With the continuous development of modern economy, steel structure engineering has been widely applied in engineering field due to its superiority in construction speed, short cycle, high strength, prefabrication, installation and high rise and large span. In the past, a lot of reinforced concrete structures and prestressed concrete structures were used in our country. The field engineers and technicians lack the experience of steel structure construction. The quality of construction directly affects the safety of engineering structures. Therefore, the quality problem of steel structure is attracting more and more attention. Therefore, strengthening the quality control of steel structure construction is of great practical significance and necessity.

1、施工准备

1. Construction preparation

施工准备是建设施工创造必须条件，认真、细致、深入地做好施工准备工作，对充分发挥人的积极因素，合理组织人力、物力，加快工程进度，提供施工质量，节约投资和材料，对顺利完成钢结构建设任务起着重要的作用。

The construction preparation is to create conditions for construction, carefully and thoroughly make preparation for construction work, to make full use of the positive factors, the rational organization of human and material resources, speed up the progress of the project, to provide the quality of construction, saving investment and material, to successfully complete the task of building steel structure plays an important role.

1.1认真做好施工图纸的会审和交底工作点这免费下载施工技术资料

1.1 do a good job of construction drawing and construction work of the construction of technical data for free download

图纸是工程施工的依据，工程项目技术负责人应组织有关技术人员对图纸进行分工审阅和消化，其目的一是使施工单位和各参建单位熟悉设计图纸，了解工程特点和设计意图，找出需要解决的技术难题，并制定解决方案；二是为了解决图纸中存在的问题，减少图纸的差错，将图纸中的质量隐患消灭在萌芽之中。同时做好技术交底，做好施工和设计的结合、做好钢结构吊装与土建施工、钢结构和混凝土构预制的结合。

Drawing is the basis for project construction, project technical director should organize relevant technical staff work review and digestion of the drawings, the purpose is to make the construction units and construction units are familiar with design drawings, understand the engineering characteristics and the design intention, to find out the technical problems need to be solved, and develop solutions; the two is to solve drawing problems, reduce drawing errors, quality problems in the drawing will be nipped in the bud. At the same time, we should do a good job of technical basis, do well the combination of construction and design, do a good job of the combination of steel structure hoisting and civil construction, steel structure and concrete precast.

1.2认真编制钢结构工程施工组织设计

1.2 carefully compile the construction organization design of steel structure engineering

施工组织设计是施工单位编制的指导工程施工全过程各项活动的重要综合性技术文件，是一个科学的管理方法。施工单位在编制施工组织和施工方案时，须从人、机、料、法、环五个方面制定切实可行的具体实施细则，落实计划，落实组织人员，落实自检、互检和专检，把容易出现的质量问题全部纳入受控状态，确保方案技术措施得力、可行。在编制和贯彻施工组织设计过程中应做到广泛深入的研究，向施工人员交底，做到人人把关。钢结构工程要针对制作阶段和安装阶段分别编制制作工艺和安装施工组织设计。其中制作工艺内容应包括制作阶段各工序、各分项的质量标准、技术要求，以及为保证产品质量而制订的各项具体措施。钢结构安装工程施工组织设计内容有质量保证体系和技术管理体系的建立、质量、进度控制的措施和方法、施工工期的安排等。

Construction organization design is an important comprehensive technical document which is compiled by the construction unit to guide all activities in the whole process of construction, and it is a scientific management method. The construction units in the construction organization and construction plan, to implement the plan from human, machine, material, method and environment five aspects to develop specific implementation details, practical implementation, organization of personnel, the implementation of self inspection, mutual inspection and special inspection, the quality problems of all included in the controlled state, to ensure technical measures effective and feasible scheme. In the preparation and implementation of the construction organization design process should be done in a wide and in-depth study, to the builders to the bottom, so that everyone checks. The steel structure engineering should prepare the production process and the installation organization design for the production stage and the installation stage respectively. The manufacturing process should include quality standards, technical requirements, and specific measures to ensure product quality. The contents of construction organization design of steel structure installation engineering include quality assurance system and technology management system, quality and schedule control measures and construction schedule.

2、重视钢结构基础工程的质量控制

2. Attach importance to quality control of steel structure foundation engineering

钢结构基础工程的质量控制一般指钢结构基础预埋螺栓的质量控制，预埋螺栓是整个工程施工的第一步，也是非常关键的一步，是整个工程的基础。施工基础预埋螺栓时首先熟悉图纸，了解图纸的意图，应制作安装模板。预埋螺栓用两安装模板及钢筋定位在柱子的主筋和模板上，保证预埋螺栓不受土建浇注混凝土施工而移位。这样每组螺栓之间的间距、高低可控制在允许的误差范围内；同时，保护好螺栓丝扣，在混凝土浇筑时不被损坏。土建工程完工后，用经纬仪和水准仪对地脚螺栓的标高、轴线进行复查，并做好记录。并交下一道工序验收。

The quality control of steel structure foundation engineering generally refers to the quality control of the embedded bolts of steel structure foundation. The embedded bolts are the first step and the key step of the whole project construction, which is the foundation of the whole project. When the bolt is buried in the construction foundation, it is familiar with the drawings and the intention of the drawings. The installation of the template should be made. The pre buried bolt is positioned on the main rib and the template of the column with two installation template and steel bar, so as to ensure that the buried bolt is not moved by the construction of concrete pouring concrete. Between the distance and the height of each bolt can be controlled in the allowable error range; at the same time, to protect the bolt thread is not damaged, in concrete pouring. After the completion of the civil engineering, the height and axis of the anchor bolts are rechecked with the theodolite and the leveling instrument, and the records are made well. And submit a procedure for acceptance.

3、钢结构制作工程质量控制

3. Quality control of steel construction engineering

钢结构工程的施工通常要经过工厂制作和现场安装两个阶段。钢结构工程有大部分时间是在工厂车间内部进行，由于钢结构构件在工厂内加工制造的质量好坏，对钢结构工程的现场安装及整体结构的安全稳定至关重要。因此钢结构制作生产厂家必须具备相应企业资质、生产规模、技术能力、机械设备及先进的工艺水平。

The construction of steel structure engineering usually passes through two stages of factory production and site installation. Steel structure works are mostly carried out in the workshop within most of the time. Because the quality of the steel structure components in the factory is critical for the on-site installation of the steel structure engineering and the safety and stability of the whole structure. Therefore, the production manufacturers of steel structure must have the corresponding enterprise qualification, production scale, technical ability, mechanical equipment and advanced technological level.

钢结构一般制作工艺流程分为:放样→下料→拼板→切割→组立→埋弧焊接→钻孔→组装→矫正成型→铆工零配件下料→制作组装→焊接和焊接检验→防锈处理、涂装、编号→构件验收出厂。在钢结构制作中，应根据钢结构制作工艺流程，抓住关键工序进行质量控制，如控制关键零件的加工，主要构件的工艺、措施，所采用的加工设备、工艺装备等。

The general structure of steel production process is divided into: lofting, blanking, plate, cutting, assembling, submerged arc welding, hole drilling, assembly and correction of parts forming, riveting blanking, manufacturing and assembling, welding and welding inspection, anti rust treatment, coating, and component factory approval number. In the production of steel structure, we should take quality control according to the process of steel structure and grasp the key processes, such as controlling the processing of key parts, the process and measures of main components, the processing equipment, process equipment and so on.

4、重视焊接工程质量控制

4. Attach importance to quality control of welding engineering

在钢结构制作和安装工程工程中焊接工程是最重要的环节，必须重视焊接工程质量控制。目前，钢结构在生产过程中大部分采用具自动埋弧焊机，部分具备半自动气体保护焊机，个别部位采用手工施焊。焊接质量问题较多存在于手工焊缝，这些问题有：焊瘤、夹渣、气孔、没焊透、咬边、错边、焊缝尺寸偏差大、不用引弧板、焊接变形不矫正、飞溅物清理不净等。鉴于这种情况，钢结构施焊前，对焊条的合格证要进行检查，按说明书要求使用，焊工必须持证上岗证，焊缝表面不

Welding engineering in the construction and installation of steel structure is the most important link, and the quality control of the welding engineering must be paid attention to. At present, most of the steel structures are equipped with automatic submerged arc welding machines, partly with semi-automatic gas shielded welding machines, and some parts are manually welded. Many problems exist in the welding quality manual welding, these problems are: welding slag, porosity, no penetration, undercut, mismatch, weld size deviation, no arc plate, welding deformation correction, spatter clean-up net etc.. In view of this situation, before welding the steel structure, the qualification certificate of the electrode should be inspected, and the welder must have the certificate of license and the surface of the weld.