Standard Operating Procedures

Transcription

1 Document 15 Standard Operating Procedures Subject: SOP No.: Standard Procedure for Construction Services/4/d/02/1 Effective Date: 8 July 2009 Total pages: 9 1. Purpose Standardize construction inspection procedures for better quality control. 2. Reference Items No.8, No.15, and checking points mentioned in No.11 from the Quality Control and Management for Construction guidelines established by the Public Construction Commission of the Republic of China (Taiwan). 3. Application Applicable to all major construction, structural, and interior design projects carried out under contract at all Center locations. Not applicable to small, simple repair jobs 4. Specification In accordance with the standard construction specifications and general guidelines of construction inspection on architectural works developed by the Public Construction Commission of the Republic of China (Taiwan), and with contractual requirements for each individual construction project. 5. Definition 5.1 To ensure the items used during a construction project meet the specifications, and to ensure a construction project has been completed properly and in accordance with contractual requirements. s are carried out by checking, measuring, conducting a quantity survey, or visual inspection. 5.2 Checking Points Points during a project when inspection is required and approval is necessary before proceeding to the next construction stage. The checking points are set by the Architect, and should include all common stages of a project, such as materials delivery, setting layout, and installation. 1

2 6. Procedure and explanation 6.1 Operation procedures Arrival of Materials Upon the arrival of materials, the contractor is responsible for primary quality control. A self-inspection should be carried out according to the quality control plan based on the above-referenced quality control guidelines. After the self-inspection is completed, the contractor must inform the Architect s supervisor and the Center s technician, so that they may carry out a joint examination of the materials. The inspection criteria must follow the contractual drawings, standard specifications, and general guidelines for construction inspection. If the materials do not meet specifications, the Center s technician will work with the Architect s supervisor to immediately issue a Non-Conformity Report (NCR; Attachment 1) to the contractor. The contractor must then change the materials immediately upon receiving the NCR, and redo the primary self-inspection. After the self-inspection, the contractor must contact the Architect s supervisor and the Center s technician to request that the NCR be closed before the project moves to the next phase of construction Setting Layout After the materials are confirmed and accepted, the contractor can proceed in setting the layout. The contractor must perform a self-inspection of the layout, and then inform the Architect s supervisor and the Center s technician to inspect the layout work. If the layout work is unacceptable, the Center s technician will work with the Architect s supervisor to immediately issue an NCR to the contractor. Upon receiving the NCR, the contractor must immediately reset the layout and redo the primary self-inspection. After the self-inspection, the contractor must contact the Architect s supervisor and the Center s technician to request that the NCR be closed before the project moves to the next phase of construction Installation and Assembly After the setting layout work is confirmed and accepted, the contractor can proceed to the installation or assembly work. The contractor must perform a self-inspection of this work, and then inform the Architect s supervisor and the Center s technician to inspect the installation or assembly. If the installation or assembly is unacceptable, the Center s technician will work with the Architect s supervisor to immediately issue an NCR to the contractor. Upon receiving the NCR, the contractor must immediately reinstall or reassemble the work, and redo the primary self-inspection. After the self-inspection, the contractor must contact the Architect s supervisor and the Center s technician to request that the NCR be closed. At the completion of this phase, the Architect s supervisor and the Center s technician must both sign the quality control card for the completion of a specific working item. The contractor must attach the co-signed quality control card with the payment request for the interim payment approval. 6.2 Key points for inspection Priority of inspection checking points 2

3 Materials inspection a. Approve qualification data of subcontractor and material supplier. (Refer to the contractual drawings or specification requirement.) b. Review and inspect the material sample. (Refer to the contractual drawings or specification requirement.) c. Review and approve the shop drawings. (Confirm the construction drawings have been approved by the Architect and the Center.) d. Take sampling for material test after the arrival of materials. e. Pre-assemble the materials on-site if required on setting layout a. Follow the survey plan in the method statement for detail inspection. (Confirm the method statement has been approved by the Architect and the Center.) on installation or assembly a. Accessories of supports, connections, and joints b. Finish surface c. Embedment or openings d. Trim treatment e. Location and level f. Verticality and horizontality g. Cleaning and protection Please refer to the construction inspection flowchart (Figure 1) for the procedure. 7. Templates of form format 7.1 Non-Conformity Report (NCR): Attachment Quality Control Card: Attachments 2-1 to 2-4 (Format developed by the contractor s quality control staff according to the various construction items in contract, and approved by the Architect and the Center.) 3

4 Construction Flowchart Figure 1 Arrival of Materials NCR Notification Contractor s primary self-inspection Architect s supervisor / Center s technician Fail Materials Pass NCR Closeout after Improvement Setting Layout Installation & Assembly NCR Closeout after Improvement Contractor s primary self-inspection Pass Architect s supervisor / Center s technician Layout Fail NCR Notification NCR Notification Contractor s primary self-inspection Architect s supervisor / Center s technician NCR Closeout after Improvement Fail Installation Pass Co-sign on Quality Control Card Payment Request Center s technicians should implement the inspection based on the checking points in the flowchart. All NCRs should be issued by the Center and the Architect. TSO must record the NCR serial numbers and file copies of the NCR when they are closed out. 4

5 Attachment 1 Non-Conformity Report (NCR) on Construction Works Construction No. oo AVRDC ooo Contractor xx Construction Company xx Architect or AVRDC Date & No. Item & Site Statement on non-qualification (including photos) NCR No. Improvement Measures (including photos) Confirmation of Improvement Architect s : Center s Technician: 5

6 Attachment 2-1 Rebar Reinforcement Quality Control Card Contract No. Contractor: Working Item No. Construction site: Project name: Drawing No. Version: Architect: Date: Y M D Item Contents Specification No. or Reference Source Contractor s Quality Controller Architect s Physics, chemistry, and radiation Before Construction Rebar coupler s tension and sliding Location and height layout Rebar coupler s twist Under Construction Dimension, quantity, location and overlap Rebar spacing & protection Extension length & bending radius Vertical Dimension, quantity, location and overlap for the reserved rebar Dimension, quantity, location and overlap for the extra rebar Embedded parts results and comments: Rebar grade and quantity detail (Ton) SD280 SD280W SD420 SD420W (1) Fill out the specification no. or reference resource according to the contractual requirement. (2) Attach the contractor s self-inspection report to this form. (3) Write down the result with date and signature in sequence by Architect s supervisor. (4) Submit the Quality Control Card with 3 copies: one for the contractor s file, one for the Architect, and one for the payment request use. Contractor: Architect s : Center s Technician: 6

7 Attachment 2-2 Formwork Quality Control Card Contract No. Contractor: Working Item No. Construction site: Project name: Drawing No. Version: Architect: Date: Y M D Item Contents Specification No. or Reference Source Contractor s Quality Controller Architect s Setting layout Smooth on panel surface and if overused Cleaning and releasing agent application Construction Panel grade Working frame setup Panel size Support and accessories Expansion and construction joints Embedment Pre-openings and reinforcing supports Verticality and elevation control Thickness of protection results and comments: (1) Fill out the specification no. or reference resource according to the contractual requirement. (2) Attach the contractor s self-inspection report to this form. (3) Write down the result with date and signature in sequence by Architect s supervisor. (4) Submit the Quality Control Card with 3 copies: one for the contractor s file, one for the Architect and one for the payment request use. Contractor: Architect s : Center s Technician: 7

8 Attachment 2-3 Concrete Quality Control Card Contract No. Contractor: Working Item No. Construction site: Project name: Drawing No. Version: Architect: Date: Y M D Item Contents Vibrator s quantity and specification Vibrator s location and distance Average time of vibration Under Air bubble going up or not Construction Sound change or not during vibration Grout overflow or not between panels Specification No. or Reference Source Contractor s Quality Controller Architect s After Smooth finish surface or not Construction Curing results and comments: Quantity details: Unit: M 3 Cement type: TYPE I; TYPE II N/mm 2 N/mm 2 N/mm 2 N/mm 2 N/mm 2 (1) Fill out the specification no. or reference resource according to the contractual requirement. (2) Attach the contractor s self-inspection report to this form. (3) Write down the result with date and signature in sequence by Architect s supervisor. (4) Submit the Quality Control Card with 3 copies: one for the contractor s file, one for the Architect and one for the payment request use. Contractor: Architect s : Center s Technician: 8

9 Attachment 2-4 Interior Decoration Quality Control Card (Item ) Contract No. Contractor: Working Item No. Construction site: Project name: Drawing No. Version: Architect: Date: Y M D (1) Item Contents Qualification data of materials supplier and subcontractor Sample of material Specification No. or Reference Source Contractor s Quality Controller Architect s Materials Approval of Shop Drawings Material sampling and test Pre-assembly (2) Location and elevation layout Support, joint, and connection accessory Finish surface Construction Openings and embedment Trim treatment Verticality and horizontality Cleaning and protection results & comments: (1) Fill out the specification no. or reference resource according to the contractual requirement. (2) Attach the contractor s self-inspection report to this form. (3) Write down the result with date and signature in sequence by Architect s supervisor. (4) Submit the Quality Control Card with 3 copies: one for the contractor s file, one for the Architect and one for the payment request use. Contractor: Architect s : Center s Technician: 9