CIVIL 3811 Tutorial Solutions - Week 1 PDF

The University of Sydney School of Civil Engineering CIVIL 3811/9811/8811 – The tutorial guide answer – week 1 Question 1 The option is to use either 1) composite trusses or 2) fabricated tapered beams for the girders in the composite sections. Both solut...

The University of Sydney School of Civil Engineering CIVIL 3811/9811/8811 – The tutorial guide answer – week 1 Question 1 The option is to use either 1) composite trusses or 2) fabricated tapered beams for the girders in the composite sections. Both solutions can increase the second moment of area of the composite cross-section, helping to meet both ultimate and serviceability requirements. However, these solutions might be costly and labour-intensive, requiring access to highly skilled technicians for installation and fixing of the new structural composite systems. Question 2 Controlling floor vibration is classified as part of the serviceability requirements. To address this, we can either increase the overall stiffness of the composite section (e.g., by increasing the slab thickness or the stiffness of the steel girders) or incorporate damping into the composite floor systems. Utilizing viscoelastic damping materials (VDM) can effectively reduce floor vibrations. Question 3 A more cost-effective and practical solution is a composite connection between the steel beam (UB) or the Universal Columns (UC) section. A further explanation is provided in a separate file. Question 4 In composite floor systems, an additional layer of steel reinforcement (steel mesh) can be placed on top of the concrete slab in areas where the column and beam are connected, particularly in the hogging regions of the composite beam floor systems.