Challenge to social subject aluminium wire beam will change the car and its future | Sumitomo Electric Industries, Ltd.

The construction of new name god highway (arbutus viaduct)
From 32 mobile operating car construction scene at the same time, can feel the tension in the construction site every minute counts.

Road network constitute the basis of economic activities and social life.Japan's high economic growth rapidly advancing the construction of the highway.

Now, in addition to aging roads need to trim, as a sustainable social infrastructure of the new development demand is also increasing.

Because Japan highway cross the mountains and rivers, etc., therefore need to bridge, bridge construction now existing in various social issues.Security since need not verbosity, how to use ShengLiHua, provincial humanization and shorten the construction period of long life and how to improve productivity, reduce environmental load, etc., and past in the infrastructure construction of subject completely different new topics are piling up.

Sumitomo electric industries in the process of bridge construction, to push helps the measures to solve these issues.

It is provided with high strength and high durability of high function "PC" steel.

An integral and long, big bridge construction
Unknown "PC" steel strength

PC is used in PC (prestressed concrete) steel material, it is both high tension and good toughness toughness (material) of high strength steel.Although common concrete high compressive strength, but has the problem of weak resistance to tension.

Solve this topic is extremely effective material with reinforced 5 ~ 7 times the strength of PC steel, now grew up in concrete bridge construction in almost all USES the PC.PC structures, often through hydraulic jack for PC steel to pull.This is a kind of PC steel retraction force pass through to the way to prevent cracks of concrete, in order to ensure the strength of the structure and the principle of integrity.