Design and Construction of Retained Water-retaining Roofing for Super High-rise Buildings on the Upper Floor of Ju-Lan Plaza, Roof Structure i Construction and Construction Lu Xiangqiao, Huang Ying, Wang Lei (Shanghai Hang Lung Plaza, Shanghai Construction Engineering Design and Research Institute adopts inverted waterproof insulation With noodles, its structural design is reasonable, waterproof and heat insulation is superb, and construction is simple, it is one of the development direction of modern roof. Keywords: high-rise buildings, inverted waterproofing, thermal insulation, roofing, structural design, engineering, general information, Shanghai Henglong Plaza, located on Nanjing West Road, Shanghai, with a total height of 10,000 square meters, built by the Hong Kong Hang Lung Group and designed by the American Architects Office, Shanghai City Construction Engineering Design and Research Institute has served as a deep drawing design for construction drawings and water supply and drainage professional. The project uses more advanced foreign technologies and materials in design and construction. The design and construction of the roof structure is one of them. The roof of the project mainly includes the podium floor and the roof of the main floor. The podium is divided into the district (atrium part) area (part of the mall (circular hall part) and the district corridor part) according to the function and shape, except for the area (tower Part) The roof is occupied by equipment and the area roof has two large glass roofs. The rest of the roofs are open-type roof sightseeing platforms, including large-area planting roofs. Through the use of green bench lighting and other arrangements, the entire The design of the skirt house is a beautiful public outdoor activity venue, which has become an important component of the entire building. The figure shows the structure of the inverted thermal insulation roof commonly used abroad. Structural Features of Inverted Roofing Inverted insulation roofing of the Hang Lung Plaza project uses the unsupported inverted roof with brackets with adjustable inverted roofs and inverted planting roofs, depending on the site of use. Unsupported Inverted Roofing Unsupported Inverted Roofing is used for ordinary roofing applications, including the roofing of the equipment area (zones and districts. This type of house faces the ground to drain the slope, completes the drainage in the facing layer, and the optional floor tile for the facing material. Prefabricated concrete slabs, which can be either fixed or unfixed (see thick granite flooring for cement sand padding combined layers. 3 thick extruded polystyrene insulation panels for linoleum insulation. 5 waterproof layer fine stone concrete for slope Floor Minimum Slope Drainage Slope Slope Concrete Structure Roof Panel Plane Without Stand Inverted Roof Planting Area Granite Stool Scaffolding Granite Roof Glass Skylight Prefabricated Precast Concrete Floor Plane Rooftop Plane Schematic Due to the above reasons, the roof of Hang Lung Plaza is being designed The use of the brackets with adjustable brackets for inverted roofs in large-area open roofs and sightseeing platforms, such as the area, uses an adjustable inverted roof with brackets. This type of roof is drained to the floor through the waterproof layer under the insulation layer. The special construction of the ground and the decorative layer is laid by an adjustable bracket overhead and adjusted to a completely flat state. The project's facing material is made of thick granite stone slabs. (See the inverted planting roof area. In addition to the outdoor platform, there are also a number of thick and thick granite floorings with adjustable sizes. The filter layer is thick extruded polystyrene. Thermal insulation panels Owens Corning insulation blanket waterproofing layer fine stone concrete to find the slope minimum thickness to the drain outlet slope slope concrete structure roof plate roof drainage floor drain diagram with bracket adjustable inverted roof green space, namely the planting roof, the roof of these parts The use of an inverted planting roof that drains through a pebble drainage floor to a floor drain not only serves the purpose of beautifying the green roof, but also improves the roof's microclimate through greening and soil improvement, and enhances the thermal insulation effect of the roof ( In the figure, use the electric stirrer to mix evenly (mixture should be used up within a few hours with a small roller brush evenly applied to the surface of the base layer, brushing is appropriate for one degree, the coating amount per degree is about one resistance, each degree The coating distance is more than 1 hour. After the waterproof layer is completely cured and passed the water storage test, the next process can be performed. Construction. Insulation material is placed on top of the waterproof layer due to the insulation material of the inverted roof, especially if there is a bracket to adjust the drainage of the inverted roof, it is drained to the floor through the waterproof layer under the insulation layer, which requires an inverted roof. Insulation materials not only have a permanent thermal insulation performance, but also require a strong hydrophobicity and the ability to prevent the penetration of water vapor, and have a certain compressive strength to withstand the decorative material on the bracket. After comparing various materials, the Owens Corning() extruded foam insulation board was used on the roof of the Plaza 66. The product was extruded from polystyrene and had a dense surface layer and closed-cell structure. Honeycomb structure, there are no gaps between the walls, through experimental testing, this material structure has good thermal insulation properties and compressive strength, can effectively prevent rain leaching and moisture penetration (see Table Extruded Polystyrene The technical performance of the vinyl sheet sucks. Water density compressive strength coefficient of thermal conductivity vapor permeability system is called the use of temperature rate n Secretary. A thick planted soil Refractory filter layer thick extruded polystyrene insulation board (Owens Corning) Oil blanket isolation layer Waterproof layer Fine stone Concrete slope layer (minimum thickness 30, to drain Concrete structure roof plate Roof draining floor drain diagram The inverted roofing roofing filter layer is laid on top of the insulation material to act as a filter rainwater to collect dust to prevent clogging and prevent sunlight from directly passing through the gap between the surface layer plates to irradiate the insulation. Aging on the material, it is generally used non-woven fiber cloth laying. The insulation layer is arranged between the heat preservation layer and the waterproof layer to prevent the insulation material from being in a state of incompatibility between the heat insulation material and the cracking or the chemical reaction between the two. The roof of the Hang Lung Plaza uses linoleum as the insulation material. Not only played a role in isolation, but also improved the overall waterproof performance of the roof. Inverted roofing material Inverted roofing can be divided into top layer material from top to bottom. Filter layer Thermal insulation layer Waterproof layer Leveling layer structure Roof panel, etc. Since the insulation layer of the inverted roof is above the waterproof layer, choose the right one. Thermal insulation materials and waterproof materials are the key to ensure the quality of inverted roofs. Waterproof materials Because the waterproof seams have more shear seams, it is difficult for the joints of some special parts to be firmly bonded and tightly closed. This will cause hidden troubles in the project. In order to improve the overall waterproof performance of the roof, Hang Lung The square used a flexible new waterproofing process for polyurethane waterproofing on roofing waterproofing materials (Kalai's ratio of Grade A to xylene was used in the construction of the waterproofing material for roofing. Conclusion The engineering practice shows that the Inverted Thermal Insulation Roofing Structure used in the Hang Lung Plaza Project, With a certain degree of advancement, compared with the traditional roof structure, the inverted roof has many obvious advantages. In general, the domestic design of the insulation roof is to do the leveling layer waterproof layer and protective layer on the insulation layer, while the inverted type Roofing is to put the waterproof layer under the insulation layer, so that not only the waterproof layer is fully protected, the surface of the waterproof material is prevented from being damaged due to the dramatic changes in the outside temperature, and the use of the waterproof material is prolonged. Years, and is easier to repair than traditional roof construction, and it is unnecessary to install exhaust system. In addition to the roof exhaust riser becomes clean and easy to design and layout environment beautification. Therefore, this type of roof structure is relatively mature in foreign countries and has a long history of use. I believe that it will soon be popularized and used in our country. (Building Construction) Volume Refrigerator Parts,Air Cooled Condenser,Air Conditioning Condenser,Refrigerator Loop Pipe Suzhou Green New Material Technology Co., Ltd. , https://www.szgreenvip.com