Reinforced concrete construction for documents submitted after building confirmation and each inspection

• Scale of inspection conducted by the person in charge of structure: Buildings over the second floor or more or more than 200m2 have not been certified.
• For intermediate inspection and completion inspection of wooden structuresIn charge of guidanceIt's the page.

• Up to 2 weeks before the start of construction
• Up to one week before the start of construction
• Intermediate inspection process
• How to reserve an intermediate inspection
• Submission of an interim inspection application
• Items to be attached to the application form
• Documents to be submitted at the time of interim inspection
• Points of Intermediate Inspection

• If you pass the intermediate inspection
• If you do not pass the intermediate inspection
• Issuance of intermediate inspection pass certificate
• Up to one week prior to completion inspection
• Submission of completed inspection application
• Documents to be submitted at the time of completion inspection
• Reporting test results of building materials

Confirmation application
Issuance of Confirmed Certificate
<Up to 2 weeks before the start of construction>
At least two weeks before the start of the construction, the builder shall submit a “Notification of Appointment of Construction Supervisor and Construction Worker” to a copy of a document certifying that the construction has been supervised and undertaken (eg, construction supervision and construction work) Please attach and submit a contract conclusion certificate).
However, in the case of directly managed construction by the builder, it is not necessary to submit attached documents.
<Up to one week before the start of construction>
When the builder performs the following construction, the construction supervisor or construction builder of the construction concerned must submit the following construction plan (Yokohama City Building Standard Law Enforcement Detailed Regulations Article 17-3 (Hereinafter referred to as "Details").

• Root cutting work with a height of more than 3m
  Outline of construction plan for mountain retaining work
• Root cutting work with a height of more than 5m
  Construction plan for mountain retaining work
  ※For details on the report on mountain retaining workAbout report about mountain retaining constructionPlease refer to the following page.

• Construction of buildings with a floor area of 3rd floor or more or a floor area of 500m2 or more
  Concrete construction work plan

Start of construction
<Intermediate inspection process>
The RC construction performs an intermediate inspection twice when the foundation reinforcement is completed and the second floor reinforcement is completed from the bottom floor. Please refer to the page on the intermediate inspection process for the timing of the intermediate inspection.
<Reservation method for intermediate inspection>
Please make a reservation by phone 10 to 14 days before the intermediate inspection.
Building Guidance Division Structure Manager - TEL: 045-671-4536

• Date of inspection

Please note that if the inspection is crowded, you may not be able to make a reservation on the desired inspection date.

End of a specific process

Application for intermediate inspection
<Submission of an interim inspection application>
Please submit an interim inspection application (from 1 to 4) from 4 days before the scheduled inspection date to the day before.
On the four pages, entry can be omitted by submitting a report (construction supervision / construction status) based on Article 12, Paragraph 5 of the Building Standards Law.
A fee is required for the inspection.
For details on how to calculate fees, please refer to the page on how to calculate intermediate inspection fees.
<Attached to the application form>

• Site guide map
• Underground map of the part to be inspected (If the construction is divided, specify the inspection range.)

Intermediate inspection
<Documents to be submitted at the time of interim inspection>

• When foundation reinforcement is completed
  • Report (Construction supervision and construction work) based on Article 12, Paragraph 5 of the Building Standards Law-Basic process-
  • Pile construction results report
• When the second floor slab reinforcement is completed from the bottom floor
  • Report (Construction supervision and construction work) based on Article 12, Paragraph 5 of the Building Standards Act-Reinforced Concrete-
  • Concrete Construction Results Report(Limited to construction of buildings with a floor area of 3rd floor or more or a floor area of 500m2 or more.)
    ※Reports up to the relevant inspection portion

<Points of Interim Inspection>

• When foundation reinforcement is completed
  • Sites and Buildings
    The length of the site in contact with the road
    Placement of buildings
    Retreat distance from the road
  • Securing reinforcing bars
    Lower part of the beam
    Base top and bottom edge
  • Position of Reinforcing bar
    Spacing of main line
    Position of medium suspension reinforcing bar
  • Human hole, penetration sleeve
    Positions in vertical and horizontal directions
    Securing the appearance of star wrap around the sleeves
• When the second floor slab reinforcement is completed from the bottom floor
  • Check the number of main lines, diameter, and placement direction of the pillar.
  • Check the diameter and pitch of the band at the entrance of the pillar beam.
  • Check the status of the beam main muscles, streak muscles, abdominal muscles, and width stop muscles.
  • Check the fixation method and length of the beam main muscles.
  • Check the position of the hanging streaks in the main beam.
  • Check the position and method of the beam joint (in the case of compression, test results).
  • Check the position of the beam penetration hole and the enforcement status of the reinforcing bars.
  • Check the main slab direction, pitch, diameter, and thickness of the slab.
  • Check that the pipes (CD pipes, etc.) in the slab concrete are not too concentrated.
  • Check how to fix the streaks on the wall and length.

<If you pass the intermediate inspection>
If you pass the intermediate inspection, you can proceed to the subsequent process.
However, this cannot be done only after receiving the intermediate inspection pass certificate. (Article 7-3 of the Building Standards Act)
In Yokohama City, a sticker (see the figure below) for which the intermediate inspection has been carried out is attached to the building confirmation display board at the end of the inspection.

<If the intermediate inspection is not passed>
If you do not pass the intermediate inspection, you will not be able to proceed to the subsequent process.
It is necessary to take necessary measures such as re-inspection and reporting, and pass the intermediate inspection.

Issuance of intermediate inspection pass certificate
<Issuance of intermediate inspection pass certificate>
An intermediate inspection pass certificate will be issued by the person in charge of the structure.

Start of construction after a specific process
<Up to one week before completion inspection>
The completion inspection will be conducted by the instructor.
Please make a reservation by phone 10 to 14 days before the completion inspection.
Building Guidance Division Guidance Section - TEL: 045-671-4531

• Date of inspection of supervisor

Please note that if the inspection is crowded, you may not be able to make a reservation on the desired inspection date.

Completed construction
<Submission of completion inspection application>
Please submit the completion inspection application (from 1 to 4) from 4 days before the scheduled inspection date to the day before.
The entry of the structure related on the four pages can be omitted by submitting a construction supervision and construction status report.
A fee is required for the inspection.
For the report attached to the completion inspection application, please see the report form download of the supervisor.
<Documents to be submitted at the time of completion inspection>
Please submit the following report to the person in charge of construction before completion inspection.

• Construction Supervision and Construction Status Report
• Concrete Construction Results Report(Limited to construction of buildings with a floor area of 3rd floor or more or a floor area of 500m2 or more.)

<Report of test results of building materials>
The following reports may be submitted after each process is completed. (Article 17-5 of the Detailed Regulations)

• Concrete strength test report
• Reinforced Pressure Test Report
• Reinforcing bar mill sheet
• Other test results report
• Photo of construction work

Completion inspection

Certificate of inspection
All the tests have been completed.
The certificate of inspection will be issued by the instructor.