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// CODE SNIPPET

[BS] A206.3 Development of Anchor Loads Into the Diaphragm

California Existing Building Code 2019 > A Guidelines for the Seismic Retrofit of Existing Buildings > A206 Analysis and Design > A206.3 Development of Anchor Loads Into the Diaphragm
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Development of anchor loads into roof and floor diaphragms shall comply with Section 1613 of the California Building Code using horizontal forces that are 75 percent of those used for new construction.

In wood diaphragms, anchorage shall not be accomplished by use of toenails or nails subject to withdrawal. Wood ledgers, top plates or framing shall not be used in cross-grain bending or cross-grain tension. The continuous ties required in Section 1613 of the California Building Code shall be in addition to the diaphragm sheathing.

Lengths of development of anchor loads in wood diaphragms shall be based on existing field nailing of the sheathing unless existing edge nailing is positively identified on the original construction plans or at the site.

Exception: If continuously tied girders are present, the maximum spacing of the continuity ties is the greater of the girder spacing or 24 feet (7315 mm).

Related Code Sections


A206.3 Guidelines for the Seismic Retrofit of Existing Buildings, Development of Anchor Loads Into the Diaphragm
Development of anchor loads into roof and floor diaphragms shall comply with Section 1613 of the California Building Code using horizontal forces ...
California Existing Building Code 2019 > A Guidelines for the Seismic Retrofit of Existing Buildings > A206 Analysis and Design > A206.3 Development of Anchor Loads Into the Diaphragm
1613A.5.1 Structural Design, Transfer of Anchorage Forces Into Diaphragm
and the attached components. Connections shall extend into the diaphragm a sufficient distance to develop the force transferred into the diaphragm ...
California Building Code 2016 (Vol 1 & 2) > 16A Structural Design > 1613A Earthquake Loads > 1613A.5 Amendments to ASCE 7 > 1613A.5.1 Transfer of Anchorage Forces Into Diaphragm
1613.5.1 Structural Design, Transfer of Anchorage Forces Into Diaphragm
and the attached components. Connections shall extend into the diaphragm a sufficient distance to develop the force transferred into the diaphragm. Exception ...
California Building Code 2016 (Vol 1 & 2) > 16 Structural Design > 1613 Earthquake Loads > 1613.5 Amendments to ASCE 7 > 1613.5.1 Transfer of Anchorage Forces Into Diaphragm
8.2.5 Seismic Evaluation Procedures for Hospital Buildings, Tilt-Up Walls
Precast bearing walls are connected to the diaphragms for out-of-plane loads; steel anchors or straps are embedded in the walls and developed ...
California Administrative Code 2019 > 6 Seismic Evaluation Procedures for Hospital Buildings > 8 Procedures for Connections > 8.2 Anchorage for Normal Forces > 8.2.5 Tilt-Up Walls
8.2.5 Seismic Evaluation Procedures for Hospital Buildings, Tilt-Up Walls
Precast bearing walls are connected to the diaphragms for out-of-plane loads; steel anchors or straps are embedded in the walls and developed ...
California Administrative Code 2016 > 6 Seismic Evaluation Procedures for Hospital Buildings > 8 Procedures for Connections > 8.2 Anchorage for Normal Forces > 8.2.5 Tilt-Up Walls
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