GFRC design basis

2021-11-09

First, GRC exterior wall decoration components of the design work
1. Building facade design (ie, component design).
2. Component and building connection node design.
3. Component design.

GRC exterior wall design and application design must comply with the relevant national building and structural specifications. Building facade design and component selection

Second, GRC exterior decorative components of the building facade design requirements
1. Meet the requirements of building use function.
2. Coordinate with the environment in which the building is located.
3. beautiful, harmonious, style unity.
4. The ratio is correct and the scale is appropriate.
5. Technology is feasible and easy to install.
6. Economical and reasonable.

Third, the application of components to be given a detailed design drawings, node map
1. Component type, variety, size, texture, color.
2. The number and number of parts used.
3. Combination of components and seams way.
4. Component of the mouth closed processing.

Fourth, horizontal continuous components (such as eaves line, waist line) and the corner of the treatment
1. Determine the gap at the component connection.Taking into account the wet and dry deformation and temperature deformation factors, horizontal continuous components must be between the expansion joints.Single length of not more than 2m of the components of its expansion joints width of not less than 5mm. Single length of more than 2m components, expansion joints should be 5-10mm wide.
2.There are three ways of gap handling between components:
(1) clear seam. Similar to the real stone components, to maintain the natural seam effect.
(2) half clear seam. With rubber strips (or plastic strips) seams, building sealant caulks.
(3) dark seam. With rubber strips (or plastic strips) seams, building sealant caulking after scraping putty, brush paint, so that the seams and components on the same surface.
(Note: semi-clear seam and dark seam treatment should not use cement mortar caulking.)
3. The length of each component must be determined by the factors such as the size of the building's axis, the position of the door and window, the change of the corner of the wall and the position of the wall expansion joint (settlement slit), so that the connecting seam position of the component and the building facade Harmonized symmetrical symmetry.And the size of the component is suitable for making and installing. Horizontal component length range can be between 1.2-2.4m.
4. The horizontal members at the corner of the building shall be designed as male and female corners and shall not be used for splicing. The length of the yin and yang angle can be between 0.3-1.2m.

Fifth, the length of continuous continuous components (such as columns, vertical sets, etc.) length, seam way.
1. Determine the length of each component of the longitudinal continuous member according to the conditions of the facade, the structural conditions and the conditions of manufacture, transportation and installation. The longitudinal length of a single member is generally between 1.2 and 3.6 m. A column with a diameter greater than 800, such as a transport installation, can also be made to 5-6 m long to avoid or reduce cracks.
2. The width of the slit longitudinally continuous handling member connected at the same horizontal continuous member.
3. The longitudinal design of the longitudinal continuous member shall avoid the transmission of the weight of the upper layer member to the lower member.
4. The longitudinal members can not be set across the expansion joints (settling joints).

Six, the combination of components

(Such as the door and window sets, the combination of mountain flowers, columns and feet from the composition of the colonnade, etc.) should ensure that the proportion between the components of the appropriate relationship between the logical relationship is reasonable, seam processing can be the same with the horizontal continuous components.Flat continuous components (such as mountain tai stone, continuous laying of the decorative panels, etc.) shall be based on the detailed dimensions of the building facade drawing components to determine the structure of the transverse joints of the joints and the width of the joints (slot width optional 10-30mm).Calculate the detailed size and quantity of the irregularities required for stitching and closing, so as to avoid cutting the cutting members on site. The planar continuous member shall be disconnected at the building expansion joint (sinker).

Seven, the connection of components and walls
1. The component is connected to the wall.

(1) no waterproof requirements, available cement mortar to fill.

(2) there are waterproof requirements, to be used to seal the seal or other waterproof material.
2. The connection between the component and the wall change (such as cornice, window, door, balcony, rain Peng, water outlet, wall mutations and corners) should be based on the actual design of detailed nodes. In the edge of the site to pay special attention to the installation of bolts to split the possibility of the wall, so the location of the components to ensure that the installation of the bolt from the edge to ensure a certain distance.
3. The relationship between falling water pipes, plug-in equipment (such as air conditioners) and components.

Eight, highlight the wall with water may be the components of the drainage should consider the slope.
The wall members can be routed to the roof, with wall members should be discharged to the wall, the top surface drainage slope should be not less than 3%.For aerated concrete, hollow blocks, lightweight wall panels and hollow bricks and other lightweight walls and old buildings have been crisp or hollowed out of the wall, the design facade and optional components must consider the wall structure of the safety and reliability, To make the corresponding structural design and treatment program.

Previous: Shengfan GFRC production process

Next: ShengFanjc GFRC Introduction