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Point-supported glass curtain wall technical specification

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Point-supported glass curtain wall technical specification

Date:2018-04-13 Author:admin Click:

  First, the construction points

 1. Before installing the point-supported glass curtain wall, it should be checked whether the dimensions of the main structural project of the building comply with the relevant construction and acceptance specifications.

 2. Any sub-project that may cause serious pollution to the point-supported glass curtain wall shall be arranged before the curtain wall construction, otherwise effective protection measures shall be taken.

  3. Special construction organization design should be prepared before installation of point-supported glass curtain wall project.

  4. The materials, parts and structural components of the point-supported curtain wall should meet the design requirements, and the product quality certificate should be submitted when entering the market.

  Second, construction preparation

 1. The structural members, materials and spare parts of the raft shall be stored separately, and the glass slab shall be placed slightly on the A-frame. Protective measures should be taken when stacking outdoors.

  2. Materials, accessories and structural members must not collide during handling and lifting.

  3. When the structural components are assembled and installed in the assembly and installation, the position and size should meet the design requirements.

  4. Structural components should be inspected prior to installation. The structural members shall be straight and straight, without deformation or scratches, and unqualified components shall not be installed.

5. The embedded parts connected to the main structure by the point-supported glass curtain wall shall comply with the relevant provisions of the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102. When the embedded parts are missing or the position deviation is too large, the embedded parts should be re-installed according to the curtain wall design requirements, and the pull-out force test of the rear embedded parts should be carried out.


幕墙系统


 Third, the installation

  1. The construction measurement of the point-supported glass curtain wall shall comply with the relevant provisions of the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102 and the relevant provisions of the current national standard "Engineering Measurement Specification" of GB50026.

  2. Installation of point-supported glass curtain wall support structural members shall meet the following requirements:

  (1) During the installation process of steel structure, the steps of hole making, assembly, welding and painting shall comply with the relevant provisions of GB50205 of "Code for Construction and Acceptance of Steel Structure Engineering";

  (2) Large steel structural members shall be designed as lifting points and shall be tested and suspended;

  (3) The steel structure should be installed in place and adjusted in time, and the concealed project should be declared and accepted;

  (4) The coatings damaged during transportation, storage and installation of the steel structure and the unpainted installation and connection parts shall be recoated according to the relevant provisions of the current national standard “Code for Construction and Acceptance of Steel Structure Engineering”ofGB50205;

  (5) Pre-stress must be applied when installing steel rods and cables. The prestress is measured by a dynamometer and should meet the design requirements. Prestressing devices should be provided.

 3. The installation of the supporting structural members should meet the requirements of the table.

  Items:                                                              Allowable deviation:

 Adjacent two vertical member spacing                                       ±2.5

 Vertical member verticality                                              L/1000或≤5,1-span

 Flatness of the outer surface of adjacent three vertical members            5

  Horizontal spacing of two adjacent claws                                  -3~+1

 Adjacent height difference between two adjacent claws                       1.5

  Claw seat level                                                           2

  The height difference of the inner claw height in the same floor     height is ≤35m 5

  Curtain wall width >35m                                                    7

  Vertical spacing of two adjacent claws                                     ±2

  Single compartment claw diagonal                                           4

  Claw seat flatness                                                         6

  4. Installation of point-supported glass curtain wall claws should meet the following requirements:

  (1) Before installing the claws, the installation position should be determined. The deviation of the claw seat shall comply with the provisions of the above table;

  (2) Three-dimensional adjustment can be performed after the claw member is loaded into the claw seat;

  (3) After the claws are installed, the position of the claws shall be inspected and the inspection results must comply with the above table.

  5. Installation of point-supported glass curtain wall accessories shall comply with the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102.

6. The glass panel installation of the point-supported glass curtain wall shall be in accordance with the current industry standard “Technical Specifications for Glass Curtain Wall Engineering” JGJ102. It shall be initially fixed after the glass panel is installed in place, and then fixed after the position adjustment.

  7. The construction of weather-resistant silicone sealant should meet the following requirements in addition to the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102:

  (1) Before the construction of weather-resistant silicone sealant, the gap of the glass panel should be fully cleaned and the glass surface should be dry;

  (2) The glass on both sides of the gap should be affixed with protective paper tape;

  (3) The weathering silicone sealant should be cured and protected after construction.

8. In the process of installation of point-supported glass curtain wall, in addition to the acceptance of concealed works in accordance with the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102, for insulation and fire protection requirements, installation of insulation materials and fireproof materials shall be applied. Wait for the covert project inspection.

 Fourth, security measures

  1. The safety measures for the installation of point-supported glass curtain wall shall comply with the relevant provisions of the current industry standard "Technical Specifications for Glass Curtain Wall Engineering" JGJ102.

  2. Before the installation of the point-supported glass curtain wall, the safety personnel should be provided for safety.

  3. The warning range should be set during the hoisting and glass installation of the point-supported glass curtain wall project. The hoisting should be carried out and the hoisting should be carried out after the feasibility.

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