I would like to ask the great god to help me quote for the double-package project of dry-hanging aluminum-plastic panels.

2 Anchor installation

Skeleton anchors should use embedded parts as far as possible, and those without embedded parts should use rear embedded parts. The structural form of embedded parts shall meet the design requirements. Before construction, the embedded parts shall be inspected according to the datum axis, midline and datum horizontal point of the project. Generally, the allowable position and dimension deviation is plus or minus ±20mm, and the anchor bolts shall be pulled out on site, and can only be used after reaching the strength requirements. When the position of the embedded part is out of tolerance, it can't be used or leaked, the scheme of fixing the embedded part with expansion bolts should be put forward according to the actual situation, and it should be reported to the design unit for approval, and the pull-out test should be done on site and recorded. Anchors generally consist of embedded plates and connecting angle codes. During construction, according to the design requirements, accurately mark the position of the embedded plate on the center line of the measured mullion, then punch and fix the embedded parts, and lead the center line of the mullion to 0.8mm steel wire (both ends are screwed with flower basket screws) as the marking control line. Re-use the level gauge and standard steel embedded parts, then calculate the position of the connection angle code, mark it on the embedded plate with a line, and check the position of the connection angle code on the same side of the mullion with a stay wire, without deviation. After the position of the corner code is determined, the corner code shall be welded to the buried plate according to this position, and the width and length of the weld shall meet the design requirements. After welding, the joint should be derusted again and painted with antirust paint twice. 3. Fabrication and installation of skeleton

(1) Establish datum layer frame: determine datum layer according to datum line error and measured external wall surface, then erect datum frames, and select two or three datum frames for each plane (depending on length). The frame of reference shall ensure the verticality of the position and the absolute accuracy of the horizontal height. After the bottom frame is erected, divide the frame at the grass-roots level and check whether the position of each side frame is in line with the design. After the inspection is correct, submit the quality inspection records to the owner and supervision unit for re-inspection, and install other frameworks in turn after the re-inspection is qualified. (2) Connection between the skeleton and the main body: the skeleton and the main body are connected with the embedded parts and the main body by vertical frames through connecting angle steel codes, and the contact surfaces between the angle steel codes and the vertical frames are separated by nylon pads.

Prevent potential corrosion between different metals. The transition steel angle code is welded with the embedded plate by spot welding first, then adjusting, and fully welding after accurate adjustment. Brush anti-rust paint after welding and do anti-corrosion treatment. (3) mullion-mullion connection: When installing the reference mullion, install the upper end of the mullion as described above, insert the cutting root cutting core into the lower end of the mullion, and pre-fix the insert on the main body. When installing mullions above the reference frame, prepare mullions on the workbench according to the top, then transport them to the designated position, put the lower end of mullions on the insert at the upper end of the reference frame, and place 8mm thick telescopic pads between mullions. After the upper end of mullions is welded firmly, remove the telescopic pads to ensure that the distance between mullions is 16 mm, and each mullion is fixed at the upper end. The frame installation method on mullions is similar. (4) When installing the mullion below the reference frame, first remove the ferrule at the lower end of the reference frame, insert it into the cavity at the upper end of the lower mullion, and then insert it into the cavity at the lower end of the reference frame after connecting with the mullion, maintain the expansion joint of 18mm, adjust the accuracy of the mullion position, and finally connect it firmly. When installing the lower frame, use structural adhesive to pull rivets in turn. @ 3004 reference frame

Connected by beams and window sills.

(5) Connection of mullions and cross frames: The mullions and cross frames are connected by aluminum angle pieces and bolts. Firstly, according to the frame, a set of cross frames are sleeved on the corner pieces corresponding to two adjacent mullions, and the contact surface between the cross frames and mullions is padded with a rubber pad with a thickness of 1mm (to avoid hard contact, the cross frames and mullions can freely expand and contract when the temperature changes). Adjust the entrance and exit positions of the transverse frame to keep the outer surface of the transverse frame and the outer surface of the longitudinal frame on a vertical plane; Adjust the up-and-down position of the cross frame, check the levelness of the cross frame with a spirit level to ensure that the position of the cross frame meets the frame size requirements of the design drawings, and then connect the cross frame and the corner pieces with bolts. (4) Before erecting the frame, the outer surface of the profile should be affixed with protective tape, and the glass contact surface should be put on with tape in advance to avoid hard contact between glass and profile. When wearing the adhesive tape, first cut a piece of adhesive tape corresponding to the length of the horizontal frame and the vertical frame, and then thread it into the grooves of the horizontal frame and the vertical frame. When wearing rubber strip, it is necessary to put an end to the gap in the middle, and the joints of rubber strip should be glued with special glue. 4, aluminum-plastic composite board (panel) processing

Aluminum-plastic composite board is made by laminating an aluminum plate on the top and bottom of the plastic substrate, then roll coating vinyl fluoride resin on the surface of the aluminum plate and baking. The aluminum-plastic plate is mechanically milled, leaving a 0.3mm thick core material to avoid damaging the inner surface of the panel. After cutting and folding, the ribs were strengthened. After the installation parts are installed, the finished products are processed.

5. Panel installation

After the welding of steel skeleton is completed, ensure that the connection is firm, the position and size are accurate, and the columns and beams are outside.

Determine the position of joints between plates. The aluminum-plastic plate is connected with the aluminum-plastic plate by adding side ribs and middle ribs of structural adhesive. The corners and notches of the folding board are sealed with weather-resistant adhesive. The aluminum corner length is generally 35mm, and the spacing around the plate is 300 ~ 400 mm. The aluminum angle and the plate are connected into a whole through a core-pulling aluminum rivet. The plates are installed from top to bottom, and the aluminum corners around the plates are fixed on the steel skeleton with high-strength self-tapping nails. Panels should be fixed in a suitable way according to their materials. Generally, after the edge of the panel is folded, it is directly fixed on the skeleton with self-tapping nails or fixed with angle steel with self-tapping nails. Before installing the decorative panel, mark the position of the panel on the skeleton and draw lines to control the vertical and horizontal position of the whole wallboard. When installing, the fixed point should be stressed evenly, and the board surface should not be squeezed or knocked to avoid concave-convex or warping deformation. At the same time, the decorative board should be handled with care to avoid bumping and damage to the surface paint film. Panel installation should be firm, the number of fixed points should meet the design and specification requirements, and the construction quality should be strictly controlled during construction to ensure smooth surface and straight joints. 6. Sealing and gluing

Use weather-resistant glue with the same design color for gluing. Before gluing, a foam stick with a width greater than 2-4 mm should be embedded in the joint of the board, and the embedding depth should be uniform. The coating thickness is generally 65438+ 0/2 of the joint width. Before gluing, scrape the glue joint into a concave surface with a special scraper. The rubber surface should be smooth and round, and there should be no sagging and folding. Immediately after scraping, tear off the masking paper on both sides of the seam. Outdoor gluing operation is not suitable in rainy days. 7. Repair and installation

The joint between the main body of the engineering building and the curtain wall frame should be sealed and repaired. Its material is aluminum-plastic plate. Firstly, the sealing plate is processed into the required shape according to the sealing joint structure. During installation, one side is connected to the frame with self-tapping rivets or self-tapping nails, and the other side is guaranteed to have enough contact surface with the main body and fixed with nails. The joint between sealing and repairing skin is sealed with thick sealant. In order to achieve the purpose of thermal insulation and fire prevention, materials such as thermal insulation rock wool should be filled inside and between the sealing plates. 8. Installation of lightning protection system

According to the characteristics of the lightning protection system of the whole building project, during the curtain wall frame installation, each layer of frame is connected with the main lightning protection system on the curtain wall frame according to the lightning protection design node diagram, forming a lightning protection network of 10m× 10m to prevent the curtain wall from being damaged due to thunderstorm weather. The installation of lightning protection system shall conform to relevant national standards and specifications. Each frame with windows is connected to at least one point in the wall. 9. Cleaning and washing

After the weather-resistant adhesive is cured, clean the whole aluminum-plastic board wall with clean water or neutral cleaning agent (when cleaning agent and facing, the decorative boards on both sides of the board seam should be pasted with masking paper for protection to prevent pollution, and the solid material of the facing layer cannot react after finishing). Some places with serious pollution can be cleaned with organic solvents, but it is forbidden to scrape with sharp objects to avoid damaging the surface coating of decorative plates. After cleaning, special personnel shall be designated for protection, and warning signs shall be set in obvious positions to prevent pollution or damage.

Material requirements and main machines and tools

Main materials: aluminum-plastic composite board, profile skeleton, embedded parts, connectors, caulking sealing materials and fasteners. Profile skeleton mainly includes: aluminum alloy profile skeleton and section steel skeleton. The selection of skeleton materials should meet the design requirements, and the selection specifications and materials of skeleton should meet the national norms and relevant standards. Embedded parts and connectors: embedded parts or rear embedded parts are generally used for skeleton anchorage, and the form of rear embedded parts should meet the design requirements, and pull-out tests should be carried out on site; When the steel plate joint is connected with the heterogeneous skeleton, an organic pad should be placed in the middle to avoid electrochemical corrosion.

The structural bonding material must be neutral silicone structural sealant, and its performance must meet the requirements of building silicone structural sealant GB 16776 (silicone structural sealant must be used within the validity period). Fasteners are mainly screws and self-tapping, and their materials are generally stainless steel or aluminum products. The selection of fasteners should meet the design requirements, and the quality should meet the national norms and relevant standards. Main machines and tools (tools): electric welding machine, profile cutting machine, pistol drill, theodolite, level meter, rivet gun, self-tapping drill, slot milling machine, etc.