"Clean room construction and inspection standards" chapter of Building Structures

   
   "Clean room construction and inspection standards" chapter of Building Structures

Acceptance and regulatory structures of the General Provisions:

  ♦ Before the construction of clean room construction project should be the preparation of construction design or construction programs and cooperate with the clean room construction.
  ♦ The front body structure without acceptance shall follow the construction process.

Structure construction building requirements:

  Cleanroom ♦ Prefabricated concrete structures should be set aside on the prefabricated according to design drawings, holes.
  ♦ there is pressure, anti-leakage requirements for concrete construction of clean room design requirements should use impermeable concrete, and should develop procedures mix, impermeability test according to the relevant requirements of the test piece to do first, after pouring should be layered tamping and strengthen the conservation management.
  ♦ situ concrete shear wall template should not be used in the clean area of the patchwork of more combined steel formwork, should adopt the large-sized hardwood surface layer thickness type plywood.
  ♦ for large clean space structure template used should partition is the control point, multi-level review. Building templates should prevent moisture bagging. Shimizu fine should adopt concrete construction, should vary with the trowel pound, one reaches the architectural design elevation. Sealants and caulking template should be fixed at the same time, it can not be missed.
  ♦ masonry construction quality control level should meet the current national standard "Masonry Construction Quality Acceptance" A-level requirements GB50203 section 3.0.10 article.
  ♦ segmentation cleanroom associated controlled environments of space becomes independent seal the top of the infill walls, wall (board) with the beam, the gap should be filled with dense board at the end, and should be sealed.
  ♦ tall steel construction inside the clean room should be strictly control the size of the deviation member, the design does not require the left seam nodes should be after acceptance steel body with a sealing material blocking strict. Corrosion of steel surfaces coated with fire retardant paint not leak.
  ♦ retrofitting of existing buildings when the clean room, checking the structural response of the original building, and should be carefully examined the original structure, appearing in the original structure of the cracks or gaps shall take measures to reinforce or sealed.

Sub-acceptance of the building structure

  ♦ sub-structure construction should be carried out the construction process of order entry and acceptance.
  ♦ structure shall, after construction of foundation, the main structure, secondary structure is completed, be itemized acceptance.
  ♦ Sub-structure construction inspection should include the following main items:
  a. structural concrete surface should be smooth, no cracks, no pockmarked face, no fade and no play sand.
     Inspection Methods:
     Number of test: full inspection
  b. infilled should be closely in contact with the surrounding structures.
     Inspection Methods:
     Number of test: full inspection
  c. exposed surface area in a clean anti-corrosion coating of steel components should be coating adhesion testing.
     Inspection method: GB1720 or "paints and varnishes, Qin film draw equal skill test" GB9286 accordance with current national standard "film adhesion assays."
     Number of tests: the number of checks by means of 2%, and should not be less than three, each measuring 3.
  d. exposed in a clean area of fireproof coatings should sampling bonding strength, compressive strength, and shall comply with the relevant fireproof coatings applied technology procedures.
     Inspection method: Check the review report or sampling tests according to the current national standard "fireproof coating material properties of building elements method" GB9978 requirements.
     Number of Inspection: Check all test reports or spot check of not less than 2 times.


The above is summarized in Shandong Ed purification technology "clean room construction and acceptance of" the building structure pieces of content, want to know the problems of other aspects related to the clean room can consult: 400-0633-028