GB 50037-2013Code for design of ground surface and floor of building (English PDF)

3.1 Basic Requirement... 4

3.2 Common Building Ground... 8

3.3 Clean, Dust-proof and Antibacterial Ground ... 9

3.4 Anti-static Ground ... 10

3.5 Wear Resistant and Collision Resistant Ground ... 10

3.6 Anti-corrosion Ground ...11

3.7 Anti Oil Seepage Ground ... 14

3.8 Other Ground ... 14

4.1 Ground Cushion Type Selection ... 18

4.2 Requirement of Ground Cushion ... 18

1.0.1 This code is prepared in order to make building ground up to building function and

use requirements, ensure advanced technology, economic feasibility, safety,

environmental protection and ensure building quality.

1.0.2 This code is applicable to design of underlying ground and floor ground and aprolls,

open ditches, steps, stairs and ramps, etc.

1.0.3 In building ground design, it is required to fully use local materials and recoverable

resources, adapt to local conditions and make a difference according to engineering

features and working conditions.

1.0.4 Building ground design, except conformance to this code, shall also conform to

current relevant national standards.

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2.0.1 Building Ground

The general name of underlying ground and floor ground of building.

2.0.2 Surface Course

The surface course of building ground that directly suffers physics and chemical

actions.

2.0.3 Combined Course

The connection layer between surface course and subjacent structural course.

2.0.4 Troweling Course

The structural layer that plays a role in troweling cushion, floor or filler course.

2.0.5 Isolating Course

The structural layer that prevents liquids, or water and damp on the building ground from

penetrating the ground.

2.0.6 Damp Course

The Structural layer that prevents underground damp from penetrating the ground.

2.0.7 Filler Course

The structural layer that plays a role in sound isolation, heat preservation, slope making or

hidden laying of pipelines, etc.

2.0.8 Under Layer

The structural layer set on the building foundation to bear and transfer upper load.

2.0.9 Foundation

The soil layer withstanding the load of underlying ground.

2.0 10 Shrinkage Crack

Shrinkage crack set to prevent concrete cushion from zigzag cracks when temperature

decreases.

2.0 11 Stretching Crack

Expansion joint set to prevent concrete cushion from crushing or hogging around

shrinkage crack when temperature rises.

2.0 12 Lengthwise Shrinkage Crack

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3.1 Basic Requirement

3.1.1 Type of building ground shall be selected according to building function, usage

requirement, engineering characteristics, technical and economic conditions based on

synthetic technical and economical comparison.

3.1.2 Marble, granite and other natural stones used for building ground shall comply with

the provisions concerning limit of hazardous substances under current national standard

Limit of Radionuclides in Building Materials GB 6566.

3.1.3 Adhesive, asphalt cement, coatings and other materials shall comply with the

provisions of current national standard Code for Indoor Environmental Pollution Control of

Civil Building Engineering GB 50325.

3.1.4 For public buildings, the building ground constructed for human activity shall be the

disabled-friendly and other grounds shall comply with relevant provisions of current

national standard Codes for Accessibility Design GB50763.

3.1.5 The level of underlying ground of a building shall be 150mm higher than outdoor

ground. And the indoor and outdoor level difference...