Handbook for the Seismic Evaluation of Existing BuildingsProvides engineers involved with the seismic evaluation of existing buildings with guidance concerning the potential earthquake related risk to human life posed by a building or building component. |
Other editions - View all
Common terms and phrases
1988 NEHRP Recommended 80 percent adjacent analysis anchorage beams bearing walls braced frames building satisfies BUILDING SYSTEMS Building Type center of mass chord concrete shear walls connections cross walls dead load deficiency deterioration diagonal diaphragm openings diaphragm shear drift ductility earthquake engineer Figure floor following evaluation statements foundation frame elements hazard high seismicity horizontal infill walls joints kips lateral force resisting lateral loads lateral-force lateral-force-resisting system load path major plan dimension masonry shear walls masonry walls moment frames mortar NEHRP Recommended Provisions nonstructural elements out-of-plane plan irregularities plastic hinges plywood precast concrete Procedure Quick Check indicates reinforced concrete REINFORCING AT OPENINGS reinforcing steel resisting system rigidity roof satisfies the Quick seismic forces shear capacity shear strength sheathing Significant torsion STATEMENTS FOR BUILDING steel frame stiffness T F T F T F topping slab unreinforced masonry veneer vertical elements wall anchors wall panels wood diaphragms
Popular passages
Page 19 - The site factor shall be established from properly substantiated geotechnical data. In locations where the soil properties are not known in sufficient detail to determine the soil profile type soil profile S} shall be used.
Page 18 - Floor live load in public garages and open parking structures is not applicable. 2. Where an allowance for partition load is included in the floor load design, the actual partition weight or a minimum weight of 10 psf (479 P) of floor area, whichever is greater, shall be applicable.
Page 24 - For the load combination, including earthquake, the soil capacities must be sufficient to resist loads at acceptable strains considering both the short time of loading and the dynamic properties of the soil.
Page 33 - ... foot acting normal to the wall at the level of the floor or roof. (d) Level of Required Repair. Alterations and repairs required to meet the provisions of this Division shall comply with all other applicable requirements of this Code unless specifically provided for in this Division.
Page 37 - Stiffness Irregularity — Soft Story A soft story is one in which the lateral stiffness is less than 70 percent of that in the story above or less than 80 percent of the average stiffness of the three stories above.
Page 23 - For buildings having a period of 0.5 seconds or less, k = 1 For buildings having a period of 2.5 seconds or more, k = 2 For buildings having a period between 0.5 and 2.5 seconds, k...
Page iii - FEMA is sponsoring to encourage local decision makers, the design professions, and other interested groups to undertake a program of mitigating the risks that would be posed by existing hazardous buildings in case of an earthquake. Publications in this series examine both engineering and architectural aspects as well as societal impacts of such an undertaking. They are prepared under the National Earthquake Hazards Reduction Program.
Page 23 - Section 2312 (g) and (i), every structure shall be designed and constructed to resist minimum total lateral seismic forces assumed to act nonconcurrently in the direction of each of the main axes of the structure in accordance with the following formula: V = ZIKCSW. (12-1) The value of K shall be not less than that set forth in Table No.
Page 30 - Response spectrum analysis. An elastic dynamic analysis of a structure utilizing the peak dynamic response of all modes having a significant contribution to total structural response. Peak modal responses are calculated using the ordinates of the appropriate response spectrum curve which correspond to the modal periods.