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Chapter Excavations and liftings - part • Construction methods and management ©2015 Đỗ Thị Xuân Lan , GVC Ths ©2015 Đỗ Thị Xuân Lan , GVC Ths CRANES • Chapter Excavations and liftings ©2015 Đỗ Thị Xuân Lan , GVC Ths ©2010 Cranes of today Source: Bernold, 2013 ©2015 Đỗ Thị Xuân Lan , GVC Ths Cranes of today Source: Bernold, 2013 ©2015 Đỗ Thị Xuân Lan , GVC Ths Crane Types Cranes • Mobile cranes: Crawler, telescoping boom Mobile truck-mounted, lattice boom Tower cranes cranes truck-mounted, rough terrain, allterrain • Tower cranes: top-slewing and bottom slewing, horizontal jib and luffing jib, fixed tower crane, travelling tower crane and climbing tower crane ©2015 Đỗ Thị Xuân Lan , GVC Ths Telescoping boom crawler crane ©2015 Đỗ Thị Xuân Lan , GVC Ths Lattice boom crawler crane ©2015 Đỗ Thị Xuân Lan , GVC Ths Telescoping boom truck-mounted crane ©2015 Đỗ Thị Xuân Lan , GVC Ths Rough terrain crane - with jib Cần trục bánh hơi, có mỏ cần ©2015 Đỗ Thị Xuân Lan , GVC Ths 10 ©2015 Đỗ Thị Xuân Lan , GVC Ths 19 Tower cranes ©2015 Đỗ Thị Xuân Lan , GVC Ths 20 Horizontal jib and luffing jib tower crane Luffing jib ©2015 Đỗ Thị Xuân Lan , GVC Ths Horizontal jib 21 Bottom slewing cranes ©2015 Đỗ Thị Xuân Lan , GVC Ths 22 Top slewing cranes Tower crane with attachments to the building structure source: HCMUT student ©2015 Đỗ Thị Xuân Lan , GVC Ths 23 Climbing crane ©2015 Đỗ Thị Xuân Lan , GVC Ths 24 Climbing tower crane hydraulic jacks Lifting frames (colllar) Supporting beam ©2015 Đỗ Thị Xuân Lan , GVC Ths 25 Erection of a fixed tower crane • To cast the 1st mast section in a firm concrete base • The tower of crane climbs up by having additional mast sections by using a mobile crane to lift the mast section on top of the existing tower • Connect jib sections by using a mobile crane ©2015 Đỗ Thị Xuân Lan , GVC Ths 26 Erection of climbing tower crane • An internal climbing crane is first anchored to a concrete base and erected the same way to a manageable height • When the building reach to the height of about four storeys, lifting frames are fixed to the floors around the mast of the crane • The tower may be hoisted to a higher level by hydraulic jacks ©2015 Đỗ Thị Xuân Lan , GVC Ths 27 Climbing tower crane ©2015 Đỗ Thị Xuân Lan , GVC Ths source: Chew, 2009 28 Climbing tower crane ©2015 Đỗ Thị Xuân Lan , GVC Ths source: Chew, 2009 29 Climbing tower crane ©2015 Đỗ Thị Xuân Lan , GVC Ths source: Chew, 2009 30 ©2015 Đỗ Thị Xuân Lan , GVC Ths ©2015 Đỗ Thị Xuân Lan , GVC Ths 32 Using tower crane for concrete transportation – The minimum necessary lift height • H = hct + hat + hck + ht • hct : distance from the crane station level to the concrete placing position (erection level) • hat : space for dumping (erecting or carrying structural components), specified by safety regulations • hck : height of the concrete bucket (structural component) ht : height of handles (grabbing â2015 Đỗ Thị Xuân Lan , GVC Ths 33 ... Xuân Lan , GVC Ths ©2010 Cranes of today Source: Bernold, 20 13 ©2015 Đỗ Thị Xuân Lan , GVC Ths Cranes of today Source: Bernold, 20 13 ©2015 Đỗ Thị Xuân Lan , GVC Ths Crane Types Cranes • Mobile... crane ©2015 Đỗ Thị Xuân Lan , GVC Ths 12 Working ranges of a crane ©2015 Đỗ Thị Xuân Lan , GVC Ths 13 Working ranges of a crane ©2015 Đỗ Thị Xuân Lan , GVC Ths 14 ©2015 Đỗ Thị Xuân Lan , GVC Ths 15... with attachments to the building structure source: HCMUT student ©2015 Đỗ Thị Xuân Lan , GVC Ths 23 Climbing crane ©2015 Đỗ Thị Xuân Lan , GVC Ths 24 Climbing tower crane hydraulic jacks Lifting