Giant Segmental Box Culverts (GSBC) bridge the gap between standard box and pipe culverts, and conventional bridge applications
 
ADVANTAGES
  1. Lower cost of installation compared to cast-in-place twin cell Vehicular Box Culvert.
  2. Reduced construction time, minimised traffic obstructions.
  3. Ease of transportation, handling and installation.
  4. Smaller cranage capacity.
  5. Comes in manageable unit weight (4-9 tons).
  6. Provides better flaw area per concrete material used.
  7. Very stable structure during handling and erection stages (aspect ratio, Height/Width � 3).
  8. Site progress less affected by adverse weather conditions.
  9. Factory produced to stringent standards
  10. Without a central wall, allows free flow which does not collect debris.
 
APPLICATIONS
Drainage channels, vehicular and pedestrian underpasses, highways, bridges, river crossings, utility tunnels, subway lines, railway crossings, canals, garages, motorcycle underpasses, etc.
 
Hydraulic Considerations

GSBC is able to accommodate a very large waterway area within a single cell. With its huge hydraulic capacity, it can replace normal multicell structures with a single cell structure.

Some applications areas :

  1. Drainage channels
  2. Canals
  3. River crossings
 

Structural Considerations

The versatility of the GSBC technology is showcased here as structures that can be constructed as:

  1. Vehicular and pedestrian underpasses
  2. Highway bridges
  3. Utility tunnels
  4. Subway lines
  5. Garages
  6. Motocycles underpasses
  7. Railway crossings

GSBC therefore offers varied applications in terms of size, strength, flexibility and offers easy and quick construction.
 

TYPES AND SIZES

  1. Hume's GSBC units are available in nominal widths of 4.2 meters and 4.8 meters with heights from 2.4 meters to 4.2 meters and 4.8 meters respectively, at intervals of 600mm and lengths of 1 meter.
  2. Hume's GSBC units come with a "specially designed" Dry Weather Flow, which has a gentle slope to the middle of the GSBC invert base.
 

HANDLING & INSTALLATION 
Lifting holes (weep holes) are provided at the box culvert wall. It is recommended that a spreader beam be used when slinging the invert to minimise handling stresses.
 
TRANSPORT
Hume's GSBC, units can be easily transported to sites with proper handling equipment.
 
 
DRAINAGES | Page 1 | Page 2 | Page 3
 
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HUME CONCRETE MARKETING SDN BHD (8411-T)
Level 2, Bangunan Pan Global,
No. 1A, Jalan Tandang,
P.O.Box 21, 46700
Petaling Jaya, Selangor.
Hot-line: (603) 7785 5282
Tel: (603) 7783 3068
Fax: (603) 7785 1823
E-mail: Adam Hussein (HIMB-PJ)