Soil Type: Silty sand Unit weight: 18 kN/m' Low tide: 3 m from river elevation TE-DOWN OR BRACKET (TYP) FLOOR JOSTS High tide: 5 m from river elevation WAVE HEGHT PRESERVATIVE-TREATED HEADER BASE FLOOD ELEVATION () Pier PRESERVATIVE-TREATED PILES /PIERS TO THE RIVER RIVER ELEVATION 6m s MAK. SCOUR (15 m 6 m (a) Side view (b) Plan view Owner of the Amir Chalet and Fishing Corner in Lumut near the Manjung River is concerned about the safety of his premises due to river erosion. A unit of chalet is estimated to weigh 10,000 kN and is supported on 4 piers located at the corners of a square area 6 m on a side. a) Calculate the total stress (o) and the effective stress(o') at point X during the high and low tide. (Assume no additional stress from the superstructure). b) Estimate the vertical stress increment (Ag) due to the additional stress from the superstructures (1 unit chalet) at point X. Use Boussinesq (1885) method. c) Compute the total vertical stress at point X when predicted minimum and maximum scouring effect took place around the piers. [Include the vertical stress increment from (b) in calculation].

Soil Type: Silty sand Unit weight: 18 kN/m' Low tide: 3 m from river elevation TE-DOWN OR BRACKET (TYP) FLOOR JOSTS High tide: 5 m from river elevation WAVE HEGHT PRESERVATIVE-TREATED HEADER BASE FLOOD ELEVATION () Pier PRESERVATIVE-TREATED PILES /PIERS TO THE RIVER RIVER ELEVATION 6m s MAK. SCOUR (15 m 6 m (a) Side view (b) Plan view Owner of the Amir Chalet and Fishing Corner in Lumut near the Manjung River is concerned about the safety of his premises due to river erosion. A unit of chalet is estimated to weigh 10,000 kN and is supported on 4 piers located at the corners of a square area 6 m on a side. a) Calculate the total stress (o) and the effective stress(o') at point X during the high and low tide. (Assume no additional stress from the superstructure). b) Estimate the vertical stress increment (Ag) due to the additional stress from the superstructures (1 unit chalet) at point X. Use Boussinesq (1885) method. c) Compute the total vertical stress at point X when predicted minimum and maximum scouring effect took place around the piers. [Include the vertical stress increment from (b) in calculation].

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Soil Type: Silty sand Unit weight: 18 kN/m³ Low tide: 3 m from river elevation TIE-DOWN OR BRACKET (TYP) FLOOR JOISTS High tide: 5 m from river elevation WAVE HEGHT PRESERVATIVE-TREATED HEADER BASE FLOOD ELEVATION (er) Pier PRESERVATIVE-TREATED PILES /PIERS TO THE RIVER ELEVATION 6 m 5 MAX. SCOUR (1.5 m) 6 m (a) Side view (b) Plan view Owner of the Amir Chalet and Fishing Corner in Lumut near the Manjung River is concerned about the safety of his premises due to river erosion. A unit of chalet is estimated to weigh 10,000 kN and is supported on 4 piers located at the corners of a square area 6 m on a side. a) Calculate the total stress (o) and the effective stress(ơ') at point X during the high and low tide. (Assume no additional stress from the superstructure). b) Estimate the vertical stress increment (Ag) due to the additional stress from the superstructures (1 unit chalet) at point X. Use Boussinesg (1885) method. c) Compute the total vertical stress at point X when predicted…