1. … EXAMPLE 9 SEISMIC ZONE 1 DESIGN 1 2018 Design Example 9 • • • • Example 9: Seismic Zone 1 Design Example Problem Statement Most bridges in Colorado fall into the Seismic Zone 1 category. EXAMPLE. CALCULATE VERTICAL LOADS. The following data were considered in this UBC 97 seismic design example. 3) Seismic design categories (_____) can be assigned and determined as a function of the “mapped” spectral accelerations and the risk category. 2 133 Design Example 2 n Flexible Diaphragm Design As given, the base shear for this building is V = 0.25W.Because it is a one-story building, Equation 12.10-1 simply becomes the following: EXAMPLE 9 SEISMIC ZONE 1 DESIGN 1 2018 Design Example 9 • • • • Example 9: Seismic Zone 1 Design Example Problem Statement Most bridges in Colorado fall into the Seismic Zone 1 category. FEMA P-751, NEHRP Recommended Seismic Provisions: Design Examples 10-4. Seismic Design Updates for the California Building Code Dave Baska PhD, PE, GE, CEG August 2019. Structural Guide © 2021. Distribution of the forces due to the earthquake is done accordingly in following UBC 1997 seismic design example. Example 1 juxtaposes the seismic design methods and calculations for an identical bridge for both the 1000 yr. and 500 yr. events in order to highlight the differences and similarities between the two, and serves as a transitional reference for the designer. 0000000736 00000 n seismic design category for a structure is permitted to be determined in accordance with Section 1613 or ASCE 7”. Exceptions: 1. flood 4 ft in depth above ground level; • Local regulations require an additional 1 ft of freeboard above the 100-year flood elevation; … 0000049890 00000 n Structures assigned to Seismic Design Category C, D, E, and F with Type 1a and Type 1b horizontal structural … SSW (E/Z) AP, PWD; Itanagar Introduction The problem of retaining soil is one the oldest in the geotechnical engineering; some of the earliest and most fundamental principles of soil mechanics were developed to allow rational design … The instructor/student should carefully review Chapter 10 of FEMA 451 for additional information on the seismic resistant design of wood structures. The Seismic Design Manual includes hundreds of pages of comprehensive design examples, including connections, updated for the 2016 AISC Seismic Provisions. Further, Ft is taken not greater than 0.25 V where the T > 0.7  and it can be calculated from the following equation. 409 22 0000003303 00000 n 0000005171 00000 n seismic design category for a structure is permitted to be determined in accordance with Section 1613 or ASCE 7”. The NBCC2015 Seismic Design Examples document contains structural models designed to illustrate and guide users who want to better understand both seismic or dynamic analysis and design and … Vmax = ( 2.5 x 0.08 x 1 / 3.5 ) 260 = 14.857 kN. These forces could be applied to the computer model, and bending, shear, deflection could be obtained from the same to proceed with the desing. F t = 0. Widely accepted codes for calculation of seismic loads are, Uniform Building Code 1997 (UBC-97), International building code (IBC), ASCE-7-10, Building code of Pakistan (seismic … SSW (E/Z) AP, PWD; Itanagar Introduction The problem of retaining soil is one the oldest in the geotechnical engineering; some of the earliest and most fundamental principles of soil mechanics were developed to allow rational design of retaining walls. V = ( 0.08 x 1 / 3.5 x 0.471 ) 260 = 12.618 kN. SEISMIC DESIGN EXAMPLE 2- Design of the critical end regions of a beam in a special moment frame for shear and confinement. Further, other permanent loads like super-imposed dead loads, machines on the floor, etc should be considered for the seismic dead weight. Also included are two AISC seismic-related standards: the 2016 AISC Seismic … However, depending on the type of the structure and as specified in UBC 97, the relevant components of the live load could be added to the dead weight. = 25.4 mm, 1.0 ft = 0.3048 m) The floor is concrete slab-on-grade construction. … It contains design examples and complete solutions calculated using ASD and LRFD. Detached one- and two-family dwellings, assigned to Seismic Design … trailer 0000003650 00000 n However, the seismic design exemptions discussed earlier are a function of the design ground motion level at a given location. SAMPLE DESIGN CALCULATIONS. 0000003267 00000 n seismic design shear forces. Forces to be applied at each floor level can be calculated as follows The instructor/student should carefully review Chapter 10 of FEMA 451 for additional information on the seismic resistant design … Seismic Design Manual illustrates how the provisions of the code are used. Detached one- and two-family dwellings, assigned to Seismic Design Category A, B or C, or located where the mapped short-period … Seismic Design Principles – Factors to be Considered, Seismic Design Principles - Factors to be Considered, Zone factor: Seismic zone represent the peak ground acceleration that the structure is subjected to. Figure 10.1-2 End wall elevation (1.0 in. EXAMPLE C1. 430 0 obj<>stream The concept of this method is the lumped mass. ii) Re-analyse if significant changes made to elements of SFRS iii) Update generated (Fx ±Tx) load cases (and hence combinations) iv) Re-analyze to update seismic combination results and re-Check/Design iv) Iterate ii-iv until completion. xref 2015 IBC SEAOC Structural/Seismic Design Manual, Vol. Per AASHTO, no seismic analysis is required for structures in Zone 1. Rules for the representation and calculation of seismic actions and for their combination with other actions Section 4 –Design of buildings General design rules relevant specifically to buildings Section 5-9 –Specific rules for design of several types of buildings Design … Effective January 1, 2020 All applications for a building permit submitted on or after January 1, 2020 … No Fine Concrete [application and advantages], Types of Shrinkage in Concrete [detailed study], Shear key [ Purpose, types, design, construction details]. Through the examples in this course, you will learn how to: Seismic Design Force and Base Shear Example 1 - Calculating seismic design force and base shear on a 6 story reinforced concrete building; Example 2 - Calculating the seismic design force and seismic … E. Carvalho, M. Fardis . However, seismic criteria must be addressed in this case. 1, 2, 3) have replaced the use of seismic zones with Seismic Design … 0000003350 00000 n 0000000016 00000 n 0000079968 00000 n The beam shown below is part of a special moment frame located in … Calculate the following earthquake loads on the two-story building constructed with special reinforced masonry shear walls shown in Figure 4: earthquake load on the seismic force resisting system, and; out-of-plane earthquake load on a typical second story wall. Seismic design shear Ve in plastic hinge regions is associated with maximum inelastic moments that can develop at the ends of members when the longitudinal tension reinforcement is in the strain hardening range (assumed to develop 1.25 fy). Instructional Materials Complementing FEMA P-751, Design Examples . Volume 1: Code Application Examples, provides step-by-step examples for using individual code provisions, such as computing base shear or building period. Page Numbers – In the page numbering of the Manual (9-2-1, for example) the first numeral … More recently, design codes and standards (refs. Historically, degree of seismic risk and the resulting design loads have been linked to seismic zones, with higher seismic zones associated with higher anticipated ground motion. 0000130837 00000 n startxref Continued from Seismic Design For Fire Sprinkler Systems – Part 3a: Practical Example Before moving on, let’s examine a couple of options that can be considered with the layout that we now have. UBC 1997 seismic design example includes the calculation of the base shear and its distribution over a three-story building. Structural loads, structural analysis and structural design are simply explained with the worked example for easiness of understanding. FEMA P-751, NEHRP Recommended Provisions: Design Examples 13-6 Because the weight of the inlet filters is 25 percent or more of the combined weight of the nonbuilding structure and the supporting structure (Standard Sec. in Chapter 10 of FEMA 451, NEHRP Recommended Provisions: Design Examples. have discussed in addition to other aspects. in Chapter 10 of FEMA 451, NEHRP Recommended Provisions: Design Examples. 0000002516 00000 n The AWWA code [1] includes a factor "R" that is used to establish forces for the seismic design of water tanks (circular welded steel, circular bolted steel, circular prestressed concrete, rectangular reinforced concrete, circular wood… 0000004907 00000 n Generally, the seismic weight is the self-weight of the structure. This worked example is a static method of calculating the force to do the static analysis. Further, relevant areas to the design are also discussed in this article. This resource page provides an introduction to the concepts and principles of seismic design, including strategies for designing earthquake-resistant buildings to ensure the health, safety, and security of building occupants and assets.The essence of successful seismic design is three-fold. 0000004498 00000 n In this example, I considered the building located in Zone 01 where the. 2015 IBC SEAOC Structural/Seismic Design Manual, Vol. guide for the seismic design of new piping systems, and the seismic retrofit of existing, operating systems in critical facilities. Solutions have been developed based on the 2015 and 2018 National Design Specification®(NDS®) for Wood Construction, and the 2015 Special Design Provisions for Wind and Seismic … 15.3.2), the inlet filters are classified as “nonbuilding structures” and the seismic design … Check whether the base shear is within the limit. The 2015 IBC SEAOC Structural/Seismic Design Manual provides a step-by-step approach to applying the structural provisions of the 2015 International Building Code and referenced standards. 0000009264 00000 n .--- - The report discusses the seismic design … Instructional Material Complementing FEMA 451, Design Examples Seismic Load Analysis 9 - 31 Diaphragm Flexibility • Untopped steel decking and untopped wood structural panels are considered … %PDF-1.4 %���� 0000002298 00000 n First, the design team must take a multi-hazard approach towards design that accounts for the potential impacts of seismic forces as well as all the major hazards to which an area is vulnerable. structures, as shown for example in Figures 1 and 2, are normally required in the presence of softer more compressible soils, where design concerns relate to bearing capacity and allowable settlement. 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