The connection of the high density bolt （1）、材料 Material
1、螺栓、螺母、垫圈均应附有质量合格证明，并应符合设计要求和国家标准规定。
The bolt, nut and washers will be accompanied with the quality pass certificate of which is complied with the national standard and the specification.
2、螺栓、螺母、垫圈应保证配套，螺纹不得有损坏，保持清洁、干燥状态，并应按规格分类存放在仓库内。
The bolt, nut and washers should be in uniform. The thread should not be worn-out. It should be in clean and dry state and be kept in the storage according to the specification. （2）、螺栓安装前准备工作
Preparation to the bolt before installation
1、检查各安装构件位置是否正确，是否符合《钢结构工程施工质量验收规范》（GB50205-2001）的精度要求。
Check each part of the installation is in right position and make sure that the installation is comply with the “Regulation for check and acceptance to the quality of steel structure work” code no. GB50205-2001 2、检查安装母材的螺栓孔的孔径及孔距尺寸，孔边的光滑度是否符合要求，如有毛刺应彻底清除。 Check the main material with the hole is correct in diameter and the size. Make sure that the smooth is met the specified requirement. If there is thread on the main material, we immediately remove it. 3、熟悉安装施工图纸及施工计划，并准备好操作扳手设备及相关机具。
We shall familiar with the installation construction drawing and program schedule and make full preparation to the work spanner and the other related equipment. 4、准备好检测工具。
Preparation to the measuring tools （3）、操作工艺 The workmanship
1、连接处钢板应平直，板边、孔边无毛刺，以保证摩擦面紧贴。接头处有翘曲或变形时必须进行校正，并不得损伤摩擦面。
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The connection to the steel plate must be straight, the side and hole should contain no thorn to make sure the surface is closely attached. If there is the bending, we shall make necessary adjustment and avoid the damage to the fraction surface.
2、装配前应清除孔边污染的油污、油漆。
Before fixing, we shall clean dirty oil and paint on the hole side.
3、安装时，首先用临时螺栓拼装，个数不应少于接头螺栓总数的1/3。方法是先用钢穿杆对准孔位，在适当位置插入临时螺栓拧紧螺母，每一个节点至少放入两个临时螺栓。不允许使用高强螺栓兼做临时螺栓。一个安装段完成后，经检查确认合格后方可安装高强度螺栓。
Before installation, we shall use temporary bolt to fix in position, the number will be more than one third of the total number for the connected bolt. The method is pre adjust the steel hole and put the temporary bolt inside and then use the nut to screw it. There will be two temporary bolts in each point. Not allowed to use the high density bolt to be served as the temporary bolt. After one section is completed, then to check it and confirmed then to carry out the work with the high density bolt.
4、安装高强度螺栓，结构中心位置经调整检查无误后，即安装高强螺栓（本工程采用双螺母扣紧）。垫圈放置在螺母一侧，不得装反。如螺栓不能自由穿入螺孔时，要用铰刀修孔后再穿入，不得强行用力打入，以防螺纹损伤，修孔后清理毛刺。
While install the high density bolt, we shall make sure that the central position is check and no mistake and then procedure the work of the high density bolt (This project adopt the double nut screw tight). The washer will be put on one side of the nut and be sure not in opposite direction. If the bolt cannot be through the hole freely, we shall use the knife to adjust the hole and then procedure the work. It should not use the force to go through the hole so as to avoid the damage to the thread. Clean the thorn after adjusting the hole.
5、高强螺栓的紧固：一般分两次进行，第一次为初拧，紧固至螺栓设计预拉力的50%～60%，第二次为终拧，紧固至螺栓设计预拉力，偏差不大于±10%。预拉力按设计规范确定。施工中扳手扭矩公式Tc=k*Pc*d k=0.11~0.15 Pc(设计预拉力) d=螺栓直径
The tight for high density bolt: This work will be in two stage, the first stage is called preliminary tight, the tight force is about 50%-60% of the designed pre-pull force. The second stage is called the final tight. The tight force will reach the designed pull force. The deviation will be less than ±10%. The pre-pull force will
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be determined according to the designed specification. During the work, the spanner force formula will be Tc=k*Pc*d k=0.11~0.15 Pc(designed pre-pull force) d=the diameter of the bolt. 6、检查扭矩扳手标定记录和螺栓的施工记录，当有疑议时应检查螺栓初拧记录。
Check the turn space spanner mark record and the bolt construction record. If there is any questioning, we shall check the preliminary tight record. （4）、质量标准 Quality standard
1、高强螺栓的形式、规格和技术条件必须符合设计要求和有关标准规定，必须进行试验确定扭矩系数或复验螺栓预拉力，应检查合格证及试验报告。
The high density bolt?s type, specification and the technical condition should be comply with the designed specification and the related standard. We must carry out the test to determine the turn space coefficient and recheck bolt pre-pull force and check the quality pass certificate and the test report.
2、螺栓连接面的摩擦系数必须符合设计要求和有关标准规定，表面严禁有氧化铁皮、毛刺、焊疤、油漆和油污等。
The connection surface for the bolt in friction coefficient will be complied with the designed requirement and the related specification. On its surface, there should be no rust, thorn, welding remaining, dirty oil and paint, etc.
3、高强螺栓必须分二次拧紧，初拧、终拧质量必须符合施工规范和钢结构用高强螺栓的专门规定。 The high density bolt must be tight in two stage, the quality of the preliminary and final tight should be complied with the construction regulation and the related specification. 4、高强螺栓穿入方向应一致，丝扣外露不少于2扣。
The high density bolt will be put through in the same direction and the thread rings should less than 2 rings. 5、摩擦面间隙应符合设计和钢结构验收规范要求。
The friction surface between shall complied with the designer and the regulation for steel structure check and acceptance requirement. （5）、高强度螺栓施工注意事项
Items to be taken in consideration during the installation for high density bolt 1、质量方面注意事项
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Quality control
（1）表面浮锈、油污、螺栓孔壁有毛刺、焊瘤等均应清理干净。 The surface with rust, dirty oil, thorn and welding remaining should be cleaned.
（2）接触摩擦面处理后要达到规定的抗滑移系数要求。使用的高强度螺栓应有配套螺母、垫圈，使用时按配套使用，不得互换。
After treating the friction surface should be reached the anti slide coefficient requirement. The use of the high density bolt and the nut, washers should be uniform and be used at the same time not allowed to exchange.
（3）处理好的构件摩擦面安装时不允许沾油污、泥土等杂物。
Treat the part?s friction surface. While installation, there will be no dirty oil and soil, etc （4）安装时构件摩擦面应保持干燥，不应在雨中作业，
While installation the part, the friction surface should keep dry and avoid to work in rain. （5）在安装前严格检查并校正连接钢板的变形。
Before installation, we shall check and recheck the connected steel plate and make necessary adjustment to the bending.
（6）安装时禁止捶击打入螺栓以防止螺栓丝扣受损。
While installation, we shall not use the hammer to hit the bolt to avoid the thorn of the bolt be damaged. （7）使用定期检测的扭矩扳手检验高强螺栓的初拧和终拧扭矩，保证扭矩的准确度，并做好记录。螺栓紧固应按正确的拧紧顺序操作。
We shall check and measure the spanner timely to the preliminary and the final tight of the high density bolt. We shall make sure the precise and do the necessary record. The tight work will be carried on in right procedure.
2、主要安全技术措施 Major safety technical measures
（1）使用活动扳手的扳口尺寸应与螺母尺寸相符，不应使用小扳手上加套管。高空上操作应使用死扳手，如用活扳手时，要用绳子拴牢，人要系好安全带。
To use the flexible spanner the size will fit the nut. While work high above the ground, we shall use the
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fixed spanner. If we are using the flexible spanner, we shall be tied with safety belt.
（2）组装钢构件连接螺栓时，严禁用手插入连接面或探摸螺孔，取放垫铁板时，手指应放在垫铁板的两侧。
While assemble the steel part to connect the bolt, we shall avoid to use the hand in testing the screw hole. The hand will be on the side of the steel plate.
五、屋面板安装方法
The roof panel installation method
由于彩钢板安装是一项集细部设计，生产制作、运输及安装等一揽子工程，各分部分项工程的施工工艺与方法，是保证整个工程优质、安全、高速建成的关键。压型钢板的安装应在钢结构安装质量检验合格并办理结构验收手续后进行。
The installation of the color steel sheet composed of the detailed part design, production sequence, transport and installation, etc. Every part of the work and the method is the key link to the project?s completion, safety, and quality. The installation work will be carried out after the steel structure work has been completed with the formality of the check and accept certificate.
（一）、细部设计工作
Detailed part design work
细部设计是本工程制作、安装工程中最重要的环节，是将原设计的各节点等细化的设计工作，做到指导生产和施工的工艺过程。细部设计的主要内容为：
This part of the detailed design plays a key role to the installation. We shall magnify every connection point on the original drawing so as to instruct the work and workmanship procedure. The followings are the main content for the detailed design: 1、屋面板分布图
The roof coverage arrangement
2、节点大样图（包括天沟、彩钢板拼缝处理、封沿及泛水处理）
The connect point enlarge drawing (include the treatment to gutter, the joint, facial and flush)
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