Civil Engineering homework help

CE 315 Moving load/project #2 Due date: 12/06/2020

The report of the project#2 must be submitted online as a single PDF file. The results of simulation using 3D demo RISA should be included. You can use screenshot option of windows to report the results. For each moving load/truck assume two-way route and report envelope for shear and moment for 42 cases (7 trucks moving on 6 bridges). In addition, report the maximum negative and positive moments and maximum shear for each structure (complete tables 2-4).

Moving load scenarios/trucks

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Seven trucks are considered in this project. The load and spacing for the truck axles are given Table 1:

 

 

 

 

Table 1. Trucks axle configurations

Truck # Axle# 1 2 3 4 5 6 7 8 9 10 11 12 13
1 W 13 18.6 18.6 16.6 16.6 16.6              
  S   17 4.24 32 5 5              
2 W 18 19 19 19 19 19 19 19 19 19 19 19 19
  S   14.4 4.5 4.5 16.3 5 5 85.3 5 5 16 5 5
3 W 20 22 22 28.75 28.75 26.25 26.25 26.25 26.25        
  S   14.5 5 14.5 5.75 39.83 5.75 12.58 5.75        
4 W 12 20 20 19 19                
  S   19.58 4.1 38 4.58                
5 W 12 17 17 17 17                
  S   17.5 4.5 36 4.5                
6 W 18 18 18 18                  
  S   17.8 4.5 4.5                  
7 W 20.5 20.5 23 23 23                
  S   5 15 4 4                
W=Weight in Kips

S=Spacing in ft

 

 

Bridges

Six bridges are considered in this project.

 

Bridge #1

 

Bridge #2

 

 

Bridge #3

 

 

 

 

 

 

 

 

Bridge #4

 

 

 

Bridge #5

 

 

 

Bridge #6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Table 2. Maximum negative moment for the entire bridge (RISA Value)

  Truck # 1 2 3 4 5 6 7
Bridge#                
1

2

3

4

5

6

             
               
               
               
               
               

 

 

Table 3. Maximum positive moment for the entire bridge (RISA Value)

  Truck # 1 2 3 4 5 6 7
Bridge#                
1

2

3

4

5

6

             
               
               
               
               
               

 

 

Table 4. Maximum shear (positive or negative)

  Truck # 1 2 3 4 5 6 7
Bridge#                
1

2

3

4

5

6

             
               
               
               
               
               

 

 

 

2

 

75’

100’

50’50’50’

75’75’75’

100’100’100’

Spacing

Axle weight 12345

50’