Page 22 - UL_Report On_Part 1
P. 22

b. Structural details


                                                                                                   The  test facility consists of steel frame with composite deck slab
                                                                                                   provided at each  floor level.  Brick masonry  walls are  provided as              The building ghas  three sides on which different
                                                                                                   partition walls between  the compartments. Figure 7 and Figure 8                   façade can be tested. Two sides are designed to test
                                                                                                   show structural details along sections A-A and B-B marked in Figure 6.             external fire spread mechanisms (left face visible in
                                                                                                                                                                                      Image 1) while  the  third side is meant for  testing
                                                                                                                                                                                      internal fire spread mechanism (front face in Image
                                                                                                                                                                                      1). Figure 3 and Figure 4 show elevation views of the
                                                                                                                                                                                      faces corresponding  to  testing  external fire spread
                                                                                                                                                                                      mechanism with  typical dimensions of façade
                                                                                                                                                                                      system. Figure 3 specifically depicts  the details of
                                                                                                                                                                                      façade used in two of the full-scale fire tests (60%
                                                                                                                                                                                      glass and 40% ACP) while Figure 4 specifically
                                                                                                                                                                                      depicts  the details of façade used in one fire  test
                                                                                                                                                                                      (60% glass and 40% MDF).
                                                                                                                                                                                      Figure 5 shows  the elevation view  of  the  test face
                                                                                                                                                                                      designed for testing for internal fire spread. There is a
                                                                                                                                                                                      notable difference between this face and the other
                                                                                                                                                                                      two faces in  the use of masonry panels in  the
                                                                                                                                                                                      spandrel area. This is to ensure that the spandrel area
                                                                                                                                                                                      is wide enough and non-combustible so  that  the
                                                                                                                                                                                      chances of flames externally propagating to the next
                                                                                                                                                                                      floor are minimized and failure of  the inter-storey
                                                                                                                                                                                      fire stop  material are maximized. Typical floor plan
                                                                                                                                                                                      of all the three storeys is shown in Figure 6.













                          Figure 7: Structural details across Section A-A                                      Figure 8: Structural details along Section B-B
   17   18   19   20   21   22   23   24   25   26   27