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// CODE SNIPPET

4.3.14 Joint Reinforcing

California Administrative Code 2019 > 6 Seismic Evaluation Procedures for Hospital Buildings > 4 Procedures for Moment-Resisting Systems > 4.3 Concrete Moment Frames > 4.3.14 Joint Reinforcing
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Column ties extend at their typical spacing through all beam-column joints at exterior columns.

For buildings designed and constructed in accordance with the 1989 or later editions of Part 2, Title 24, the evaluator may consider this condition as mitigated, and no calculations are necessary. The deficiency is in the strength and ductility of the beam-column joint. Calculate the joint capacity, Ve, and the joint shear, Vj. The joint shear is calculated at a horizontal section at mid-height of the joint. The horizontal shear at the critical section is obtained from summation of horizontal forces in a free-body diagram of the upper half of the joint as Vj = (Tl + Tr) — Ve where Tl and Tr, the forces in the flexural tensile reinforcement in the beams on the left and right sides of the joint, respectively, are calculated assuming a steel stress equal to 1.25 fy. See Figure 4.3.14 for computation of Ve. The ratio Vj/Ve shall be less than or equal to 1. Conforming buildings which do not meet this criteria shall be placed in SPC 4.

FIGURE 4.3.14

Mpr and Ve

Related Code Sections


4.3.14 Seismic Evaluation Procedures for Hospital Buildings, Joint Reinforcing
in the flexural tensile reinforcement in the beams on the left and right sides of the joint, respectively, are calculated assuming a steel stress equal to 1.25 ...
California Administrative Code 2019 > 6 Seismic Evaluation Procedures for Hospital Buildings > 4 Procedures for Moment-Resisting Systems > 4.3 Concrete Moment Frames > 4.3.14 Joint Reinforcing
4.3.14 Seismic Evaluation Procedures for Hospital Buildings, Joint Reinforcing
in the flexural tensile reinforcement in the beams on the left and right sides of the joint, respectively, are calculated assuming a steel stress equal to 1.25 ...
California Administrative Code 2016 > 6 Seismic Evaluation Procedures for Hospital Buildings > 4 Procedures for Moment-Resisting Systems > 4.3 Concrete Moment Frames > 4.3.14 Joint Reinforcing
R404.1.3.3.7.8 Foundations, Construction Joint Reinforcement
) on center. Construction joint reinforcement shall have a minimum of 12 inches (305 mm) embedment on both sides of the joint. Construction joints ...
California Residential Code 2016 > 4 Foundations > R404 Foundation and Retaining Walls > R404.1 Concrete and Masonry Foundation Walls > R404.1.3 Concrete Foundation Walls > R404.1.3.3 Concrete, Materials for Concrete, and Forms > R404.1.3.3.7 Reinforcement > R404.1.3.3.7.8 Construction Joint Reinforcement
R404.1.3.3.7.8 Foundations, Construction Joint Reinforcement
) on center. Construction joint reinforcement shall have not less than 12 inches (305 mm) embedment on both sides of the joint. Construction joints ...
California Residential Code 2019 > 4 Foundations > R404 Foundation and Retaining Walls > R404.1 Concrete and Masonry Foundation Walls > R404.1.3 Concrete Foundation Walls > R404.1.3.3 Concrete, Materials for Concrete, and Forms > R404.1.3.3.7 Reinforcement > R404.1.3.3.7.8 Construction Joint Reinforcement
R606.13.2.3 Wall Construction, Bonding With Prefabricated Joint Reinforcement
Where the facing and backing (adjacent wythes) of masonry are bonded with prefabricated joint reinforcement, there shall be not less than one cross ...
California Residential Code 2016 > 6 Wall Construction > R606 General Masonry Construction > R606.13 Multiple-Wythe Masonry > R606.13.2 Bonding With Wall Ties or Joint Reinforcement > R606.13.2.3 Bonding With Prefabricated Joint Reinforcement
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