UPDATE-How To Analysis and Design Water Tank In ETABS & SAFE
In this educational video, we will analyze and design a water tank buried in the soil in static conditions. Vertical and horizontal and cross ties rebar design are added to this video.
First, we assume that the wall is not cracked, and after the initial analysis, we check the cracking of the walls, The walls are cracked, we will modify their out-of-plane bending stiffness coefficients. Also, in order to make the design of the wall more economical, the thickness of the walls will be variable in height. To design the walls we will use general reinforcing option. Most of the moment is formed at the bottom of the wall and therefore most of the bending rebars will be reported in the region.
Finally, we will use SAFE v16 to design the foundation
#ETABS#WaterTank#WallGeneralReinforcing
TimeCodes
0:00 - ETABS
0:45 - Water Tank Dimensions from AutoCad File
01:06 - Define Grid Lines
01:33 - Define Wall Section( shell Tin )
01:50 - Draw Walls In plane
02:05 - Display Walls Local 3 axis
04:45 - Define and Assign Pier Labels To Walls
04:58 - Dividing Shells (Mesh)
05:10 - Assign Restraints to walls
05:54 - Assign Stiffness Modifiers to Walls (m11,m22,m12=0.25,f22=0.7 like slabs)
08:48 - Define and Assign Soil and Water pressure Load patterns in type of other
09:37 - Cracking Formula for water tank walls (blue areas)
11:39 - Defining Piers sections to walls by general reinforcement
12:12 - Comparison between number of piers in wall height
14:14 - Assigning piers sections to walls and starting designing vertical bars by M22 moment by default and user load combinations
16:35 - Calculating Horizontal rebars By M11 moment from ETABS
18:30 - Calculating wall Crossties by V23 from ETABS
25:00 - Design Foundation of Water tank in SAFE V16
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