Framing & StructuralCâu 331 / 700
At the bearing ends of many wood I-joists, what component is often required to prevent web crushing or rotation?
a.Extra roofing felt
b.Web stiffeners (bearing blocks) and/or blocking panels
c.A thicker subfloor
d.Additional drywall screws
Giải thích
At supports, I-joist webs can be prone to crushing or the joist to rotation, so manufacturers often require web stiffeners (bearing blocks) fitted in the web and blocking panels or rim board at the ends. Roofing felt, thicker subfloor, and drywall screws do not address I-joist bearing.
Trích dẫn luật: 2025 CA Residential Code §R502.11Luyện miễn phí toàn bộ 700 câu hỏi — không cần đăng ký.
Câu hỏi liên quan cùng chủ đề
- When a bird's-mouth seat cut is made where a rafter bears on the top plate, what limits how deep that notch may be cut?
- CALCULATION: A hip rafter runs diagonally across the plan corner of a roof. Compared with a common rafter having the same rise, the hip rafter is:
- On a wood I-joist, where may holes generally be cut, and which part must never be cut or notched?
- For laminated veneer lumber (LVL) and glued-laminated (glulam) beams, where must any holes or notches be located and sized?
- A glued-laminated (glulam) beam is stamped 'TOP' along one edge. Why must it be installed with that face up?
- What minimum bearing length is commonly required at the ends of engineered wood floor members unless the manufacturer specifies otherwise?
Cập nhật gần nhất: · quy trình kiểm tra
Đội Ngũ Biên Tập PrepPass · Đối chiếu với California CSLB General Building (B) Trade Examination · Quy trình kiểm tra