A kind of fast installation construction method suitable for high anti-seismic steel structure system outer wall ALC hanging plate

Abstract

The application relates to the technical field of building construction, in particular to a fast-mounting construction method for an ALC hanging plate of a high anti-seismic steel structure system. The method comprises the following steps: installing an ALC plate bottom angle steel component, installing an ALC plate upper angle steel component, positioning the ALC plate, fixing a hoist, hoisting the ALC plate, correcting and fixing the ALC plate, connecting ALC plate seams, injecting glue into ALC plate and steel column and H-shaped steel beam seams and the like. The application has the advantages of simple installation structure, short construction period, low manual operation difficulty, good protection of the construction theme structure, low cost, greatly improved ALC installation efficiency and facilitation of popularization of the assembly type steel structure outer wall assembly construction.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of building construction, in particular to a fast mounting construction method of an ALC hanging plate suitable for a high anti-seismic steel structure system outer wall. BACKGROUND

[0002] With the development of green buildings in the construction industry, fabricated buildings have become the current market development trend, and public buildings mainly adopt fabricated steel structures, and the non-load-bearing partition walls in and outside buildings above 0.000 mainly adopt steam pressure aerated concrete blocks and ALC steam pressure aerated concrete plates as representative partition wall plates, the steam pressure aerated concrete block technology is relatively mature, but it is a wet work method, and there are more wastes and it is not environmentally friendly.

[0003] The ALC steam pressure aerated concrete plate strip wall is a relatively advanced new technology, belongs to a fabricated construction, meets the green building and low-carbon environmental protection development concept, and is advocated by the state. The ALC plate inner partition wall installation method is relatively mature, and the working conditions are basically the same. The outer wall installation mainly adopts floor installation, that is, the ALC plate bottom has a weighted concrete floor or beam, and the technology is also relatively mature. However, the outer wall is variable in shape and complex in working condition, and if there is no bearing structure at the bottom, the installation needs to adopt a hanging plate installation technology, which is a new construction method. The existing steel structure system ALC plate outer wall installation is complex, the construction period is long, and the cost is high. If the installation efficiency of the ALC hanging plate of the outer wall can be improved, the popularity of the fabricated steel structure outer wall fabricated construction will be further improved.

[0004] Therefore, a fast mounting construction method of an ALC hanging plate suitable for a high anti-seismic steel structure system outer wall needs to be researched. SUMMARY

[0005] In view of the deficiencies in the prior art, the application provides a fast mounting construction method of an ALC hanging plate suitable for a high anti-seismic steel structure system outer wall, which solves the problems of complex installation, long construction period and high cost of the ALC plate of the steel structure system outer wall in the prior art.

[0006] In order to achieve the above purpose, the application provides a fast mounting construction method of an ALC hanging plate suitable for a high anti-seismic steel structure system outer wall, which comprises the following steps:

[0007] S100: ALC plate bottom angle steel component installation:

[0008] S101: Above the bottom structure floor, two length >=100mm overhanging beam angle steels are welded on both sides of the steel column in the direction where the ALC hanging plate needs to be arranged, and the overhanging beam angle steel and the steel column adopt a single-sided weld to form a lower side weld, and the length of the lower side weld is >=100mm.

[0009] S102: Weld two bottom lengthwise angle steels with single-sided weld to form a lower plane weld, the distance between the connecting angle steels is 300 mm, and the weld length is the same as the width of the connecting angle steel; the bottom lengthwise angle steels are symmetrically placed, the internal clamping distance is the thickness of the ALC plate + 10 mm, and the bottom lengthwise angle steels are simultaneously supported on the structural floor on both sides, and the length supported on the structural floor is ≥100 mm;

[0010] S103: One side of the bottom lengthwise angle steel is welded to the end of the outrigger beam angle steel with double-sided weld to form a lower double-sided weld, and the weld height is 5 mm;

[0011] S104: The bottom lengthwise angle steel is fixed on the structural floor on both sides with expansion bolts;

[0012] S200: ALC plate upper angle steel component installation: weld the upper lengthwise angle steel along the outside of the H-shaped steel beam parallel to the H-shaped steel beam with double-sided weld to form an upper second double-sided weld, the weld length is 50 mm, and the distance is 600 mm;

[0013] S300: ALC plate positioning: hoist the ALC plate and move it to a special cart, the cart is supported at 1 / 2 of the ALC plate, and the cart is pushed to the installation site;

[0014] S400: Fix the winch: fix the winch on the structural floor with expansion bolts, and prohibit binding the winch with steel wire rope on the steel column to avoid damaging the fire retardant coating of the steel column;

[0015] S500: ALC plate hoisting: drill holes in advance at the upper and bottom hook head bolt fixing positions of the ALC plate, the hole depth of the round washer is not more than 30 mm, the exposed bolt after tightening is 2 threads, the drilling distance from the end of the ALC plate is ≥80 mm, and the drilling is centrally arranged; clamp the H-shaped steel beam lower flange with a lifting tongs, fix the pulley on the tongs with a safety ring, after completing the binding of the ALC plate upper 1 / 3 part vertical reinforcement with steel wire rope, confirm the safety before hoisting the ALC plate, and place the ALC plate on the upper part of the internal clamping position of the two symmetric bottom lengthwise angle steels;

[0016] S600: ALC plate correction: after hoisting and positioning the ALC plate, measure the perpendicularity with a ruler, and correct it from the upper and lower parts of the ALC plate by two operators;

[0017] S601: ALC plate upper fixation: after the ALC plate verticality meets the requirements, weld the upper hook head bolt on the upper part of the ALC plate to the upper lengthwise angle steel with double-sided weld to form an upper first double-sided weld, the distance between the upper hook head bolts is ≤600 mm, and they are arranged in the middle part of the ALC plate; the outer side of the upper hook head bolt is fixed firmly with a round washer and a nut, and the exposed thread should not be less than 2 threads;

[0018] S602: ALC plate bottom fixed: the bottom hook bolt at the bottom of the ALC plate is welded on the bottom through angle steel by double-sided welding seam to form a lower double-sided welding seam, the distance between the bottom hook bolts is less than or equal to 600 mm, the bottom hook bolts are symmetrically arranged with the upper hook bolts, the outer side of the bottom hook bolt is fixed firmly by using a circular gasket and a nut, and the outer exposed thread should not be less than 2 threads;

[0019] S700: ALC plate joint connection: uniformly apply bonding mortar to the ALC plate sub and mother grooves, tightly close the ALC plate to make the sub and mother grooves effectively engage, and then fasten and connect the upper and bottom hook bolts at the upper and lower ends of the ALC plate after correcting the perpendicularity and flatness; after the bonding mortar in the joint reaches 75% strength, hang the mesh in the ALC plate anti-cracking groove, overlap 50 mm for each ALC plate, and evenly apply the anti-cracking mortar to the ALC plate surface.

[0020] S800: ALC plate and steel column, H-shaped steel beam joint glue injection: PU foaming agent is used for soft connection at the joint of the ALC plate and the steel column and the H-shaped steel beam, the foaming glue gun nozzle is stretched to the middle part of the ALC plate, the glue is extruded at a uniform speed, until the entire gap is filled with glue, after the filling material hardens, the glue overflowing the ALC plate wall body is removed, the adhesive tape is pasted, 50 mm anti-cracking strips are reserved on each side of the ALC plate and the steel column and the H-shaped steel beam, the alkali-resistant mesh is hung, 50 mm is overlapped on each side, and the anti-cracking mortar is evenly applied.

[0021] Preferably, the bottom through angle steel, the connecting angle steel, the outrigger beam angle steel and the upper through angle steel all adopt L63x6 angle steel, the welding height of the single-sided welding seam is 4 mm, and the welding height of the double-sided welding seam is 5 mm, and the welding slag needs to be removed in time after welding and anti-rust paint needs to be brushed in time.

[0022] Compared with the prior art, the present application has the following advantages:

[0023] The present application has the advantages of simple installation structure, short construction period, low manual operation difficulty, good protection of the construction theme structure, low cost, and can greatly improve the ALC installation efficiency, and is helpful for the popularization of the prefabricated steel structure outer wall assembly construction. BRIEF DESCRIPTION OF DRAWINGS

[0024] Figure 1 It is a bottom connection structure plan view of the outer wall ALC plate.

[0025] Figure 2 It is Figure 1 A-A section view.

[0026] MARKING DESCRIPTION:

[0027] 1 - upper hook bolt; 2 - bottom hook bolt; 3 - bottom length angle steel; 4 - connecting angle steel; 5 - steel column; 6 - lower plane weld; 7 - lower side weld; 8 - outrigger beam angle steel; 9 - lower double-sided weld; 10 - upper first double-sided weld; 11 - upper length angle steel; 12 - upper second double-sided weld; 13 - ALC plate; 14 - structural floor slab; 15 - H-shaped steel beam; 16 - expansion bolt; 17 - bonding mortar; 18 - PU foaming agent. DETAILED DESCRIPTION

[0028] The preferred embodiments of the present application will be described in more detail below. Although the preferred embodiments of the present application are described below, it is understood that the present application can be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided so that the present application will be thorough and complete, and will fully convey the scope of the present application to those skilled in the art.

[0029] As shown in Figure 1 , Figure 2 , it is a kind of suitable for high seismic steel structure system outer wall ALC hanging plate fast installation construction method assembly structure diagram, the structure construction installation needs the following steps:

[0030] S100: ALC plate bottom angle steel component installation:

[0031] S101: above the bottom structural floor slab 14, two length ≥100mm outrigger beam angle steel 8 is welded in the direction of steel column 5 two sides needing to set ALC hanging plate, and the outrigger beam angle steel 8 is welded with the steel column 5 using single-sided weld to form lower side weld 7, and the length of the lower side weld 7 is ≥100mm;

[0032] S102: using several connecting angle steels 4, two bottom length angle steels 3 are welded using single-sided weld to form lower plane weld 6, the interval of the several connecting angle steels 4 is 300mm, and the weld length is same as the width of the connecting angle steel 4; the bottom length angle steel 3 is symmetrically placed, and the internal clamping interval is ALC plate thickness +10mm, and the bottom length angle steel 3 is supported on the two sides structural floor slab 14 at the same time, and the length supported on the structural floor slab 14 is ≥100mm;

[0033] S103: one side of the bottom length angle steel 3 is welded to the end of the outrigger beam angle steel 8 using double-sided weld to form lower double-sided weld 9, and the weld height is 5mm;

[0034] S104: the bottom length angle steel 3 is fixed on the structural floor slab 14 using expansion bolt on both sides;

[0035] S200: ALC plate upper angle steel component installation: adopt double-sided weld welding to weld the upper longitudinal angle steel 11 along the outside of the H-shaped steel beam 15 parallel to the H-shaped steel beam 15, form the upper second double-sided weld 12, the weld length is 50mm, the interval is 600mm;

[0036] S300: ALC plate in place: hoist the ALC plate 13, move to the special trolley, the trolley is supported at 1 / 2 of the ALC plate 13, and is pushed to the installation position;

[0037] S400: Fix the winch: fix the winch on the structure floor 14 with expansion bolts, and prohibit binding the winch with steel wire rope on the steel column 5 to avoid damaging the fireproof paint of the steel column 5;

[0038] S500: ALC plate hoisting: drill holes in advance at the upper and bottom hook head bolt fixing positions of the ALC plate 13, the hole depth of the circular gasket is not more than 30mm, 2 threads are exposed after the bolt is fastened, the drilling distance from the end of the ALC plate 13 is ≥80mm, and the drilling is centrally arranged; clamp the lower flange of the H-shaped steel beam 15 with the lifting tongs, fix the pulley on the tongs with a safety ring, after the vertical steel bars in the upper 1 / 3 part of the ALC plate 13 are bound, confirm the safety and then hoist the ALC plate 13, and place the ALC plate 13 on the upper part of the two symmetrical bottom longitudinal angle steels 3;

[0039] S600: ALC plate correction: after the ALC plate 13 is hoisted and placed, measure the perpendicularity with a ruler, and correct the upper and lower parts of the ALC plate 13 by two operators respectively;

[0040] S601: ALC plate upper fixation: after the perpendicularity of the ALC plate 13 meets the requirements, weld the upper hook head bolt 1 at the upper part of the ALC plate 13 to the upper longitudinal angle steel 11 with double-sided weld, form the upper first double-sided weld 10, the interval of the upper hook head bolt 1 is ≤600mm, and the upper hook head bolt 1 is arranged at the middle part of the ALC plate 13; the outside of the upper hook head bolt 1 is fixed firmly with a circular gasket and a nut, and the exposed thread should not be less than 2 threads;

[0041] S602: ALC plate bottom fixation: weld the bottom hook head bolt 2 at the bottom of the ALC plate 13 to the bottom longitudinal angle steel 3 with double-sided weld, form the lower double-sided weld 9, the interval of the bottom hook head bolt 2 is ≤600mm, and the bottom hook head bolt 2 is arranged symmetrically with the upper hook head bolt 1; the outside of the bottom hook head bolt 2 is fixed firmly with a circular gasket and a nut, and the exposed thread should not be less than 2 threads;

[0042] S700: ALC plate joint connection: evenly apply bonding mortar 17 to the ALC plate 13 sub and mother groove, the ALC plate 13 is tightly engaged so that the sub and mother groove is effectively engaged, the verticality and flatness of the ALC plate 13 is corrected, and the upper and lower ends of the ALC plate 13 are fastened and connected again by the upper hook head bolt 1 and the bottom hook head bolt 2; after the strength of the joint bonding mortar 17 reaches 75%, the ALC plate 13 is hung in the anti-cracking groove, each ALC plate 13 is overlapped by 50mm, and the anti-cracking mortar is evenly applied to the ALC plate 13.

[0043] S800: ALC plate and steel column, H-shaped steel beam joint glue injection: PU foaming agent 18 is used for soft connection at the joint of the ALC plate 13 and the steel column 5 and the H-shaped steel beam 15, the foaming glue gun nozzle is stretched to the middle part of the ALC plate 13, the glue is extruded and then moved at a uniform speed until the entire gap is filled with glue, after the filling material is hardened, the glue overflowing the ALC plate 13 wall body is removed; the adhesive tape is pasted, the ALC plate 13 and the steel column 5 and the H-shaped steel beam 15 are left with 50mm anti-cracking belt on each side, the alkali-resistant mesh cloth is hung, each side is overlapped by 50mm, and the anti-cracking mortar is evenly applied.

[0044] In one specific embodiment, the bottom through angle steel 3, the connecting angle steel 4, the outrigger beam angle steel 8 and the upper through angle steel 11 all adopt L63x6 angle steel, the single-sided weld seam welding height is 4mm, the double-sided weld seam welding height is 5mm, and the welding all needs to remove the welding slag in time and brush anti-rust paint in time.

[0045] The above is only a preferred specific embodiment of the present application, but the protection scope of the present application is not limited thereto, any person skilled in the art can make equivalent replacement or change according to the technical solution of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A method for quick installation of ALC cladding panels for exterior walls of high seismic-resistant steel structure systems, characterized in that, Includes the following steps: S100: Installation of bottom angle steel components for ALC slab: S101: Above the bottom structural floor slab (14), weld two outrigger angle steels (8) with a length ≥100mm to the steel column (5) on both sides where ALC hanging plates need to be installed. The outrigger angle steels (8) and the steel column (5) are welded together to form a lower side weld (7) with a single-sided weld. The length of the lower side weld (7) is ≥100mm. S102: Several connecting angle steels (4) are used to weld two bottom continuous angle steels (3) with a single-sided weld to form a lower plane weld (6). The spacing between the connecting angle steels (4) is 300mm, and the weld length is the same as the width of the connecting angle steels (4). The bottom continuous angle steels (3) are placed symmetrically, and the internal clamping spacing is the thickness of the ALC plate + 10mm. The bottom continuous angle steels (3) are supported on both sides of the structural floor slabs (14), and the length of support on the structural floor slabs (14) is ≥100mm. S103: The bottom continuous angle steel (3) is welded to the end of the outward beam angle steel (8) with double-sided weld on one side to form a lower double-sided weld (9) with a weld height of 5mm; S104: The bottom continuous angle steel (3) is fixed to the structural floor slab (14) on both sides with expansion bolts; S200: Installation of upper angle steel components of ALC plate: The upper continuous angle steel (11) is welded parallel to the outside of the H-beam (15) to form the upper second double-sided weld (12) by double-sided welding, with a weld length of 50mm and a spacing of 600mm. S300: ALC board placement: Lift the ALC board (13) and move it onto a special trolley. The trolley supports 1 / 2 of the ALC board (13) and pushes it to the installation location. S400: Fixed winch: Fix the winch to the structural floor slab (14) with expansion bolts. At the same time, it is forbidden to tie the winch to the steel column (5) with wire rope to avoid the wire rope damaging the fireproof coating of the steel column (5). S500: Lifting of ALC plate: Drill holes in advance at the upper and lower hook bolt fixing points of ALC plate (13). The hole depth of the circular shim should not exceed 30mm, so that 2 threads are exposed after the bolt is tightened. The distance between the drill hole and the end of ALC plate (13) should be ≥80mm. The drill hole should be arranged in the center. Clamp the lifting clamp to the lower flange of the H-beam (15). Use a safety shackle to fix the pulley to the clamp. After the steel wire rope is tied to the vertical steel bars of the upper 1 / 3 of ALC plate (13), confirm that it is safe before lifting ALC plate (13). Place ALC plate (13) on the upper part of the internal clamping point of two symmetrical bottom continuous angle steels (3). S600: ALC plate correction: After the ALC plate (13) is hoisted into place, the verticality is measured with a straightedge, and two operators correct it at the top and bottom of the ALC plate (13). S601: ALC plate upper fixing: After the verticality of the ALC plate (13) meets the requirements, the upper hook bolts (1) of the upper part of the ALC plate (13) are welded to the upper continuous angle steel (11) with double-sided weld seam to form the upper first double-sided weld seam (10). The spacing of the upper hook bolts (1) is ≤600mm and is set in the middle of the ALC plate (13). The upper hook bolt (1) is securely fixed with a round washer and nut on the outside, and the exposed threads shall not be less than 2 threads. S602: ALC plate bottom fixing: The bottom hook bolts (2) of the bottom of the ALC plate (13) are welded to the bottom continuous angle steel (3) with double-sided welds to form the lower double-sided weld (9). The spacing of the bottom hook bolts (2) is ≤600mm and is symmetrically set with the upper hook bolts (1). The bottom hook bolts (2) are fixed firmly with round washers and nuts on the outside. The exposed threads shall not be less than 2 threads. S700: ALC board joint connection: Apply bonding mortar (17) evenly to the male and female grooves of ALC board (13), and press ALC board (13) together so that the male and female grooves can effectively interlock. After the verticality and flatness are corrected, the upper and lower ends of ALC board (13) are tightened again by the upper hook bolt (1) and the bottom hook bolt (2); after the joint bonding mortar (17) reaches 75% strength, hang the mesh in the crack-resistant groove of ALC board (13), and overlap each ALC board (13) by 50mm. Apply crack-resistant mortar flush with the large surface of ALC board (13); S800: Glue injection at the joint between ALC board and steel column and H-beam: Use PU foam (18) to softly connect the joint between ALC board (13) and steel column (5) and H-beam (15). Extend the nozzle of the foam gun to the middle of ALC board (13), squeeze out the glue and move it at a uniform speed until the entire gap is filled with glue. After the filling material hardens, remove the glue that overflows from the wall of ALC board (13); stick tape so that ALC board (13) and steel column (5) and H-beam (15) have a 50mm crack-resistant strip on each side, hang alkali-resistant mesh cloth, overlap each side by 50mm, and apply crack-resistant mortar evenly.

2. The method for quick installation of ALC cladding panels for exterior walls of high seismic-resistant steel structure systems according to claim 1, characterized in that, The bottom continuous angle steel (3), connecting angle steel (4), outward beam angle steel (8), and upper continuous angle steel (11) are all made of L63×6 angle steel. The weld height of the single-sided weld is 4mm, and the weld height of the double-sided weld is 5mm. All the welds must be cleaned of weld slag in time after welding and anti-rust paint must be applied in time.

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