Oriental Shiraishi Factory Guide

Promote thorough standardization and quality management, and obtain ISO 9001 and 14001 certification!

last updated Feb 27, 2019

SLJ Slab - For Port Piers

Widely adopted for precast slabs of highway bridges that require fatigue durability under harsh conditions!

last updated Mar 22, 2019

Pier Relief Method (Bending Reinforcement Specification)

We will improve seismic performance! A bending reinforcement method that can be implemented even under conditions where excavation is not possible.

last updated Mar 22, 2019

Estimation method for residual prestress using core cutting.

For the maintenance and management of existing PC structures! It eliminates the effects of drying shrinkage and creep strain.

last updated Mar 22, 2019

SSP construction method

Improving the seismic performance of pile bent piers! It is economically advantageous as large-scale temporary structures are not required.

last updated Mar 22, 2019

RSP lift-up construction method

Construction is possible even in narrow spaces such as under railway viaducts! Steel plate wrapping vertical reinforcement method using lifting.

last updated Mar 22, 2019

NAPP anchor method

Using hollow PC steel rods! Introducing prestress to connect existing and new concrete.

last updated Mar 20, 2019

High Corrosion-Resistant Steel Inspection Route 'JB-HABIS'

Safety confirmed through testing in accordance with NEXCO testing methods! Inspection road for bridges by Nihon Koryo Co., Ltd.

last updated Jun 27, 2019

IH (Induction Heating) Device System

Introduction to IH-type coating removal using IH (induction heating) device systems.

last updated Jan 23, 2020

STEP method

In cases of strict restrictions on airspace! Construction methods with fewer constraints such as underfloor space and machinery.

last updated Jul 23, 2019

Grout Re-injection Method for PC Structures 'PC-Rev Method'

Re-inject grout to improve the durability of structures! Accurate injection management with high-precision cavity volume understanding!

last updated Jul 23, 2019

Waterway tunnel reinforcement method (strand sheet)

The definitive version of reinforcement for the inner surface of water channels. This is a reinforcement method that adheres strand sheets using resin materials applicable to concrete water channels in harsh wet environments.

last updated Feb 07, 2022

SP clamp method: Replacement method for PC composite girders with precast PC slabs.

Replace the PC composite girder's floor slab with a precast PC floor slab. Quick construction! The reliability of ensuring durability performance will improve!

last updated May 10, 2023