Novel prefabricated bay window joint and fabricated steel structure building

Abstract

The embodiment of the utility model provides a novel prefabricated bay-window joint and an assembly type steel structure building. The novel prefabricated bay-window joint comprises prefabricated concrete bay-window side plates, a prefabricated concrete bay-window top plate, a concrete top floor plate and a steel beam. The concrete top floor plate is connected to the surface of an upper flange of the steel beam; the prefabricated concrete bay-window side plate is connected to the left end face of the steel beam and is vertically arranged at the end part of one side of the concrete top floor plate; the prefabricated concrete bay-window top plate is vertically arranged at the bottom of the prefabricated concrete bay-window side plate; the right end face of the prefabricated concrete bay-window top plate is vertically flush with the right end face of the steel beam, and the space between the prefabricated concrete bay-window top plate and the lower flange of the steel beam is filled with a filling piece. According to the embodiment of the utility model, after the right end face of the prefabricated concrete bay-window top plate is vertically flush with the right end face of the steel beam, the space between the prefabricated concrete bay-window top plate and the steel beam bottom plate is filled with the filling piece, so that the lower internal corner of the steel beam is eliminated, and the space utilization rate and the indoor attractiveness of a building are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel structure building technical field especially relates to a new prefabricated bay window node and fabricated steel structure building. BACKGROUND

[0002] Fabricated steel structure system with its efficient, earthquake resistance, environmental protection, energy saving, space free customization and intelligent design and so on advantage, more and more widely used in various public buildings and residential projects. Figure 1 As shown in the prefabricated bay window as the component that the application is more mature in fabricated steel structure building, its usual setting mode is that prefabricated bay window 1 is connected in the end of concrete floor structure 2, and steel beam 3 is connected in the lower surface of concrete floor structure 2. It can be seen that due to the characteristics of prefabricated bay window 1 itself being inverted "L", there is inevitably a reentrant corner 4 between it and the bottom of steel beam 3.

[0003] The existence of reentrant corner not only affects the aesthetics of indoor, but also leads to the difficulty of effectively utilizing the indoor space where the reentrant corner is located, so a new prefabricated bay window that can improve the space utilization and indoor aesthetics is urgently needed. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a new prefabricated bay window node and fabricated steel structure building, aims at solving the problem of low space utilization and low indoor aesthetics between prefabricated bay window and steel beam in prior art.

[0005] Firstly, the utility model embodiment provides a new prefabricated bay window node, including prefabricated concrete bay window side plate, prefabricated concrete bay window top plate, concrete top floor and steel beam, the concrete top floor is connected in the upper flange surface of steel beam, the prefabricated concrete bay window side plate is connected in the left end surface of steel beam, and it is vertically arranged in one side end of concrete top floor, the prefabricated concrete bay window top plate is vertically arranged in the bottom of prefabricated concrete bay window side plate, the right end surface of prefabricated concrete bay window top plate is vertically flush with the right end surface of steel beam, and the space between it and the lower flange of steel beam is filled by filler.

[0006] In some embodiments, the prefabricated concrete bay window top plate includes first top plate body, first connector through hole and prefabricated concrete eaves plate, the first top plate body is provided with first connector through hole to the end surface of steel beam, and the prefabricated concrete eaves plate is connected to the end surface of first top plate body facing steel beam.

[0007] In some embodiments, the prefabricated concrete eaves plate includes eaves plate body and second connector through hole, the second connector through hole is horizontally through in the inside of eaves plate body, and is opposite to the first connector through hole.

[0008] In some embodiments, a first connector is further included; the first connector is threaded through the through hole of the second connector and screwed into the through hole of the first connector to connect the prefabricated concrete cantilever slab to the first roof body.

[0009] In some embodiments, the right end surface of the cantilever slab body in the horizontal direction is vertically flush with the right end surface of the steel beam, and a first space formed between the upper end surface of the cantilever slab body and the lower flange of the steel beam is filled by a first filler.

[0010] In some embodiments, the prefabricated concrete bay window roof plate includes a second roof body and a pre-embedded part; the pre-embedded part is vertically arranged at the end surface of the second roof body facing the steel beam and is located directly below the lower flange of the steel beam.

[0011] In some embodiments, the part of the pre-embedded part outside the second roof body is formed into a cast cantilever slab by concrete casting, and the right end surface of the cast cantilever slab is vertically flush with the right end surface of the steel beam.

[0012] In some embodiments, the space formed between the end surface of the cast cantilever slab facing the steel beam and the lower flange of the steel beam is a second space, and the second space is filled by a second filler.

[0013] In some embodiments, a concrete side floor slab is further included, and opposite sides of the concrete side floor slab are connected to the prefabricated concrete bay window side plate and the concrete top floor slab, respectively.

[0014] In the second aspect, the embodiments of the utility model further provide a prefabricated steel structure building, the prefabricated steel structure building includes the novel prefabricated bay window node in any one of the foregoing embodiments, and further includes a prefabricated bay window concrete platform, a bay window glass and a protective fence; the bottom of the prefabricated bay window concrete platform is connected to the top of the prefabricated concrete bay window side plate and the upper surface of the concrete top floor slab.

[0015] The bay window glass is used to connect two adjacent novel prefabricated bay window nodes, wherein the bottom of the bay window glass is connected to the prefabricated bay window concrete platform, and the top of the bay window glass is connected to the prefabricated concrete bay window roof plate of an adjacent upper layer; the protective fence is vertically arranged on the prefabricated bay window concrete platform.

[0016] The embodiment of the utility model provides a novel prefabricated bay window node and fabricated steel structure building, including prefabricated concrete bay window side plate, prefabricated concrete bay window top plate, concrete top floor and steel beam, the concrete top floor is connected to the upper flange surface of steel beam, prefabricated concrete bay window side plate is connected to the left end surface of steel beam, and its vertical setting is in one side end part of concrete top floor, prefabricated concrete bay window top plate vertical setting is in the bottom of prefabricated concrete bay window side plate, the right end surface of prefabricated concrete bay window top plate and the right end surface of steel beam vertical flush, and its space between the lower flange of steel beam is filled by filling piece, in the embodiment of the utility model, after the right end surface of prefabricated concrete bay window top plate and the right end surface of steel beam vertical flush, fill the space between prefabricated concrete bay window top plate and steel beam bottom plate by filling piece, eliminate the steel beam lower internal corner, thereby improve the space utilization and the beautiful degree of building indoor. BRIEF DESCRIPTION OF DRAWINGS

[0017] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed to be used in the embodiment description will be simply introduced below, and obviously, the drawings in the following description are some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creative labor.

[0018] Figure 1 It is the structural schematic diagram of prefabricated bay window in prior art;

[0019] Figure 2 It is the structural schematic diagram of one embodiment in the novel prefabricated bay window node provided by the embodiment of the utility model;

[0020] Figure 3 It is the structural schematic diagram of another embodiment in the novel prefabricated bay window node provided by the embodiment of the utility model;

[0021] Figure 4 It is the structural schematic diagram of one embodiment in the fabricated steel structure building provided by the embodiment of the utility model;

[0022] Figure 5 It is the structural schematic diagram of another embodiment in the fabricated steel structure building provided by the embodiment of the utility model.

[0023] The signs are as follows:

[0024] 100, prefabricated concrete bay window side plate; 200, prefabricated concrete bay window top plate; 210, first top plate body; 220, prefabricated concrete cantilever plate; 221, cantilever plate body; 222, first connecting piece; 223, first filling piece; 230, second top plate body; 240, embedded part; 250, second filling piece; 300, concrete top floor plate; 400, steel beam; 500, concrete side floor plate; 600, prefabricated bay window concrete platform; 700, bay window glass; 800, guardrail. DETAILED DESCRIPTION

[0025] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0026] It should be understood that the terms "comprising" and "including" as used in the specification and the appended claims indicate the presence of the recited features, integers, steps, operations, elements, and / or components but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0027] It should also be understood that the terms used in the present application specification are only for the purpose of describing specific embodiments and are not intended to limit the present application. As used in the present application specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0028] It should be further understood that the term "and / or" as used in the present application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0029] Please refer to Figures 1 to 5 , Figure 1 for a structural schematic view of a prefabricated bay window in the prior art; Figure 2 for a structural schematic view of one embodiment of a novel prefabricated bay window node provided by the embodiments of the present application; Figure 3 for a structural schematic view of another embodiment of a novel prefabricated bay window node provided by the embodiments of the present application; Figure 4 for a structural schematic view of one embodiment of a fabricated steel structure building provided by the embodiments of the present application; Figure 5 for a structural schematic view of another embodiment of a fabricated steel structure building provided by the embodiments of the present application.

[0030] Referring again to Figure 2 and Figure 4 The utility model discloses a novel prefabricated bay window node, including prefabricated concrete bay window side plate 100, prefabricated concrete bay window top plate 200, concrete top floor 300 and steel beam 400, the concrete top floor 300 is connected on the upper flange surface of steel beam 400, prefabricated concrete bay window side plate 100 is connected on the left end surface of steel beam 400, and it is vertically arranged on one side end of concrete top floor 300, prefabricated concrete bay window top plate 200 is vertically arranged on the bottom of prefabricated concrete bay window side plate 100, and the right end surface of prefabricated concrete bay window top plate 200 is vertically flush with the right end surface of steel beam 400, and the space between its and the lower flange of steel beam 400 is filled by filling piece.

[0031] In the embodiment, with Figure 2 The bottom of prefabricated concrete bay window side plate 100 is vertically connected to prefabricated concrete bay window top plate 200. The concrete top floor is perpendicular to the top of prefabricated concrete bay window side plate 100, and the upper surface of the concrete top floor and the upper surface of the top of prefabricated concrete bay window side plate 100 are flush, that is, the upper surfaces of the two are on the same horizontal plane.

[0032] Steel beam 400 is high-strength I-shaped steel beam 400, the left end surface is connected to prefabricated concrete bay window side plate 100, the upper flange surface is connected to concrete top floor 300, the right end surface is vertically flush with the right end surface of prefabricated concrete bay window top plate 200, and the space between the lower flange and prefabricated concrete bay window top plate 200 is filled by filling piece, so as to eliminate the internal corner between the lower flange of steel beam 400 and prefabricated concrete bay window top plate 200, thereby improving the space utilization and the aesthetic degree of indoor.

[0033] In an embodiment, as Figure 2 The prefabricated concrete bay window top plate 200 includes a first top plate body 210, a first connecting piece 222 through hole and a prefabricated concrete cantilever plate 220, the first top plate body 210 is provided with a first connecting piece 222 through hole facing the end surface of the steel beam 400, and the prefabricated concrete cantilever plate 220 is connected to the end surface of the first top plate body 210 facing the steel beam 400.

[0034] Further, the prefabricated concrete cantilever plate 220 includes a cantilever plate body 221 and a second connecting piece through hole, the second connecting piece through hole is horizontally through the inside of the cantilever plate body 221, and is opposite to the first connecting piece 222 through hole.

[0035] In the embodiment, the prefabricated concrete cantilever slab 220 is connected and fixed on the end surface of the first roof body 210 facing the steel beam 400 through the first connecting member 222, and the lower surface thereof is flush with the lower surface of the first roof body 210, that is, the lower surfaces of the two are in the same horizontal plane. Ensuring that the lower surface of the prefabricated concrete cantilever slab 220 is flush with the lower surface of the first roof body 210 can improve the flatness and aesthetics of the building appearance. Taking a residential building as an example, from the outside, the lower line of the bay window part is smooth and neat, and there is no uneven phenomenon, which improves the overall image and quality of the building.

[0036] The end surface of the first roof body 210 facing the steel beam 400 is provided with a first connecting member 222 through hole, and the inside of the cantilever slab body 221 is provided with a second connecting member through hole in the horizontal direction, and the first connecting member 222 through hole is opposite to the second connecting member through hole. Through the accurate connection mode and alignment design, the compression resistance and the anti-seismic performance of the structure are improved.

[0037] The distance between the right end surface of the cantilever slab body 221 and the prefabricated concrete bay window side plate 100 is a first preset distance, and the distance between the right end surface of the steel beam 400 and the prefabricated concrete bay window side plate 100 is a second preset distance. The first preset distance is equal to the second preset distance, that is, the right end surface of the steel beam 400 is vertically flush with the right end surface of the cantilever slab body 221. The right end surface of the steel beam 400 is vertically flush with the right end surface of the cantilever slab body 221, and the first preset distance is equal to the second preset distance, which provides a clear reference standard for construction and installation. Construction personnel can quickly and accurately determine the position of each component during installation, improving construction efficiency. For example, during the installation of the bay window of a multi-story building, each story is constructed according to the same distance standard, which can greatly shorten the construction time and reduce the construction error.

[0038] In an embodiment, as shown in Figure 2 The first connecting member 222 is provided in the second connecting member through hole and screwed into the first connecting member 222 through hole to connect the prefabricated concrete cantilever slab 220 to the first roof body 210.

[0039] In the embodiment, the first connecting member 222 can be a high-strength stainless steel bolt with a specification greater than or equal to M16, or a steel rod. Before installation, the debris in the first connecting member 222 through hole and the second connecting member through hole are carefully cleaned to ensure that the hole wall is smooth and unobstructed. After the first connecting member 222 is inserted into the second connecting member through hole in the cantilever slab body 221, it is screwed into the first connecting member 222 through hole to achieve the connection and fixation of the prefabricated concrete cantilever slab 220 to the right end of the first roof body 210.

[0040] Specifically, the prefabricated concrete cantilever slab 220 and the first roof body 210 are connected by high-strength stainless steel bolts (first connecting pieces 222) to form an integral whole and bear forces together. For example, when subjected to wind load or earthquake action, the force borne by the prefabricated concrete cantilever slab 220 can be effectively transmitted to the first roof body 210 through the first connecting pieces 222, and then to the entire building structure system, thereby improving the stability and seismic performance of the building structure.

[0041] In an embodiment, as shown in Figure 2 and Figure 4 The right end surface of the cantilever slab body 221 in the horizontal direction is vertically flush with the right end surface of the steel beam 400, and a first space formed between the upper end surface of the cantilever slab body 221 and the lower flange of the steel beam 400 is filled with a first filler 223.

[0042] In this embodiment, after the first connecting piece 222 passes through the first connecting piece 222 through hole and the second connecting piece through hole, and before the first space is filled, the second connecting piece through hole needs to be sealed with mortar. For filling the first space, concrete pouring can be used, or extruded polystyrene foam board or polyurethane foam board with good thermal insulation performance can be used. Taking a residential building as an example, in winter, indoor heat is easily lost to the outside through the gap between the cantilever slab and the steel beam 400. After filling the first space with high-efficiency insulation materials such as extruded polystyrene foam board, heat conduction is effectively prevented, and the rate of indoor heat loss is greatly reduced. In summer, the high temperature outside is also difficult to pass through the filled area into the room, making the indoor temperature more stable, providing a more comfortable living environment for residents, reducing the discomfort caused by temperature changes, and improving the quality of life.

[0043] In addition, after being filled, the first filler 223 can play a certain buffering and force transmission role between the cantilever slab body 221 and the steel beam 400. When the building is subjected to lateral loads such as wind force and earthquake force, the filler can uniformly disperse part of the load to the cantilever slab body 221 and the steel beam 400, avoiding local stress concentration. For example, in strong wind weather, the horizontal thrust generated by the wind acts on the outer wall of the building, and the cantilever slab will be subjected to a certain horizontal force. The filler can disperse and transmit this part of the horizontal force, so that the cantilever slab and the steel beam 400 bear forces together, enhancing the wind resistance stability of the entire structure. In addition, the filler has good elasticity and damping performance, and can effectively absorb and weaken the transmission of these vibrations. For example, in a commercial building, the vibration generated by the operation of large equipment in the ground floor shop can be absorbed by the first filler 223 when passing through the filled area, reducing the transmission of vibration to the upper building and reducing the impact on other areas, improving the use performance of the building.

[0044] In an embodiment, as shown inFigure 3 As shown, the prefabricated concrete bay window top plate 200 comprises a second top plate body 230 and a pre-embedded part 240; the pre-embedded part 240 is vertically arranged on the end surface of the second top plate body 230 facing the steel beam 400, and is located directly below the lower flange of the steel beam 400.

[0045] Further, the part of the pre-embedded part 240 outside the second top plate body 230 is formed into a pouring cantilever plate through concrete pouring, and the right end surface thereof is vertically flush with the right end surface of the steel beam 400.

[0046] In the embodiment, the pre-embedded part 240 can be a high-strength steel bar. According to the mechanical calculation results in the design of the building structure, the specific quantity and specifications of the high-strength steel bar are determined. Before pouring the second top plate body 230 of the prefabricated concrete bay window top plate 200, the position of the pre-embedded part 240 is accurately measured and marked on the formwork using a total station or theodolite measuring instrument. The prepared pre-embedded part 240 is vertically placed on the end surface of the second top plate body 230 facing the steel beam 400 according to the marked position, so that the pre-embedded part 240 is located directly below the lower flange of the steel beam 400. The pre-embedded part 240 is temporarily fixed on the formwork by drilling holes in the formwork and using positioning bars, so as to ensure that the pre-embedded part 240 does not displace during pouring.

[0047] After the pre-embedded part 240 is installed and fixed and no errors are found, the formwork of the pouring cantilever plate is erected around the pre-embedded part 240. The formwork is made of high-strength and good-sealing wood formwork or steel formwork, which is customized and processed according to the size and shape of the pouring cantilever plate. Then, concrete with a strength grade matching that of the second top plate body 230 can be selected for pouring. After the concrete pouring is completed, a trowel can be used to smooth and compact the surface of the pouring cantilever plate, so that the surface is smooth and flat.

[0048] The pre-embedded part 240 forms an integral whole with the second top plate body 230 and the pouring cantilever plate, thereby enhancing the structural integrity of the bay window part. Compared with the case without the pre-embedded part 240, the deformation of the structure is smaller when various loads are applied, and the stability of the structure can be better maintained. In addition, the part of the pre-embedded part 240 outside the second top plate body 230 is formed into a pouring cantilever plate through concrete pouring, and the right end surface thereof is vertically flush with the right end surface of the steel beam 400, so that the appearance of the building is more neat and beautiful. From the indoor view, the lines of the bay window part are smooth and uniform, and there is no appearance defect caused by irregular connection.

[0049] In an embodiment, as shown in Figure 3 and Figure 5 As shown, the space formed between the end surface of the pouring cantilever plate facing the steel beam 400 and the lower flange of the steel beam 400 is a second space, and the second space is filled by a second filling part 250.

[0050] In the embodiment, the second filler 250 can be concrete, polyurethane foam board or closed-cell rubber sponge board. Specifically, the second filler 250 can be selected according to the energy-saving design requirements of the building and the climate conditions of the region. For example, in cold regions, polyurethane foam board with low thermal conductivity and excellent thermal insulation performance is preferred; in humid regions, closed-cell rubber sponge board with good waterproof performance can be selected. The selected filler material is subjected to quality inspection, and product qualification certificates and performance test reports are checked to ensure that the performance indicators meet the design standards.

[0051] After the filler is installed, sealant is used to seal the gaps between adjacent fillers and the contact edges of the fillers and the cast cantilever slab and the steel beam 400. In humid southern regions, the air humidity is high, and humid air can easily enter the indoor environment through the building gaps, affecting the indoor environmental quality and the service life of furniture and electrical appliances. The second filler 250 and the sealant can effectively prevent the penetration of humid air and maintain stable indoor air humidity. A stable humidity environment is beneficial to human health, reduces respiratory diseases caused by humidity, and also protects indoor items and reduces the risk of damage caused by moisture.

[0052] First, when the building is subjected to lateral loads such as wind and earthquake forces, the second filler 250 can act as a buffer and force transmission between the cast cantilever slab and the steel beam 400. Second, the second filler 250 fills and blocks the second space formed between the end surface of the cast cantilever slab facing the steel beam 400 and the lower flange of the steel beam 400, thereby completely eliminating the internal corner of the lower flange of the steel beam 400, thereby improving the aesthetics of the indoor environment.

[0053] In an embodiment, as shown in Figure 2 , Figure 3 , Figure 4 and Figure 5 , it further includes a concrete side floor 500, and the opposite sides of the concrete side floor 500 are connected to the prefabricated concrete bay window side plate 100 and the concrete top floor 300, respectively.

[0054] In the embodiment, the concrete side floor 500 is located between the prefabricated concrete bay window side plate 100 and the concrete top floor 300, and one side is connected vertically to the concrete top floor 300, and the other side opposite to it is connected to the right end surface of the prefabricated concrete bay window side plate 100. The top end surface of the concrete side floor 500 is flush with the upper surface of the concrete top floor 300.

[0055] The concrete side floor 500 is tightly connected with the concrete top floor 300 and the prefabricated concrete bay window side plate 100, forming a stable structural system. When various loads are borne, the three can work together to bear external forces. For example, when wind load or earthquake action is borne, the concrete side floor 500 can effectively transmit horizontal force to the concrete top floor 300 and the prefabricated concrete bay window side plate 100, so that the stress of the whole building structure is more uniform, the anti-seismic and anti-wind capacity of the building is improved, and the safety of the life and property of residents is ensured.

[0056] The utility model embodiment further provides a kind of fabricated steel structure building, such as Figure 4 And Figure 5 As shown, the fabricated steel structure building includes novel prefabricated bay window node in any one of the foregoing embodiments, further include prefabricated bay window concrete platform 600, bay window glass 700 and guardrail 800;The bottom of the prefabricated bay window concrete platform 600 is connected to the top of the prefabricated concrete bay window side plate 100 and the upper surface of the concrete top floor 300;

[0057] The bay window glass 700 is used to connect two adjacent layers of novel prefabricated bay window node, wherein, its bottom is connected to the prefabricated bay window concrete platform 600, and its top is connected to the prefabricated concrete bay window top plate 200 of adjacent upper layer;The guardrail 800 is vertically arranged on the prefabricated bay window concrete platform 600.

[0058] In the embodiment, prefabricated bay window concrete platform 600 can be prefabricated by high-strength concrete, and if necessary, double-layer bidirectional steel mesh can be arranged inside to enhance its bending and cracking resistance, and the diameter and spacing of the steel bars are determined according to the size of the platform and the load borne.

[0059] For the connection mode of the prefabricated bay window concrete platform 600 and the top of the prefabricated concrete bay window side plate 100 and the upper surface of the concrete top floor 300, in a specific embodiment, connecting steel bars or connecting sleeves can be reserved on the top of the prefabricated concrete bay window side plate 100, and the corresponding connecting structure is also reserved at the corresponding position of the bottom of the prefabricated bay window concrete platform 600. When installing, the platform is hoisted to the top of the side plate, the connecting steel bars are inserted into the sleeves or welded, and then high-strength grouting material is used for grouting to ensure firm connection. And chemical anchors or embedded steel plates are provided on the upper surface of the concrete top floor 300, and connecting holes or connecting plates corresponding to the anchors or steel plates are provided at the bottom of the prefabricated bay window concrete platform 600, and the platform and the top floor are fixed together by bolt connection or welding.

[0060] According to the energy saving, safety and aesthetic requirements of the building, the appropriate bay window glass 700 is selected. For example, hollow glass or laminated glass, hollow glass has good heat preservation performance, laminated glass has higher safety. The thickness of the bay window glass 700 is determined according to the size of the window hole and the design load. The bay window glass 700 is connected as a connecting piece between the two adjacent new prefabricated bay window nodes in the vertical direction. The bottom is connected to the prefabricated bay window concrete slab 600 of the current layer, and the top is connected to the prefabricated concrete bay window top plate 200 of the adjacent upper layer. For example, the current layer is the Nth layer, and the adjacent upper layer is the N+1th layer.

[0061] The guardrail 800 can be made of stainless steel, aluminum alloy or steel, etc. The height is determined according to the building design specification, generally not less than 1.1 meters. The guardrail 800 can be vertically arranged on the prefabricated bay window concrete slab 600 by expansion bolts or welding. Before installation, mark the installation position of the guardrail 800 on the slab, then drill holes and install expansion bolts or perform welding operation. After installation, check the verticality and stability of the guardrail 800 to ensure that it meets the design requirements. In addition, for the guardrail 800 made of metal material, the surface can be treated for corrosion resistance, such as galvanizing, spraying, etc., to prolong its service life.

[0062] The embodiment of the utility model provides new prefabricated bay window node and assembly type steel structure building, including prefabricated concrete bay window side plate 100, prefabricated concrete bay window top plate 200, concrete top floor slab 300 and steel beam 400, concrete top floor slab 300 is connected to the upper flange surface of steel beam 400, prefabricated concrete bay window side plate 100 is connected to the left end surface of steel beam 400, and it is vertically arranged in one side end of concrete top floor slab 300, prefabricated concrete bay window top plate 200 is vertically arranged in the bottom of prefabricated concrete bay window side plate 100, the right end surface of prefabricated concrete bay window top plate 200 and the right end surface of steel beam 400 are vertical flush, and the space between it and the lower flange of steel beam 400 is filled by filling piece. In the embodiment of the utility model, after the right end surface of prefabricated concrete bay window top plate 200 and the right end surface of steel beam 400 are vertical flush, the space between prefabricated concrete bay window top plate 200 and steel beam 400 bottom plate is filled by filling piece, so as to eliminate the lower internal corner of steel beam 400, thereby improve the space utilization and the aesthetic degree of building indoor.

[0063] The above is only a specific embodiment of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. A new prefabricated bay window node, characterized by The application relates to a new type of prefabricated bay window joint, which comprises a prefabricated concrete bay window side plate, a prefabricated concrete bay window top plate, a concrete top floor plate and a steel beam; the concrete top floor plate is connected to the upper flange surface of the steel beam; the prefabricated concrete bay window side plate is connected to the left end surface of the steel beam and vertically arranged at one side end of the concrete top floor plate; the prefabricated concrete bay window top plate is vertically arranged at the bottom of the prefabricated concrete bay window side plate; the right end surface of the prefabricated concrete bay window top plate is vertically flush with the right end surface of the steel beam, and the space between the prefabricated concrete bay window top plate and the lower flange of the steel beam is filled with a filler.

2. The new prefabricated bay window node according to claim 1, characterized in that, The prefabricated concrete bay window top plate comprises a first top plate body, a first connecting piece through hole and a prefabricated concrete cantilever plate; the first top plate body is provided with the first connecting piece through hole facing the end surface of the steel beam; the prefabricated concrete cantilever plate is connected to the end surface of the first top plate body facing the steel beam.

3. The new prefabricated bay window node according to claim 2, characterized in that, The prefabricated concrete cantilever plate comprises a cantilever plate body and a second connecting piece through hole; the second connecting piece through hole horizontally penetrates the inside of the cantilever plate body and is opposite to the first connecting piece through hole.

4. The new prefabricated bay window node according to claim 3, characterized in that, The first connecting piece is arranged in the second connecting piece through hole and screwed into the first connecting piece through hole, so as to connect the prefabricated concrete cantilever plate to the first top plate body.

5. The new prefabricated bay window node according to claim 4, characterized in that, The right end surface of the cantilever plate body in the horizontal direction is vertically flush with the right end surface of the steel beam, and the first space formed between the upper end surface of the cantilever plate body and the lower flange of the steel beam is filled with a first filler.

6. The new prefabricated bay window node according to claim 1, characterized in that, The prefabricated concrete bay window top plate comprises a second top plate body and a pre-embedded piece; the pre-embedded piece is vertically arranged on the end surface of the second top plate body facing the steel beam and is located directly below the lower flange of the steel beam.

7. The new prefabricated bay window node according to claim 6, characterized in that, The part of the pre-embedded piece outside the second top plate body is formed into a pouring cantilever plate through concrete pouring, and the right end surface of the pouring cantilever plate is vertically flush with the right end surface of the steel beam.

8. The new prefabricated bay window node according to claim 7, characterized in that, The space formed between the end surface of the pouring cantilever plate facing the steel beam and the lower flange of the steel beam is a second space, and the second space is filled with a second filler.

9. The new prefabricated bay window node according to claim 1, characterized in that, The concrete side floor plate is connected to the prefabricated concrete bay window side plate and the concrete top floor plate respectively.

10. A fabricated steel structure building, characterized by, The application further relates to a new type of prefabricated bay window joint, which comprises a prefabricated bay window concrete platform, a bay window glass and a protective fence; the bottom of the prefabricated bay window concrete platform is connected to the top of the prefabricated concrete bay window side plate and the upper surface of the concrete top floor plate. The bottom of the bay window glass is connected to the prefabricated bay window concrete platform, and the top of the bay window glass is connected to the prefabricated concrete bay window top plate of an adjacent upper layer; the protective fence is vertically arranged on the prefabricated bay window concrete platform.

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