Handrail design with pretension in cables

Dear All,

I am designing Handrails which is resting over curb.

Please check attached Staad model.

Geometry: 3 vertical posts, 1 pipe(60, 3mm) at top, 9 rows of wires with 5kN pretension force.

Cable is tied at extreme posts only, through intermediate post its just passing.

Loads:

External loads,

1)DL

2)LL1: Point load on Pretensed cable

3)LL2: UDL on top Pipe

4)LL3: UDL on Pretensed cable

5)Temperature load: Variation in temperature 35°C

I am not getting appropriate result. Please help me with conducting such cable analysis.

Application of load due to temp change also need to be checked.

Earliest response would be appreciated. 

Thanks.

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