Topic : Common Structural Forms for High-rise Buildings in Hong Kong
Topic : Common Structural Forms for High-rise Buildings in Hong Kong Topic : Common Structural Forms for High-rise Buildings in Hong Kong
Features of structural steel constructionStructural characteristics1. Steel has lower dead load (unless encased in concrete)2. Steel frame can easily to have the layout changed to suitnew design than concrete, especially requiring alterationafter completion of the building.3. Easily accommodate building movements for steel is arelatively flexible material and have greater adaptability totake up strain and deformation4. However, it is weaker in fire resistance for steel will losestrength and deform serious at higher temperature (at 600oCor above). This can be improved by applying fire resistantplaster30
Features of structural steel constructionStructural characteristics (continue)5. Beams usually shallower in size than for concrete Beams6. Sections in various convenient type and size thuseconomical in design and uses – refer to standard steelsections7. Produce larger deflection & deformation (Bend) underwind – this will cause uncomfort to users of building8. Steel has higher thermal expansion value9. Rusting or corrosion problems – very strict anti-corrosiontreatment has to be appliedFeatures of structural steel construction (cont.)Construction aspects1. Quicker to erect and can be prepared offsite – inworkshop/factory environment with good production andquality control2. Erection on site less affected by climatic conditions –without placing of concrete3. Longer and highly coordinated planning – require long timeto make structural design, fabrication and delivery4. Higher requirement in the control of dimensional accuracybefore and during construction (in fabrication and inerection31
- Page 1 and 2: Topic :Common Structural Forms forH
- Page 3 and 4: Example oflayout designevolution fr
- Page 5 and 6: Structural forms suitable for build
- Page 7 and 8: Structures inload-bearing wallwith
- Page 9 and 10: Various layout arrangementfor build
- Page 11 and 12: Structural forms suitable for build
- Page 13 and 14: Structural forms suitable for build
- Page 15 and 16: Examples of composite structures15
- Page 17 and 18: The IFC 2Complicated stiffeningelem
- Page 19 and 20: Complicated stiffeningelements inco
- Page 21 and 22: Construction of in-situ RC building
- Page 23 and 24: Construction of in-situ RC building
- Page 25 and 26: Advan. . features of framed structu
- Page 27 and 28: Features of In-situ concrete frame
- Page 29: Features of in-situ RC frame constr
- Page 33 and 34: Features of structural steel constr
- Page 35 and 36: Features of structural steel constr
- Page 37 and 38: Features of structural steel constr
- Page 39: Features of structural steel constr
Features of structural steel construction<strong>Structural</strong> characteristics (cont<strong>in</strong>ue)5. Beams usually shallower <strong>in</strong> size than <strong>for</strong> concrete Beams6. Sections <strong>in</strong> various convenient type and size thuseconomical <strong>in</strong> design and uses – refer to standard steelsections7. Produce larger deflection & de<strong>for</strong>mation (Bend) underw<strong>in</strong>d – this will cause uncom<strong>for</strong>t to users of build<strong>in</strong>g8. Steel has higher thermal expansion value9. Rust<strong>in</strong>g or corrosion problems – very strict anti-corrosiontreatment has to be appliedFeatures of structural steel construction (cont.)Construction aspects1. Quicker to erect and can be prepared offsite – <strong>in</strong>workshop/factory environment with good production andquality control2. Erection on site less affected by climatic conditions –without plac<strong>in</strong>g of concrete3. Longer and highly coord<strong>in</strong>ated plann<strong>in</strong>g – require long timeto make structural design, fabrication and delivery4. <strong>High</strong>er requirement <strong>in</strong> the control of dimensional accuracybe<strong>for</strong>e and dur<strong>in</strong>g construction (<strong>in</strong> fabrication and <strong>in</strong>erection31
Change language