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The article quoted above by Rana, can more easily be downloaded in full from the following link:- http://peer.berkeley.edu/tbi/wp-content/uploads/2010/09/Poorly_Worded_Ill-Conceived_and_Unnecessary_Code_Provisions.pdf Regards.

First, do not apply loads to null lines. Always develop a habit to define a dummy frame sections of lets say 50x50mm and then model these lines for such loads. Second, you are having huge values.......huge values of what? displacement?

Another thought; 1. Vertical effects are not required in ASD analysis of UBC-97 but are required in ASCE 7-05. 2. Inclusion of vertical effects make no sense according to Gary R.. Searer; SEAOC adopted the concept of vertical effects for the sole purpose of adjusting the seismic design in line with 1.4D factor of dead loads in earlier codes. This factor was changed to 1.2D due to better approximation of dead loads in the new codes. So in order to rule out the discrepancies vertical effects were introduced. "Certain unintended consequences of this action were only discovered after the code was published"... For example one design that was safe in ASD suddenly became unsafe in strength design combinations. In near-fault areas of Ca=0.6, resistance to overturning decreases by a huge margin to 60% of dead loads. The author explains that; With the exception of a single story structure, ignoring live load totally in the resisting load combination is very very conservative. In order to accelerate portions of the building rapidly upward, the upward forces must exceed gravity by a large amount, thus resisting weight is significantly greater than just 1.0 dead load. The problem became more complicated with the inclusion of vertical effects in ASD in ASCE 7-05 in a try to align the ASD design with strength design as far as vertical effects were concerned. He recommends using 1.2D +- E + f1L + f2S or 0.9D +- Eh. Refer to: 2006 Annual Meeting of the Los Angeles Tall Buildings Structural Design Council Alternative Procedures for Design of Tall Buildings POORLY WORDED, ILL-CONCEIVED, AND UNNECESSARY CODE PROVISIONS Gary R. Searer, S.E. Consultant Wiss, Janney, Elstner Associates, Inc https://www.scribd.com/doc/285836953/Poorly-Worded-Ill-Conceived-and-Unnecessary-Code-Provisions

I found this picture today while looking through archives. The Ring is visible on the little finger. Wear it all the time.