Construction scheme and process of broken bridge aluminum window
The broken bridge aluminum doors and windows are filled with PU resin, which is known as the king of heat insulation, into the special designed aluminum alloy cavity, and then the aluminum wall is separated to form a broken bridge. It's blocking the heat transfer. With 5 + 9 + 5 insulating glass, the K value of thermal conductivity decreases from 5.93w/m2k of ordinary aluminum doors and windows to 2.94w/m2k. It can save energy by more than 40% in winter and air conditioning in summer. In the cold winter, when the temperature difference is 500C, the doors and windows will not dew, thus solving the problem of indoor decoration pollution caused by ordinary aluminum alloy doors and windows. At the same time, the sound insulation performance of doors and windows is kept between 30-40db, so that people can have a quiet and warm space in the downtown. The main products of Liaoning Tainuo Shoujia sunshine house are sunshine room and various bridge broken aluminum doors and windows. The door and window can be designed according to the user's requirements, such as durability, durability, durability and durability.
1、 Engineering design
1. In engineering design, strength design calculation and test must be carried out. Only according to the standard atlas and the type test report provided by the profile manufacturer, production, installation and acceptance are carried out. This is a wrong or even dangerous behavior. Because the standard atlas is only the detailed drawing of a series of windows, and does not indicate the load that can be borne by the construction according to the drawing, it can not be used as the basis for production, installation and acceptance. For different series of doors and windows, the strength and deflection must be checked or tested according to the most unfavorable principle of stress state.
2. The strength and stiffness of floor doors and windows are generally insufficient, so the main stressed column (beam) should be strengthened.
3. When the height of exterior doors and windows of high-rise buildings is greater than or equal to 30m, it shall be implemented according to the code for design of lightning protection of buildings (GB 50057).
2、 Material selection
1. The aluminum profiles for bridge breaking must meet the requirements of GB / T5237-2000 "bridge breaking aluminum building profiles".
2. The selection and configuration of hardware accessories is one of the important factors to ensure the quality of doors and windows. Even the window type with excellent performance must be guaranteed by the selection and configuration of high-quality accessories.
3. The pulley, wool top, anti falling sealer and lower sealing block of sliding doors and windows are important accessories to ensure the quality of sliding doors and windows. Pulley is the key to the smooth opening and closing of doors and windows, and rolling bearing nylon wheel should be used. The anti falling sealer is the safety guarantee to prevent the window sash from falling off. At the same time, it has the sealing function between the hook and the upper slide. ABS plastic and EPDM with good durability should be used. The lower sealing block plays a sealing role between the hook and the glide way, which can effectively prevent water splashing under the action of fluctuating load. EPDM should be used. Wool top is the sealing element of window sash and window frame, which determines the air tightness of doors and windows. The ordinary chemical fiber top will curl and lose its sealing function when meeting water, so silicified wool top must be used.
4. The hinge (or sliding window friction hinge), handle and sealant strip between frame and leaf are the most important accessories to ensure the quality of flat door and window. The bearing capacity of the hinge (or the friction hinge of sliding window) is the key to the safety of the door and window and the smooth opening and closing. The bearing capacity of the hinge is stronger than that of the friction hinge, so the hinge can be used for the window with larger partition, and the friction hinge is only suitable for the window with smaller partition or upper suspension window. The handle is an important accessory related to the safety and sealing performance of doors and windows. The ordinary handle is only applicable to the window sash with small partition and load, while the European multi-point handle is suitable for the window sash with large partition and load. The sealant strip between the frame and leaf ensures the air tightness and water tightness of the flat open door and window. The sealing effectiveness of the original PVC adhesive strip is about 5 years, and the Recycled PVC adhesive strip is recycled It is ideal to use EPDM rubber with good weather resistance.