（1）原材料及成品进场应提供质量合格证明文件、中文标志及出厂检验报告等。

(1) the entry of raw materials and finished products shall provide quality certificate documents, Chinese marks and factory inspection reports.

（2）钢材

(2) steel

1）钢材、钢铸件品种、规格、性能等应符合现行国家产品标准和设计要求。进口钢材产品的质量应符合设计和合同规定标准的要求并附有商检证。

Steel, steel castings, specifications and performances should meet the requirements of national product standards and design. The quality of imported steel products shall conform to the requirements of the design and contract stipulations and be attached to the inspection certificate.

2）对属于下列情况之一的钢材，应进行抽样复验：

For the steel that belongs to one of the following conditions, the sample reinspection shall be conducted:

a.国外进口钢材；

A. foreign imports of steel;

b.钢材混批；

B. the steel is mixed up.

c.板厚等于或大于40mm，且设计有Z向性能要求的厚板；

The thickness of the plate is equal to or greater than 40mm, and it is designed to have a thick plate for performance.

d.建筑结构安全等级为一级，大跨度钢结构中主要受力构件所采用的钢材；

The steel used by the main force member in the large span steel structure is the grade level of the construction safety grade.

e.设计有复验要求的钢材；

Design of steel that is required for reinspection.

f.对质量有疑义的钢材。

Steel that is suspect in quality.

其复验结果应符合现行国家产品标准和设计要求

The result of the reinspection shall conform to the current national product standards and design requirements

（3）焊接材料

(3) welding material

1）焊接材料品种、规格、性能等应符合现行国家产品标准和设计要求。

The variety, specification and performance of welding materials should meet the requirements of national product standards and design.

2）重要钢结构采用的焊接材料应进行抽样复验，复验结果应符合现行国家产品标准和设计要求。

The welding materials used in important steel structures shall be sampled and tested, and the result of the reinspection shall conform to the current national product standards and design requirements.

（4）连接用紧固标准件

(4) fastening standards for connection

1）钢结构连接用高强度大六角头螺栓连接副、扭剪型高强度螺栓连接副、钢网架用高强度螺栓、普通螺栓、铆钉、自攻钉、拉铆钉、射钉、锚栓（机械型和化学试剂型）、地脚锚栓等紧固标准件及螺母、垫圈等标准配件，其品种、规格、性能等应符合现行国家产品标准和设计要求。高强度大六角头螺栓连接副和扭剪型高强度螺栓连接副出厂时应分别随箱带有扭矩系数和紧固轴力（预拉力）的检验报告。

1) steel structure connection with high strength large hexagon head bolts connection vice, torsional shear type high strength bolt connection, steel frame with high strength bolts, ordinary bolts, rivets, self tapping screw, rivet, nail, bolt type (mechanical and chemical reagents), anchor bolt fastening standard parts and standard nut, washer and other accessories, the varieties, specifications, performance and other products should be consistent with existing national standards and design requirements. High strength large hexagon head bolts connection vice and torsional shear type high strength bolt connection factory should be tighten with the box with the torque coefficient and axial force (strong) inspection report.

2）高强度大六角头螺栓连接副应按现行国家标准《钢结构工程施工质量验收规范》GB50205的规定复验其扭矩系数，其检验结果应符合规定。复验用螺栓应在施工现场待安装的螺栓批中随机抽取，每批应按规格抽取8套连接副进行复验。

2) high strength large hexagon head bolts connection vice should according to the current national standard "construction quality acceptance of steel structure engineering GB50205 reinspect the torque coefficient, the inspection result should comply with the rules. The reinspection bolts shall be drawn at random in the bolt batch installed at the construction site, and each batch shall be reinspected at the specification of eight sets of pairs.