Shanghai glass curtain wall inspection_Curtain wall glass_Glass_Building & building materials_Products

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I
company introduction
MCC Construction Research Institute (Shanghai) Co
, Ltd
will ensure the scientificity and accuracy of the test data with strong technical force, advanced equipment, high-quality personnel and strict management procedures; Serve customers fairly from the standpoint of a third party and ensure the quality of construction projects

For the construction projects with building curtain walls that have been completed and accepted after May 1st, 2008, the testing institutions with special qualification for the testing of building curtain wall projects should be selected for the special testing of building curtain wall projects

Building curtain wall refers to the outer envelope or decorative structure of a building, which is composed of supporting structure system and panel, can have a certain relative displacement capacity relative to the main structure, and does not share the effect of the main structure
Generally, the building curtain wall is composed of panels (glass, aluminum plate, stone plate, ceramic plate, etc
) and supporting structures behind (aluminum beam column, steel structure, glass rib, etc
)

2、 The inspection of building glass curtain wall is divided into:
Laboratory testing and field curtain wall structure reliability testing
1
On site reliability test of curtain wall
1）
Under what circumstances is it necessary to carry out on-site safety inspection on glass curtain walls?
(1) Failure to design, construct and accept the glass curtain wall in accordance with the specifications
(2) The engineering technical data and quality assurance data are incomplete
(3) Before the resumption of the suspended glass curtain wall project
(4) Curtain wall damage occurs after earthquake, fire or strong wind attack
(5) The curtain wall glass is broken, the opening part falls or the component is damaged
(6) If quality problems are found during the use of glass curtain wall, the owner requires evaluation
2) We specialize in various performance tests of the safety and reliability of building curtain walls
The safety performance test and evaluation of glass curtain walls include the following:
(1) Inspection of glass curtain wall materials
(2) Checking calculation of structural bearing capacity of glass curtain wall
(3) Inspection of glass curtain wall structure and structure
2
According to the relevant contents of code for acceptance of construction quality of building energy efficiency projects (GB50411-2007), when the materials and components used in curtain wall energy efficiency projects enter the site, the following properties shall be re inspected, and the re inspection shall be witness sampling for inspection:
(1) Thermal insulation material: thermal conductivity and density

(2) Curtain wall glass: visible light transmittance, heat transfer coefficient, shading coefficient, hollow glass dew point

(3) Thermal insulation profile: tensile strength and shear strength

(4) The air tightness of curtain wall shall meet the grade requirements specified in the design
When the area of the curtain wall is greater than 3000m2 or 50% of the external wall area of the building, materials and accessories shall be extracted on site, and test pieces shall be installed and manufactured in the testing laboratory for air tightness test (the test pieces for air tightness test shall include typical units, typical seams and typical openable parts of the curtain wall)
The test pieces shall be designed according to the construction drawings of the curtain wall project
The design of the test piece shall be agreed and confirmed by the project leader of the architectural design unit and the supervising engineer, and the test results shall meet the grade requirements specified in the design

（5) Four property test of glass curtain wall: the four property test of glass curtain wall includes wind pressure resistance performance test, air tightness performance test, water tightness performance test and in-plane deformation performance test of glass curtain wall

Wind pressure resistance performance test of glass curtain wall: refers to the ability of the curtain wall to maintain normal use function without any damage under the action of vertical wind load

Air tightness test of glass curtain wall: refers to the performance of preventing air from passing through the curtain wall when the open part is closed under the action of wind pressure

Water tightness test of glass curtain wall: water tightness is related to the use function and service life of the curtain wall, and is related to the importance and use function of the building and the local climatic conditions
The 10 minute average wind pressure is used as the basis for grading

In plane deformation performance test of glass curtain wall: it is the follow-up deformation caused by the relative displacement between the floors of the building after the building is subjected to wind load or earthquake

3、 Code for inspection of glass curtain wall
(1) "Glass curtain wall engineering quality inspection standard" JGJ/T139-2001
(2) Technical code for glass curtain wall engineering JGJ102-2003
(3) Code for quality acceptance of Building Decoration Engineering GB 50210-2001
(4) Building curtain wall GB/T21086-2007
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com/
4、 Typical items of glass curtain wall inspection
1
The glass curtain wall of ganghui square, with an area of 62282 ㎡, is a 50 story frame tube structure
The outer facade is mainly glass curtain wall, with a total of 10 detection units
It is located at No
1 Hongqiao Road, Shanghai, and was built in 1999;
2
Shanghai new world glass curtain wall inspection project, 4560 ㎡, 14 storey frame structure, with glass curtain wall, stone and aluminum plate as the external facade, was built in 1995;
3
Shanghai Unicom Daxia glass curtain wall inspection project, with an area of 26288, is a frame structure with 26 floors above the ground and 1 floor underground
The facade is glass curtain wall, stone and aluminum alloy plate, which was built in 1997;
4
The glass curtain wall inspection project of Sinopec Shanghai Gaohua Hotel, covering an area of 1080 square meters, is a 13 story frame structure at No
2998 Pudong Avenue, Shanghai, with partial glass curtain walls on the external facade, which was built in 1995;
5
The glass curtain wall inspection project of broadcasting building is 7974 square meters, with 31 floors of frame shear structure, and the external facade is glass curtain wall and aluminum plate, which was built in 1996;
6
The glass curtain wall of Dongshi building, covering an area of 8043 ㎡, is a 21 storey frame shear structure
The project is located at No
2000 Dongfang Road, Shanghai
The facade is made of glass curtain wall and stone, which was built in 1998

Contacts

Company Name: MCC Construction Research Institute (Shanghai) Co., Ltd

Name:: Ms. Miss Chen

Telephone: 021-51870573

Address

Operational Address: Room 2110, floor 21, Ginza, Fortune International Plaza, No. 43, Guoquan Road, Yangpu District, Shanghai

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