咨询电话:0554-4991161
新闻中心
联系我们

电话:0554-4991161
手机:18175036696 
         13588259339
传真:0554-4991161
地址:寿县炎刘镇二环
路与新桥大道路口向东100米

当前的位置:网站首页 >> 新闻中心 >> 新闻中心 新闻中心

低层轻型钢结构装配式住宅体系

发布时间:2015-9-6 8:59:47 浏览次数:748




冷弯薄壁型钢结构装配式住宅体系是一种轻型钢结构体系,主要由墙体、楼盖、屋盖及维护结构组成,这种结构一般适用于三层以下的独立或联排住宅,其每个住宅单元的平面尺寸为:最大长度18m,宽度为12m;单层承重墙高度不超过3.3m,檐口高度不超过9m;屋面坡度取值宜在1:4~1:1范围内。


冷弯薄壁型钢结构装配式住宅的基本构件只有U形(普通槽形)和C形(卷边槽形)两种截面形式。U形截面一般用作顶梁、底梁或边梁,C形截面一般用作梁柱构件,构件的金属材料厚度一般在0.46~2.46mm范围内,但顶梁、底梁、边梁和承重构件的厚度应不小于0.84mm.构件已经定型化,U形截面常用型号只有8种,C形截面常用型号只有5种,可见构件种类很少,无论设计还是制作与安装都是很方便的。另外,冷弯薄壁型钢结构件的截面形状合理,材料利用率高,钢结构用钢量省,在澳大利亚,这种体系的用钢量约100kN/m2.

钢结构构件连接的紧固件包括螺钉、普通钉子、射钉、拉铆钉、螺栓和扣件等。受力构件常用螺钉(采用自钻自攻螺钉和自攻螺钉)连接,自钻自攻螺钉用于0.84mm厚以上的钢板的连接,自攻螺钉仅用于石膏板等结构板材或0.84mm厚以下的钢板之间的连接,常用的自钻自攻螺钉或自攻螺钉规格只需3~5种。在结构的次要部位,可采用射钉、拉铆钉或扣件等紧固件,扣件连接还用于形成组合截面。轻钢楼盖或墙体通过锚栓与砌体或混凝土基础连接,普通钉子用于构件与木地梁的连接。

楼盖由密梁和楼面板组成,在梁的端头套有边梁,楼面梁在墙上的支承时,必须有足够的支承长度。当楼面梁跨度超出3.5m时,应采取拉接措施加强梁的侧向稳定性。当需要在楼板上开洞时,楼板洞口周边应设置边梁。楼盖必须与混凝土基础、木地梁或承重墙可靠连接。楼盖及其构件的强度、刚度、稳定以及楼盖的振动均应满足设计要求。

墙体结构由密柱和墙板组成,墙柱的两端套有底梁或顶梁,墙板为墙体提供侧向支撑作用,必要时应设置X形剪力支撑系统。所有承重墙门窗洞口上方必须设置过梁,过梁可采用箱形、工形或L形截面,其截面尺寸应符合设计要求。当抗震设防烈度为8度及其以上或最大风压为1.5kN/m2(标准值)以上时,应设置剪力墙和采取抗拔等拉接措施。墙体与基础或楼盖必须可靠连接,墙体及其构件的强度、刚度、稳定均应满足设计要求。

屋盖也采用密梁体系,上铺屋面板,屋架由屋面斜梁和屋面横梁组成。屋架(横梁)与承重墙的顶梁、屋面板与屋架斜梁、端屋架与山墙顶梁、屋架斜梁与屋架横梁或屋脊构件都必须可靠连接,屋架横梁在支座处必须有足够的支承长度,为了保持屋架在安装和使用时的稳定性和整体性,屋架横梁和屋架斜梁均应设置水平支撑,在屋架横梁和斜梁之间还应设置斜支撑。当需要在屋面或天花板上开洞时,洞口周边应设置边梁。当抗震设防烈度为8度及其以上或最大风压为1.5kN/m2(标准值)以上时,屋盖通过檐口连接件与剪力墙可靠拉接。屋盖系统及其构件的强度、刚度和稳定均应满足设计要求。

为了保证钢结构房屋具有良好的居住性能,应对底层楼面、外墙和屋面采取保温与隔热措施,如在轻钢结构骨架空腔内填充保温棉、喷射液体发泡材料或外贴泡沫隔热板材等;住宅的墙体、楼板和屋顶也宜采取吸音、隔声和消声措施,建筑围护结构还应采取措施防止水汽凝结现象的发生。

用于承重结构的钢材,均采用Q345或Q390钢,当有可靠依据时,也可以采用其他牌号的钢材。保温材料采用玻璃纤维、聚胺酯板、岩棉板、挤塑板等轻质材料。防水材料可采用防水卷材、改性沥青、复合材料等。结构面板可采用定向板、胶合木(竹)板、石膏板、水泥纤维板、水泥木屑板等材料。屋面材料可采用沥青瓦、金属瓦、彩色水泥瓦等轻质材料。外墙饰面材料可采用金属挂板、饰面水泥木屑板、复合材料等。门窗采用各种轻质材料门窗。轻型钢结构住宅体系具有钢结构的一般优点,但相对其他结构而言,特点显得更加突出:①结构自重轻:基础负担小,可大幅减少基础造价,尤其适用于地质条件较差的地区;结构地震反应小,用于结构抗震措施的费用少,适用于地震多发区;制作、运输、安装、围护方便,降低人工和机械费用。②施工周期短:投资回报快,资金风险低,投资效益高。③工厂制作,现场拼装:湿作业、噪声、粉尘与垃圾少,受气候影响小;不使用粘土砖,可拆卸和回收,符合国家土地资源政策、环保政策和可持续发展战略;构件在工厂标准化生产,质量稳定,有利于住宅产业化。④采用新型轻质围护材料,不助燃,不霉变,不虫蛀;装修一次到位,少维修;管线可暗埋在墙体及楼层结构中;在保温、隔热、隔声等性能方面比传统结构的住宅好,因此住宅的舒适性更好。⑤墙体承载力高:墙体厚度小,有效使用空间增加,使轻钢结构住宅的实际单位使用面积造价与砖混结构的造价接近。⑥轻型钢结构装配式住宅具有良好的综合经济效益。



Cold-formed thin-wall steel structure prefabricated housing system is a kind of light steel structure system, mainly by the walls, floor, roof and maintenance structure, this structure is generally applied to three layers of the following independent or row houses, the plane size for each residential unit: the maximum length of 18 m, width of 12 m; Single bearing wall height is not more than 3.3 m, cornice height is not more than 9 m; Roof pitch values should be within the scope of 1:4 ~ 1 to 1.

Cold-formed thin-walled steel structure of basic building blocks prefabricated housing only U (common channel) and C (edge trough) two sections. U-shaped cross section generally used as the top beam, beam, beam or C shape section generally used as beam-column member, member of the thickness of the metal material generally within the range of 0.46 ~ 2.46 mm, but the top beam, beam, beam and the thickness of the bearing component should not be less than 0.84 mm. The component has a standard, u-shaped cross section only eight kinds of commonly used models, c-shaped cross section only five commonly used models, rarely visible artifacts sort, no matter design or production and installation is very convenient. In addition, the cold-formed thin-wall steel structure of reasonable section shape, high material utilization, steel weight of the steel structure, in Australia, the steel quantity of an order for the system of about 100 kn/m2.

Steel structure component connection fasteners, including screw, common nails, nail, rivets, bolts, fasteners and so on. Common screw mechanical components (using self-drilling screw with tapping screw and tapping screw) connection, self-drilling screw with tapping screw connection for more than 0.84 mm thick steel plate, self tapping screw for gypsum board structure or only 0.84 mm thick steel plate under the connection between the, commonly used self-drilling screw with tapping screw, or self tapping screw only 3 ~ 5 kinds of specifications. Can be used in the structure of the secondary site, nail, rivets and fasteners fasteners, fastener connection is also used to form a composite section. Light steel floor or wall by anchor bolt and masonry or concrete base connection, common nails used for components and wood beam connection.

Floor is composed of dense beam and floor plate, beam, in the end of the beam has a supporting of the floor beam on the wall, there must be sufficient bearing length. When the floor beam span more than 3.5 m, pull take measures should be taken to strengthen the lateral stability of beam. When need to open the hole in the floor, floor beam shall be set up around the mouth of the cave. Floor must be based, wood and concrete beam or main wall and reliable connection. Strength, stiffness, stability of floor and its components as well as the vibration of the floor should be meet the design requirements.

Wall structure is composed of dense column and wall, wall column at both ends of the set of a bottom beam or top beam, wall panel to provide lateral support to the wall, x-shaped shear support system shall be set up when necessary. All main wall Windows and doors hole must be set above the lintel, lintel can use box, form of work or l-shaped cross section, the section size should meet the design requirements. When the seismic fortification intensity of 8 degrees and over or maximum wind pressure is 1.5 kN/m2 (standard) above, such as shear wall should be set up and take the pull-out take measures. Wall body and foundation or floor must be reliable connection, strength, stiffness, stability of wall and its components shall meet the design requirements.

On roof also USES beam system, roof panel, roof is composed of roofing cant beam and roof beams. Roof (beam) and main wall of the top beam, roof panel and roof truss inclined beam, roof and gable roof beam, truss inclined beam and truss beams or roof components must be reliable connection, roof beam in the bearing place must have enough bearing length, in order to keep the roof stability and integrity during installation and use, roof beam and truss inclined beam should be set level, should also be set between the roof beams and oblique beam inclined support. When you need to open hole in the roof or ceiling, edge beam shall be set up around the mouth of the cave. When the seismic fortification intensity of 8 degrees and over or maximum wind pressure is 1.5 kN/m2 (standard) above, through the eaves of the roof fittings and shear wall is reliable. Roof system and its components, the strength, stiffness and stability all should meet the design requirements.

In order to ensure that the steel structure housing has a good live performance, deal with the bottom floors, walls and roofing heat preservation and heat insulation measures, such as in frame light steel structure inside the cavity filling heat preservation cotton, spray liquid foaming material or attached with foam insulation board, etc.; Walls, floor and roof of the residence and appropriate sound-absorbing, sound insulation and noise elimination measures, building palisade structure also measures should be taken to prevent water vapor condensation phenomenon.

For use in bearing structure, adopt or Q390 Q345 steel, when have reliable basis, also can use other brand of steel. Thermal insulation material is made of glass fiber, polyurethane plate, rock wool board, extruded board and other lightweight materials. Can use waterproof coiled material, modified asphalt waterproofing materials, composite materials, etc. Can use directional structure panel board, glued wood (bamboo) board, gypsum board, the material such as cement fiberboard, cement particleboard. Roofing materials can be used for asphalt tiles, metal tile, color cement tile and other lightweight materials. Exterior wall facing material can use metal hangs Taiwan, facing the cement particleboard, composite materials, etc. Doors and Windows are used in a variety of lightweight materials doors and Windows. Light steel structure housing system has the general advantages of steel structure, but compared with other structures, appears more prominent feature: (1) light weight structure: basic burden is small, can significantly reduce the cost, especially applicable to the geological conditions of poor areas; Structural seismic response is small, for structural aseismic measures cost less, suitable for earthquakes; Production, transportation, installation, convenient retaining, reduce the cost of artificial and mechanical. (2) the construction cycle short, quick return of investment, the fund risk is low, high investment return. (3) the factory production, on-site assembly: wet operation, noise, dust and garbage, less affected by the climate small; Without the use of clay brick, disassembly and recycling, in line with the national land resources policy, environmental protection and sustainable development strategy; Component standardization production in the factory, quality is stable, be helpful for housing industrialization. (4) using new type of lightweight enclosure materials, no combustion, no mildew, not bug eat by moth; Decorate once in place, less maintenance; Pipeline can be dark buried in the wall and floor structure; In heat preservation, heat insulation, sound insulation performance is better than traditional structure housing, so residential comfort better. (5) high bearing capacity of the wall, the wall thickness is small, increase effective use of space, make the light steel structure housing and the cost of the actual unit of usable floor area close to the cost of a brick structure. 6. Prefabricated light steel structure residence has good comprehensive economic benefits.



寿县合兴钢结构有限公司是专业从事安徽钢结构,合肥彩钢瓦,寿县钢结构,合肥钢结构公司

官方网站:http://www.sxhxgjg.com


最新内容:

版权所有:寿县合兴钢结构有限公司 合肥网络布线
电话:0554-4991161    手机:18175036696  13588259339

传真:0564-4991161  地址:寿县炎刘镇二环路与新桥大道路口向东100米 网站地图