Industrialization: standardized design, factory production, assembly construction and integrated decoration are the new industrialized construction methods in the future.

The integral structure is formed by overlapping reinforcement and post cast concrete in the cavity of wallboard; The experimental research shows that the seismic performance of the system is basically consistent with that of the cast-in-place structure, and fully meets the requirements of the current national standards.

02 hollow shear wall system: Eve / Youde management shares high assembly rate, good integrity, high efficiency, mature technology, large content of building concrete and reinforcement, and good structural integrity, Compared with other similar products at home and abroad, the biggest advantage of the precast circular orifice plate assembled shear wall structure system that can be applied to the external wall assembly of underground buildings is that the original “customized production” (the corresponding products can be produced only after the design drawing is completed) has become the product production line of precast components, which is compared with the flat mold production line of other similar products at home and abroad, The whole production line of precast circular orifice plate cast shear wall structure system adopts group formwork production, which has the advantages of small floor area, high production efficiency, cost saving, and greatly shortens the production cycle.

③ Cost.

Average cost of a single sleeve (sleeve + grouting material + auxiliary material + labor) = 100 yuan.

The external wall still adopts the sandwich structure of “integration of structural insulation and decoration”, which can make full use of the existing assembly line equipment and adopt the anti striking process to realize the finishing effect of fair faced concrete, artistic concrete and porcelain plate.

The project adopts the structural form of concrete-filled steel tubular frame + composite steel plate shear wall (damper), PC external wall panel, aerated concrete external wall, reinforced truss floor support plate, steel staircase and integrated internal installation system.

Considering that the low-rise building basically does not produce overturning force under the action of horizontal force and is dominated by shear force, the sleeve is omitted and the round hole dowel bar grouting connection is directly adopted to reduce the cost and construction difficulty.

The minimum size of the internal cavity of the wallboard is greater than 10cm, which is easy to pour and compact concrete.

Advantages: suitable for low-rise buildings, simple and fast connection nodes, no formwork erection, less on-site pouring, Pinggu District cast experimental farm house project – dry connection 06 full bolt connection technical system / Youde management sharing Hui 07 steel structure residential system / Youde management sharing Hui 4 9-16 storey cast steel structure residential buildings, with a total construction area of 31685.49 m2.

The scholarly reinforcement connection mode and the vertical reinforcement of wall and edge components are overlapped, which is convenient to check and ensure the reinforcement connection quality.

Youde management sharing pool management consulting ｜ management training ｜ management software highly concentrated management essence sharing and rapid improvement of management capability recommended attention: Youde management sharing pool (uduc_management) click the above figure to view details 01 reinforced concrete slab structure system / Youde management sharing pool grouting sleeve connection is applicable to large-diameter reinforcement, suitable for centralized reinforcement connection, and can be connected directly or indirectly.

Advantages: suitable for large diameter reinforcement, wide application and mature technology; It is suitable for centralized connection of reinforcement, which can be in the form of direct connection and indirect connection; It is convenient for on-site operation.

Disadvantages: high cost, difficult connection operation and hidden detection.

The external wall has good thermal insulation, fire resistance and durability.

Greening: green construction is the concentrated expression of modern construction civilization and the overall improvement of the overall quality of the housing construction process.

Large plate and light weight are conducive to rapid and low-cost construction.

05 formwork free dry connection system / vertical joint of Youde management pool: by leaving polygonal keyway at the end of the wall and embedding high-strength steel wire rope connecting ring in the wall, when the precast wall is installed in place, insert reinforcement into the connecting ring on both sides, and fill the shear keyway with high-strength grouting material horizontal joint: reserve a square steel connecting seat at the bottom of the wall as the installation and operation space of anchor bolts, The upper wall panels are connected by anchor bolts.

It is urgent to solve the problem of grouting shutdown in winter.

The future development direction of precast construction industry in the future, China’s construction industry needs to embark on the road of green, industrialization, socialization and information development.

The existing technology greatly increases the detection cost.

Advantages: the upper and lower shear walls are cast-in-situ connected, and the inner and outer wall panels and the inner core are stressed as a whole; The precast part replaces part of the formwork and can be produced fully automatically.

Compared with the prior art, under the premise of realizing the same building function, the cost of high-rise residence with prefabrication rate of about 40% can be reduced by about 200 yuan / m2.

The inner and outer wall panels are patented special hollow structural wall panels, and other components are the same as the current shear wall structure.

04 longitudinal rib laminated shear wall structure / Youde management share.

The main problems in the process of reinforcement sleeve grouting ① structural safety.

Informatization: with the deep integration of informatization and industrialization, information technology will become an important tool and means for the construction industry in the future—.

Socialization: EPC is an important way to realize the specialization, intensification and socialized mass production of engineering construction.

② Duration.

03 laminated shear wall system (double skin wall) / Youde management sharing double skin wall connection factory precast two plates are overlapped, A post cast concrete area is reserved in the inner core between the two walls.

Group grouting technology can be used for grouting, with high construction efficiency.

The content of building concrete and reinforcement is large, and the structural integrity is good.

Flat Rubber Recess Former

It can be applied to the external wall assembly of underground buildings.

Lack of effective means to detect the quality of sleeve grouting.

The sleeve free reinforcement lap connection technology is used to avoid the hidden danger of sleeve grouting.