First, the construction points 1, before the installation of point-supported glass curtain wall, whether the size of the main structural engineering of the building meets the relevant structure construction and acceptance specifications for review. 2. All sub-projects that may cause serious pollution to point-supported glass curtain walls shall be arranged before the construction of the curtain wall; otherwise, effective protective measures shall be taken.
3. Before the installation of point-supported glass curtain wall projects, special construction organization designs shall be prepared.
4. The materials, spare parts and structural components of point-supported curtain walls shall meet the design requirements, and the product quality certificate shall be submitted when entering the curtain wall.
Second, the construction preparation 1, into the concrete structural components, materials, accessories should be classified storage, glass plates should be placed slightly tilted upright on the A-frame. Protective measures should be taken when stacking outdoors.
2. Materials, spare parts and structural members must not collide during handling and lifting.
3, structural components are assembled and installed in the attachment of accessories such as auxiliary processing, the location, size should meet the design requirements.
4, structural components should be checked before installation. The structural members shall be straight and regular and shall not be deformed or scratched. Unqualified components shall not be installed.
5. The embedded parts connected with the point-supported glass curtain wall and the main structure shall comply with the relevant provisions of the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102. When the embedded part is missing or the position deviation is too large, the embedded part shall be added again according to the design requirements of the curtain wall, and the pull-out force test of the post-buried part shall be conducted.
Third, the installation 1, point-supported glass curtain wall construction survey should be consistent with the current industry standard "glass curtain wall engineering specifications" JGJ102 relevant provisions and the current national standard "project measurement specifications" GB50026 relevant provisions.
2. The installation of point-supported glass curtain wall support structure components shall meet the following requirements:
(1) During the installation of steel structures, the processes of hole making, assembly, welding and painting shall comply with the relevant provisions of GB50205 "Code for the Construction and Acceptance of Steel Structure Engineering";
(2) Large steel structural members should be designed as hanging points and should be tested;
(3) After the steel structure is installed in place and adjusted, it shall be tightened in time, and the acceptance of the concealed project shall be declared;
(4) Coatings damaged during transportation, storage and installation of steel structures and unpainted installation and connection sites shall be coated in accordance with the relevant provisions of the current national standard "Code for Construction and Acceptance of Steel Structure Engineering" GB50205;
(5) Steel rods and cables must be prestressed during installation. The prestress is measured with a dynamometer and should meet the design requirements. Pre-stress adjustment devices should be set.
3, the installation of support structure components should meet the following requirements:
Name Allowance Deviation of adjacent two vertical members: ±2.5
Vertical member verticality: L/1000 or ≤5,1-span External surface flatness of adjacent three vertical members: 5
Adjacent two claws horizontal spacing: -3 ~ +1
Adjacent two-jaw seat level difference: 1.5
The claw seat level: 2
The same height of the inner claw seat height difference curtain wall width: ≤35m5
Curtain wall width: >35m7
Adjacent two claws vertical spacing: 4
The seat surface flatness: 6
4. The installation of claw-type glass curtain wall claws shall meet the following requirements:
(1) The claws should be accurately positioned before installation. The deviation of the claw seat should meet the requirements in the above table;
(2) Three-dimensional adjustments can be made after the claw member is loaded in the claw holder;
(3) After the claws have been installed, check the position of the claws. The inspection results must comply with the regulations in the above table.
5. The installation of point-supported glass curtain wall attachments shall comply with the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102.
6. The installation of glass panels for point-supported glass curtain walls shall, in addition to the regulations of relevant departments of the current industry standard “Technical Specifications for Glass Curtain Wall Engineering†JGJ102, be fixed after the glass panels are in place, and then be fixed after position adjustment. .
7, in addition to the construction of weather-resistant silicone sealant should comply with the current industry standard "Glass Curtain Wall Engineering Specifications" JGJ102, but also should meet the following requirements:
(1) Before the construction of the weather-resistant silicone sealant, the gap of the glass panel should be fully cleaned and the glass surface should be kept dry;
(2) The glass on both sides of the gap shall be covered with protective paper tape;
(3) Weatherproof silicone sealant should be maintained and protected after construction.
8. In the installation process of point-supported glass curtain walls, in addition to the acceptance of concealed projects in accordance with the relevant provisions of the current industry standard "Technical Specifications for Glass Curtain Wall Projects" JGJ102, thermal insulation materials and fireproof materials shall be installed for fireproofing and fireproofing requirements. Such as the declaration of concealed engineering inspection.
4. Safety Measures 1. The safety measures for the installation of point-supported glass curtain walls shall comply with the relevant provisions of the current industry standard, Technical Specifications for Glass Curtain Wall Engineering, JGJ102.
2. Before the installation of point-supported glass curtain walls, the operator shall handle safety technical disclosure.
3. The vigilance range shall be set during the lifting and glass installation of the point-supported glass curtain wall project.
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