Complete steel structures and fabricated structural steel elements required for civil engineering construction works are manufactured at ITD's structural steel workshops, one at Samut Prakarn on the Chao Praya River 30 km to the south of Bangkok, and the other at Wihan Daeng, 110 km north of Bangkok. Together the fabrication capacity is 30,000 tonnes per annum.

• High-rise steel building structures
• Industrial plants and factories
• Process plants and oil refineries
• Power plants
• Sports stadiums
• Steel flyovers and bridges
• Temporary steel structures for civil works, eg formwork, viaduct launching trusses and girders
• Tank farms for the petroleum and chemical industry
• Vats for the beer and wine industries
• Hydraulic structures, eg water gates, pit liners, draft tubes
• High voltage transmission towers
• Port container cranes
• Marine berth fenders

The structural steel workshops provide a complete service from fabrication drawings through material procurement to completed fabrication, non-destructive testing, protective coating and erection on site. The workshops are staffed with more than 70 engineers and 700 skilled support staff. Modern precision Computer Numerical Control machines ensure high quality accurate production for prefabricated structures.

Gymnasium for 13th Asian Games

(August 1996 - May 1998)

7 gymnasiums for basketball, table tennis, martial arts, badminton, sepak takraw, fencing and handball with a total area of 64,000 m2and a seating capacity for 35,000 spectators.

Experience

• Structural Steel for Boilers of 2x700 MW Ratchaburi Power Plant ( 1998) 

Fabrication and delivery of structural steel frames, including four complete pieces of Top Girders, to be used to support the boiler structure of over 6,000 t for the two 700 MW units of the Ratchaburi Power Plant. Each Top Girder piece weighs 80 t and is 6 m high, 1.2 m wide and 20 m long. 

• Asian Games Stadium (1997) 

Fabrication and erection of 6,000 t of steel structure for the stadiums of the 13th Asian Games to be held in Bangkok December 1998. 

• Steel Work for Bangkok Mass Transit System - Station Roofs and Stairs (1996 -1998) 

Fabrication and erection of 18,000 t of roof and stair steel structures for the stations of Bangkok Mass Transit System. 

• Thainox Steel Cold Rolling Mill, Tranox Phase 2 (January 1996 - October 1997) 

Design and construction of a 2,200 t steel structure for an extension of a stainless steel cold rolling mill. 

• Steel Work for ETA Ramps (1996) 

Fabrication and erection of 14,000 t of steel flyovers to improve various entrance and exit ramps of existing expressways for the Expressways and Rapid Transit Authority of Thailand. 

• Empire Tower (September 1995 - August 1997) 

Erection of a 63 storey (plus 6 basement levels) of a steel framed office building with a total service area of 271,000 m2 using 25,500 t steel. 

• Mae Moh Power Plant Units 12 & 13 Flue Gas Desulfurization Plant (January 1994 - September 1995) 

Erection of 4,100 t of steelwork for the flue gas desulfurization plant. 

• Saraburi Cement Plant (October 1990 - April 1992) 

Fabrication and erection of 3,100 t of structural steel for the factory steel frame and 920 t for the rotary kiln for the Saraburi Cement factory. 

• Mae Moh Power Plant Units 8 to 13 (1986 - 1992) 

Fabrication and delivery of steel work for: 

• Gas and air ducts for the boiler building 9,300 t. 
• Main cooling water piping 1,400 t. 
• Cooling water system 5,600 t. 
• Structural steel framework for the turbine buildings 17,600 t. 

• Rama 9 Cable Stayed Bridge (October 1984 - July 1987) 

 Fabrication and erection of the first cable stayed bridge in Thailand with a total weight of steel of 18,000 t. 

•ITD-Wihan Daeng Fabrication Shop 

Fabrication facilities equipped with modern precision Computer Numerical Control machines to ensure high quality accurate production for prefabricated steel works.