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GB 50720-2011: Technical code for fire safety of construction site
GB 50720-2011
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
UDC
P GB 50720-2011
Technical Code for Fire Safety of Construction Site
ISSUED ON: JUNE 6, 2011
IMPLEMENTED ON: AUGUST 1, 2011
Jointly issued by: Ministry of Housing and Urban-Rural Development of
the People's Republic of China;
General Administration of Quality Supervision,
Inspection and Quarantine of the People's Republic of
China.
Table of Contents
Foreword ... 4
1 General Provisions ... 7
2 Terms ... 8
3 General Plan Layout ... 9
4 Fire Protection of Construction Site ... 13
5 Temporary Fire Control Facilities ... 17
6 Fire Safety Management ... 24
Explanation of Wording in This Code ... 31
List of Quoted Standards ... 32
1 General Provisions
1.0.1 This code is formulated with a view to preventing fire accidents on
construction site, reducing fire hazards and protecting personal and property
safety.
1.0.2 This code is applicable to the fire protection on various newly-built, rebuild
and expanded construction sites.
1.0.3 Fire protection must conform to relevant state policies and reliably fire
precaution measures, on a basis of self-prevention and self-rescue, shall be
taken for different characteristics of fire accidents on construction site to
achieve safe, reliability, economy, rationality and convenience.
1.0.4 Fire protection on construction site shall not only conform to this code but
also comply with those in the current relevant ones of the nation.
2 Terms
2.0.1 Temporary construction
It refers to various non-permanent buildings built at the construction site and
serving for the construction, including office buildings, dormitories, kitchen
rooms, canteens, boiler rooms, generator rooms, power distribution rooms,
warehouse, etc.
2.0.2 Temporary facility
It refers to various non-permanent facilities built at the construction site and
serving for construction, including fences, gates, temporary roads, materials
storage yard and processing yard, fixed fire work field, work shed, machinery
shed, reservoir as well as temporary water supply and drainage, power supply
and heating pipelines.
2.0.3 Temporary fire control facility
It refers to various fire control facilities arranged at construction site and used
for extinguishing fire accidents and guiding safe evacuation of builders,
including fire extinguishers, temporary fire water supply system, fire emergency
lighting, evacuation signs, temporary evacuation routes.
2.0.4 Temporary evacuation route
It refers to the route for personnel safely evacuate the danger area and arrive
at safe place or safe zone when there is fire or other accidents on the
construction site.
2.0.5 Temporary fire-fighting and rescue site
It refers to the site used for fire-fighting and rescue by the personnel and
equipment on construction site.
3 General Plan Layout
3.1 General Requirement
3.1.1 The layout of temporary construction and temporary facilities shall meet
the requirements of on-site fire protection, fire extinction and safe evacuation
of personnel.
3.1.2 The following temporary construction and temporary facilities shall be
included in the general plan layout of construction site:
1 The exit/entrance, fence, enclosing and blocking.
2 Temporary road on site.
3 The laying or erection direction and height of supply pipe network or
piping and distribution lines.
4 Office buildings, dormitories, generator rooms, power transformation and
distribution rooms, combustible material warehouses, inflammable and explosive
dangerous goods warehouse, combustible material storage yard and
processing yard, fixed fire work field, etc. on the construction site.
5 Temporary fire lane, fire-fighting and rescue site and fire water sources.
3.1.3 The arrangement of the exit and entrance of construction site shall meet
the requirements of fire vehicles and in different directions with a quantity of no
less than 2. If only one exit and entrance is arranged according to the condition,
ring road shall be arranged on the construction site to allow the pass of fire
vehicles.
3.1.4 The temporary functional zone for office, living, production and material
storage should be relatively independent; the fire separation shall conform to
provisions living Articles 3.2.1 and 3.2.2 in this code.
3.1.5 The fixed fire work field shall be arranged on the windward side with
minimum rate all year around of combustible material storage yard and
processing yard and inflammable and explosive dangerous goods warehouse;
should be arranged on the windward side with minimum rate all year around of
temporary office buildings, dormitories, combustible material warehouses and
buildings during construction.
3.1.6 Inflammable and explosive dangerous goods warehouse shall be far away
from fire working, personnel-intensive and buildings relatively concentrated
areas.
4 Fire Protection of Construction Site
4.1 General Requirement
4.1.1 Fire protection measures such as reliable fire separation and safe
evacuation shall be taken for temporary construction and buildings during
construction.
4.1.2 The fire protection design of temporary construction shall be determined
according to the service purpose and fire hazard.
4.1.3 The fire protection design of buildings during construction shall be
determined according to the construction property, building height, building size
and structural features.
4.2 Fire Protection for Temporary Construction
4.2.1 Fire protection design of dormitories and office buildings shall meet the
following requirements:
1 The flammability level of building member is Class A. Where metal
sandwich panels are adopted, the flammability level of the core material
shall be Class A.
2 The floor number of buildings shall not exceed 3 and the building area of
each floor shall not be greater than 300 m2.
3 Where the floor number is 3 or the building area of each floor is larger
than 200 m2, at least 2 emergency staircases shall be arranged and the
maximum distance from the room emergency door to the emergency staircase
shall not be larger than 25 m.
4 Where the room is arranged on a single side, the clear width of the
evacuation walkway shall not be less than 1.0 m; where the room is arranged
on double sides, the clear width of the evacuation walkway shall not be less
than 1.5 m.
5 The clear width of the emergency staircase shall not be less than the clear
width of the evacuation walkway.
6 The building area of dormitory rooms shall not be larger than 30 m2 and
the building area of other rooms should not be larger than 100 m2.
7 The distance from any point of the room to the nearest emergency door
shall not be larger than 15 m and the clear width of the room door shall not be
less than 0.8 m; where the building area of the room exceeds 50 m2, the clear
completion of buildings during construction are used as temporary evacuation
route, the clear width should not be less than 1.0 m; for the access ladder used
for evacuation and the temporary evacuation route arranged on scaffold, the
clear width shall not be less than 0.6 m.
3 Where the temporary evacuation route is a ramp and the gradient is larger
than 25°, staircase, steps or anti-slip strips shall be constructed.
4 Access ladder should not be adopted for temporary evacuation route.
Where the access ladder is required, reliable fixation measures shall be taken.
5 If the side of the tempora...