use

Residential floor classification

Height classification of civil buildings other than residential buildings

one type

Category II

Height exceeds 24 or 27m

Single multi-story building

height calculation

The height of the indoor roof from the outdoor floor shall not exceed 1.5m in the semi-basement

Open space at the bottom of the building with an indoor height not exceeding 2.2m

Roof out of roof machine room, stairwell, etc.

Structure, enclosure, equipment

The minimum clear width for hospital evacuation is 1.3 meters

Residential 1.1 meters

Other 1.2 meters

0.55 (0~0.15)m

The clear height of the platform is not less than 2m, and the clear height of the stairs is 2.2m.

Number of steps: 18, 3 steps

Pay attention to the cold bridge phenomenon in internal insulation

Exterior wall decoration joints

Tightening the feet is not small and 700

Horizontal moisture barrier

The drip line is not less than 60mm

2% minimum slope

1% minimum planting soil roof

External drainage priority

Basic requirements for the construction of fire doors, fire windows and fire shutters

The bottom height of public walkway windows should not be less than 2m

If the window sill is lower than 0.8, take protective measures

Bonding, mechanical fixing, welding connections

Weather Resistant Sealant Caulking

Brick joint width>5mm, depth<3mm

Concrete or plaster base

wood base

Moisture content<=

Surface layer, bonding layer, base layer

load carrying capacity limit state

Force

Destruction, collapse, loss of stability, fatigue damage

Deformation, crack, amplitude words

deformation

normal use limit state

Safety and applicability over time

Aging, rust

In other environments, the concrete grade increases

lowest level

Prestressed plate C30

Structural column process: steel bars, masonry, formwork, and pouring

Residential buildings below 6 floors

Below 15 floors

Advantages: Flexible floor plan. Large space and easy facade management

Disadvantages: small lateral stiffness, too many layers causing lateral displacement

Within 180m height range

Advantages: large lateral stiffness and small displacement

Disadvantages: small distance between shear walls, inflexible layout, not suitable for large spaces, heavy weight

The vertical load frame bears and the horizontal load shear wall bears (80% or more)

Below 170m

Closed cylinder cantilever beam

300m height

truss structure system

High-order superstatically indeterminate

The space is stressed, and the rod is only subjected to axial force.

Mainly under pressure

Plane force

Horizontal reaction force produced by vertical force

The suspension cable bears tension. The smaller the verticality in the mid-span, the greater the tension.

direct

indirect

static

dynamic

Uniform surface load, line, concentration

vertical horizontal

Disadvantages of concrete structure

Stress characteristics of beams and plates

Disadvantages of masonry construction

masonry construction

Structural material requirements

The reinforced layer of high-rise steel structures increases the seismic resistance level by one level.

It is not damaged by a small earthquake, can be repaired by a moderate earthquake, and does not collapse by a large earthquake.

A, B, C and D

Level 12 seismic fortification intensity

Structural columns, ring beams, walls, stairwells

Strong nodes, strong anchorage; limit the minimum steel bar diameter, limit the minimum reinforcement ratio of the weak layer

Columns are larger than beams

Top of column>Bottom of column

Corner column>Inner column

Short column>General column

damaging effects

Concrete earthquake resistance measures

Construction speed block, project construction cycle period, and characteristics conducive to winter construction

One-time molding, integrated door and window decoration

Construction schedule schedule

Resource optimization

Detailed design

Flexible connection

Elastic-plastic deformation occurs at the joint under earthquake action

Laminated boards

Strongly connected nodes