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Dear Sir, The option of selection any element by its UNIQUE NAME is available in ETABS v13 but unfortunately we don't have this selection option in ETABS v9. Display the meshing from set building view option and check the irrigular meshed area by right clicking on them for the effected area. All the WARNINGS are shown in the last Analysis Log with the global co-ordinates of the effected element. From those co-ordinates the area creating problem can be easily found. Thanks

Dear Uzair Sb, The error is in slab element 22836. You can find that element by looking at respective story level. For that, you will need to turn on the Area Labels and use the X, Y and Z Coordinates provided in the error log. Solution to the problem is to either re-mesh the area manually for that part or to do the load distribution manually and directly apply load at beams and just delete the slab. Please let us know if the problem has been fixed or otherwise. Thanks.

Salam, just remesh the stucture with different max element size so that problematic element get relocated. Hope this quick fix would solve the problem. Otherwise post the model for probing in. Regards tachauhan

AA. Some progress has been made in this connection and snow fall data regarding Murree area has been collected from Met Department. According to the received information, only 'Number of Days of Snow Fall' data is available for the years from 1973-2004. However, daily recorded snow fall thickness in inches is available for the years from 2005-2016. According to this data, calculated maximum snow fall in one go of 4'-9" was observed in Murree during Feb 2005, whereas 2nd highest snow fall of 4'-1" was observed in Jan 2005. Images of year wise snow fall record from 2005 to 2016 are attached below, for the benefit of all. Regards.

Picked up columns are different from normal RC columns in that at their lowest point, these are located on (picked up from) top of a beam at some upper story of the building & transfer the load to the supporting beam, instead of trasferring it to a lower column directly. In the following image (showing elevation view of an ETABS model, where vertical purple lines represent columns, and horizontal lines represent beams), second column from left, is a picked up column. It is starting from top of a beam at first floor level, unlike all other columns stsrting from the 'base' i.e., ground level.

Not true. It depends on how you are designing. Also depends on the stiffness of column as well as the supporting slab. If the supporting slab has not much stiffness, the pickup columns act like hanging threads carrying no load at all.