STRUCTURAL GLASS FACADES - USC School of Architecture

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maximum width of glass panel they can produce, at the maximum range limited by the width of the interlayer material. Refer to Section 2.4.2.10 for more information. 7.4.4.4 Step 4: Structural System Selection Supported System Types Figure 7.19 provides for selection of the structural system type, indicating those that are intended to be supported in the FaçadeDesigner system. The user selects a system type by clicking on one of the system icons or the link directly below. An option is given to exit to the StructureExplorer module to research the options. Once a structure type link is clicked, the user is redirected to the appropriate area of StructureDesigner, with the input screen preconfigured with the information drawn from FacadeDesigner. See Figure 7.11 as an example. Figure 7.19 FacadeDesigner: select structure type. 327
FaçadeDesigner is thus linked to StructureDesigner; however, StructureDesigner can be accessed directly without having to go through the FacadeDesigner process. If the user is familiar with the program and simply interested in developing some comparative preliminary performance analysis between systems, simple input data can be quickly entered through this direct method. (See StructureDesigner user interface forms in Figure 7.10 and Figure 7.11 above.) While the systems included in Figure 7.19 are intended to be fully supported by both FacadeDesigner and StructureDesigner, only two systems are supported in the current beta version; simple truss, cable truss, and flat cable net. 7.4.4.5 Step 5: Simplified Analysis Using StructureDesigner The input information collected by FaçadeDesigner is fed to StructureDesigner, which presents a user-interface form (see examples Figure 7.10and Figure 7.11) as a function of the system selection. Depending on the system selection, the user may be prompted for some additional input as indicated in Section 7.4.1 above. The user initiates the analysis by clicking on a button, and is provided with virtually instant results depending upon the system (the iterative dynamic relaxation method used on the open systems may take as much as a minute or two depending on the solution option selected and the deflection criterion). Depending on the results of the analysis, the user can modify the inputs from the userinterface and initiate a new analysis, repeating the process until a satisfactory solution is determined. Alternately, the user can close the analysis form, whereby the system-type selection form is presented, providing the opportunity to analyze a different system type. (Refer to the discussion of the various analysis forms in 7.4.1 above.) 328
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STRUCTURAL GLASS FACADES: A UNIQUE
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Dedication To my bride, Victoria Me
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One cannot help but burden others w
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6.4 Other Considerations in Glass S
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Table 6-6 Simple truss attributes.
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List of Figures Figure 1.1 Berlin C
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Figure 2.1 Tension rod rigging term
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Figure 2.28 Diagram of low-E functi
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Figure 6.12 New Beijing Poly Plaza;
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Figure 8.7 Glass and the glass manu
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Abstract This thesis formulates a h
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The push by leading architects for
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Barriers to Implementation As with
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The primary focus of this thesis wi
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Chapter 1 - Context 1.1 Structural
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facades as used herein refers to th
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The vaulted enclosure spans six tra
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1.2.2 Architectural Use of Glass It
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the great cathedrals of the period
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1.2.4 Glass as Building Skin Struct
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1.2.5 The Advent of the Curtain Wal
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structure is exposed, and thus beco
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necessarily the case, however. Nort
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and practitioners of this style, Wa
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In the same manner, Mies van der Ro
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1.3.2 Emergence of Structural Glass
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of glass are transparency, transluc
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Opacity is the opposite of transpar
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Willis Faber & Dumas Building Ipswi
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Figure 1.18 Louvre Pyramid by night
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Channel 4 Headquarters London; Rich
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presentations on the technology usu
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was not constructed until the 1950
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1.3.6 Practitioners The following e
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In a common development pattern, se
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from the yachting industry and used
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imitation reveals itself here; repe
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their lack of familiarity with it.
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Oil prices blowing by USD 100 per b
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Chapter 2 - Materials, Processes, a
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2.2.1 Structures and Strategies for
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2.2.2 Strongbacks and Glass Fins St
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Various geometries are possible, mo
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The application of trusses as part
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Figure 2.8 Truss identification: br
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A large cavity double-skin façade
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Fuller later went on to develop ten
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stabilized, or closed systems; stab
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2.2.9.2 Cable Net The addition of h
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Kieran Kelley-Sneed, a former profe
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these materials. High performance t
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or some similar process to produce
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Individual wires are fist twisted i
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2.3.3.2 Rods Design innovations are
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processing adding value in some man
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Table 2-4 Raw materials used in typ
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2.4.1.6 Laminated Glass Laminated g
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laminated panel comprised of a temp
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of the spacer, and the application
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applied by a process of vacuum (spu
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The illustration on the left shows
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2.4.1.11 Specifying Glass Specifyin
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to as annealed glass. Subsequent pr
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later) may exhibit worsened distort
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glass above). In fact, perhaps owin
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“Float glass thickness range from
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pieces of glass with a ½” air sp
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A measure of heat gain or heat loss
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Fortunately, glass producers again
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2.5.2 Stick Systems Most curtain wa
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The rainscreen principle has become
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with the outer glass surface. This
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2.5.9 Structural Glazing Structural
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frequently mechanically attaché th
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Alternatively, structural glass fac
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Chapter 3 - Building Products, Proc
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New strategies and project delivery
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costs are extremely low throughout
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3.1.3 Fabrication Fabrication requi
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A design/builder may provide instal
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3.2.1.2 Weaknesses of Design/Bid/Bu
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The budget can be developed along w
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3.2.3.1 Strengths of Design/Assist
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3.3.1.2 Develop an appropriate surf
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3.3.2.1 Representative Drawings Pla
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to related websites. In the case of
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4.2.1 Wizards A common type of desi
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On selection of an exterior color f
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website acts as a resource in suppo
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It is interesting to note that tool
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easons, many interactive tutorials
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“Human Resources In-house expert
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an overall architectural project,
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contextual imagery and a general de
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4.5 The Medium 4.5.1 Print Digital
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cost ranging from 25 to 50 dollars
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Figure 4.8 PowerPoint presentation
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5.1.4 It is conceivable to facilita
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Chapter 1 defines structural glass
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technology into the mainstream cons
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Chapter 6 - Categorization and Orga
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Table 6-2 Morphological categorizat
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6.1.2 Definition of Evaluation Crit
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measure of the relative ease of des
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Material Suppliers and Subcontracto
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to work. There is great opportunity
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eing extremely efficient on a stren
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much as 20-30 percent. Thus, it is
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Figure 6.2 Generalized behavior att
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Design Considerations The strongbac
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Constructability Fabrication: The c
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opportunities for exploring facetin
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Constructability Fabrication: If sp
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square-on-offset-square derived fro
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Glass system interface: Any glass s
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Constructability Fabrication: As di
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Morphology Vertical trusses are ali
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Durability and Maintenance: The con
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Table 6-7 Mast truss attributes. 6.
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problematic, as the structures are
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deflections relative to the façade
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Stability in the cable truss is pro
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Resources and Technology Maturity:
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Installation: Installation is signi
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Design issues: The determination of
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Gymnastics Arena fabric clad tenseg
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Design Considerations Aesthetics: G
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Pre-tension requirements: The cable
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Morphology Cable-hung structures ha
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Glass system interface: The interfa
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Structural Performance Spanning cap
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Structural Efficiency (strength to
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6.2.1 Categorization Scheme Table 6
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6.2.3 Class Comparisons: Applicatio
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Optical Distortion: The heat-treati
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Size Limitation: Viracon, the large
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objective; monolithic panels of low
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equipment. Depending upon these var
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deflections exceed this requirement
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consideration, and should be heat-s
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Transparency Relative transparency
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What follows is a consideration of
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Design issues: These systems must b
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Design Considerations Aesthetics: O
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Constructability Fabrication: All f
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Material Suppliers and Subcontracto
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then treated identically to point-f
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Accommodation of movement: As with
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Page 309 and 310: Chapter 7 - Tools, Resources, and C
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Page 315 and 316: 7.1.3 Vertical Span / Horizontal Sp
Page 317 and 318: Figure 7.3 FacadeDesigner.com homep
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Page 335 and 336: Figure 7.9 Dynamic relaxation veloc
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Page 341 and 342: Figure 7.12 FacadeDesigner: select
Page 343 and 344: Figure 7.13 FacadeDesigner: glass g
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Page 361 and 362: Figure 8.9 Each system type is pres
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Page 365 and 366: 8.2 Summary The background research
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Page 369 and 370: 9.1.1 Test Subjects Group A is comp
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Page 375 and 376: Table 9-4 Group B, 2nd test results
Page 377 and 378: Group A 1st Test Correct Respnses I
Page 379 and 380: y the learning program. This may re
Page 381 and 382: Group B 1st Test Correct Respnses I
Page 383 and 384: incorrect responses was 14% in the
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Page 387 and 388: Figure 9.10 Comparison of group A a
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Page 391 and 392: Question 10 Tempered glass is
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Question 14 Glass for point-fixed s
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Please circle one number only for e
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after they were given the presentat
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The average response here fell one
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inclusion in StructureDesigner, and
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V n = number of vertical grid modul
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Table 9-5 Cable net; omparison of t
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H m = horizontal module (ft) H n =
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Table 9-6 Simple truss; comparison
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Chapter 10 - Summary and Conclusion
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pyramid structure when the distribu
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The author is not a Web designer or
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10.2.2 FaçadeDesigner; the Methodo
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Tutorials An objective of FacadeDes
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and load conditions. A testing meth
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The need is for education and resou
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information. Better organization of
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institutions such as the Massachuse
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The important issue of sustainabili
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accommodate application needs from
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10.3.6 Diffusion of Innovation in A
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Bibliography Amato, I 1997. Stuff;
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Cambridge 2000 Gallery 2005. Willis
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Glass skyscraper n.d. Model of glas
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Nardella, M 2007. Interior of Garde
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Seagram Building n.d. Photograph of
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STRUCTURAL GLASS FACADES - USC School of Architecture

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