For Problems 7.6 to 7.9, determine the development lengths required for the tension bar situations described using ACI Equation 25.4.2.3a (a) assuming Ktr = OK 0 and (b) using the calculated value of Ktr Kır. tr = Problem 7.8 Epoxy-coated bars in lightweight concrete, A, required = #3 stirrups @7 in. o.c. 3 #9 3 in. 3 in. 3 in. 3 in. 2.76 in.² As required = = 2.76 in.². 24 in. fy = 60,000 psi fe = 3000 psi 3 in.

QUESTION 1 The following beam is simply supported, the support at A is a pin and B is a roller. The concentrated load of 40 N is located in the center of the beam. What are the boundary conditions you would use to determine the equation of the elastic curve for the beam using the x coordinate that is valid for 0 sxSL? Provide the values you would us in the equations. 40 N IT Arial 3 (12pt) 三 ABC i nd Submit to save and submit. Click Save All Answers to save all answers.

Design the beam  to carry the load as shown in Figure.  Use rho max  with a strain in the tension bars equal to  0.004 and  in the design process use 60% of this rho max.    f’c= 21MPa  and fy=276MPa                                                                      What is the   Mu max  that is to be used in the  design? Determine the required base and effective depth  of the beam.  Round up your answers to the nearest 10mm  and use 2b=d Determine the most economical number of 20mm diameter bars required. Using the b and d from  letter  (b) determine the balanced As for the  beam.

Please solution only showing steps and include the dia