High-strength steel plate for Q500GJE quenched and tempered building structure and manufacturing method of high-strength steel plate

The invention relates to a high-strength steel plate for a Q500GJE quenched and tempered building structure. The high-strength steel plate comprises the following chemical components: less than or equal to 0.14% of C, 0.20%-0.50% of Si, 1.10%-1.60% of Mn, less than or equal to 0.015% of P, less than or equal to 0.005% of S, less than or equal to 0.20% of Cr, less than or equal to 0.30% of Mo, lessthan or equal to 0.90% of Ni+Mo, less than or equal to 0.30% of Cu, 0.02%-0.04% of Al, less than or equal to 0.20% of V+Nb+Ti, less than or equal to 0.006% of N, and the balance of Fe and inevitableimpurity elements, wherein the carbon equivalent is less than or equal to 0.52%. The yield strength is 545-585 MPa, the tensile strength is 670-715 MPa, and the elongation is larger than or equal to 18.5%. A high-strength steel product for a building, with the yielding-to-tensile ratio less than or equal to 0.84, and the V-type impact energy higher than or equal to 110 J at -40 DEG C, is of a ferrite+pearlite+bainite struc