CN109972768B - Construction method of assembled steel structure bearing wall - Google Patents
Construction method of assembled steel structure bearing wall Download PDFInfo
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- CN109972768B CN109972768B CN201910177159.3A CN201910177159A CN109972768B CN 109972768 B CN109972768 B CN 109972768B CN 201910177159 A CN201910177159 A CN 201910177159A CN 109972768 B CN109972768 B CN 109972768B
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B2/00—Walls, e.g. partitions, for buildings; Wall construction with regard to insulation; Connections specially adapted to walls
- E04B2/56—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members
- E04B2/58—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal
- E04B2/60—Load-bearing walls of framework or pillarwork; Walls incorporating load-bearing elongated members with elongated members of metal characterised by special cross-section of the elongated members
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G11/00—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs
- E04G11/06—Forms, shutterings, or falsework for making walls, floors, ceilings, or roofs for walls, e.g. curved end panels for wall shutterings; filler elements for wall shutterings; shutterings for vertical ducts
- E04G11/08—Forms, which are completely dismantled after setting of the concrete and re-built for next pouring
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
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- Electromagnetism (AREA)
- Mechanical Engineering (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
Abstract
The invention belongs to the technical field of buildings, and particularly relates to a building method of an assembled steel structure bearing wall, which aims at the technical problems of low construction efficiency, troublesome construction method and insufficient bearing capacity of the existing bearing wall. The splicing beam is reasonable in design, can be stably spliced between the two bearing beams after the bearing beams are erected on the walls on the two sides, can well adapt to cutting and measuring errors between the two bearing beams due to the fact that the splicing beam has the extending function with a certain length, can be rapidly installed on site, has the advantages of being short in construction period and low in cost, and improves the erection efficiency of the steel structure bearing wall.
Description
Technical Field
The invention relates to the technical field of buildings, in particular to a method for building an assembled steel structure bearing wall.
Background
In recent years, steel structure buildings are adopted in large quantities, and have the advantages of factory production, rapid field installation, high efficiency and the like, but how to connect building boards with a steel structure framework in the steel structure buildings is always a problem difficult to solve in the steel structure buildings, and the development of assembled steel structure buildings is limited.
However, the existing bearing wall is low in construction efficiency, troublesome in construction method and insufficient in bearing capacity, so that the construction method of the assembled steel structure bearing wall is provided for solving the problems.
Disclosure of Invention
Based on the technical problems in the background art, the invention provides a method for building an assembled steel structure bearing wall.
The invention provides a construction method of an assembled steel structure bearing wall body, which comprises two bearing beams, wherein one side, close to each other, of each bearing beam is provided with the same spliced beam, each bearing beam comprises two horizontally arranged first steel frames, one end, close to the spliced beam, of each first steel frame, which is positioned on the same side of the spliced beam, is welded with the same positioning plate, each spliced beam comprises two horizontally arranged second steel frames, one side, close to each other, of each second steel frame is slidably provided with two vertical positioning rods, the outer sides of the positioning rods are slidably sleeved with first rotating seats, the two positioning rods are welded with second rotating seats, the second rotating seats are positioned below the first rotating seats, the first rotating seats on one side and the second rotating seats on the other side are rotatably provided with the same first traction rod, the second rotating seats on one side and the first rotating seats on the other side are rotatably provided with the same second traction rod, the second traction rod is rotatably arranged on the first traction rod, four corners of one side, close to each other, of each of the two positioning plates are respectively provided with an installation hole, a positioning screw rod is movably placed in each installation hole, four corners of one side, far away from each other, of each of the two positioning rods are respectively provided with a first threaded hole matched with the positioning screw rod, the positioning screw rods are in threaded connection with the corresponding first threaded holes, the top side of one second steel frame above the two second steel frames is provided with two second threaded holes, reinforcing screw rods are arranged in the second threaded holes in a threaded mode, and the bottom ends of the reinforcing screw rods are in movable contact with the top side of the first;
the construction method comprises the following steps:
s1: fixing the two bearing beams between the two walls respectively, extracting the positioning screw rods on the spliced beams from the positioning plate, then placing the spliced beams between the two bearing beams, reinserting the positioning screw rods into the corresponding mounting holes, rotating the positioning screw rods, and screwing the positioning screw rods into the corresponding first threaded holes;
s2: rotating the reinforcing screw rod, make the bottom of reinforcing screw rod support first rotating seat and make its downstream, two first rotating seat in-process that move down, the locating lever moves to the direction of keeping away from each other gradually under the impetus of first traction lever and second traction lever, when first rotating seat and second rotating seat support the locating plate, stop rotating the reinforcing screw rod, rotating the locating screw rod, screw the locating screw rod in first screwed hole, the locating lever passes through locating screw rod zonulae occludens on the locating plate this moment, and then will splice the firm concatenation of roof beam between two spandrels, lay the concrete placement template in the spandrel girder and the outside of splicing the roof beam, then building concrete in to the template, this moment whole bearing wall body building is accomplished.
Preferably, the inclined pull rods which are obliquely arranged are welded on one side, close to each other, of the two first steel frames on the same side of the spliced beam, and the tensile strength and the mechanical strength of the bearing beam are improved due to the arrangement of the inclined pull rods.
Preferably, the one end welding that is located two first steelframes of concatenation roof beam with one side and keeps away from each other has same curb plate, and the bolt pilot hole has all been seted up to one side four corners of curb plate, passes through the bolt fastening with the curb plate on the wall or the heel post of both sides when the bolt pilot hole on the curb plate is convenient to be under construction.
Preferably, two spouts have all been seted up to one side that two second steelframes are close to each other, and the limiting plate has all been welded to the top and the bottom of locating lever, and limiting plate movable mounting is in the spout that corresponds, the spout is linked together with the second screw hole that corresponds, and the limiting plate can restrict the position of locating lever, avoids the locating lever to take place the back-and-forth movement.
Preferably, a plurality of vertical supporting rods are welded on one side, close to each other, of the two second steel frames, the supporting rods are located on one side, far away from the second traction rods, of the first traction rods, and the supporting rods can serve as frameworks of the spliced beams, so that the tensile strength and the mechanical strength of the spliced beams are improved.
Preferably, the outer side of the positioning rod is filled with grease, and the first rotating seat is connected with the outer side of the positioning rod in a sliding manner, so that the first rotating seat can slide up and down on the outer side of the positioning rod conveniently.
Preferably, one side that the spout is kept away from second steelframe center sets up for the opening, it has lubricating grease to annotate in the spout, and one side of spout is the opening, is convenient for assemble the limiting plate in the spout.
Preferably, the aperture of the mounting hole is larger than the diameter of the positioning screw, so that the friction force between the positioning screw and the mounting hole is reduced, and the positioning screw can smoothly penetrate into the mounting hole.
Compared with the prior art, the invention has the beneficial effects that:
(1) by rotating the reinforcing screw rod, the first rotating seat can be pushed to move downwards when the reinforcing screw rod rotates, and the centers of the first traction rod and the second traction rod are connected in a rotating mode, so that when the first rotating seat moves downwards, the two positioning rods move towards the directions away from each other, the positioning rods can drive the first rotating seat and the second rotating seat to be attached to the positioning plates on the bearing beam, and the connection tightness between the spliced beam and the bearing beam is guaranteed;
(2) the positioning screw rods on the bearing beams are screwed into the positioning rods, and the first rotating seat is tightly attached to the positioning plate, so that the spliced beams can be stably connected to the two bearing beams, the tensile resistance and the mechanical strength of the spliced beams are effectively improved by the plurality of supporting rods vertically arranged on the spliced beams, and the load capacity, the mechanical strength and the tensile resistance of the bearing beams are effectively improved by the plurality of diagonal pulling rods arranged in a staggered mode on the bearing beams;
(3) the position of the positioning rod on the spliced beam has an adjusting function, so that the spliced beam has certain ductility, the cutting times and welding times of steel during wall erection can be reduced, the deformation of the steel caused by thermal expansion and cold contraction can be avoided, the erection efficiency of the steel structure wall is further improved, and the concrete wall poured by taking the spliced beam and the bearing beam as the internal framework has the characteristics of high load strength and high mechanical strength;
the splicing beam is reasonable in design, can be stably spliced between the two bearing beams after the bearing beams are erected on the walls on the two sides, can well adapt to cutting and measuring errors between the two bearing beams due to the fact that the splicing beam has the extending function with a certain length, can be rapidly installed on site, has the advantages of being short in construction period and low in cost, and improves the erection efficiency of the steel structure bearing wall.
Drawings
FIG. 1 is a schematic structural view of an assembled steel structure load-bearing wall according to the present invention;
FIG. 2 is a schematic structural diagram of part A of an assembled steel structure load-bearing wall body according to the present invention;
fig. 3 is a schematic structural diagram of a part B of an assembled steel structure load-bearing wall body according to the present invention.
In the figure: the steel frame comprises a bearing beam 1, a splicing beam 2, a first steel frame 3, a positioning plate 4, a second steel frame 5, a positioning rod 6, a first rotating seat 7, a second rotating seat 8, a first traction rod 9, a second traction rod 10, a sliding chute 11, a limiting plate 12, a second threaded hole 13, a reinforcing screw rod 14, a mounting hole 15, a positioning screw rod 16, a first threaded hole 17, a supporting rod 18, a diagonal draw rod 19 and a side plate 20.
Detailed Description
The present invention will be further illustrated with reference to the following specific examples.
Examples
Referring to fig. 1-3, in this embodiment, a method for constructing an assembled steel-structure load-bearing wall is provided, where the load-bearing wall includes two load-bearing beams 1, one side of the two load-bearing beams 1, which is close to each other, is provided with a same spliced beam 2, the load-bearing beam 1 includes two horizontally arranged first steel frames 3, one end of the two first steel frames 3, which are located on the same side of the spliced beam 2, which is close to the spliced beam 2, is welded with a same positioning plate 4, the spliced beam 2 includes two horizontally arranged second steel frames 5, one side of the two second steel frames 5, which is close to each other, is slidably mounted with two vertical positioning rods 6, the outer side of the positioning rods 6 is slidably sleeved with a first rotating seat 7, two positioning rods 6 are welded with second rotating seats 8, the second rotating seat 8 is located below the first rotating seat 7, the first rotating seat 7 located on one side and the second rotating seat 8 located on the, a second rotating seat 8 positioned on one side and a first rotating seat 7 positioned on the other side are rotatably provided with the same second traction rod 10, the second traction rod 10 is rotatably arranged on a first traction rod 9, four corners of one side, close to each other, of the two positioning plates 4 are respectively provided with a mounting hole 15, a positioning screw 16 is movably placed in each mounting hole 15, four corners of one side, far away from each other, of the two positioning rods 6 are respectively provided with a first threaded hole 17 matched with the positioning screw 16, the positioning screw 16 is in threaded connection with the corresponding first threaded hole 17, the top side of one second steel frame 5 positioned above the two second steel frames 5 is provided with two second threaded holes 13, reinforcing screws 14 are arranged in the second threaded holes 13 in a threaded manner, and the bottom ends of the reinforcing screws 14 are in movable contact with the top side of the first rotating;
the construction method comprises the following steps:
s1: fixing the two bearing beams 1 between two walls respectively, extracting the positioning screw rods 16 on the spliced beam 2 from the positioning plate 4, then placing the spliced beam 2 between the two bearing beams 1, reinserting the positioning screw rods 16 into the corresponding mounting holes 15 at the moment, rotating the positioning screw rods 16, and screwing the positioning screw rods 16 into the corresponding first threaded holes 17;
s2: rotating the reinforcing screw 14 to enable the bottom end of the reinforcing screw 14 to abut against the first rotating seat 7 and move downwards, in the process that the two first rotating seats 7 move downwards, moving the positioning rod 6 gradually towards the direction away from each other under the pushing action of the first traction rod 9 and the second traction rod 10, stopping rotating the reinforcing screw 14 when the first rotating seat 7 and the second rotating seat 8 abut against the positioning plate 4, rotating the positioning screw 16 to screw the positioning screw 16 in the first threaded hole 17, tightly connecting the positioning rod 6 on the positioning plate 4 through the positioning screw 16 at the moment, further stably splicing the spliced beam 2 between the two bearing beams 1, laying a concrete pouring template outside the bearing beams 1 and the spliced beam 2, and then building concrete in the template, so that the whole bearing wall building is completed.
In this embodiment, the side that two first steelframes 3 that lie in splice roof beam 2 with one side are close to each other has a plurality of slopes to one side welding to set up 19, and the tensile strength and the mechanical strength of spandrel girder 1 have been improved to one side setting of 19.
In this embodiment, the one end welding that is located splice roof beam 2 and keeps away from each other with two first steelframes 3 of one side has same curb plate 20, and the bolt pilot hole has all been seted up to one side four corners of curb plate 20, passes through the bolt fastening with curb plate 20 on the wall or the heel post of both sides when the bolt pilot hole on the curb plate 20 is conveniently under construction.
In this embodiment, two spouts 11 have all been seted up to one side that two second steelframes 5 are close to each other, and limiting plate 12 has all been welded to the top and the bottom of locating lever 6, and limiting plate 12 movable mounting is in the spout 11 that corresponds, and spout 11 is linked together with the second screw hole 13 that corresponds, and limiting plate 12 can restrict the position of locating lever 6, avoids locating lever 6 to take place the back-and-forth movement.
In this embodiment, a plurality of vertical support rods 18 are welded on one side of each of the two second steel frames 5 close to each other, the support rods 18 are located on one side of the first traction rod 9 far away from the second traction rod 10, and the support rods 18 can serve as frameworks of the spliced beams 2, so that the tensile strength and the mechanical strength of the spliced beams 2 are improved.
In this embodiment, grease is injected to the outside of the positioning rod 6, and the first rotating base 7 is slidably connected to the outside of the positioning rod 6, so that the first rotating base 7 can slide up and down on the outside of the positioning rod 6.
In this embodiment, the spout 11 is kept away from one side at second steelframe 5 center and is set up for the opening, is annotated in the spout 11 and has been equipped with lubricating grease, and one side of spout 11 is the opening, is convenient for assemble limiting plate 12 in the spout 11.
In this embodiment, the aperture of the mounting hole 15 is larger than the diameter of the positioning screw 16, so as to reduce the friction between the positioning screw 16 and the mounting hole 15, and the positioning screw 16 can smoothly penetrate into the mounting hole 15.
In the embodiment, when the steel structure bearing wall body is erected, two bearing beams 1 are horizontally erected and located on the same horizontal axis, one ends, far away from each other, of the two bearing beams 1 are fixed on the walls or the bearing columns on the two sides respectively in advance, concrete pouring spaces are reserved on the walls on the two sides, the distance between the two bearing beams 1 is measured, the length of the distance needs to be more than 2-5cm of the length of the spliced beam, then four positioning screws 16 on the spliced beam 2 are extracted from mounting holes 15 on a positioning plate 4, the spliced beam 2 is placed between the two bearing beams 1, the spliced beam 2 is kept in a horizontal state, the position of the mounting hole 15 is aligned to the position of a first threaded hole 17, then the positioning screws 16 are inserted into the corresponding mounting holes 15 again, the positioning screws 16 are rotated, one ends of the positioning screws 16 are screwed into the corresponding first threaded holes 17, after the eight positioning screws 16 are respectively connected to the positioning rods 6, the spliced beam 2 is connected to the two bearing beams 1 through the positioning screws 16, the spliced beam 2 is temporarily connected between the two bearing beams 1, and thus, the first-step installation work is completed; rotating the reinforcing screw 14, wherein the reinforcing screw 14 rotates in the second threaded hole 13, so that the reinforcing screw 14 descends while rotating, the reinforcing screw 14 continues to rotate after the bottom end of the reinforcing screw 14 abuts against the first rotating seat 7, the reinforcing screw 14 pushes the first rotating seat 7 to slide downwards on the outer side of the positioning rod 6, the top ends of the first traction rod 9 and the second traction rod 10 are driven to move downwards in the downward movement process of the two first rotating seats 7, and the two positioning rods 6 gradually move towards the directions away from each other under the common pushing action of the first traction rod 9 and the second traction rod 10 due to the fact that the second traction rod 10 is rotatably connected to the first traction rod 9, and the positioning rod 6 is gradually attached to the positioning plate 4 on the bearing beam 1; when the first rotating seat 7 and the second rotating seat 8 both abut against the positioning plate 4 and are mutually attached to the positioning plate 4, stopping rotating the reinforcing screw 14, rotating the positioning screw 16 in the first threaded hole 17, so that the positioning screw 16 is screwed in the first threaded hole 17, the positioning rod 6 is tightly connected to the positioning plate 4 through the positioning screw 16, the spliced beam 2 can be stably assembled between the two bearing beams 1, and thus, the assembly work between the bearing beams 1 and the spliced beam 2 is completed, then, concrete pouring templates are laid on the outer sides of the bearing beams 1 and the spliced beams 2, then concrete is poured into the templates, the bearing beams 1 and the spliced beams 2 can be poured into the concrete, the concrete is solidified to form cross beams, the bearing beams 1 and the spliced beams 2 serve as reinforcement cages in the cross beams, the bearing strength and the load bearing strength of the cross beams are improved, and the construction of the whole steel structure bearing wall body is completed; because concatenation roof beam 2 possesses the extension function of certain length, cutting and measuring error between two spandrel girders 1 of adaptation that can be fine, the on-the-spot installation that carries on that can be quick possesses the characteristics that the time limit for a project is short, with low costs, improves steel construction bearing wall and erects efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (8)
1. A construction method of an assembled steel structure bearing wall body comprises two bearing beams (1), wherein one side, close to each other, of the two bearing beams (1) is provided with the same spliced beam (2), and is characterized in that the bearing beams (1) comprise two horizontally arranged first steel frames (3), one end, close to the spliced beam (2), of the two first steel frames (3) on the same side of the spliced beam (2) is welded with the same positioning plate (4), the spliced beam (2) comprises two horizontally arranged second steel frames (5), one side, close to each other, of the two second steel frames (5) is slidably provided with two vertical positioning rods (6), the outer sides of the positioning rods (6) are slidably sleeved with first rotating seats (7), the two positioning rods (6) are both welded with second rotating seats (8), and the second rotating seats (8) are positioned below the first rotating seats (7), a first rotating seat (7) positioned on one side and a second rotating seat (8) positioned on the other side are rotatably provided with a same first traction rod (9), the second rotating seat (8) positioned on one side and the first rotating seat (7) positioned on the other side are rotatably provided with a same second traction rod (10), the second traction rod (10) is rotatably arranged on the first traction rod (9), four corners of one side, close to each other, of the two positioning plates (4) are respectively provided with a mounting hole (15), a positioning screw (16) is movably arranged in the mounting hole (15), four corners of one side, far away from each other, of the two positioning rods (6) are respectively provided with a first threaded hole (17) matched with the positioning screw (16), the positioning screw (16) is in threaded connection with the corresponding first threaded hole (17), and two second threaded holes (13) are arranged on the top side of one second steel frame (5) positioned above the two second steel frames (5), a reinforcing screw rod (14) is mounted in the second threaded hole (13) in an internal thread mode, and the bottom end of the reinforcing screw rod (14) is in movable contact with the top side of the first rotating seat (7);
the construction method comprises the following steps:
s1: fixing the two bearing beams (1) between two walls respectively, extracting a positioning screw (16) on the spliced beam (2) from a positioning plate (4), then placing the spliced beam (2) between the two bearing beams (1), reinserting the positioning screw (16) into the corresponding mounting hole (15), rotating the positioning screw (16), and screwing the positioning screw (16) into the corresponding first threaded hole (17);
s2: rotating the reinforcing screw rods (14) to enable the bottom ends of the reinforcing screw rods (14) to abut against the first rotating seats (7) and move downwards, in the process that the two first rotating seats (7) move downwards, the positioning rods (6) gradually move towards the directions away from each other under the pushing action of the first traction rods (9) and the second traction rods (10), when the first rotating seats (7) and the second rotating seats (8) abut against the positioning plates (4), the reinforcing screw rods (14) stop rotating, the positioning screw rods (16) are rotated, the positioning screw rods (16) are screwed in the first threaded holes (17), the positioning rods (6) are tightly connected to the positioning plates (4) through the positioning screw rods (16), the spliced beams (2) are stably spliced between the two bearing beams (1), pouring formworks are laid on the outer sides of the bearing beams (1) and the spliced beams (2), and then concrete is built in the formworks, and finishing the construction of the whole bearing wall body.
2. The method for constructing the assembled steel structure bearing wall body according to claim 1, wherein a plurality of inclined pull rods (19) are welded on the side, close to each other, of the two first steel frames (3) on the same side of the spliced beam (2).
3. The method for constructing the assembled steel structure load-bearing wall body according to claim 1, wherein one end, away from each other, of the two first steel frames (3) positioned on the same side of the spliced beam (2) is welded with the same side plate (20), and four corners of one side of the side plate (20) are provided with bolt assembly holes.
4. The building method of the assembled steel structure bearing wall body according to claim 1, wherein two sliding grooves (11) are formed in one side, close to each other, of each of the two second steel frames (5), limiting plates (12) are welded to the top end and the bottom end of each of the positioning rods (6), the limiting plates (12) are movably mounted in the corresponding sliding grooves (11), and the sliding grooves (11) are communicated with the corresponding second threaded holes (13).
5. The method for constructing an assembled steel structure load-bearing wall according to claim 1, wherein a plurality of vertical support rods (18) are welded to the side, close to each other, of the two second steel frames (5), and the support rods (18) are positioned on the side, far away from the second traction rod (10), of the first traction rod (9).
6. The method for constructing an assembled steel structure load-bearing wall according to claim 1, wherein the positioning rod (6) is filled with grease at the outer side, and the first rotating seat (7) is slidably connected with the outer side of the positioning rod (6).
7. The construction method of the assembled steel structure load-bearing wall body according to claim 4, wherein one side of the sliding groove (11) far away from the center of the second steel frame (5) is provided with an opening, and lubricating grease is injected into the sliding groove (11).
8. The method for constructing a load-bearing wall with an assembled steel structure according to claim 1, wherein the diameter of the installation hole (15) is larger than that of the positioning screw (16).
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| CN201910177159.3A CN109972768B (en) | 2019-03-08 | 2019-03-08 | Construction method of assembled steel structure bearing wall |
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| CN201910177159.3A CN109972768B (en) | 2019-03-08 | 2019-03-08 | Construction method of assembled steel structure bearing wall |
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| JP3144465B2 (en) * | 1996-02-21 | 2001-03-12 | 義永 野島 | Wooden reinforced steel for earthquake resistance |
| CN1176286C (en) * | 2002-09-29 | 2004-11-17 | 樊志 | Method for building built-up steel structure bearing walling |
| CN101691784B (en) * | 2009-08-19 | 2014-03-05 | 贵州大学 | Steel structured wide-bay energy-saving residential building with gypsum walls and on-site layering and sectioning manufacturing method |
| FR2978216B1 (en) * | 2011-07-19 | 2014-06-13 | Cornille Ets | JOINT FOR ASSEMBLING TWO TUBULAR PIECES, ASSEMBLY DEVICE PROVIDED WITH SUCH JOINTS, DECORATIVE STRUCTURE USING SUCH DEVICES AND EDIFICE PROVIDED WITH SUCH STRUCTURE |
| CN103469889A (en) * | 2013-08-20 | 2013-12-25 | 烟台金田科技有限公司 | Steel structure concrete construction house |
| CN205243325U (en) * | 2015-10-24 | 2016-05-18 | 佛山市鸿益机电门业有限公司 | Taut structure of adjusting of door body of translation door |
| CN206034658U (en) * | 2016-08-16 | 2017-03-22 | 卓达新材料科技集团威海股份有限公司 | Connection structure of trussed girder |
| CN106522362A (en) * | 2016-12-29 | 2017-03-22 | 上海市机械施工集团有限公司 | Construction device and construction method of steel structure beam of corridor system |
| CN107700697B (en) * | 2017-09-27 | 2019-04-19 | 刘国红 | A kind of exterior wall prefabricated construction |
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