![]() ![]() This command now enables the user to change the load case factors usedto compute Beta(d). The Unbraced Factors command is changed to Factors (under Slenderness). Anyuser-input bars are saved with the input data file.ģ. This command allowsthe user to customize the reinforcing bars that the program uses. ![]() A new command, Options/Rebar Database, is added. These factorsare now input using the Slenderness/Factors command (see 3 below).Ģ. ![]() Also, the Dead and Live load factors used to compute Beta(d) for slender columnsare now independent of the defined load combinations. All list boxes (Factored Loads, Service Loads, Axial Loads, and Irregular Reinforcement) caused a crash if the maximum number of itemsin a list box was entered and an attempt to combination to combination. If more than 15 factored loads are input using the Loads/Factoredcommand, the computed capacities table lists garbled results after the15th load and printing the results file causes a crash.ħ. A crash occured if a user attempts to input a load value that has morethan 5 digits.Ħ. For biaxial runs, the interpolation method to obtain the interaction diagrams yielded incorrect results for columns with very large(or very small) width/depth ratio.ĥ. Very small non-zero moment causes 'Cannot Converge.' error.Ĥ. Divide by zero error when trying to design a section that cannotbe designed because of bar spacing restrictions.ģ. Trying to start IRRCOL after executing a DOS program or DOS session in Windows gave a 'Cannot Transfer Data to IRRCOL' message and the user hadto restart Windows to remedy the situation.Ģ. For this reason, a designer should check a column for both non-sway and sway conditions.1. In many cases, a column is not slender by considering now-sway frame but very slender by considering sway frame. If column length increases from one particular stage to another then steel ratio increases. Column height increase on and beyond 5m is substantially vulnerable for sway effect. Result shows that corner and edge column has most slenderness effect. Parametric study is achieved by considering: four different length of column range from 3m to 6m using an increment of 1m and three slab panel's size 4.5m x 4.5m, 6m x 6m and 7.5m x 7.5m with three panels in both ways. First the methods describe in the Indian standard code for designing slender column is reviewed manually for one structural model and then FEM models are generated by using ETABS software. corner, edge and inner columns) in 12 flat-plate RCC structural models. This study is conducted on 36 columns at three locations (i.e. The research carries out a parametric study to analyse slenderness effect in column design of reinforced cement concrete (RCC) flat-plate structures based on Indian standard (IS) codes namely, IS 456: 2000 and IS 875. ![]()
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |