Mounting jig frame and construction method thereof

Abstract

The embodiment of the invention provides an installation jig frame and a construction method thereof, the installation jig frame is applied to installation of electrical and pipeline in MiMEP, and the installation jig frame comprises a frame body, a concrete precast slab and a fixing assembly; the concrete precast slab is arranged at the top of the frame body through the fixing assembly; the concrete precast slab is used for fixing electricity and pipelines in the MiMEP; the frame body comprises a left supporting frame, a right supporting frame and a connecting beam. The left supporting frame is fixedly connected to the right supporting frame through the connecting beam. The left supporting frame and the right supporting frame are parallel to each other and are symmetrically arranged at the two ends of the connecting beam. In the embodiment, after the concrete prefabricated plate is arranged at the top of the frame body through the fixing assembly, electrical and pipelines in the MiMEP can be arranged on the frame body through the concrete prefabricated plate so as to provide operation space for installation of the electrical and pipelines, and the construction efficiency is remarkably improved.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, in particular to a tire frame suitable for installation and a construction method thereof. Background Art

[0002] MiMEP (Multi-trade integrated Mechanical Electrical & Plumbing) is an integrated installation technology that combines mechanical, electrical and plumbing engineering. Its essence is a combination of offline prefabrication and on-site assembly. That is, electrical and mechanical components are manufactured in the factory in advance and then transported to the construction site for assembly, thereby simplifying the on-site installation process and significantly shortening the construction time. MiMEP technology is widely used in the field of building corridor construction, especially in the installation of electrical and plumbing.

[0003] The traditional way of installing electrical and pipelines in building corridors is usually to measure, cut, connect, and drill holes on site. It can be seen that the traditional way of installing electrical and pipelines in building corridors is severely limited by the limitation of on-site space. As a result, the construction space available to construction workers is limited, resulting in low construction efficiency. Summary of the invention

[0004] The embodiments of the present invention provide an installation frame and a construction method thereof, aiming to solve the problem of low construction efficiency caused by limited operating space for construction workers in traditional electrical and pipeline installation methods.

[0005] In the first aspect, an embodiment of the present invention provides an installation frame, which is used for the installation of electrical and pipelines in MiMEP, and comprises: a frame, a precast concrete panel and a fixing assembly; the precast concrete panel is arranged on the top of the frame through the fixing assembly; the precast concrete panel is used to fix the electrical and pipelines in MiMEP; the frame comprises a left support frame, a right support frame and a connecting beam; the left support frame is fixedly connected to the right support frame through the connecting beam; the left support frame and the right support frame are parallel to each other and are symmetrically arranged at both ends of the connecting beam.

[0006] In some embodiments, the left support frame includes a left crossbeam and a left column; the left crossbeam is vertically fixed on the top of two adjacent left columns; and the left crossbeam is parallel to the precast concrete panel.

[0007] In some embodiments, the left column includes a first sub-left column, a second sub-left column and a third sub-left column; the second sub-left column is located between the first sub-left column and the third sub-left column; the first sub-left column, the second sub-left column and the third sub-left column are equally spaced and perpendicular to the precast concrete panel.

[0008] In some embodiments, the left cross beam includes a first sub-left cross beam and a second sub-left cross beam; the first sub-left cross beam and the second sub-left cross beam are symmetrically arranged about the second sub-left upright; the two ends of the first sub-left cross beam are respectively fixedly connected to the first sub-left upright and the second sub-left upright; the two ends of the second sub-left cross beam are respectively fixedly connected to the second sub-left upright and the third sub-left upright.

[0009] In some embodiments, the right support frame includes a right crossbeam and a right column; the right crossbeam is vertically fixed to the top of the right column; the right crossbeam is parallel to the precast concrete slab; the right crossbeam faces the left crossbeam, and the right column faces the left column.

[0010] In some embodiments, the right pillar includes a first sub-right pillar, a second sub-right pillar and a third sub-right pillar; the second sub-right pillar is located between the first sub-right pillar and the third sub-right pillar; the first sub-right pillar faces the first sub-left pillar, the second sub-right pillar faces the second sub-right pillar, and the third sub-right pillar faces the third sub-left pillar.

[0011] In some embodiments, the right cross beam includes a first sub-right cross beam and a second sub-right cross beam; the first sub-right cross beam and the second sub-right cross beam are symmetrically arranged about the second sub-right upright column; the two ends of the first sub-right cross beam are respectively fixedly connected to the first sub-right upright column and the second sub-right upright column; the two ends of the second sub-right cross beam are respectively fixedly connected to the second sub-right upright column and the third sub-right upright column.

[0012] In some embodiments, the fixing assembly includes a channel steel and a first connecting member; the top of the channel steel is fixedly connected to the precast concrete panel through the first connecting member; and the bottom of the channel steel is arranged on the top of the frame.

[0013] In some embodiments, the fixing assembly further includes a pad and a second connecting member; the pad is fixed to the horizontal ground via the second connecting member; and the bottom of the frame is vertically fixed to the surface of the pad.

[0014] In a second aspect, an embodiment of the present invention further provides a construction method for installing a tire frame, which is applied to the installation of a tire frame in any of the above embodiments, and the method comprises:

[0015] Determine the length and width of the frame according to the precast concrete slab;

[0016] Preset positioning lines and through holes on the pad, and fix the pad to the horizontal ground through a second connecting piece;

[0017] The left support frame and the right support frame are fixed on the gasket by full penetration welding;

[0018] Full penetration welding of the two ends of the connecting beam to the left support frame and the right support frame respectively;

[0019] The electrical and piping components in MiMEP are hoisted and fixed to the hangers at the bottom of the precast concrete slab.

[0020] The embodiment of the present invention provides an installation frame and a construction method thereof, which are applied to the installation of electrical and pipelines in MiMEP, and include: a frame, a precast concrete panel, and a fixing assembly; the precast concrete panel is arranged on the top of the frame through the fixing assembly; the precast concrete panel is used to fix the electrical and pipelines in MiMEP; the frame includes a left support frame, a right support frame, and a connecting beam; the left support frame is fixedly connected to the right support frame through the connecting beam; the left support frame and the right support frame are parallel to each other and symmetrically arranged at both ends of the connecting beam. In this embodiment, after the precast concrete panel is arranged on the top of the frame through the fixing assembly, the electrical and pipelines in MiMEP can be arranged on the frame through the precast concrete panel, which provides an operating space for their installation and significantly improves the construction efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings required for use in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying any creative work.

[0022] Figure 1 A left-side structural schematic diagram of a tire mounting frame provided in an embodiment of the present invention;

[0023] Figure 2 A schematic diagram of the front view of the tire mounting frame provided by an embodiment of the present invention;

[0024] Figure 3 A schematic diagram of a top view of a tire mounting frame provided in an embodiment of the present invention;

[0025] Figure 4 A schematic flow chart of a construction method for installing a tire frame provided in an embodiment of the present invention.

[0026] The figures are as follows:

[0027] 100, frame; 110, left support frame; 111, left crossbeam; 1111, first sub-left crossbeam; 1112, second sub-left crossbeam; 112, left column; 1121, first sub-left column; 1122, second sub-left column; 1123, third sub-left column; 120, right support frame; 121, right crossbeam; 1211, first sub-right crossbeam; 1212, second sub-right crossbeam; 122, right column; 1221, first sub-right column; 1222, second sub-right column; 1223, third sub-right column; 130, connecting beam; 200, precast concrete slab; 300, fixing assembly; 310, channel steel; 320, first connecting piece; 330, pad. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0029] It should be understood that when used in this specification and the appended claims, the terms "include" and "comprises" indicate the presence of described features, integers, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or combinations thereof.

[0030] It should also be understood that the terms used in this specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. As used in the specification of the present invention and the appended claims, unless the context clearly indicates otherwise, the singular forms "a", "an" and "the" are intended to include plural forms.

[0031] It should be further understood that the term "and / or" used in the present description and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes these combinations.

[0032] See also Figures 1 to 4 , Figure 1 A left-side structural schematic diagram of a tire mounting frame provided in an embodiment of the present invention; Figure 2 A schematic diagram of the front view of the tire mounting frame provided by an embodiment of the present invention; Figure 3 A schematic diagram of a top view of a tire mounting frame provided in an embodiment of the present invention; Figure 4 A schematic flow chart of a construction method for installing a tire frame provided in an embodiment of the present invention.

[0033] See again Figure 1 as well as Figure 3 The installation frame provided in the embodiment of the present invention is applied to the installation of electrical and pipelines in MiMEP, and includes: a frame 100, a precast concrete panel 200 and a fixing assembly 300; the precast concrete panel 200 is arranged on the top of the frame 100 through the fixing assembly 300; the precast concrete panel 200 is used to fix the electrical and pipelines in MiMEP; the frame 100 includes a left support frame 110, a right support frame 120 and a connecting beam 130; the left support frame 110 is fixedly connected to the right support frame 120 through the connecting beam 130; the left support frame 110 and the right support frame 120 are parallel to each other and are symmetrically arranged at both ends of the connecting beam 130.

[0034] In this embodiment, the concrete precast panel 200 is fixed to the top of the frame 100 by the fixing assembly 300, so as to be used for hoisting and fixing the electrical and pipelines in the MiMEP. According to the construction requirements, the height of the frame 100 is usually set to 1900mm-2000mm, the length of the frame 100 is set to 5800mm-6000mm, and the width of the frame 100 is set to 1500mm-1700mm. Since the frame 100 is fixed by the left support frame 110, the right support frame 120 and the connecting beam 130, and the left support frame 110 and the right support frame 120 are parallel to each other and symmetrically arranged. In other words, the left support frame 110 is fixed to one end of the connecting beam 130 by full penetration welding, and the right support frame 120 is fixed to the other end of the connecting beam 130 by full penetration welding, wherein the connecting beam 130 is perpendicular to the left support frame 110 and the right support frame 120 which are parallel to each other and symmetrically arranged, thereby forming the frame 100. Therefore, the height of the frame 100 is the height of the left support frame 110 and the right support frame 120 , the length of the frame 100 is the length of the left support frame 110 and the right support frame 120 , and the width of the frame 100 is the length of the connecting beam 130 .

[0035] In specific practical applications, the electrical and pipelines in MiMEP are fixed to the lower surface of the precast concrete panel 200 through a hanger, wherein the lower surface of the precast concrete panel 200 is the end surface where the precast concrete panel 200 contacts the frame 100. According to the "2023 Chinese Residents' Height, Weight and Health Data Report" and other relevant statistical data, the average height of adult males in the southern region is about 168 cm, and the average height of adult females is about 158 ​​cm. The height of most people fluctuates within the above-mentioned range. Therefore, the precast concrete panel 200 is fixed to the top of the frame 100 with a height in the range of 1900mm-2000mm by the fixing assembly 300, and the electrical and pipelines in the MiMEP are fixed to the lower surface of the precast concrete panel 200 by hanging rods, so that there is more suitable space for construction personnel to set up the electrical and pipelines on the hanging rods under the frame 100, which will not cause inconvenience in operation due to the high space, nor will it feel oppressive due to the low space. It is convenient for construction personnel to set up the electrical and pipelines on the hanging rods, thereby improving the convenience and efficiency of construction.

[0036] At the same time, it has been found in practice that precast concrete panels 200 with a length exceeding 6 meters are very easy to crack, and precast concrete panels 200 with a length less than 5 meters are not conducive to improving construction efficiency. Therefore, in order to ensure that the quality and load-bearing capacity of the precast concrete panels 200 can meet the construction requirements while completing the construction work efficiently, the length of the frame 100 is usually set within the range of 5800mm-6000mm in accordance with the length range of the precast concrete panels 200.

[0037] Since the electrical and pipelines in MiMEP are set up in the corridor of the building, the frame 100 is set up in the corridor of the building structure to realize the laying of electrical and pipelines in the corridor. Therefore, in order to better adapt to the width of the corridor, the frame 100 can be reasonably set up in the corridor, fully utilize the corridor space, realize the function of laying electrical and pipelines in the corridor, and ensure that a complete concrete precast panel 200 can be placed on the top of the frame 100, and the width of the frame 100 is set to 1500mm-1700mm.

[0038] In addition, the left support frame 110, the right support frame 120 and the connecting beam 130 constituting the frame 100 are all made of steel of specification Q235B, which is conducive to reducing costs while meeting the bearing capacity of the frame 100. The surface of the frame 100, that is, the surface of the left support frame 110, the right support frame 120 and the connecting beam 130, is painted with primer 50u paint. First, the main component material of the frame 100 is steel. In the construction environment and subsequent use process, it is easy to contact with oxygen, moisture and other corrosive substances in the air, and rust due to oxidation reaction. Therefore, the paint painted with primer 50u can form a protective film on the metal surface, isolate the metal from the corrosive medium outside, slow down the corrosion rate of the metal, and extend the service life of the frame 100; second, the paint has a certain insulation performance. Applying it on the surface of the frame 100 can increase the insulation effect of the frame 100, reduce the risk of electric shock caused by leakage of electrical equipment, and improve the safety of the construction site.

[0039] In one embodiment, if Figure 1 , Figure 2 as well as Figure 3 As shown, the left support frame 110 includes a left crossbeam 111 and a left column 112 ; the left crossbeam 111 is vertically fixed on the top of two adjacent left columns 112 ; the left crossbeam 111 is parallel to the precast concrete panel 200 .

[0040] In this embodiment, the left cross beam 111 and the left column 112 are made of Q235B steel to ensure sufficient bearing capacity and stability. The left cross beam 111 can be made of I-beam, which has good bending resistance and can effectively resist the lateral bending force generated by the concrete precast panel 200, electrical and pipelines, etc. The left column 112 can be made of channel steel or square steel pipe. Channel steel is easy to connect with other structural parts, while square steel pipe has more balanced force performance in all directions.

[0041] The left crossbeam 111 and the left column 112 are fixedly connected by full penetration welding, and a suitable welding process can be selected, such as manual arc welding or carbon dioxide gas shielded welding. Before welding, the welding part is cleaned to remove impurities such as oil, rust, etc. to ensure the welding quality. The height and length of the weld are determined according to the design force requirements to ensure that the strength of the weld is not lower than the strength of the parent material. The left crossbeam 111 is vertically fixed on the top of the two adjacent left columns 112 to form a stable frame structure. This structure can effectively disperse and transmit the load from the concrete precast panel 200 and the electrical and pipeline loads, so that the left support frame 110 can withstand a large weight without deformation or collapse. For example, when heavy electrical equipment is placed on the concrete precast panel 200, the left crossbeam 111 transfers the weight of the equipment to the left column 112, and the left column 112 then transfers the force to the ground. The whole structure works together to ensure the stability of the frame 100.

[0042] The left crossbeam 111 is parallel to the precast concrete panel 200, ensuring that one side of the precast concrete panel 200 can be evenly placed on the left support frame 110, avoiding cracks or breaks in the precast concrete panel 200 due to uneven support. At the same time, the parallel left crossbeam 111 provides a clear reference for the installation of the precast concrete panel 200, facilitating the installation operation of the construction personnel and improving the installation accuracy and efficiency.

[0043] In one embodiment, if Figure 2 as well as Figure 3 As shown, the left column 112 includes a first sub-left column 1121, a second sub-left column 1122 and a third sub-left column 1123; the second sub-left column 1122 is located between the first sub-left column 1121 and the third sub-left column 1123; the first sub-left column 1121, the second sub-left column 1122 and the third sub-left column 1123 are equidistantly spaced and perpendicular to the precast concrete panel 200.

[0044] Specifically, the left cross beam 111 includes a first sub-left cross beam 1111 and a second sub-left cross beam 1112; the first sub-left cross beam 1111 and the second sub-left cross beam 1112 are symmetrically arranged about the second sub-left upright 1122; the two ends of the first sub-left cross beam 1111 are respectively fixedly connected to the first sub-left upright 1121 and the second sub-left upright 1122; the two ends of the second sub-left cross beam 1112 are respectively fixedly connected to the second sub-left upright 1122 and the third sub-left upright 1123.

[0045] In this embodiment, the first left column 1121, the second left column 1122, the third left column 1123, the first left beam 1111 and the second left beam 1112 are all made of steel with a specification of Q235B. After the first left column 1121, the second left column 1122, the third left column 1123, the first left beam 1111 and the second left beam 1112 enter the site, they are sampled and tested for their yield strength, tensile strength, elongation, etc. They can only be used after they are qualified. Each left column 112 and the left beam 111 are all CNC cutting technology to ensure dimensional accuracy, and the cutting error is controlled within ±0.5mm to ensure accurate splicing of each component. For example, the length of the first left column 1121 is cut according to the design requirements, laying the foundation for subsequent installation. The connection portion between the first left sub-beam 1111 and the first left sub-column 1121 adopts a groove processing technology to increase the welding area and improve the welding strength. The groove angle is determined according to the welding process requirements and is generally about 60° to ensure the welding quality.

[0046] The number of left uprights 112 in the left support frame 110 is 3, which are the first sub-left upright 1121, the second sub-left upright 1122 and the third sub-left upright 1123. The number of left crossbeams 111 in the left support frame 110 is 2, which are the first sub-left crossbeam 1111 and the second sub-left crossbeam 1112. Figure 1 The left view structure diagram of the left side is used as an example to illustrate. The left column 112 from left to right is the first sub-left column 1121, the second sub-left column 1122 and the third sub-left column 1123. The left crossbeam 111 from left to right is the first sub-left crossbeam 1111 and the second sub-left crossbeam 1112. The specifications and sizes of the first sub-left column 1121, the second sub-left column 1122 and the third sub-left column 1123 are the same, but the positions are different. Similarly, the specifications and sizes of the first sub-left crossbeam 1111 and the second sub-left crossbeam 1112 are the same, but the positions are different. The standardized design and manufacture of each left column 112 and the left crossbeam 111 facilitate rapid assembly at the construction site. Construction personnel can complete the splicing of various components in an orderly manner according to clear installation steps to improve construction efficiency.

[0047] The left side of the first left sub-beam 1111 is vertically welded and fixed to the first left sub-pillar 1121, and the right side of the first left sub-beam 1111 is vertically welded and fixed to one side of the second left sub-pillar 1122; the left side of the second left sub-beam 1112 is vertically welded and fixed to the other side of the second left sub-pillar 1122, and the right side of the second left sub-beam 1112 is vertically welded and fixed to the third left sub-pillar 1123. After the first left sub-pillar 1121, the first left sub-beam 1111, the second left sub-pillar 1122, the second left cross beam 1112, and the third left sub-pillar 1123 are connected and fixed as a whole, the whole is in the same plane in the longitudinal direction. The first sub-left column 1121, the second sub-left column 1122, and the third sub-left column 1123 are equidistantly spaced and perpendicular to the precast concrete panel 200, and the first sub-left crossbeam 1111 and the second sub-left crossbeam 1112 are symmetrically arranged and connected to each left column 112 to form a stable mechanical structure. This structure can evenly distribute the weight of the precast concrete panel 200 and electrical and pipelines, and improve the bearing capacity of the left support frame 110. Compared with a single column and beam structure, this structure has high redundancy. If a sub-left column or sub-left crossbeam is accidentally damaged, the other parts can still share the load, maintain overall stability, and reduce the risk of structural failure.

[0048] Specifically, when welding and fixing, carbon dioxide gas shielded welding can be used for welding. The current, voltage, welding speed and other parameters are set according to the material and thickness of the steel, such as current 180-220A, voltage 22-26V, welding speed 25-30cm / min, to ensure that the weld is uniform and full, without defects such as pores and slag inclusions. The remaining parts to be welded are welded in the same way. After welding is completed, the weld is inspected by ultrasonic flaw detection to ensure that the weld quality meets the design requirements.

[0049] In one embodiment, if Figure 1 as well as Figure 3 As shown, the right support frame 120 includes a right cross beam 121 and a right column 122; the right cross beam 121 is vertically fixed on the top of the right column 122; the right cross beam 121 is parallel to the precast concrete panel 200; the right cross beam 121 is opposite to the left cross beam 111, and the right column 122 is opposite to the left column 112.

[0050] In this embodiment, the right cross beam 121 and the right column 122 are made of Q235B steel with the same quality standard as the left column 112 and the left cross beam 111 in the left support frame 110. The structure and construction are the same as the left column 112 and the left cross beam 111. After the right cross beam 121 and the right column 122 enter the site, they are sampled in batches for mechanical property testing, and can only be used for construction after passing the test. The right cross beam 121 and the right column 122 are fixed together by a full penetration welding process. Before welding and fixing, the right cross beam 121 and the right column 122 are cut and processed using CNC plasma cutting technology. This technology has high cutting accuracy, smooth incisions, and the cutting error is controlled within ±0.3mm. Before cutting, the steel surface is accurately marked according to the design size to ensure that the cutting size is accurate.

[0051] Specifically, the number of right columns 122 is 3, and the number of right cross beams 121 is 2. The number is the same as that of the left column 112 and the left cross beam 111, so that the right support frame 120 formed after the right column 122 and the right cross beam 121 are fixed is consistent with the left support frame 110. The two ends of the right cross beam 121 are respectively fixed to the top of the right column 122 vertically and fully penetrated by welding, and are arranged opposite to the left cross beam 111 and the left column 112, forming a symmetrical structural system. When the concrete precast panel 200 carries electrical and pipeline equipment, the load can be evenly distributed to the left support frame 110 and the right support frame 120, avoiding local stress concentration. In addition, the right column 122 and the left column 112 work together to provide sufficient lateral rigidity to prevent the frame 100 from tilting or collapsing under the action of lateral force.

[0052] At the connection part between the right crossbeam 121 and the right column 122, a welding groove is made by mechanical processing, for example, the groove is V-shaped, the angle is 60°, the blunt edge is 2mm, and the gap is 2mm. This groove design can ensure that the welding material is fully filled during welding and improve the strength of the welded joint. After the processing is completed, the groove surface is polished to remove impurities such as oil and rust to prevent defects such as pores and slag inclusions during welding.

[0053] In one embodiment, if Figure 3 As shown, the right column 122 includes a first sub-right column 1221, a second sub-right column 1222 and a third sub-right column 1223; the second sub-right column 1222 is located between the first sub-right column 1221 and the third sub-right column 1223; the first sub-right column 1221 faces the first sub-left column 1121, the second sub-right column 1222 faces the second sub-right column 1222, and the third sub-right column 1223 faces the third sub-left column 1123.

[0054] Specifically, the right cross beam 121 includes a first sub-right cross beam 1211 and a second sub-right cross beam 1212; the first sub-right cross beam 1211 and the second sub-right cross beam 1212 are symmetrically arranged about the second sub-right upright column 1222; the two ends of the first sub-right cross beam 1211 are respectively fixedly connected to the first sub-right upright column 1221 and the second sub-right upright column 1222; the two ends of the second sub-right cross beam 1212 are respectively fixedly connected to the second sub-right upright column 1222 and the third sub-right upright column 1223.

[0055] In this embodiment, Figure 3 The direction shown in the top view structural diagram is used as an example for explanation. The right columns 122 in the horizontal direction from left to right are respectively the first sub-right column 1221, the second sub-right column 1222 and the third sub-right column 1223, wherein the second sub-right column 1222 is located between the first sub-right column 1221 and the third sub-right column 1223. The left end of the first sub-right crossbeam 1211 is vertically welded and fixed to the first sub-right column 1221, and the right end thereof is vertically welded and fixed to one side of the second sub-right column 1222; the left end of the second sub-right crossbeam 1212 is vertically welded and fixed to the other side of the second sub-right column 1222, and the right end thereof is vertically welded and fixed to the third sub-right column 1223. The right column 122 has the same specifications and dimensions as the left column 112 and is correspondingly arranged, and the right crossbeam 121 has the same specifications and dimensions as the left crossbeam 111 and is correspondingly arranged, so that the right support frame 120 formed by the fixed connection between the right column 122 and the right crossbeam 121 has the same size as the left support frame 110 formed by the fixed connection between the left column 112 and the left crossbeam 111.

[0056] When installing and fixing at the construction site, the total station can be used to accurately measure the installation positions of the three sub-right columns 122 on the ground according to the design drawings and make marks. At the same time, measure the elevations of the tops of the first sub-right column 1221, the second sub-right column 1222, and the third sub-right column 1223 to ensure that they are on the same horizontal plane and the elevation error is controlled within ±3mm. For example, based on the reference point of the building ground, the center position of the first sub-right column 1221 is measured by the total station, and a cross line is marked on the ground as the positioning reference for the column installation.

[0057] Use a lifting tool (e.g., a crane) to lift the first right sub-column 1221 to the marked position and fix it with temporary support. Use a theodolite to adjust its verticality so that its vertical deviation is controlled within ±2mm. Then install the second right sub-column 1222 and the third right sub-column 1223 in sequence, ensuring that the spacing between each right sub-column 122 meets the design requirements and the spacing error is controlled within ±3mm. During the installation process, repeatedly check the verticality and spacing of each right sub-column 122 to ensure installation accuracy.

[0058] Lift the first right crossbeam 1211 to the top of the first right column 1221 and the second right column 1222, align the two ends of the crossbeam with the welding grooves on the top of the column accurately, and use a positioning fixture to temporarily fix it. Check the horizontality of the crossbeam and the verticality of the column again. After ensuring that they are correct, carbon dioxide gas shielded welding can be used for welding. After each weld is completed, perform an appearance inspection and repair any defects in time. After welding is completed, perform ultrasonic flaw detection on all welds, with a flaw detection ratio of not less than 30% to ensure that the weld quality meets the design requirements. Install the second right crossbeam 1212 in the same way. Finally, use a total station to measure the alignment of the first right column 1221 with the first left column 1121, the second right column 1222 with the second left column 1122, and the third right column 1223 with the third left column 1123. By fine-tuning the position of each right column 122, the alignment error of each corresponding column is controlled within ±3mm. At the same time, a level is used to measure the parallelism between the first right sub-beam 1211 and the second right sub-beam 1212 and the precast concrete panel 200. Fine adjustments can be made by adding or removing gaskets at the bottom of the right column 122 to ensure that the beams are parallel to the precast concrete panel 200, and the parallelism error is controlled within ±1mm / m. After the adjustment is completed, the right support frame 120 is finally fixed to ensure that its position is stable during the subsequent construction process.

[0059] In addition, the left support frame 110 and the right support frame 120 are connected and fixed by the connecting beam 130 to form the frame body 100. In the present embodiment, the connecting beam 130 includes a first connecting beam and a second connecting beam, and the first connecting beam is directly opposite to the second connecting beam, wherein one end of the first connecting beam is vertically welded and fixed to the first sub-left column 1121, and the other end is vertically welded and fixed to the first sub-right column 1221; one end of the second connecting beam is vertically welded and fixed to the third sub-left column 1123, and the other end is vertically welded and fixed to the third sub-right column 1223.

[0060] In one embodiment, if Figure 1 as well as Figure 2 As shown, the fixing assembly 300 includes a channel steel 310 and a first connecting member 320 ; the top of the channel steel 310 is fixedly connected to the precast concrete panel 200 via the first connecting member 320 ; the bottom of the channel steel 310 is disposed at the top of the frame 100 .

[0061] In this embodiment, a connecting member through hole is preset on the concrete precast panel 200. After the channel steel 310 is welded and fixed to the top of the frame 100, one end of the first connecting member 320 is matched with the connecting member through hole on the concrete precast panel 200, and the other end is fixedly connected to the channel steel 310, so as to fix the concrete precast panel 200 to the top of the frame 100. The channel steel 310 is fixed to the top of the left support frame 110 and the right support frame 120 by welding to form an integral bearing structure, which can effectively transfer the load from the concrete precast panel 200 and the electrical and pipeline equipment thereon to the frame 100. The welding connection ensures the firmness between the channel steel 310 and the support frame, and can withstand large pulling, pressing, bending and other forces, so as to avoid displacement or loosening of the channel steel 310 during use.

[0062] Specifically, the channel steel 310 can be made of Q235B steel to ensure that its strength and toughness can meet the load-bearing requirements. The specifications of the channel steel 310 can be selected according to the load-bearing requirements of the specific construction design. The two ends of the channel steel 310 are respectively fixed to the top of the left support frame 110 and the top of the right support frame 120. The channel steel 310 is fixedly connected to the top of the left support frame 110 and the right support frame 120 by welding. The first connecting member 320 can use a high-strength bolt with a bolt specification of M16 and a strength grade of 8.8 to ensure sufficient connection strength. Before use, the bolt is prevented from loosening, such as using a loosening nut or applying a thread locking agent on the bolt to prevent loosening due to vibration during use. At the same time, the hole diameter of the connecting member through hole preset on the concrete precast panel 200 should be determined according to the specifications of the first connecting member 320, generally 0.5-1mm larger than the outer diameter of the bolt, for easy installation, and its position needs to be accurately designed according to the arrangement position and spacing of the channel steel 310. The construction personnel can connect the first connecting member 320 to the channel steel 310 through the connecting member through hole according to the designed position, which is simple to operate and improves the construction efficiency. Moreover, this connection method is easy to disassemble and adjust, and the concrete precast panel 200 can be easily disassembled during subsequent maintenance and replacement of the frame 100.

[0063] For welding of multiple channel steels 310, the spacing between the channel steels 310 should be uniform and arranged according to the design requirements. When welding multiple channel steels 310, the parallelism between the channel steels 310 should be ensured, and a level can be used for measurement and adjustment. Multiple channel steels 310 are arranged according to the load-bearing requirements, and the specifications of the channel steels 310 can be adjusted according to actual conditions, so that the bearing capacity of the entire structure can be flexibly configured. At the same time, the distribution and welding method of the channel steels 310 ensure the uniform distribution of the load, avoid local stress concentration, and improve the overall bearing capacity of the frame 100, so that it can withstand heavier electrical and pipeline equipment.

[0064] In one embodiment, if Figure 1 as well as Figure 2 As shown, the fixing assembly 300 further includes a pad 330 and a second connecting member; the pad 330 is fixed to the horizontal ground via the second connecting member; and the bottom of the frame 100 is vertically fixed to the surface of the pad 330 .

[0065] In this embodiment, the pad 330 can be made of Q235B steel plate. The pad 330 of appropriate thickness is selected according to the size and load-bearing requirements of the frame 100 to provide stable support and fixation. The area of ​​the pad 330 should be designed according to the area of ​​the bottom of the frame 100 to ensure that it can completely cover the bottom of the frame 100 and extend outward for a certain distance. The extension length is usually about 100-200mm, providing a wider support surface for the frame 100. At the same time, a pad 330 with higher flatness is preferred, and its surface flatness deviation is controlled within ±0.5mm to ensure the stability of the frame 100 after installation and fixation. The pad 330 can compensate for the unevenness of the ground to a certain extent, making the installation of the frame 100 more convenient and reducing the installation difficulties caused by the uneven ground.

[0066] The second connecting member (not shown) can be an expansion bolt, and a suitable specification can be selected according to the total weight of the frame 100 and the use environment, such as an expansion bolt of M16 or M20. The material of the expansion bolt is 8.8 grade high-strength alloy steel to ensure sufficient anchoring strength. At the same time, in order to ensure the reliability of the connection, a flat washer and a spring washer can be equipped, the flat washer is used to disperse the pressure, and the spring washer is used to prevent the nut from loosening.

[0067] Specifically, in the process of installing the frame 100 and the pad 330, first, the installation position of the pad 330 can be marked on the horizontal ground to ensure the accuracy of the position. The pad 330 is placed on the marked position, and can be adjusted using tools such as a laser level to ensure that the pad 330 is in a horizontal state. Then, a hole matching the specifications of the expansion bolt is drilled on the ground using an impact drill, and the depth of the hole is 20-30 mm deeper than the length of the expansion bolt to ensure that the expansion bolt has sufficient anchoring depth. The expansion bolt is placed in the hole, and the nut is tightened with a wrench to expand the expansion bolt and firmly fixed on the ground. When tightening the nut, a torque wrench can be used, and the torque is controlled within the specified range according to the specifications and material of the expansion bolt, generally 150-200 N·m. Finally, the bottom of the frame 100 and the surface of the pad 330 are cleaned, and after removing impurities such as oil, rust, etc., a positioning device is used to align the bottom of the frame 100 with the pad 330 and fix the bottom of the frame 100 on the pad 330. The pad 330 and the second connecting member together form a stable fixing assembly 300 to ensure the stability of the frame 100 and reduce safety hazards caused by structural instability, especially when construction workers are performing electrical and pipeline installation operations, effectively preventing safety accidents caused by shaking or collapse of the frame 100.

[0068] like Figure 4 As shown, an embodiment of the present invention further provides a construction method for installing a tire frame, which is applied to the installation of a tire frame in any of the above embodiments, and the method includes:

[0069] S1. Determine the length and width of the frame according to the precast concrete slab.

[0070] In this embodiment, before construction, the length of the precast concrete panel 200 is first accurately measured, and the length of the frame 100 is set by taking into full consideration various factors during installation and use (e.g., thermal expansion and contraction, deformation margin of the precast panel itself, etc.). The length of the frame 100 should be appropriately longer than the length of the precast concrete panel 200, and a margin of 50-100 mm can generally be reserved. For example, if the length of the precast concrete panel 200 is 5800 mm, the length of the frame 100 can be set to 5850-5900 mm. For the width, the installation space and operation space of the electrical and pipelines should also be taken into consideration. According to the width of the precast concrete panel 200 and the construction specifications, the frame 100 is set to an appropriate width to ensure that the personnel have sufficient operating space.

[0071] In addition, the load-bearing capacity of the frame 100 can be calculated according to the principle of structural mechanics to ensure that it can bear the weight of the electrical equipment and pipelines. By calculating the bending, shear, and compression resistance of the frame 100 under different materials and sizes, the structural size and material selection of the frame 100 can be adjusted, such as using finite element analysis software to simulate the structure of the frame 100, and optimizing the design of the frame 100 according to the calculation results.

[0072] S2. Preset positioning lines and through holes on the pad, and fix the pad to the horizontal ground through a second connecting piece.

[0073] In this embodiment, a total station or a laser level can be used to accurately draw the positioning line on the pad 330. Alternatively, a plane rectangular coordinate system can be established on the horizontal ground, and the center line and the frame line can be drawn on the pad 330 according to the design position of the frame 100. The accuracy of the positioning line is controlled within ±1mm. Construction personnel can accurately perform installation operations according to the position of the positioning line and the through hole, reducing construction errors and improving construction efficiency.

[0074] S3, fixing the left support frame and the right support frame on the gasket by full penetration welding.

[0075] In this embodiment, before welding, the welding parts of the left support frame 110, the right support frame 120 and the pad 330 are pre-treated. For example, a grinder is used to grind the welding area to remove impurities such as rust, oil, scale, etc. on the surface, reveal the metallic luster, and ensure the welding quality. Specifically, carbon dioxide gas shielded welding or submerged arc welding can be used for full penetration welding. When processing the groove at the welding part, the groove form can be V-shaped or K-shaped, and the groove angle, blunt edge and gap are set according to actual construction needs.

[0076] During the welding process, it is necessary to ensure that the root of the weld is fully melted. Multi-layer and multi-pass welding can be used. The thickness of each weld does not exceed 5mm, and the overlap between adjacent welds is 20-30%. During the welding process, a welding inspection ruler is used to monitor the weld's excess height, width, misalignment, etc. in real time to ensure that the weld quality meets the requirements. After welding is completed, the weld is visually inspected to see if there are defects such as pores, slag inclusions, and cracks. In addition, non-destructive testing can also be performed, such as ultrasonic testing or X-ray testing, to inspect the inside of the weld to ensure that the welding quality meets the design standards.

[0077] S4, fully penetrate welding the two ends of the connecting beam to the left support frame and the right support frame respectively;

[0078] In this embodiment, during the welding process, it is necessary to ensure that the welds at both ends of the connecting beam 130 are symmetrical to avoid biased welding or leaking welding. After welding is completed, the appearance and internal quality of the welds are checked, such as by performing flaw detection on the welds to ensure that the welds meet quality requirements.

[0079] In addition, according to the load-bearing requirements of the frame 100, a reinforcing plate can be provided at the connection position between the connecting beam 130 and the left support frame 110 and the right support frame 120. The thickness of the reinforcing plate can be set according to actual construction requirements. The reinforcing plate can be welded to the connecting beam 130 and the support frame by using a fillet weld, and the size of the weld leg of the fillet weld is also determined according to the design requirements to ensure that the connection between the connecting beam 130 and the left support frame 110 and the right support frame 120 is more firmly secured.

[0080] S5. Hoist the electrical and piping components in MiMEP and fix them to the hangers at the bottom of the precast concrete slab.

[0081] In this embodiment, before hoisting, the electrical and pipelines need to be inspected to ensure that they meet the design requirements and are not damaged or deformed. According to the weight and size of the electrical and pipelines, select appropriate hoisting equipment, such as a crane. After the electrical and pipelines are hoisted by the lifting equipment, the construction personnel use clamps or bolts to fix the electrical and pipelines to the hanger. For the clamps, the clamping force should be sufficient to resist the vibration and displacement of the electrical and pipelines during use; for the bolts, use a torque wrench to tighten them according to the specified torque. The torque value is determined according to the specifications and materials of the bolts to ensure that the electrical and pipelines are firmly fixed to the hanger.

[0082] The embodiment of the present invention provides an installation frame and a construction method thereof, which are applied to the installation of electrical and pipelines in MiMEP, and include: a frame 100, a precast concrete panel 200, and a fixing assembly 300; the precast concrete panel 200 is arranged on the top of the frame 100 through the fixing assembly 300; the precast concrete panel 200 is used to fix the electrical and pipelines in MiMEP; the frame 100 includes a left support frame 110, a right support frame 120, and a connecting beam 130; the left support frame 110 is fixedly connected to the right support frame 120 through the connecting beam 130; the left support frame 110 and the right support frame 120 are parallel to each other and symmetrically arranged at both ends of the connecting beam 130. In this embodiment, after the precast concrete panel 200 is arranged on the top of the frame 100 through the fixing assembly 300, the electrical and pipelines in MiMEP can be arranged on the frame 100 through the precast concrete panel 200, which provides an operating space for their installation and significantly improves the construction efficiency.

[0083] The above are only specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A mounting bracket, used for the installation of electrical and pipelines in MiMEP, characterized in that: include: A frame, a precast concrete panel and a fixing assembly; the precast concrete panel is arranged on the top of the frame through the fixing assembly; the precast concrete panel is used to fix the electrical and pipelines in the MiMEP; the frame includes a left support frame, a right support frame and a connecting beam; the left support frame is fixedly connected to the right support frame through the connecting beam; the left support frame and the right support frame are parallel to each other and are symmetrically arranged at both ends of the connecting beam.

2. The tire mounting frame according to claim 1, characterized in that: The left support frame includes a left crossbeam and a left column; the left crossbeam is vertically fixed on the tops of two adjacent left columns; the left crossbeam is parallel to the precast concrete slab.

3. The tire mounting frame according to claim 2, characterized in that: The left column includes a first sub-left column, a second sub-left column and a third sub-left column; the second sub-left column is located between the first sub-left column and the third sub-left column; the first sub-left column, the second sub-left column and the third sub-left column are equidistantly and perpendicularly to the precast concrete slab.

4. The tire mounting frame according to claim 3, characterized in that: The left cross beam includes a first sub-left cross beam and a second sub-left cross beam; the first sub-left cross beam and the second sub-left cross beam are symmetrically arranged about the second sub-left upright column; the two ends of the first sub-left cross beam are respectively fixedly connected to the first sub-left upright column and the second sub-left upright column; the two ends of the second sub-left cross beam are respectively fixedly connected to the second sub-left upright column and the third sub-left upright column.

5. The tire mounting frame according to claim 4, characterized in that: The right support frame includes a right crossbeam and a right column; the right crossbeam is vertically fixed on the top of the right column; the right crossbeam is parallel to the precast concrete slab; the right crossbeam faces the left crossbeam, and the right column faces the left column.

6. The tire mounting frame according to claim 5, characterized in that: The right pillar includes a first sub-right pillar, a second sub-right pillar and a third sub-right pillar; the second sub-right pillar is located between the first sub-right pillar and the third sub-right pillar; the first sub-right pillar faces the first sub-left pillar, the second sub-right pillar faces the second sub-right pillar, and the third sub-right pillar faces the third sub-left pillar.

7. The tire mounting frame according to claim 6, characterized in that: The right cross beam includes a first sub-right cross beam and a second sub-right cross beam; the first sub-right cross beam and the second sub-right cross beam are symmetrically arranged about the second sub-right upright column; the two ends of the first sub-right cross beam are respectively fixedly connected to the first sub-right upright column and the second sub-right upright column; the two ends of the second sub-right cross beam are respectively fixedly connected to the second sub-right upright column and the third sub-right upright column.

8. The tire mounting frame according to claim 1, characterized in that: The fixing assembly includes a channel steel and a first connecting piece; the top of the channel steel is fixedly connected to the precast concrete slab through the first connecting piece; and the bottom of the channel steel is arranged on the top of the frame.

9. The tire mounting frame according to claim 8, characterized in that: The fixing assembly also includes a pad and a second connecting member; the pad is fixed to the horizontal ground through the second connecting member; and the bottom of the frame is vertically fixed to the surface of the pad.

10. A construction method for installing a tire frame, characterized in that: Applicable to the tire frame installation method according to any one of claims 1 to 9, the method comprising: Determine the length and width of the frame according to the precast concrete slab; Preset positioning lines and through holes on the pad, and fix the pad to the horizontal ground through a second connecting piece; The left support frame and the right support frame are fixed on the gasket by full penetration welding; Full penetration welding of the two ends of the connecting beam to the left support frame and the right support frame respectively; The electrical and piping components in MiMEP are hoisted and fixed to the hangers at the bottom of the precast concrete slab.

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