Answer: The net force in every bolt is 44.9 kip
Explanation:
Given that;
External load applied = 245 kip
number of bolts n = 10
External Load shared by each bolt (P_E) = 245/10 = 24.5 kip
spring constant of the bolt Kb = 0.4 Mlb/in
spring constant of members Kc = 1.6 Mlb/in
combined stiffness factor C = Kb / (kb+kc) = 0.4 / ( 0.4 + 1.6)  = 0.4 / 2 = 0.2 Mlb/in
Initial pre load Pi = 40 kip
now for Bolts; both pre load Pi and external load P_E are tensile in nature, therefore we add both of them
External Load on each bolt P_Eb = C × PE = 0.2 × 24.5 = 4.9 kip
So Total net Force on each bolt Fb = P_Eb + Pi 
Fb = 4.9 kip + 40 kip 
Fb = 44.9 kip
Therefore the net force in every bolt is 44.9 kip
 
        
             
        
        
        
The answer is number 2) Increase the resistance of the concrete to freeze-thaw damage.
 
        
             
        
        
        
Answer:
please give brainliest my brother just got the corona virus
Explanation:
this is my brothers account he wants to get 5 brainliest
 
        
             
        
        
        
Answer:
Detailed working is shown
Explanation:
The attached file shows a detailed step by step calculation..
 
        
             
        
        
        
Answer: C. Problem identification, solution design, implementation, evaluation.
Explanation: