一、概述1.基本特点以冷弯薄壁型钢构件为基本结构骨架，以新型结构板材为结构体系，配以其它保温、装饰材料，经工厂集成生产和现场装配而成的房屋建筑体系。

　　1、 Overview 1. Basic characteristics: A building system composed of cold-formed thin-walled steel components as the basic structural framework, new structural plates as the structural system, and other insulation and decorative materials, integrated in the factory and assembled on site.

　　该系统采用冷弯薄壁型钢结构体系，具有截面尺寸小、自重轻等特点，比传统建筑的使用面积提高5～10%，显著地降低了基础造价；独特的墙体承重体系，使建筑造型富于轻灵动感，提高了室内布局的灵活性；低碳环保型建筑材料，使建筑耐久性更好、结构更安全，具有良好的抗震、防火、热工、隔声性能，是一种高效节能型绿色建筑体系。

　　The system adopts a cold-formed thin-walled steel structure system, which has the characteristics of small cross-sectional size and light self weight. It increases the usable area by 5-10% compared to traditional buildings and significantly reduces the foundation cost; The unique load-bearing system of the walls gives the building a light and dynamic appearance, enhancing the flexibility of indoor layout; Low carbon and environmentally friendly building materials make buildings more durable, structurally safer, and have good seismic, fire, thermal, and sound insulation properties. They are an efficient and energy-saving green building system.

　　2.适用范围超轻钢住宅体系适用于1～6层（不含地下室，檐口高度应不大于12m）的新建、改建、扩建建筑。但是冷弯薄壁型钢骨架与钢结构、钢筋混凝土结构的混合结构建筑物的层数不受此限。

　　2. Scope of application: The ultra light steel residential system is suitable for newly built, renovated, and expanded buildings with 1 to 6 floors (excluding basements, with eaves height not exceeding 12m). However, the number of floors in mixed structure buildings with cold-formed thin-walled steel frames, steel structures, and reinforced concrete structures is not limited by this.

　　二、性能指标耐久性能：70年以上的使用年限；耐雪性能：1.55kN/㎡的基本雪压；抗震性能：9度设防（基本地震加速度0.4g）；抗风性能：0.85kN/㎡的基本风压，209km/hr的风速隔音性能：外墙隔音（200mm厚墙体）的隔声量为65dB，内墙（双面双层9.5mm石膏板，181mm墙体）隔声量为44dB；通风性能：自然通风和送风相结合，保证室内空气清新洁净，新风量大于15％；外墙抗冲击性能：250kg的集中冲击荷载；保温隔热性能：200mm厚墙体的热阻值为4.24K?㎡/W，其保温隔热性能是490mm厚多孔砌块砖的2倍。

　　2、 Performance indicator durability: a service life of over 70 years; Snow resistance performance: basic snow pressure of 1.55kN/m2; Seismic performance: 9-degree fortification (basic seismic acceleration 0.4g); Wind resistance performance: basic wind pressure of 0.85kN/m2, wind speed of 209km/hr Sound insulation performance: the sound insulation of the exterior wall (200mm thick wall) is 65dB, and the sound insulation of the interior wall (double-sided double-layer 9.5mm gypsum board, 181mm wall) is 44dB; ventilation performance: a combination of natural ventilation and air supply to ensure fresh and clean indoor air, with a fresh air volume greater than 15%; External wall impact resistance performance: concentrated impact load of 250kg; Thermal insulation performance: The thermal resistance value of a 200mm thick wall is 4.24K? ㎡/W, and its thermal insulation performance is twice that of a 490mm thick porous block brick.

　　三、规范性引用文件主要引用下列标准条文，当标准被修订后，使用最新版本的引用标准：《建筑结构荷载规范》GB50009-2012《混凝土结构设计规范》GB50010-2010《建筑抗震设计规范》GBSOOll-2010《建筑设计防火规范》GB50016-2014《钢结构设计规范》GB50017-2003《冷弯薄壁型钢结构设计规范》GB50018-2002《建筑结构可靠度设计统一标准》GB50068-2001《低层冷弯薄壁型钢房屋建筑技术规程》JGJ227-2011《水泥纤维平板》JC/T412.1-2006《纤维增强硅酸钙板》JC/T564.1-2008《钢结构工程施工质量验收规范》GB50205-2001《碳素结构钢》GB/T700-2006《冷弯型钢技术条件》GB6725-2008《低合金高强度结构钢》GB/T1591-2008《钢结构工程质量检验评定标准》GB50221-2001其它国家或行业现行相关专业技术规范、规程。

　　3、 Normative reference documents mainly refer to the following standard provisions. When the standard is revised, the latest version of the reference standard is used: "Code for Load of Building Structures" GB50009-2012 "Code for Design of Concrete Structures" GB50010-2010 "Code for Seismic Design of Buildings" GBSOOll-2010 "Code for Fire Protection Design of Buildings" GB50016-2014 "Code for Design of Steel Structures" GB50017-2003 "Code for Design of Cold formed Thin walled Steel Structures" GB50018-2002 "Unified Standard for Reliability Design of Building Structures" GB50068-2001 "Technical Specification for Low rise Cold formed Thin walled Steel Buildings" JGJ227-2011 "Cement Fiber Plate" JC/T4121-2006 "Fiber Reinforced Calcium Silicate Board" JC/T564.1-2008 "Construction Quality of Steel Structure Engineering Acceptance Specification" GB50205-2001 "Carbon Structural Steel" GB/T700-2006 "Technical Conditions for Cold Formed Steel" GB6725-2008《 Low alloy high-strength structural steel "GB/T1591-2008" Quality inspection and evaluation standards for steel structure engineering "GB50221-2001 Other relevant professional technical specifications and regulations currently in use in other countries or industries.

　　四、 轻钢住宅体系七大优势1.安全

　　4、 Seven advantages of light steel residential system: 1. Safety

　　与木结构建筑相比，钢结构建筑防火性能和防白蚁性能大大优于木结构建筑。超轻钢结构形式建筑在北美的出现和发展很大原因是因为木结构自身的防火性能和防白蚁性能较差，因此在轻型木结构基础上发展了超轻钢结构体系。

　　Compared with wooden structures, steel structures have significantly better fire and termite resistance. The emergence and development of ultra light steel structure buildings in North America are largely due to the poor fire and termite resistance of wooden structures. Therefore, ultra light steel structure systems have been developed on the basis of lightweight wooden structures.

　　与传统砖混结构相比，钢结构体系本身较砖混结构更具延展性和弹性。超轻钢结构属于板肋结构体系，它由轻钢龙骨和欧松板形成的墙体、楼板作为承重结构，属于超静定结构体系，单根轻钢龙骨或欧松板的破坏不会立即导致整体结构的破坏，有利于建筑物内人员逃生。同时自重轻的钢结构建筑更有利于抵抗地震时的水平荷载（水平荷载为建筑物自重和水平加速度的乘积，质量越小的建筑物承受的水平荷载越小）。所以在地震多发区域的日本和台湾，低层建筑多为自重较轻的轻型木结构和钢结构建筑。

　　Compared with traditional brick and concrete structures, steel structure systems themselves have more ductility and elasticity than brick and concrete structures. Ultra light steel structure belongs to the plate rib structure system, which is composed of walls and floors formed by light steel keel and European pine board as load-bearing structures. It belongs to the ultra static structural system, and the damage of a single light steel keel or European pine board will not immediately cause the overall structure to be destroyed, which is conducive to the escape of personnel inside the building. Steel structure buildings with light self weight are more conducive to resisting horizontal loads during earthquakes (horizontal loads are the product of the building's self weight and horizontal acceleration, with smaller buildings bearing smaller horizontal loads). So in earthquake prone areas such as Japan and Taiwan, low rise buildings are mostly lightweight wooden and steel structures.

　　2.方便与传统砖混结构相比，自重轻的钢结构建筑的运输量小于砖混结构。利于在运输不便的区域如岛屿、山区建造。超轻钢建筑还可以根据项目需要在工厂完成部分拼装任务，形成整片墙体和楼板，减少现场作业量，加快现场安装速度，适用于当地施工条件恶劣，施工周期较短的项目。

　　2. Compared with traditional brick and concrete structures, the transportation volume of lightweight steel structure buildings is smaller than that of brick and concrete structures. Beneficial for construction in areas with inconvenient transportation, such as islands and mountainous regions. Ultra light steel buildings can also complete partial assembly tasks in the factory according to project needs, forming whole walls and floors, reducing on-site workload, accelerating on-site installation speed, and suitable for projects with harsh local construction conditions and short construction periods.

　　3.环保

　　3. Environmental Protection

　　轻钢住宅体系产品所采用的建筑材料均为符合国家标准的绿色环保材料，所用轻钢龙骨70年后仍可回收利用，现场建造过程中大量使用成品构件安装，建造用水需求量小，整个建造过程比砖混结构大大减少废水、废尘和固体废弃物的排放，有利于当地环境的保护。轻钢住宅体系建造过程中材料损耗减少60%，现场垃圾减少80%，可回收材料占80%，建筑节能提高50%。

　　The building materials used in the light steel residential system products are all green and environmentally friendly materials that meet national standards. The light steel keel used can still be recycled after 70 years. During the on-site construction process, a large number of finished components are used for installation, and the construction water demand is small. The entire construction process greatly reduces the discharge of wastewater, dust, and solid waste compared to brick and concrete structures, which is conducive to the protection of the local environment. During the construction process of the light steel residential system, material loss is reduced by 60%, on-site waste is reduced by 80%, recyclable materials account for 80%, and building energy efficiency is increased by 50%.

　　4.节能轻钢住宅体系外墙采用双层保温结构，由内向外分别为：石膏板、轻钢龙骨、R19离心玻璃纤维棉、OSB（欧松板）、呼吸纸、挤塑板和外墙饰面层。由于墙体采用R19离心玻璃纤维棉和25mm厚挤塑板双层保温材料，墙体系统的热阻值可达到为4.24K?㎡/W，其保温隔热性能是490mm厚多孔砌块砖墙体的2倍。建筑屋盖由内向外分别为：石膏板、R30离心玻璃纤维棉、轻钢龙骨、OSB（欧松板）、防水卷材和屋面装饰层。封檐板为多孔构造，使整个屋架通风透气，流通的空气既可防霉也可起到保温隔热的作用，整个屋盖系统热阻值为5.284K?㎡/W，是普通120mm厚混凝土屋顶（热阻值为0.07K?㎡/W ）的75倍。

　　4. The exterior wall of the energy-saving light steel residential system adopts a double-layer insulation structure, which consists of gypsum board, light steel keel, R19 centrifugal glass fiber cotton, OSB (European pine board), breathing paper, extruded board, and exterior wall decorative layer from inside to outside. Due to the use of R19 centrifugal glass fiber cotton and 25mm thick extruded polystyrene board double-layer insulation material in the wall system, the thermal resistance value of the wall system can reach 4.24K? ㎡/W, and its insulation performance is twice that of 490mm thick porous brick walls. The building roof is composed of gypsum board, R30 centrifugal glass fiber cotton, light steel keel, OSB (European pine board), waterproofing membrane, and roof decoration layer from inside to outside. The eaves panel is a porous structure that allows the entire roof truss to be ventilated and breathable. The circulating air can not only prevent mold but also provide insulation. The thermal resistance value of the entire roof system is 5.284K? ㎡/W, which is 75 times that of a regular 120mm thick concrete roof (with a thermal resistance value of 0.07K? ㎡/W).

　　5.实用

　　5. Practical

　　轻钢住宅体系双层保温装饰外墙厚度仅为180mm，比一般不含保温装饰的砖混结构墙体（一般为240mm）还要小60mm.

　　The thickness of the double-layer insulation decoration exterior wall of the light steel residential system is only 180mm, which is 60mm smaller than the general brick and concrete structure wall without insulation decoration (usually 240mm)

　　根据所做项目测算，轻钢住宅体系的得房率比普通砖混结构要提高5%-10%。同时由于轻钢结构体系采用墙板和楼板受力而非传统的梁柱受力，所以轻钢建筑室内几乎无梁无柱，空间利用更高。

　　According to the project calculations, the yield of light steel residential systems is 5% -10% higher than that of ordinary brick and concrete structures. At the same time, due to the use of wall panels and floor slabs instead of traditional beam column loads in the light steel structure system, there are almost no beams or columns in the interior of light steel buildings, resulting in higher space utilization.

　　6.快捷

　　6. Quick and efficient

　　轻钢住宅体系采用工厂加工构件，现场拼装，无需养护，所以施工速度比普通砖混结构要提高30%-50%。整个施工流程分：基础施工、墙体安装、屋顶安装、结构封板、外墙保温、室内装饰、室外装饰和完工交房八大步骤。不含基础施工的毛坯房施工周期为1-2个月，精装修房施工周期为2-3个月。一套100平方米的超轻钢主体结构安装时间只需4-5天，整体施工周期比传统建筑至少缩减1/2的时间。

　　The light steel residential system adopts factory processed components, on-site assembly, and does not require maintenance, so the construction speed is 30% -50% faster than ordinary brick and concrete structures. The entire construction process is divided into eight steps: foundation construction, wall installation, roof installation, structural sealing, external wall insulation, indoor decoration, outdoor decoration, and completion and handover. The construction period for rough houses without foundation construction is 1-2 months, and the construction period for fine decoration houses is 2-3 months. A 100 square meter ultra light steel main structure can be installed in just 4-5 days, reducing the overall construction period by at least half compared to traditional buildings.

　　7.综合经济效益好

　　7. Good comprehensive economic benefits

　　A.施工周期短，早投产早得益；B.有效使用面积增加；C.投资使用分配合理，价符其值；地上与地下工程费分配90:10；D.材料与人工费分配?60:40；因此轻钢住宅体系综合经济效益优于钢筋混凝土结构。

　　A. Short construction period, early production and benefits; B. Increase in effective usage area; C. Reasonable allocation of investment use and value matching; Distribution of above ground and underground engineering costs 90:10; D. What is the allocation of material and labor costs? 60:40； Therefore, the comprehensive economic benefits of light steel residential systems are superior to those of reinforced concrete structures.

　　六、超轻钢主体结构性能1.钢材的选用用于低层冷弯薄壁型钢房屋承重结构的冷弯薄壁型钢, 应采用现行国家标准《碳素结构钢》GB/T700、《低合金高强度结构钢》GB/T1591 规定的Q235、Q345 ，以及满足现行国家标准《连续热镀锌钢板及钢带》GB/T 2518、《连续热镀铝锌合金镀层钢板及钢带》GB/T14978 要求的Q550 级钢材。

　　6、 Performance of Ultra Light Steel Main Structure 1. Selection of Steel: Cold formed thin-walled steel used for load-bearing structures of low rise cold-formed thin-walled steel buildings should use Q235 and Q345 specified in the current national standards "Carbon Structural Steel" GB/T700 and "Low alloy High strength Structural Steel" GB/T1591, as well as Q550 grade steel that meets the requirements of the current national standards "Continuous Hot dip Galvanized Steel Plate and Strip" GB/T 2518 and "Continuous Hot dip Aluminum Zinc Alloy Coated Steel Plate and Strip" GB/T14978.

　　2.结构性能冷弯薄壁型钢钢材强度设计值应按下表采用。冷弯薄壁型钢材强度设计值（N/mm?）钢材牌号钢材厚度t（mm）屈服强度fy抗拉、抗压和抗弯f抗剪fv端面承压（磨平顶紧）feQ235钢t≤6.0235205120310Q345钢t≤6.0345300175400Q550钢t≤0.6585500285—0.6＜t≤0.95504702700.9＜t≤1.25154402501.2＜t≤1.54654002303.镀锌量要求最小镀层要求是保护钢材不被腐蚀，对镀锌层厚度的使用按设计的要求进行。常用镀锌量要求如表下表所示。最小镀锌量要求（g/㎡）地区类别镀锌量最低要求一般地区180沿海地区、高腐蚀性地区275

　　2. The strength design values of cold-formed thin-walled steel for structural performance should be adopted according to the following table. Design value of strength for cold-formed thin-walled steel (N/mm?) Steel grade Steel thickness t (mm) Yield strength fy Tensile, compressive, and bending strength f Shear strength fv End face compression (ground flat and tightened) feQ235 steel t ≤ 6.0235205120310Q345 steel t ≤ 6.0345300175400Q550 steel t≤0.6585500285—0.6＜t≤0.95504702700.9＜t≤1.25154402501.2＜t≤1.54654002303. The minimum requirement for galvanized coating is to protect the steel from corrosion, and the thickness of the galvanized layer should be used according to the design requirements. The commonly used galvanizing requirements are shown in the table below. Minimum requirement for galvanizing amount (g/㎡) Regional category Minimum requirement for galvanizing amount General area 180 Coastal area, high corrosive area 275

　　4.钢材的耐腐蚀性能根据建筑物建造地点环境不同，型钢镀锌量要求也不同。锌层多少决定房屋构造使用寿命。目前，各国标准基本分三挡：1）构件地处潮湿环境且裸露状态时，镀锌量要求275克/m? (相当镀锌厚度为20微米);2 ）承重及外墙构件，镀锌量要求180克/m? (相当镀锌厚度为13微米);3 ）非承重构件, 镀锌量要求120克/m?(相当镀锌厚度为8微米);

　　4. The corrosion resistance of steel varies depending on the environment of the building construction site, and the requirements for the amount of galvanizing on the steel section also differ. The amount of zinc layer determines the service life of the building structure. At present, the standards of various countries are basically divided into three levels: 1) When the component is located in a humid environment and exposed, the required amount of galvanizing is 275 grams/m ? (equivalent to a galvanizing thickness of 20 microns); 2) The load-bearing and exterior wall components require a galvanizing amount of 180 grams/m ? (equivalent to a galvanizing thickness of 13 microns); 3) Non load bearing components require a galvanizing amount of 120 grams/m ? (equivalent to a galvanizing thickness of 8 microns);

　　根据英国钢铁公司对不同地区、环境的15栋轻钢住宅跟踪取样测试结果是：轻钢镀锌构件锈蚀率为三年平均不到0.1微米，也就是说，8微米厚镀锌冷弯薄壁型钢构件，正常使用条件下，使用寿命可达240年。而一般住宅设计寿命仅60年；

　　According to the tracking sampling test results of 15 light steel residential buildings in different regions and environments by British Steel Company, the corrosion rate of galvanized components of light steel is less than 0.1 microns on average over three years. In other words, the 8-micron thick galvanized cold-formed thin-walled steel components can have a service life of 240 years under normal use conditions. However, the design lifespan of general residential buildings is only 60 years;

　　美国国家住宅研究中心NAHB对4栋地处环境较差寒冷或炎热近海地域轻钢住宅跟踪取样测试结果表明：目前采用的轻钢镀锌构件住宅使用寿命可达100年以上；

　　The National Center for Housing Research (NAHB) in the United States conducted tracking sampling tests on four light steel residential buildings located in cold or hot coastal areas with poor environmental conditions. The results showed that the current use of light steel galvanized components in residential buildings can have a service life of over 100 years;

　　中国二汽挂片试验得到: ?如十堰、兰州、桂林、昆明等地干燥、无腐蚀介质条件， 五年腐蚀深度为：0.00327。

　　China Second Automobile Group's hanging test results:? Dry and non corrosive medium conditions in places such as Shiyan, Lanzhou, Guilin, Kunming, etc., with a five-year corrosion depth of 0.00327.

　　七、超轻钢主体结构构件的特性

　　7、 Characteristics of ultra light steel main structural components

　　八、超轻钢主体结构构件打包方式我们以房屋部件（如：墙体、屋架）进行打包，方便识别，装卸便捷。

　　8、 The packaging method for the main structural components of ultra light steel is to package the building components (such as walls and roof trusses) for easy identification and convenient loading and unloading.

　　九、超轻钢主体结构安装步骤第一步:根据各部件图纸把部件拼装好，然后用自攻螺钉连接成整体第二步：根据地基放线把组装好的部件放到指定位置，并用临时支撑固定第三步：复检尺寸及矫正龙骨第四步：调整好墙体位置后与基础连接,部件与部件连接第五步：安装墙面抗风拉带和拉紧器等其他配件第六步：安装屋架/楼板，完毕说明：多层房屋，安装完楼板骨架后，安装楼面结构板并固定一层墙面结构板后，再按第一步安装二层框架。

　　9、 The first step of installing the ultra light steel main structure is to assemble the components according to the drawings of each component, and then connect them into a whole with self tapping screws. The second step is to place the assembled components in the designated position according to the foundation layout, and fix them with temporary supports. The third step is to recheck the dimensions and correct the dragon bones. The fourth step is to adjust the position of the wall and connect it to the foundation. The fifth step is to install the wall anti wind tension band and other accessories such as tensioners. The sixth step is to install the roof truss/floor slab. After installing the floor slab skeleton, install the floor structural plate and fix the first floor wall structural plate. Then, install the second floor frame according to the first step.

　　十、施工工艺流程1.基础施工流程包括：测量放样 → 地基验槽 → 管道预埋 → 垫层浇筑 → 钢筋绑扎 → 模板施工 → 隐蔽验收 → 基础浇筑 → 模板拆除 → 基础验收 → 基础轴线放样。

　　10、 Construction process: 1. The basic construction process includes: measurement and layout → foundation trench inspection → pipeline pre embedding → cushion layer pouring → steel bar binding → formwork construction → concealed acceptance → foundation pouring → formwork removal → foundation acceptance → foundation axis layout.

　　2.墙体系统施工流程包括：墙体测量放样 → 墙架拼装（若墙体为工厂拼装，此步骤放在工厂完成）→ 防水、防潮膜（垫）铺设 → 单片墙架安装 → 临时斜撑施工→ 墙体校正 → 墙体之间连接 ?→ 外墙体X 剪力钢带施工 → 墙体复检 → 墙体抗拔、抗剪锚栓与基础连接 → 墙面板（OSB板）安装 →（水电管线安装→填保温棉→内侧墙面板（石膏板））→ 呼吸纸安装 → 保温板安装 → 刷界面剂 → 网格布或钢丝网 → 砂浆 → 装饰层。

　　2. The construction process of the wall system includes: wall surveying and setting out → wall frame assembly (if the wall is assembled in the factory, this step is completed in the factory) → waterproof and moisture-proof membrane (pad) laying → single wall frame installation → temporary slant support construction → wall correction → wall connection? → Construction of exterior wall X shear steel strip → Wall re inspection → Wall pull-out and shear anchor bolt connection with foundation → Installation of wall panel (OSB board) → (Installation of water and electricity pipelines → Filling of insulation cotton → Inner wall panel (gypsum board)) → Installation of breathing paper → Installation of insulation board → Application of interface agent → Mesh cloth or steel wire mesh → Mortar → Decorative layer.

　　3.楼盖系统施工流程包括：

　　3. The construction process of the floor system includes:

　　楼板测量放样 → 楼板边导轨安装 → 楼盖梁安装 → 梁端腹板加劲件、加劲短柱设置 → 楼盖支撑系统安装 → 楼盖梁上贴双面胶（3mm泡棉胶）→ 楼面板（OSB板）安装 → 40厚细石砼（内配钢丝网）浇筑→（水电管线安装→填保温棉→吊顶板（石膏板））→装饰面层。

　　Floor measurement and layout → Installation of floor edge guide rails → Installation of floor beams → Setting of web plate stiffeners and short columns at beam ends → Installation of floor support system → Applying double-sided tape (3mm foam adhesive) on floor beams → Installation of floor slabs (OSB boards) → Pouring of 40mm thick fine aggregate concrete (with steel wire mesh inside) → Installation of water and electricity pipelines → Filling of insulation cotton → Ceiling board (gypsum board) → Decorative surface layer.

　　4.屋盖系统施工流程包括：桁架测量放样 → 桁架与墙体连接件安装 →桁架安装 → 校正 → 设置屋架支撑系统 → 小屋脊板、檐口安装 → 屋面板安装 → 大屋脊板安装 → 防水卷材铺设 → （水电管线安装 → 填保温棉 → 吊顶板（石膏板））→ 屋面瓦安装。

　　4. The construction process of the roof system includes: truss measurement and layout → installation of truss and wall connectors → truss installation → calibration → setting up the roof truss support system → installation of small roof ridge and eaves → installation of roof panels → installation of large roof ridge panels → laying of waterproof rolls → (installation of water and electricity pipelines → filling of insulation cotton → ceiling panels (gypsum boards)) → installation of roof tiles.