非隔热壁板投标书翻译-中英对照
4.4.3.23.6设计要求
投标人应当对壁板、屋顶和内墙的荷载设计负全责，应当使其能够承载不高于美国国家标准组织所制定标准的每单位最大允许应力，并且不超过下文段落所提到的最大允许偏位。所有隔热的壁板中都应当使用次檩条，嵌板应当能够衔接两个或者两个以上的檩条的跨度。
投标人应当任用合格的工程师实施或者监督设计工作。
用于壁板、屋顶以及内墙的各个组件之间的连结、组件与檩条之间的连结、以及组件与其他部件之间的连结的扣件，在不超过可容许的最大应力情况下，也应当能够承载一定的重量。
无论是隔热的还是非隔热的壁板、屋顶以及内墙，就其通常的平面而言，其负载的最大可容许的偏位是，两个檩条之间的净跨的承载应当不超过设计载重的1/180。
建筑物的风荷载应当完全负荷美国国家标准局所制定的A58.1荷载标准规定，其风荷载是基于120千米/小时 的风速而言，其最小活荷载应当不低于100千克/平方米。
对金属板来说，其最大的纤维应力应当不超过前述的14千克/平方米的这个误差。
散热需求：
对于隔热壁板、屋顶和内墙来说，其整体散热系数U在静止空气中应当不超过0.75瓦/平方米•摄氏度。
若业主要求，投标人应当将其测试结果提交给业主，以证明其所用材料的散热性能。
隔音要求：
如果要求有隔音措施，那么其应当有一个隔音系数（NRC），根据美国材料试验协会（ASTM）制定的C423标准，该系数应当不低于0.85。若业主要求，投标人应当将相关测试结果提交给业主，以证明其所用材料的隔音性能。
耐候性要求：
所有壁板和屋顶在完成后应当是防风、防雨、防尘的。
在设计隔热壁板时，应当采取预防措施使这些都能够排出表面，避免它们在各个组装层之间沉积。
4.4.3.23.7 储存
所有壁板材料、组件、扣件、以及其他零件应当离地储存，将其遮蔽，置于干燥、适合其存放的环境中。
投标人应当将与业主一道安排未使用的材料的临时存储点，并且有责任适当的存放、保管这些材料以防止其损坏、消耗等。材料的所有保管费用已经包含在合同价格中。
4.4.3.23.8 材料与设计（细节？）
金属板
金属薄板应当是钢板的，且能够与装修后的整体兼容。冷轧钢板应当满足美国材料试验协会（ASTM）所制定的A446，B级 G90“镀锌薄钢板”的标准。欧洲规范EN10142号标准：1990，EN10147号标准：1992电镀锌275克/平方米。根据EN10142：1990的两面三点测试。
金属的厚度应当符合以下要求：
a）金属厚度应当根据负载要求决定，但是应当不少于根据下表的扁梁宽度得到的相应的厚度。珠缘可能被归入平面以减少扁梁宽度。
3英寸扁梁 4英寸扁梁 6 英寸扁梁
美国标准平均值22 美国标准平均值20 美国标准平均值18
b）无论负载和净跨如何，只要钢板是按照负载和净跨要求焊接的，其厚度最小是0.72毫米额定TCT，最大为0.85毫米TCT。
金属板饰面
壁板、屋顶、贴面、遮雨板、排水沟的中用到的饰面应当是下面所提到的几种涂层中选择，螺旋形是首选形状，然后再根据“涂层测试”的相关要求进行改变。
饰面涂层由聚偏二氟乙烯加、双面两层的聚偏氟乙烯作为屋顶与壁板内外双面的底漆，无论该屋顶和壁板是否隔热。
“聚偏二氟乙烯”作为顶漆材料，是将一种双层的“Kynar认证的聚偏二氟乙烯”材料，其含有80%或者80/2比例的氟碳化合物（聚偏氟乙烯），应用于根据金属壁板的规格要求所制造的特定的钢板的面上，以及与前述所提到的钢板的要求相同的屋顶材料上。
干膜的总厚度为48微米，包括防腐蚀的环氧树脂的底漆和Kynar500认证的聚偏二氟乙烯顶漆。
背面的颜色应当是浅灰色，或者是标准的制造商提供的浅灰。钢材最终的涂层颜色应当交由雇主或者业主进行确定。
隔音处理
对隔热的壁板、屋顶需要进行隔音处理，在中间的芯板上凿满直径3.00毫米，以五毫米三角形为间距排列的孔，以此来达到前述的不低于0.85的NRC值的标准。
隔热
隔热的壁板或者屋顶（外墙和电气室）应当达到如下隔热标准：
材料：最小密度为60千克/立方米的纤维玻璃、矿石或者熔渣。
顶部隔热应当完全由150微米厚的聚乙烯保护层密封。
隔热层的厚度：若无特别说明，则至少为3.75厘米。
4.4.3.23.6 DESIGN REQUIREMENTS
STRUCTURAL REQUIREMENTS
The Bidder shall be fully responsible for the design of siding, roofs and interior walls to withstand the specified loads, without exceeding the maximum allowable unit stresses according to AISI, and without exceeding the allowable deflections as specified in paragraph below. Subgirts shall be used for all insulated siding. Panels may be designed as continuous over two or more spans, according to the girt or purlin spacings covered.
The Bidder shall have qualified engineers to perform or supervise the design work.
Fasteners for attaching siding, roof and interior wall component to each other and to grits and other structural supports shall be designed to withstand the specified loads without exceeding maximum allowable unit stresses for such fasteners.
The Maximum allowable deflection for insulated or uninsulated siding, roofs or interior walls subjected to the design loads shall not exceed 1/180 of the clear span between grits or purlins, in the direction normal to the plane of the siding, roof or interior wall.
Design wind loads shall conform to all applicable requirement of ANSI A58.1, with wind loads based on a basic wind speed of 120 km/hr, and the minimum design live load for the roof deck shall be 100 kg/m2.
The maximum fibre stress shall not exceed for the foregoing specified deflection 14 kg/m2 for steel panels.
THERMAL REQUIREMENTS
The overall coefficient of thermal transmission U for insulated siding, roofs and interior walls shall not exceed 0.75 watt/m2 °C in still air.
Test data shall be submitted to Owner if requested to substantiate Bidders claims as to the thermal properties of his materials used for construction.
ACOUSTIC REQUIREMENTS
If acoustically treated areas are required, they shall have a Noise Reduction Coefficient (NRC), in conformance with ASTM C423, of not
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less than 0.85 and the Bidder shall submit a test report to the Owner if requested to support his claims for the NRC value of his materials used for construction.
WEATHERTIGHTNESS
All completed siding and roofs shall be weather watertight and dust tight.
Provision shall be made, in the design of insulated siding to drain to the exterior of siding of any condensation forming within the assemblies.
4.4.3.23.7 STORAGE
All siding materials, components, fasteners and other accessories shall be stored dry, off the ground and under protective cover, in a satisfactory manner.
The Bidder shall arrange with the Owner for temporary storage of materials not erected, and shall be responsible for storing these materials in such a manner as to preclude damage, deterioration, etc. All costs for such protection shall be included in the Contract Price.
4.4.3.23.8 MATERIALS AND DETAILS
METAL SHEETS
Metal sheets shall be of steel and be compatible with the coat finish system. Cold rolled steel sheets of structural quality shall confirm to the requirement of ASTM A446, Grade B, G 90 "Zinc Coated Steel Sheets". European Norm EN 10142 : 1990, EN. 10147: 1992 with galvanize Z 275 gr/m2. Two side at three point test accprding to EN 10142: 1990.
The metal thickness shall comply with one of the following requirements.
a) Metal thickness shall be determined from the defined loading
requirements, but shall be not less than that determined from the
width-of-flat surface in accordance with the following table. Beads
may be incorporated into flat surface to reduce the width-of-flat.
3-inch flat 4-inch flat 6-inch flat
USStd. 22'ga US Std. 20 ga US Std. 18 ga
b) The thickness shall be minimum 0.72 mm nominal thickness (TCT)
up to maximum 0.85 mm TCT regardless of loading and span when
sheets are fluted as required for loading and span.
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PART 4.4 Civil Works 4.4.3 Technical Specification
METAL SHEET FINISHES
Finish of siding, roofing, trim, flashing and gutter shall be one of the following specified coatings, coil coated on the sheets metal prior to forming, and modified as necessary to comply with the requirements defined in section "Coating Test".
Finish coating shall comprise of PVF2 Plus, a double-two layer polyvinylidene fluoride applied on primer for both exterior and interior surface on insulated or uninsulated roof and wall panels.
The "PVF2 Plus" acting as top coat, is a double coated "PVF2 Kynar 500", a 80 % or 80/20 fluorocarbon (polyvinylidene fluoride) applied to the special steel substrate in accordance with the requirements of the metal siding and roofing fabricator but conform with the metal sheet requirement as stipulated on previous section.
Total dry film thikness of min. 46 microns composed of both an epoxy corrosion inhibitive premier and the top coat PVF2 plus Kynar 500.
The color of reverse side shall be light gray or standard manufacturer's light gray. The final colour coat of steel cladding shall be submitted to the employer / owner for approval.
Acoustic Treatment
Where an acoustic treatment is required for insulated siding, or roofing, the interior sheet shall be fully perforated with 3.0 mm diameter holes and 5 mm triangle spacing that will provide NRC value of not less than 0.85 as specified in Clause mentioned before.
INSULATION
Where insulated siding & roof (external wall & electrical room) is indicated, the insulation shall conform to the following requirements:
Material: shall be fibrous glass, rock or slag with minimum density of 60 kg/m3.
The roof insulation shall be reinforced on down face with vinyl or aluminum foil. The thickness of vinyl shall not be less than 0.01 mm and the thickness of aluminum shall not be less than 0.0025 mm.
The wall insulation shall be completely enclosed with minimum 150-micron thick polyethylene protective cover.
Thickness of insulation: shall be a minimum of 3.75 cm if not otherwise stated.
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