To provide a high-tensile strength steel weld joint having excellent resistivity to the generation of ductile cracks from a weld zone, particularly, from a weld toe, and suitably used for the field of ground structures such as bridges and buildings subjected to an earthquake load. 溶接部、なかでも溶接止端部からの延性き裂発生に対する抵抗性に優れ、地震負荷を受ける橋梁や建築などの地上構造物分野に用いて好適な高張力鋼溶接継手の提供。 - 特許庁