Foundations to Precast Marine Structures - Hawkswood Allsop 2009
Precast Structures
-
Upload
drm-investments-ltd -
Category
Design
-
view
723 -
download
0
description
Transcript of Precast Structures
![Page 1: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/1.jpg)
Precast Structures
![Page 2: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/2.jpg)
The earliest materials for construc1on was either stone or plaster, and most modern material in our opinion is precast concrete.
While concrete may appear unfinished, it can be finely finished and make most beau1ful buildings in the world.
![Page 3: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/3.jpg)
The tallest building that uses precast concrete is the Transamerica Pyramid in the San Francisco skyline, stands at 850 C. (260 m.).
![Page 4: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/4.jpg)
Another example is Park Tower in Chicago which rises 844 C. (257 m.), it is the second tallest building in the U.S., to be clad in precast concrete.
![Page 5: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/5.jpg)
Concrete is essen1ally a combina1on of stone chips, gravel, sand, water, various admixtures and cement. When water is added to cement, it causes a chemical reac1on that binds various other components of concrete together, and makes the product stronger than stone.
![Page 6: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/6.jpg)
Concrete is weak in tension hence its ability to crack. You can reinforce concrete with steel and let the steel take the tension. The end result is that you acquire stronger and versa1le building material.
![Page 7: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/7.jpg)
Precast concrete is used to save 1me, and there is no need to wait for lower floors of a structure, to cure before adding on higher levels. Panels can be cast ahead of 1me and then added when needed.
![Page 8: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/8.jpg)
Precas1ng concrete are produced in factory under controlled condi1ons such as temperature and humidity, because it can have a huge impact on concrete curing and strength of the panels.
![Page 9: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/9.jpg)
Intricate designs can be cast into precast panels, and various finish like stone or others can be added to the precast panels. While precast concrete oCen serves a very func1onal infrastructure, it makes modern comforts possible, adds beauty to func1on, and durability to our environment.
![Page 10: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/10.jpg)
Credits:Images in Slides 2,5,6,7,8 taken from www.freedigitalphotos.net
Special Credits to the Photo Ar2sts:
Peter Oresved
Exsodus
Xedos4
Vichaya Kiatying-‐Angsulee
Potowizard
Olovedog
Foto76
Njaj.
![Page 11: Precast Structures](https://reader031.fdocuments.us/reader031/viewer/2022012401/54c224c64a79593d458b46c0/html5/thumbnails/11.jpg)
Discover the possibilities...visit us today
www.DRMprefab.com