3 m 3 m 3,7m Given reinforced concrete Hospital Building (framed structure) is going to be constructed at the location of MSKU (Coordinates:37.1622; 28.3738). Determine the seismic loads of each storey level by using Equivalent Earthquake Load Method. Storey DL (kN) LL (kN) 1st 2400 540 2nd 1900 540 3rd 540 1600
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- 2. A3-storey reinforced concrete frame structure with design conditions: site class I, precautionary seismic intensity 8, design basic acceleration of ground motion 0.3g, design group 1, basic natural frequency T1 = 0.6332 s, damping ratio 0.05. The representative gravity loads of each floor and the lateral stiffness of each story are shown. Please: 1) Determine the shear force in each story under frequent earthquake using the base shear method. 2) Calculate the interstory drift and check whether it meets the design requirement of the code. G3=0.6G1 K3=40 MN/m G=G1 K=40 MN/m Gı=1000 kN K1=40 MN/m TIT TIT TIT 8.4m 7.2mPlease summarize the structural seismic design procedure of pushover method.For each of the building properties listed below, identify which parameter from the base shear equations shall apply. Weight of building Seismic Base Shear In accordance ASCE-7 code, buildings must be designed to withstand lateral forces that are generated during a severe earthquake. The minimum required design force is given in several equations. Design Base Shear, V= C, W Seismic response coefficient, C,, is the smaller value from two equations: C₂ C₂ R In these equations: Spil Sp₂! Sor & Sare Seismic Acceleration Parameters from USGS maps is Importance Factor Tis Period of Vibration, (depends on building height & must be calculated) Ris Response Modification Factor from ASCE Table Wis the Effective Seismic Weight of the building. SD1 and SDs, seismic acceleration parameters R, response modification factor I, importance factor T, period None of these
- Profile and Information of the Structure 4 – Storey Residential Manila City, NCR Reinforced Concrete Building Structural System: Special-Moment Resisting Frame System (SMRF) Storey Height, h = GF@4.5m + 3@3m = 13.5 m Building Dimension: 5 m x 12 m Weight per Floor = 7.2 kPa Building Seismic Information Seismic Source Type: B Distance to nearest fault line: 5 km Soil Profile Type: SD TB = 1 sec Find: Lateral Seismic force, Fx at Second Floor. with complete solution.12.8 Given five-story building, that weighs a 100kips and has concrete shear walls and special moment-resisting frames: a) Determine Response Modification Factor, R, from ASCE 7, Table 12.2-1 for Dual System of Special Moment Frame and Special reinforced concrete shear wall (Type D-3) b) Calculate Seismic Base Shear (V) using the following ASCE 7 equations and building information: V = C, W where Cs is the lesser of Accelerations (USGS maps): SDs = 1.1 SD1 = 0.6 Cs = SDS (R/₂) and Cs = SD1. 1 T. R Building Period: T= 0.5 sec Importance Factor: le = 1.0 (commercial building) c) The architect has decided to eliminate the moment frames because the deep beams along the building perimeter reduce window openings. Determine the percent increase in base shear if the moment frames were eliminated and lateral resistance was provided with only a special reinforced concrete shear wall system (Type B-4 in ASCE Table 12.2-1)A 4-storey with Roof deck AFP armory is to be constructed in Sulu. The facility is essential for the housing of the Philippine Army's newly purchased weapons, ammunitions and explosives. The location of the facility is 7.5 km from the known source which is capable of producing a magnitude 6.7 earthquake. The structure is a Steel MRF with an overall height of 14m from the NGL. The weight per level of the slabs and stairs is equal to 1740 kN. For the walls at the typical levels, the weight is computed as 2362.5 kN and for the parapet at the roof deck level, the weight is computed as 388.8 kN. An equipment 2.0 meters high with a hexagonal cross - sectional area whose sides equal to 1 meter is installed at the second level and has a weight of 100 kPa. Using R = 8.5, which of the following most nearly gives the minimum design base shear in kN? Use Soil Type A. 761 kN 771 kN 767 kN 776 kN
- I. Single choice questions 1 . Among the following factors, which determines the level of the seismic action ( )○1 mass of building;○2 seismic site intensity;○3 dynamic property of building;○4 building grade(A)○1○4 ; (B)○2○3○4 ; (C)○3○4 ; (D)○1○2○32. It is assumed that the fundamental period of reinforced concrete frame structure is located between Tg~5Tg of acceleration design response spectrum. How the fundamental period of structure T1 and bottom horizontal seismic action Fek would change, if the contribution of infilled wall to structural stiffness is considered during structural analysis?(A)T1↓, Fek↑ (B)T1↑, Fek↑ (C)T1↑, Fek↓ (D)T1↓, Fek↓3. The purpose of restricting depth to width ratio of multi-storey masonry building is to ( )(A) avoid shear damage to building(B) avoid global bending damage to building(C) avoid differential settlement of building(D) reduce global stiffness of building4. Which of the following is not a common seismic failure to frame beams: ( )(A) Oblique…A 4-storey with Roof deck AFP armory is to be constructed in Sulu. The facility is essential for the housing of the Philippine Army's newly purchased weapons, ammunitions and explosives. The location of the facility is 7.5 km from the known source which is capable of producing a magnitude 6.7 earthquake. The structure is a Steel MRF with an overall height of 14m from the NGL. The weight per level of the slabs and stairs is equal to 1740 kN. For the walls at the typical levels, the weight is computed as 2362.5 kN and for the parapet at the roof deck level, the weight is computed as 388.8 kN. An equipment 2.0 meters high with a hexagonal cross - sectional area whose sides equal to 1 meter is installed at the second level and has a weight of 100 kPa. Using R = 8.5, which of the following most nearly gives the total lateral force at the deck level in kN? Use Soil Type A. A. 357kN B. 314kN C. 354 kN D. 349 kNA 4-storey with Roof deck AFP armory is to be constructed in Sulu. The facility is essential for the housing of the Philippine Army's newly purchased weapons, ammunitions and explosives. The location of the facility is 7.5 km from the known source which is capable of producing a magnitude 6.7 earthquake. The structure is a Steel MRF with an overall height of 14m from the NGL. The weight per level of the slabs and stairs is equal to 1740 kN. For the walls at the typical levels, the weight is computed as 2362.5 kN and for the parapet at the roof deck level, the weight is computed as 388.8 kN. An equipment 2.0 meters high with a hexagonal cross - sectional area whose sides equal to 1 meter is installed at the second level and has a weight of 100 kPa. Using R = 8.5, which of the following most nearly gives the lateral force at the 4th level in kN? Use Soil Type A.
- A 4-storey with Roof deck AFP armory is to be constructed in Sulu. The facility is essential for the housing of the Philippine Army's newly purchased weapons, ammunitions and explosives. The location of the facility is 7.5 km from the known source which is capable of producing a magnitude 6.7 earthquake. The structure is a Steel MRF with an overall height of 14m from the NGL. The weight per level of the slabs and stairs is equal to 1740 kN. For the walls at the typical levels, the weight is computed as 2362.5 kN and for the parapet at the roof deck level, the weight is computed as 388.8 kN. An equipment 2.0 meters high with a hexagonal cross - sectional area whose sides equal to 1 meter is installed at the second level and has a weight of 100 kPa. Using R = 8.5. Use Soil Type A. A. which of the following most nearly gives the weight at the 2nd level? 4373 kN 4368 kN 4363 kN 4378 kN B. which of the following most nearly gives the lateral force at the 3rd level in kN? 313 kN 308 kN…12.2 ASCE Minimum Design Loads for Buildings and Other Structures (ASCE 7-10) provide provisions for determining design seismic force for buildings and other structures. Select the correct statement(s) from the following: Design base shear is calculated using ASCE equations that account for site acceleration, building fundamental period, and type of lateral force-resisting system. Ground acceleration parameters (SDS and SD1) vary for different regions, and they shall be taken from US Geological Survey (USGS) maps. An Importance factor (1) is used to increase the seismic design forces for schools, hospitals, high-occupancy buildings and other critical facilities.For each of the building properties listed below, identify which parameter from the base shear equations shall apply. Story height (or distance from floor to floor) Seismic Base Shear In accordance ASCE-7 code, buildings must be designed to withstand lateral forces that are generated during a severe earthquake. The minimum required design force is given in several equations. Design Base Shear, V= C₂W Seismic response coefficient, C,, is the smaller value from two equations: In these equations: C₂ = Sor & Sare Seismic Acceleration Parameters from USGS maps Iis Importance Factor Spil TR Sp₂! Tis Period of Vibration, (depends on building height & must be calculated) Ris Response Modification Factor from ASCE Table Wis the Effective Seismic Weight of the building. SD1 and SDs, seismic acceleration parameters R, response modification factor I, importance factor T, period None of these