PSJ29R1钢结构混凝土防火保护.docx

1、PSJ29R1钢结构混凝土防火保护 STONE & WEBSTER石伟 PROJECT SPECIFICATION 工程规范FOR 之CONCRETE FIREPROOFING OF STRUCTURAL STEEL钢结构混凝土防火保护 Note: This specification has been reviewed by the Chinese Design Institute HQCEC without comment. 注： 本规范已经中国设计院“寰球化学工程公司”审核，无评注。REVISION修订版次012345REV.DESC.审核IFCIFCPREPARER/DATE起草/日期

2、GJM/21 Mar 01GJM/04 Oct 01LEAD ENG./DATE责任工程师/日期GJM/21 Mar 01GJM/04 Oct 01PROJECT ENG./DATE项目工程师/日期JJO/22 Mar 01JJO/04 Oct 01table of contents目录Section章节Title标题Page页码 1. general总则 31.1 scope概述 31.2 REFERENCE CODES AND STANDARDS参考规范及标准 31.3 REFERENCE DRAWINGS参考图纸 4 2. SURFACE PREPAration表面处理 42.1 cle

3、anING AND PRIME COATING清洁工作与底漆涂刷 4 3. MATERIALS AND APPLICATION材料及使用 53.1 FORMED CONCRETE混凝土模板 53.2 PNEUMATICALLY APPLIED CONCRETE (SHOTCRETE)喷浆混凝土（喷浆混凝土） 63.3 LIGHTWEIGHT FIRE PROTECTION轻型防火保护 63.4 SUPPLY AND STORAGE OF MATERIALS材料供应与保管 73.5 APPLICATION施工方法 73.6 CURING AND FINISHING养护与表面修整 73.7 sEA

4、LING密封 8 4. DETAILED REQUIREMENTS详细要求 84.1 VESSEL SKIRT DETAILS容器设备裙座详细要求 8 5. INSPECTION检查 95.1 GENERAL总则 95.2 PROTECTED WORK & EQUIPMENT工程与设备的保护 95.3 APPROVAL审批 9 6. PROTECTION保护措施 96.1 EQUIPMENT & STRUCTURAL MEMBERS设备与结构构件 106.2 WEATHER PROTECTION气候保护 10 1. general总则1.1 scope概述1.1.1 This specific

5、ation covers the requirements for materials, preparation, installation and finishing of fireproofing of steel structures, pipe supports, vessel supports, and to vessel skirts applied at site.本规范叙述了对现场钢结构、管道支撑及容器设备支撑和容器设备裙座支撑的防火保护的有关材料、准备、安装以及竣工等方面的要求。1.1.2 The Contractor shall supply all necessary m

6、aterials, labor, equipment, tools and services for furnishing, installation and finishing of fireproofing.承包商应为防火保护设施的配备及其安装与竣工提供所有必需的材料、劳力、设备、工具及服务。1.1.3 Structures and supports to be fireproofed shall be specified on a fireproofing schedule and/or general arrangement drawings denoted by F or F*. I

7、n these cases concrete shall be applied to the bottom 2m of columns and lightweight cementitious product applied to all other areas.要求进行防火保护的结构与支撑应在防火保护计划中给予说明，并/或在总布置图中标注“F”或“F*”。在这些情况中，立柱底部2米处应使用混凝土，其它地方则使用轻型类水泥材料。1.1.4 For extent of fire protection system to vessel skirts refer to Appendix A of t

8、his specification. Fire protection for vessel skirts is to be concrete and applied at site.关于容器设备裙座防火保护系统的范围参见本规范附录“A”。容器设备裙座防火保护应为现浇混凝土。1.1.5 All fire protection systems shall give a minimum of 2.5 hours protection when exposed to a hydrocarbon fire and shall comprise of the following:当发生烃燃烧时，所有防火保

9、护系统应至少具备2.5小时的防火保护能力，且应以下部分组成：a. Concrete applied 50mm thick minimum to a height of 2.0m above grade on columns passing to grade, where these columns are exposed such that the fireproofing can be damaged by vehicles. When this is not the case lightweight fireproofing may be used for whole columns.当立

10、柱露出地面且其防火保护有可能会被过往车辆损坏时，立柱高出地面2.0米处至少应浇筑50毫米厚的混凝土。其它情况中所有立柱需整体使用轻型防火保护。b. Concrete applied 50mm thick minimum to vessel skirts/legs as detailed in AppendixA.容器设备裙座/柱腿须使用至少50毫米厚混凝土，具体说明见附录“A”。c. Lightweight vermiculite/cement product (FendoliteMII or Mandoseal or similar) applied to steelwork 40mm th

11、ick minimum. Density not to be greater than 775 Kg/m3.轻型蛭石/水泥材料适用于大于40毫米厚的钢结构。其比重不能超过775千克/米3。1.1.6 For additional fire protection details refer to the reference drawings listed in Clause 1.3. Further instructions/details may be found on the steelwork general arrangement drawings.有关辅助防火保护，具体说明见1.3条中

12、所列参考图纸。其它说明/具体说明，见钢结构总布置图。1.1.7 Contractor shall provide the Purchaser with a method statement for the site application of the fire protection system along with materials to be used.承包商应向货主提供防火保护系统现场使用方法说明书，随所用材料一并附送。1.2 REFERENCE CODES AND STANDARDS参考规范及标准The following is a list of applicable docum

13、ents releting to the work in this specification. If there is, or appears to be, a conflict between this specification and a referenced document, the matter shall be referred to the Engineer. The latest edition and addenda in effect on January 29, 1996 shall be used for 1.2a and 1.2b; however, for 1.

14、2c latest approved issued shall apply.以下所列为适用于本规范中所涉及施工的相关文献资料。如遇有本规范与参考文献相冲突时，则应咨询相关工程师。关于1.2a和1.2b，应使用1996年元月29日生效的最新版本及其附录；而1.2c则应使用已经审批并颁布的最新版本。a. AmericanSocietyforTestingandMaterials(ASTM) 美国材料检验协会1) A185, Specification for Steel Welded Wire Fabric, Plain, for Concrete Reinforcement钢焊钢丝网栅混凝土钢筋

15、规范2) C33, Specification for Concrete Aggregates混凝土集料规范3) C150, Specification for Portland Cement波特兰水泥（普通硅酸盐水泥）规范b. AmericanConcreteInstitute(ACI)美国混凝土协会1) 301, Specification for Structural Concrete for Buildings建筑混凝土结构规范2) 506.2, Specification for Materials, Proportioning, and application of Shotcre

16、te喷浆混凝土的材料、配比及使用规范c. Project Specifications工程规范1) Spec.-J22, Concrete Mix Design and Testing混凝土搅拌设计与检验2) Spec.-J23, Mixing and Delivering Concrete混凝土搅拌与运送3) Spec.-J24, Placing Concrete and Reinforcing Steel浇筑混凝土与混凝土钢筋4) Spec.-N150, Painting of Exterior Surfaces 外表面油漆涂刷5) Spec.-N109, Selection of Fir

17、eproofing防火保护的选择1.3 REFERENCE DRAWINGS参考图纸300-10-671, Standard Details for Fire Protected Steelwork钢结构防火保护标准细则2. SURFACE PREPAration表面处理2.1 cleanING AND PRIME COATING清洁工作与底漆涂刷2.1.1 Steel surfaces to be in contact with concrete fireproofing shall be cleaned of oils, dirt, or any other foreign materia

18、l by solvent and then blast cleaned to receive a prime coat in accordance with Specification N150.与混凝土防火材料接触的钢结构表面应按规范N150使用溶剂进行去除油污、尘土及其它杂质，然后进行冲沙除锈后才可进行底漆涂刷。2.1.2 Galvanized steel surfaces need not be blast cleaned, but shall be cleaned of oils, dirt and other foreign material.钢结构镀锌表面无须进行冲沙清洁，但须去除

19、表面油污、尘土及其它杂质。2.1.3 Damaged areas of galvanizing/primer shall be made good before the reinforcement is fitted.镀锌/底漆受损处须在钢筋混凝土浇筑前修补完好。3. MATERIALS AND APPLICATION材料及使用3.1 FORMED CONCRETE混凝土模板3.1.1 All concrete shall be furnished in accordance with the requirements of Specifications J22 and J23.所有混凝土的施

20、工须符合规范J22及J23的要求。3.1.2 The fireproofing concrete shall be reinforced by:防火混凝土须通过以下方法进行加强：a. 50 mm x 50 mm (2 x 2) - W0.5 x W0.5 welded wire fabric in accordance with ASTMA185 or an approved equal reinforcing material secured to and supported by slab bolsters, nuts, eyes or studs welded to the surfac

21、e to be fireproofed with a maximum longitudinal spacing of 24 inches (610 mm).按ASTMA185要求焊制的50 mm 50 mm (2 2) - W0.5 W0.5钢丝网栅或同等被批准确认的加强材料通过混凝土石板垫、螺母、小孔或螺栓焊接到需进行防火保护的表面进行固定和支撑，其最大纵距为24英寸（610毫米）。b. Reinforcing shall be placed within the middle 3/4 inch (20 mm) of the concrete depth.加强材料应置于混凝土3/4英寸（20

22、毫米）深处。c. Reinforcing shall be lapped 3 inches (75 mm) minimum at all joints and tied on 12-inch (305 mm) centres.所有接头处加强材料的搭接长度至少应有3英寸（75毫米），接头应位于12英寸（305毫米）中心处。d. If top flange of fireproofed steel is to be left exposed, the end of the fabric shall be attached to the bottom of the top flange as sho

23、wn on Engineers drawings.当防火保护钢结构的顶部凸缘须暴露在外时，则应按工程图纸将钢筋网栅端与防火保护钢结构顶部凸缘的底部相连接。3.1.3 Vibration shall be employed to ensure the fireproofing will have a smooth surface free from voids and irregularities.应通过振捣保证防火保护表面的平整度，且不应有空穴和不规则现象。3.1.4 For shop fireproofed steel, all connection points of structural

24、 steel to be left open for field connections shall be kept free of fireproofing by blockouts with dimensions sufficient to provide a minimum of 6-inch (150 mm) clearance from the centreline of connection bolts and 8-inches (200 mm) clear from top of base plates for anchor bolt installation. The rein

25、forcement shall be extended 3 inches (75 mm) into the blockout opening for field splice.对于车间内预制的防火保护钢结构，所有需留待现场连接的钢结构连接点应使用足够尺寸的阻断材料将其与防火保护隔开，离连接螺栓中心线至少有6英寸（150毫米）的间距，离安装地脚螺栓的底板有8英寸（200毫米）的间距。混凝土钢筋应伸入阻断材料开口端3英寸（75毫米）以待现场连接。3.1.5 For shop fireproofed steel, blockouts for field connections shall be fi

26、lled in with concrete fireproofing by field personnel after the erection of the structure is completed in accordance with structural steel erection specification.对于车间内预制的防火保护钢结构，现场施工人员应根据钢结构安装规范在钢结构安装完工后用混凝土防火材料将为留待现场连接钢结构而使用的阻断间隔填上。3.1.6 Hand trowelled application may be used on small or irregular

27、surfaces.表面较小或不规则区域的施工可使用手工镘刀。3.1.7 Reinforcement of field filled blockouts shall be the same as specified in 3.1.2. Reinforcement shall be lapped and secured to the exposed shop reinforcement and properly supported the same as specified in Section 3.1.2.现场填塞阻断材料间隔处的加强钢筋应与3.2.1节中指定的钢筋类型相同，该加强钢筋应与外露的

28、车间预制加强钢筋进行搭接并应固定好，其支撑同3.1.2节中的规定。3.2 PNEUMATICALLY APPLIED CONCRETE (SHOTCRETE)喷浆混凝土（喷浆混凝土）3.2.1 Pneumatically applied concrete may only be used when approved by the Engineer prior to installation.喷浆混凝土的使用须在安装前征得工程师的同意。3.2.2 Shotcrete shall have a compressive strength of 3000 psi (210 kg/cm2) at 28

29、days in accordance with ACI 506.2.根据ACI 506.2.，喷浆混凝土经过28天的养护后应达到3000磅/英寸2(210千克/厘米2)的耐压强度。3.2.3 Reinforcing shall conform to requirements set forth in Paragraph 3.1.2.加强材料的施工须遵循3.1.2节中的要求。3.2.4 Fireproofing shall be placed in accordance with ACI 506.2.防火保护材料的敷设应符合ACI 506.2.。3.2.5 After completion of

30、 application, all rebound and overspray material shall be cleaned up and surfaces of other equipment and structures shall be restored to their original condition.敷设完工后，须清除回弹及喷溅浆料，并将设备和结构的表面恢复到原先干净状态。3.3 LIGHTWEIGHT FIRE PROTECTION轻型防火保护3.3.1 The products used shall be an approved Vermiculite and por

31、tland cement premix suitable for use in Hydrocarbon fires (FendoliteMII and Mandoseal or similar approved) and which can be sprayed and/or hand applied.所使用的产品应为审批过的蛭石与波特兰水泥的预搅拌料，能适用于烃燃烧环境中（FendoliteMII和Mandoseal或类似经审批材料），能进行喷洒敷设和/或手工敷设。3.3.2 Reinforcement (lightweight fire protection) to be 50 x 50 x 1.4mm plastic coated galvanized mesh.The pins shall be welded to the structural steelwork sections at a maximum spacing of 400mm (16) to suit the profile of the section, (in the shop prior to galvanizing or painting).加强材料（轻型防火保护）须为50 50 1.4毫米塑料镀锌网栅。焊在钢结构表面的保温钉的最大间距