Lateral Force The force that acts in the direction parallel to ground and perpendicular to the direction of gravitational pull of earth is known as lateral forces. For the seismic weight calculations, use the dead load and 25% of the live load. For static analysis, the equivalent lateral force method were used, while for dynamic analysis, the response spectrum method is used. Learn vocabulary, terms, and more with flashcards, games, and other study tools. The three principal types of resisting elements are shear walls, braced frames, and moment- resisting frames. In general, this analysis performed statically and dynamically. The development of seismic forces using the Equivalent Lateral Force Procedure equation V=Cs * W will be explained through the terms of Newton's 2nd Law. Learn vocabulary, terms, and more with flashcards, games, and other study tools. Determine the earthquake force on each story in North-South direction. However, lateral force Earthquake Load Calculation (base shear method) The 3-story standard office building is located in Los Angeles situated on stiff soil. This course will cover the development of the equivalent seismic force based on IBC 2012 and ASCE 7-10 using ASCE 7-10 Section 12.8. susceptible to liquefaction and lateral spreading during earthquakes. NYC Building Code 2008 > 16 Structural Design > 1617 Earthquake Loads — Minimum Designlateral Force and Related Effects > 1617.4 Equivalent Lateral Force Procedure for Seismic Design of Buildings 1618.1 Structural Design, Dynamic Analysis Procedures Determine total passive force, Pp at toe per foot width of wall. Determine total force, Pa, at heel per foot width of wall. load combinations to solve for the variety of structural solutions. Solution for For earthquake loads, ground shaking causes inertial forces in the a. Lateral force-resisting system b. Beams c. Diaphragm d. Foundation e. Columns… It only finds your base shear forces, you will still need to plug any seismic shear forces into either your ASD ? 3.Static properties (modulii, strength etc.) In this paper, a reactor building is considered for earthquake lateral force analysis to determine the design base shear force. earthquake ground motion and is equal to the addition of 0.50 Ca I D to the dead load effects D Ωo = seismic force amplification factor as given in Table (A-4), and accounts for structural over-strength r = redundancy factor, to increase the effects of earthquake loads on structures with few lateral force resisting elements, given by rmax Ag 6.10 1.Resonance will not occur during earthquake as the force is random & impulsive, not steady state. 1. EARTHQUAKE LOADS (BNBC) - View presentation slides online. Lateral Force Demand of Essential Equipments in Hospital Buildings for Earthquakes . Earthquake resistant design of structures (Subject Code: 06CV834) UNIT 5 & Unit 6: Seismic lateral force analysis Contents: Unit 5: Determination design lateral loads, Seismic design philosophy, Equivalent lateral procedure and Dynamic analysis procedure. All moment-resisting frames are located at the perimeter of the building. It is well recognized that structures designed by current codes undergo large inelastic deformations during major earthquakes. UBC97 Earthquake Lateral Forces Download https://goo.gl/kcY Unit 6: Step by step procedure for seismic analysis of RC buildings (Maximum of four storey), The concept employed in equivalent static lateral force procedures is to place static loads on a structure with magnitudes and direction that closely approximate the effects of dynamic loading caused by earthquakes. A series of large-scale dynamic centrifuge model tests were performed to study the behavior of single piles and pile groups in a soil profile comprised of a nonliquefied crust spreading laterally over a loose saturated sand layer. BibTex; Full citation Abstract. This spreadsheet will find your seismic coefficient for structural building (Chapter 12) and non-building (Chapter 15) systems. MINIMUM DESIGN EARTHQUAKE. Redundancy 12.Determine lateral force analysis procedure 13.Compute lateral loads 14.Add torsional loads, as applicable 15.Add orthogonal loads, as applicable 16.Perform analysis 17.Combine results 18.Check strength, deflection, stability. Lateral deflection is the predicted movement of a structure under lateral loads. The Static Lateral Force Procedure. Lateral shaking is the force that can cause the most damage to a building during an earthquake. Using coulomb's lateral earth pressure theory. 1.4 Earthquake Demand versus Earthquake Capacity 10 1.5 Force-based Design to Displacement-based Design 13 2 Earthquake Demand on Buildings ... H Lateral base shear force of the building Hmax Peak lateral strength I Importance factor Ib,eff Effective moment of inertia of beam This site uses cookies. Assumptions – EQRD Clause: 6.2 Static force procedures of most building codes require that the lateral earthquake force at each floor level of an asymmetric-plan building be applied eccentrically from the centers of rigidity. Cite . By continuing to use our website, you are agreeing to our privacy policy. HORIZONTAL LATERAL FORCE BUILDINGS ( CLAUSE 7.5.1) Buildings and portions there of shall be designed and constructed, to resist at SEISMIC ZONE P% least the effects of design lateral force || 0.7 specified in 7.5.1. The 1923 Great Kantō earthquake (Japan) and earlier events inspired Japanese engineer Toshikata Sano to develop a lateral force procedure that was officially implemented in the 1924 Japanese Urban Building Law, which directed engineers to design buildings for horizontal forces of about 10% of the weight of the building. represent material behavior during earthquake. Equivalent Static Lateral Forces. It is different from longitudinal force in such a way that in case of lateral force, the direction of the force is parallel to the plane of reference of structure and perpendicular to the axis of rotation of the structure. It is well recognized that structures designed by current codes undergo large inelastic deformations during major earthquakes. 14 LATERAL FORCES— EARTHQUAKES Nomenclature C a numericalcoeﬃcientusedin Equation14.2,givenin UBCTable16-Q C v numericalcoeﬃcientusedin Equation14.1,givenin UBCTable16-R C t numericalcoeﬃcientforcalcu- latingtheperiodofvibration F p … Equivalent Lateral Force vs Response Spectrum Analysis Published on November 5, 2018 November 5, 2018 • 100 Likes • 12 Comments Ground Motion Lateral Force Earthquake Engineer Building Code Fundamental Period These keywords were added by machine and not by the authors. 2.Earthquake does not occur simultaneously with maximum wind, flood or sea wave. 100 ... attached in a series of reference buildings to examine the structural demand of hospital equipments during an earthquake. 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