(5) Structural area refers to the area occupied by walls and columns.
10.
What are building area, usage area and usage rate? What are traffic area and structural area? Answer: (1) Building area refers to the product of the outsourcing size of the building length and width multiplied by the number of floors.
8.
What is the total height of the building? Answer: The total height of the building refers to the total height from the outdoor terrace to the top of the cornice.
(3) The occupancy rate, also known as the room rate, refers to the percentage of the usable area in the building area.
How are buildings graded? Answer: The grade of buildings is divided according to the durability grade (service life) and fire resistance grade (fire resistance life).
What is a full shear wall structure? Answer: The full shear wall structure is a structure that uses the internal walls (or internal and external walls) of the building as the load-bearing skeleton to bear the vertical and horizontal loads of the building…
5.
(1) According to the durability level, it can be divided into four levels: Level I, with a durability life of more than 100 years; Class II, with a service life of 50-100 years; Class III, with a durability of 25~50 years; Class IV, with a service life of less than 15 years.
6.
What is floor height? What is clear height? Answer: Floor height refers to the height between floors of a building, and the height of the floor or ground from this floor to the next floor or ground; Clear height refers to the clear height of the room and the height from the ground to the ceiling.
(2) According to the fire resistance rating, it is divided into four levels: from level I to level IV, the fire resistance of the building is gradually reduced.
It is generally circled on the drawings with red pen, which has legal effect.
What is frame structure? Answer: The frame structure refers to the skeleton composed of columns, longitudinal beams, transverse beams and floor slabs as the load-bearing structure, and the wall is the enclosure structure.
(4) Traffic area refers to the net area of such traffic facilities as walkways, staircases, elevators, etc.
3.
Because the horizontal shear force that high-rise buildings must resist is mainly caused by earthquakes, shear walls are also called seismic walls.
The length of shear wall shall be designed according to the standard of 50mm per square meter of building.
It consists of usable area, traffic area and structural area.
What is a shear wall? Answer: Shear wall refers to the wall added in the frame structure to resist horizontal shear force.
What is the red line? Answer: The red line refers to the floor area approved by the planning department to the construction unit.
9.
2.
1.
What is brick concrete structure? Answer: The vertical load-bearing components of the house are brick walls or brick columns, and the horizontal load-bearing components are reinforced concrete floors and roof slabs.
(2) The use area refers to the net area of the main use room and the auxiliary use room (the net area is the product of the net size obtained by subtracting the wall thickness from the axis size).
4.
What is a shear wall structure? Answer: Shear wall structure means that the vertical load is shared by the frame and shear wall; The frame bears 20%~30% of the horizontal load, and the shear wall bears 70%~80% of the structure.
7.
Such structural forms are called brick concrete structures.
