a grooved rectangular column. The protruding rectangular column and the grooved rectangular column are interlocked. The bottom wall beam-column integrated component is provided with a bottom wall protrusion and a bottom wall top groove at the bottom and top, respectively. The bottom wall protrusion is used to interlock with the groove of the precast reinforced concrete grooved strip foundation. The middle wall beam-column integrated component is provided with a middle wall protrusion and a middle wall top groove at the bottom and top, respectively. The top wall beam-column integrated component is provided with a top wall protrusion at the bottom. The middle wall protrusion is interlocked with the bottom wall top groove, and the middle wall top groove is interlocked with the top wall protrusion. The top of the top wall beam-column integrated component is capped with integrated concrete.

[0005] The integrated wall-beam-column structure of the bottom layer and the integrated wall-beam-column structure of the middle layer are "I" shaped.

[0006] The integrated top-floor wall, beam, and column components, together with the integrated concrete coping, form an "I"-shaped structure.

[0007] Compared with the prior art, the beneficial effects of the present invention are: This invention offers superior durability, eliminating the need for on-site installation of anchor bolts, steel frame keels, decorative panels, and other components. The construction process is simple, and its high durability reduces the need for frequent replacements, thus improving the safety and reliability of substation operations. Construction is straightforward, requiring no masonry filling, and it exhibits excellent seismic resistance and stability, making it widely applicable, especially in earthquake-prone areas. The amount of concrete poured on-site is relatively small, meeting green construction requirements. It also offers good fire resistance, eliminates the need for on-site pouring, and allows for rapid construction, making it particularly suitable for projects with long winter curing periods and tight deadlines.

[0008] The wall structure of this invention can be customized according to the equipment size. This precast reinforced concrete wall, beam and column integrated splicing firewall not only improves the fire protection effect, but also greatly improves the construction speed of conventional substation firewalls by transporting the precast components to the site for hoisting and splicing after being prefabricated by the manufacturer. It also has good seismic resistance and has been greatly improved in terms of aesthetics, safety and applicability, and construction speed. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of a precast reinforced concrete wall, beam, and column integrated plug-in firewall structure. Figure 2 yes Figure 1 AA section view; Figure 3 yes Figure 1 BB cross-sectional view; Figure 4 yes Figure 1 CC section view; Figure 5 A cross-sectional view of a precast reinforced concrete strip foundation with grooves; Figure 6 Cross-sectional views of the integrated wall-beam-column structure for the bottom floor and the integrated wall-beam-column structure for the middle floor; Figure 7 This is a cross-sectional view of the integrated wall, beam, and column structure on the top floor. Detailed Implementation

[0010] To better understand the above-mentioned objects, features, and advantages of the present invention, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. The described embodiments are merely some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention. Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this invention pertains. The terminology used herein is for the purpose of describing specific embodiments only and is not intended to limit the present invention.

[0011] Combination Figures 1-7 This invention relates to a precast reinforced concrete integrated wall-beam-column fire wall, comprising, from bottom to top, a concrete cushion layer 1, a precast reinforced concrete grooved strip foundation 2, a bottom integrated wall-beam-column component 8, an intermediate integrated wall-beam-column component 9, a top integrated wall-beam-column component 10, and an integrated concrete coping 7. The concrete cushion layer 1 and the precast reinforced concrete grooved strip foundation 2 are bonded together with micro-expansion concrete of not less than C20. The walls of the bottom integrated wall-beam-column component 8, the intermediate integrated wall-beam-column component 9, and the top integrated wall-beam-column component 10 have identical structures. Each wall with the same structure consists of a left-side column 6, at least two intermediate columns, and a right-side column 5. The side walls of adjacent intermediate columns are respectively provided with protruding rectangular columns 11 and grooved rectangular columns 12, which are interlocked with each other. The bottom wall beam-column integrated component 8 is provided with bottom wall protrusion 3 and bottom wall top groove 4 at the bottom and top, respectively. The bottom wall protrusion is used to fit into the groove of the precast reinforced concrete grooved strip foundation 2. The middle wall beam-column integrated component 9 is provided with middle wall protrusion and middle wall top groove at the bottom and top, respectively. The top wall beam-column integrated component 10 is provided with top wall protrusion at the bottom. The middle wall protrusion fits into the bottom wall top groove, and the middle wall top groove fits into the top wall protrusion. The top of the top wall beam-column integrated component is capped with integrated concrete.

[0012] The integrated wall-beam-column component 8 and the integrated wall-beam-column component 9 of the middle layer are "I" shaped structures.

[0013] The integrated top-floor wall, beam, and column component 10 forms an "I"-shaped structure with the integrated concrete coping.

[0014] The construction process of this invention, a precast reinforced concrete integrated wall, beam, and column fireproof structure, is as follows: 1) After measuring and setting out the elevation and positioning the design location, excavate and compact the earthwork to the design elevation, and then install the concrete foundation layer 1 to ensure that it is horizontal and vertical. The gaps between the foundation layers are grouted with micro-expansion concrete of not less than C20 to ensure that it does not deform or shift. 2) After the concrete cushion layer 1 is installed and grouted, apply micro-expansion concrete of not less than C20 to the upper surface of the concrete cushion layer, and then install the precast reinforced concrete grooved strip foundation 2. The connection gap between the components of the precast reinforced concrete grooved strip foundation 2 is grouted a second time with micro-expansion concrete of not less than C20. 3) After the precast reinforced concrete grooved strip foundation 2 is installed, the bottom wall beam column integrated component 8 is installed and aligned (the integrated component is completed by casting and assembling a rectangular concrete column, rectangular beam and rectangular concrete wall in one piece. If the wall surface is to be decorated later, a secondary design is required according to the actual site conditions).

[0015] Before installation, the positioning axis and elevation of the lower beam protrusion of the integrated wall-beam-column component 8 and the groove of the precast reinforced concrete grooved strip foundation 2 should be checked, and the plane position and elevation should be inspected. After installation, the verticality, elevation and axis position should be corrected in a timely manner. After the correction is qualified, the on-site construction unit should reliably fix it to ensure that it will not tilt to the side, and perform secondary grouting at the bottom of the columns, beams and walls according to the design requirements.

[0016] 4) After the installation of the bottom layer wall beam column integrated component 8 is completed, install the middle layer wall beam column integrated component 9 and the top layer wall beam column integrated component 10. After each layer is installed, check the positioning axis and elevation, and check the plane position and elevation. After the correction is qualified, the on-site construction unit shall reliably fix the middle layer wall beam column integrated component 9 and the top layer wall beam column integrated component 10 to ensure that they will not tilt to the side.

[0017] 5) After the integrated wall beam column component 10 is installed, the integrated concrete capping 7 is installed and the plane position and elevation are checked. After all components are installed, the on-site construction unit will remove the supports after the grouting concrete has set.

[0018] Figure 2 yes Figure 1 The AA section view shows the installation of a precast reinforced concrete grooved strip foundation 2 on the concrete cushion layer 1.

[0019] Figure 3 yes Figure 1The BB sectional view is a top view of the integrated wall-beam-column component 9 of the middle layer. The dimensions of the wall-beam-column and the concrete grade are determined by the dimensions shown in the design drawings. The leftmost and rightmost sides of the integrated wall-beam-column component are rectangular sections. The integrated wall-beam-column component consists of a left column, at least two intermediate columns, and a right column. The side walls of two adjacent intermediate columns are respectively provided with a protruding rectangular column and a grooved rectangular column. The protruding rectangular column and the grooved rectangular column interlock with each other. The integrated wall-beam-column component 8, the integrated wall-beam-column component 9 of the middle layer, and the integrated wall-beam-column component of the top layer are also described. The structure of component 10 is the same. The bottom wall beam-column integrated component 8 is provided with a bottom wall protrusion and a bottom wall top groove at the bottom and top, respectively. The bottom wall protrusion is used to fit and connect with the groove of the precast reinforced concrete grooved strip foundation 2. The middle wall beam-column integrated component 9 is provided with a middle wall protrusion and a middle wall top groove at the bottom and top, respectively. The top wall beam-column integrated component 10 is provided with a top wall protrusion at the bottom. The middle wall protrusion fits into the bottom wall top groove, and the middle wall top groove fits into the top wall protrusion. The top of the top wall beam-column integrated component is capped with integrated concrete.

[0020] Figure 4 yes Figure 1 The CC section view is a cross-sectional view of the concrete cushion layer 1, the precast reinforced concrete grooved strip foundation 2, the bottom wall beam column integrated component 8, the middle wall beam column integrated component 9, and the top wall beam column integrated component 10.

[0021] Figure 5 This is a cross-sectional view of a precast reinforced concrete strip foundation with grooves.

[0022] Figure 6 The diagram shows the cross-sectional views of the integrated wall-beam-column component 8 (bottom layer) and the integrated wall-beam-column component 9 (middle layer). The integrated wall-beam-column component 8 and the integrated wall-beam-column component 9 are "I" shaped structures.

[0023] Figure 7 This is a cross-sectional view of the integrated wall-beam-column component 10. The integrated wall-beam-column component 10 and the integrated concrete coping form an "I" shaped structure.

[0024] The working principle of this invention is as follows: based on the actual site conditions and design drawings, the integrated reinforced concrete wall, beam, and column fire wall is prefabricated to the specifications and dimensions required by the on-site equipment. On-site construction preparation includes surveying and setting out, excavating the earth to the corresponding depth, constructing formwork, pouring the foundation layer, setting up the formwork, tying the reinforcing bars, and then pouring the grooved reinforced concrete foundation. After transporting the integrated reinforced concrete wall, beam, and column components to the construction site, hoisting machinery installs them in the corresponding positions according to the positioning, and then backfilling the earthwork completes the construction and installation.

[0025] The above description is only a preferred embodiment of the present invention. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A precast reinforced concrete integrated wall, beam, and column fireproof wall, characterized in that, The structure comprises, from bottom to top, a concrete cushion layer, a precast reinforced concrete grooved strip foundation, a bottom-layer integrated wall-beam-column component, an intermediate-layer integrated wall-beam-column component, a top-layer integrated wall-beam-column component, and an integrated concrete coping. The concrete cushion layer and the precast reinforced concrete grooved strip foundation are bonded together with micro-expansion concrete of grade not lower than C20. The walls of the bottom-layer, intermediate-layer, and top-layer integrated wall-beam-column components have identical structures. Each wall with the same structure consists of a left-side column, at least one intermediate column, and a right-side column. The sidewalls of two adjacent intermediate columns are respectively provided with… The structure comprises a convex rectangular column and a grooved rectangular column, which interlock with each other. The bottom layer wall-beam-column integrated component has a bottom wall convex joint and a bottom wall top groove at its bottom and top, respectively. The bottom wall convex joint is used to interlock with the groove of the precast reinforced concrete grooved strip foundation. The middle layer wall-beam-column integrated component has a middle layer wall convex joint and a middle layer wall top groove at its bottom and top, respectively. The top layer wall-beam-column integrated component has a top layer wall convex joint at its bottom. The middle layer wall convex joint interlocks with the bottom wall top groove, and the middle layer wall top groove interlocks with the top layer wall convex joint. The top of the top layer wall-beam-column integrated component is capped with integrated concrete.

2. The precast reinforced concrete integrated wall-beam-column fireproof wall according to claim 1, characterized in that, The integrated wall-beam-column structure of the bottom layer and the integrated wall-beam-column structure of the middle layer are "I" shaped.

3. The precast reinforced concrete integrated wall-beam-column fireproof wall according to claim 1, characterized in that, The integrated top-floor wall, beam, and column components, together with the integrated concrete coping, form an "I"-shaped structure.

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