GB/T 15227-2007 English PDF (GBT15227-2007)

Delivery: 3 seconds. Download true-PDF + Invoice.Newer version: (Replacing this standard) GB/T 15227-2019
Get QUOTATION in 1-minute: Click GB/T 15227-2007
Historical versions: GB/T 15227-2007
Preview True-PDF (Reload/Scroll if blank)

GB/T 15227-2007: Test method of air permeability, water tightness, wind load resistance performance for curtain walls
GB/T 15227-2007
GB
NATIONAL STANDARD OF THE
PEOPLE’S REPUBLIC OF CHINA
ICS 91.060.10
P 32
Replacing GB/T 15226-1994, GB/T 15227-1994, GB/T 15228-1994
Test method of air permeability, watertightness,
wind load resistance performance for curtain walls
ISSUED ON. SEPTEMBER 11, 2007
IMPLEMENTED ON. FEBRUARY 01, 2008
Issued by. General Administration of Quality Supervision, Inspection and
Quarantine of the People's Republic of China;
Standardization Administration of the People's Republic of
China.
Table of Contents
Foreword ... 3
1 Scope ... 6
2 Normative references ... 6
3 Terms and definitions ... 6
4 Test ... 9
5 Test report ... 30
Annex A (informative) Maximum allowable relative frontal deflection f0 of main
components of the curtain wall specimen under the wind load standard value
... 32
Annex B (informative) Examples of layout of displacement meters for typical
curtain walls ... 33
Annex C (informative) Test report on air permeability, watertightness and wind
load resistance performance of curtain walls ... 37
Foreword
This Standard replaces GB/T 15226-1994 “Test method of air permeability
performance for building curtain walls”, GB/T 15227-1994 “Test method of
deformation under wind load for building curtain walls” and GB/T 15228-1994
“Test method of water penetration performance for building curtain walls”.
- The main revisions of this Standard to GB/T 15226-1994 “Test method of
air permeability performance for building curtain walls” are as follows.
1. The “air leakage” performance in the standard name is changed to “air
permeability” performance;
2. ADD the content of testing the volume of air flow under negative pressure
difference;
3. MAKE specific requirements for the measurement accuracy of the main
components and the main instruments of the test apparatus;
4. REDUCE the number of pressurization levels during the test;
5. ADD the test method for the overall air permeability performance of
curtain walls;
6. ADD the measurement method for the volume of extraneous leakage
and propose the limits of the volume of extraneous leakage.
7. ADD the calculation method for the volume of air flow through a unit area.
- The main revisions of this Standard to GB/T 15227-1994 “Test method of
deformation under wind load for building curtain walls” are as follows.
1. The “rainwater leakage” performance in the standard name is changed
to “watertightness” performance;
2. MAKE specific requirements for the measurement accuracy of the main
components and the main instruments of the test apparatus;
3. ADD the requirements for the pressure raising speed;
4. USE 1/4 test pressure AS the amplitude of fluctuating pressurization;
5. SPECIFY the scope of use of fluctuating pressurization;
6. PROPOSE the specifications for the engineering testing method for
watertightness performance.
Test method of air permeability, watertightness, wind
load resistance performance for curtain walls
1 Scope
This Standard specifies the terms and definitions, test and test reports for the
test method of air permeability, watertightness and wind load resistance
performance of curtain walls.
This Standard applies to the test of air permeability, watertightness and wind
load resistance performance of curtain walls. The test object is limited to the
curtain wall specimen itself and does not involve the joints between the curtain
wall and other structures.
2 Normative references
The following documents contain the provisions which, through reference in this
Standard, become the provisions of this Standard. For dated references, their
subsequent amendments (excluding corrigendum) or revisions do not apply to
this Standard. However, the parties who enter into agreement based on this
Standard are encouraged to investigate whether the latest versions of these
documents are applicable. For undated reference documents, the latest
versions apply to this Standard.
GB/T 21086 Curtain wall for building
GB 50178 Standard of climatic regionalization for architecture
3 Terms and definitions
For the purpose of this Standard, the following terms and definitions apply.
3.1
air permeability performance
Ability of the openable part and the overall curtain wall to prevent the air from
permeating, when the openable part of the curtain wall is in the closed state.
3.1.1
Area of the plane or curved surface enclosed by the joint between the perimeter
and the tank of the curtain wall specimen. It is based on the measured value of
the indoor surface.
3.1.8
volume of air flow through a unit area
Under the standard condition, the volume of air flow through a unit area of the
curtain wall specimen per unit time.
3.2
watertightness performance
Ability to prevent the leakage of rainwater under the action of wind and rain,
when the openable part of the curtain wall is in the closed state.
3.2.1
serious water leakage
Phenomenon that rainwater continuously or repeatedly permeates into the
indoor side of the specimen from the outdoor side of the curtain wall specimen,
and splashes or flows out of the specimen interface.
3.2.2
pressure difference under serious water leakage
Pressure difference when the curtain wall specimen has serious water leakage.
3.2.3
volume of water spray
Volume of water sprayed onto a unit area of the curtain wall specimen surface.
3.3
wind load resistance performance
When the openable part of the curtain wall is in the closed state and under the
action of wind load, ability of the curtain wall that the deformation does not
exceed the allowable value and there is not functional disorder such as
structural damage (e.g.. cracks, panel damage, local yielding, bonding failure,
etc.) and loosening of hardware, difficulty in opening,
g - specimen;
h - installation crossbar.
Figure 1 -- Schematic diagram of the test apparatus for air permeability
performance
4.1.2.2 The dimension of the opening of the pressure tank shall be sufficient to
meet the requirements for the installation of the specimen. The tank shall be
able to withstand the pressure difference that may occur during the test.
4.1.2.3 The installation crossbar that supports the curtain wall shall have
sufficient rigidity and shall be fixed on a supporting structure with sufficient
rigidity.
4.1.2.4 The air supply equipment shall be able to apply positive and negative
two-way pressure differences and shall be able to reach the maximum pressure
difference required for the test. The pressure control device shall be able to
regulate a stable pressure difference.
4.1.2.5 The two measuring points of the differential pressure gauge shall be
arranged close to each other on both sides of the specimen, and the accuracy
of the differential pressure gauge shall reach 2 % of the ostensive value.
4.1.2.6 The measurement error of the air flow meter shall not exceed 5 % of
the ostensive value.
4.1.3 Requirements for specimens
4.1.3.1 The specifications, model numbers, materials, etc. of the specimen shall
be the same as those of the diagram provided by the manufacturer. The
installation of specimens shall meet the design requirements. It shall not add
any special attachments or take other measures. The specimens shall be dry.
4.1.3.2 The width of the specimen shall include at least one vertical member
subjected to the design load. The height of the specimen shall include at leas...