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. This article is a UBC 1997 seismic design example that elaborates the calculation process in actual conditions. Structural loads, structural analysis and structural design are simply explained with the worked example for easiness of understanding. Further, limiting values of the drift, etc shall be checked as per the code requirement as discussed in the article UBC 1997 seismic design. He has led his firm’s design work on projects such as the Getty Museum and major buildings on the campuses of the University of California at Los Angeles, Riverside, and San Diego. Mechanics and Design (1992) Priestley, Seible, and Calvi Seismic Design and Retrofit of Bridges (1996) AASHTO AASHTO LRFD Bridge Design Specifications (1996) ASCE-ACI Committee 445 Recent Approaches to Shear Design … 0000009264 00000 n The instructor/student should carefully review Chapter 10 of FEMA 451 for additional information on the seismic resistant design of wood structures. F t = 0. 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 … Instructional Materials Complementing FEMA P-751, Design Examples . SAMPLE DESIGN CALCULATIONS. Performance-based seismic design of a continuous bridge Authors: G. Ghosh , Y. Singh , S. K. Thakkar Source: Proceedings of the Institution of Civil Engineers - Bridge Engineering, Volume 161, Issue 4 , 1 Dec 2008 (177–182) xref 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. These definitions are obtained from FEMA P-749, but are very close to the brief descriptions in ASCE/IBC procedures. 0000003303 00000 n 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. We consider the mass of the structure is lumped at each floor level in this calculation. However, from a seismic design point of view, several other design … However, seismic criteria must be addressed in this case. Structural Engineers use different design codes/guidelines for calculation of earthquake loads. 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. 0000003350 00000 n Also, construction materials, shoring system design, water retaining structures, crack width calculations, etc. ADSTIR ACT ( s ss reverse as If necessary and fdeitfy by bl ock bor . Seismic Design Updates for the California Building Code Dave Baska PhD, PE, GE, CEG August 2019. 0000000736 00000 n Effective January 1, 2020 All applications for a building permit submitted on or after January 1, 2020 … Seismic Design of Earth Retaining Structures By Atop Lego, M.Tech (Struct.) Middle: 5'x30'x4'-0" Side: 8'x32'x4'-0" Foundation Design … 430 0 obj<>stream 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. The Seismic Design Manual includes hundreds of pages of comprehensive design examples, including connections, updated for the 2016 AISC Seismic Provisions. %PDF-1.4 %���� Detached one- and two-family dwellings, assigned to Seismic Design … 0000130837 00000 n Given: Per original Sample Calculation Statement: • Property is located in a FEMA-designated floodplain (Zone AE) and is subject to a 100-year . Retaining walls--design and construction (LC)' Richards-Elms retaining wall design method (WES). 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). Further, other permanent loads like super-imposed dead loads, machines on the floor, etc should be considered for the seismic dead weight. 0000005171 00000 n x��V�oSu?�X�v[s8�kGP���N;:��^wE6I٠u��Yr��Z&@��è!A���LF��4�E�!���F��u�� ���|��|�����|���^HG�� ���@�4�R�"M���#��v�F7��R���˕@�������` ��L;O���@�:!�[ +�������'l�����ٳ3�0)���p�m���|����Ίg� ?Cv���G�T� �^�:w8=�k��˧B)���;lP�{a3�\o�N�BS�L�D�L�_-�bǹ��2����|N�ձ�7�.5��� �����=���M0����@e�����zU����;���o_�o�n�C�N�E�7���;.�(�J���Κ�ڼfOgY�xee^Y�����+�W44O+ze��LX�|��}9^&����f5��@�}o��+��9[ 0 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. Check/Design elements of SFRS for seismic Load Combinations. 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 … Vmax = ( 2.5 x 0.08 x 1 / 3.5 ) 260 = 14.857 kN. 1. … 1, 2, 3) have replaced the use of seismic zones with Seismic Design … 0000003727 00000 n Forces to be applied at each floor level can be calculated as follows Volumes 2 and 3: Building Design Examples, furnish examples of seismic design … 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 … Structures assigned to Seismic Design Category C, D, E, and F with Type 1a and Type 1b horizontal structural irregularity New Diaphragm Requirements •Section 12.10.3 required for … Further, Ft is taken not greater than 0.25 V where the T > 0.7 and it can be calculated from the following equation. Example 1 … Also included are two AISC seismic-related standards: the 2016 AISC Seismic … Volume 1: Code Application Examples, provides step-by-step examples for using individual code provisions, such as computing base shear or building period. In this example, I considered the building located in Zone 01 where the. Design Example of a Building IITK-GSDMA-EQ26-V3.0 Page 3 Example — Seismic Analysis and Design of a Six Storey Building Problem Statement: A six storey building for a commercial complex has plan … V = ( 0.08 x 1 / 3.5 x 0.471 ) 260 = 12.618 kN. flood 4 ft in depth above ground level; • Local regulations require an additional 1 ft of freeboard above the 100-year flood elevation; … FEMA P-751, NEHRP Recommended Seismic Provisions: Design Examples 10-4. Element designs with notes and discussions have added to get comprehensive knowledge. 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. The beam shown below is part of a special moment frame located in … However, seismic … F1 = 12.618 x 100 x 4 / [100 x 4 + 100 x 8 + 60 x 12] = 12.618 x 400 / 1920 = 2.629 kN, F2 = 12.618 x 100 x 8 / [100 x 4 + 100 x 8 + 60 x 12] = 12.618 x 800 / 1920 = 5.258 kN, F3 = 12.618 x 60 x 12 / [100 x 4 + 100 x 8 + 60 x 12] = 12.618 x 720 / 1920 = 4.732 kN. 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. .--- - The report discusses the seismic design … UBC 1997 seismic design process is discussed in another article on the web site. 1. The instructor/student should carefully review Chapter 10 of FEMA 451 for additional information on the seismic resistant design … EUR 25204 EN - 2012 Eurocode 8: Seismic Design of Buildings Worked examples Worked examples presented at the Workshop “EC 8: Seismic Design of Buildings”, … %%EOF 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 C1. 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 … 409 22 Force to be applied in the static analysis can be calculated from the following equation. 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 base shear for a building using the simplified analysis procedure 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. 2015 IBC SEAOC Structural/Seismic Design Manual, Vol. The figure below indicates the structural arrangement considered for UBC 1997 seismic design example. For both example building locations where the building is normal occupancy … The concept of this method is the lumped mass. Instructional Material Complementing FEMA 451, Design Examples Seismic Load Analysis 9 - 31 Diaphragm Flexibility • Untopped steel decking and untopped wood structural panels are considered … 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. seismic design category for a structure is permitted to be determined in accordance with Section 1613 or ASCE 7”. seismic design shear forces. guide for the seismic design of new piping systems, and the seismic retrofit of existing, operating systems in critical facilities. 2015 IBC SEAOC Structural/Seismic Design Manual, Vol. In addition, for more information on seismic designs, the Wikipedia article earthquake engineering could be studied. Results for all Seismic Resistant System Footings . Check whether the base shear is within the limit. No Fine Concrete [application and advantages], Types of Shrinkage in Concrete [detailed study], Shear key [ Purpose, types, design, construction details]. 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: 0000000016 00000 n 0000079968 00000 n Chapter 3 – General Provisions & Seismic Design Criteria SDR Workbook – 2015 IBC Version 1-36 Steven T. Hiner, MS, SE Alternative Seismic Design Category Determination IBC §1613.3.5.1 Where S1 < 0.75, the Seismic Design … Ft – is the portion of base shear(V) considered concentrated at the top of the structure in addition to the forces distributed from base shear. 0000002298 00000 n 20. 0000003267 00000 n 0000004907 00000 n <]>> UBC 1997 seismic design example includes the calculation of the base shear and its distribution over a three-story building. 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