requirements for bonding two intersecting exterior load-bearing 8-inch hollow masonry walls11/22/2024 What are the requirements for bonding two intersecting exterior load-bearing 8-inch hollow masonry walls (not forming an outside corner, with one wall abutting the exterior building shell) in a 150 mph wind zone according to the 8th edition of the Florida Building Code (FBC)? Can mechanical bonding at the low, mid, and top levels or running masonry bond at these three locations achieve compliance? In the 8th edition of the Florida Building Code (FBC), which references the TMS 402/602 Building Code Requirements and Specification for Masonry Structures, intersecting masonry walls must be adequately bonded to ensure structural integrity, especially in high wind zones like the 150 mph area you're describing.
According to TMS 402-22, Section 5.2.2, there are provisions for lateral support of intersecting walls. The code allows for various methods to achieve this connection, including: 1. Toothing and Bonding: Interlocking the masonry units of the intersecting walls. 2. Metal Ties or Connectors: Using metal ties or connectors spaced at specified intervals to join the walls. 3. Bond Beams: Incorporating bond beams at specific intervals to tie the walls together. Given the high wind zone (150 mph), it's crucial to ensure that the chosen method provides sufficient lateral support. Mechanical bonding at the low, mid, and top levels can be effective if it meets the spacing and material requirements specified in the code. Similarly, running masonry bond at these locations is acceptable if it ensures proper interlocking and load transfer between the walls. It's important to consult the specific sections of TMS 402-22 and the FBC for detailed requirements, as compliance depends on adherence to prescribed methods and materials. For more detailed information, refer to the TMS 402/602-22 Building Code Requirements and Specification for Masonry Structures. Additional information: Chapter 5 - Structural Members
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