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混凝土加固用钢筋 可焊钢筋 棒材、卷材和开卷产品检测项目报价? 解决方案? 检测周期? 样品要求? |
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本规范适用于工业与民用建筑和一般构筑物的钢-混凝土组合结构工程施工及验收。
本标准规定了钢筋电渣压力焊机的产品型式和基本参数、安全要求、技术要求、检验规则、标志、包装及贮存等要求。 本标准适用于现浇钢筋混凝土结构中,直径范围为14mm~40mm钢筋竖向对接的电渣压力焊机。用于钢筋预埋件焊接的电焊机,亦可参照执行本标准。 按本标准要求设计的产品,仅适用于人员使用。
This standard defines types and their facings, dimensions, materials, manufacturing processes, marking and naming of line blanks. These are made with or without bore and are used in between flange joints of piping (e. g. acc. to DIN EN 13480 series) and pressure vessels (e. g. acc. to DIN EN 13445 series). The line blanks are determined for the application with flanges acc. to DIN EN 1092-1 for nominal pressures PN 6 to PN 160 and facing type A, type B, type C and type D.
This standard describes the technical delivery conditions and dimensions as well as the maximum allowable pressure at the maximum allowable temperature TS for the following piping components: - pipes, seamless or welded; - pipe fittings (tees, reducers, elbows, dished ends, reinforced branches and caps), - flanges Type 05 (blind flange) and Type 11 (welding neck flange); - fasteners (bolts, stud bolts, nuts and washers).
The document specifies the requirements and tests of stainless steel expansion joints with bellow units to DN 500 and MOP 16 bar, which work with gazes according to DVGW G 260.
This Standard applies to the installation and monitoring of permanent and temporary ground anchors. It covers anchors which are able to be stressed and are able to be tested in accordance with EN ISO 22477-5. The planning and design of ground anchors calls for experience and knowledge in this specialised field and although these topics are covered briefly in EN 1997-1 Eurocode 7 : Geotechnical Design, Part 1 : General Rules. This Standard does not address alternative systems of anchoring such as tension piles, screw anchors, mechanical anchors, soil nails, expander anchors or deadman anchors.
This part 1-2 of EN 1994 deals with the design of composite steel and concrete structures for the accidental situation of fire exposure and is intended to be used in conjunction with EN 1994-1-1 and EN 1991-2-2. This Part 1-2 only identifies differences from, or supplements to, normal temperature design.
This European Standard specifies general requirements and definitions for the performance characteristics of weldable reinforcing steel used for the reinforcement of concrete structures, delivered as finished products in the form of: bars, coils (rod, wire) and decoiled products, sheets of factory made machine welded fabric, lattice girders. Steels according to this standard have a ribbed, indented or smooth surface.
This European Standard is for prefabricated reinforced components of autoclaved aerated concrete to be used in building construction for: a) Structural elements: - loadbearing wall components; - retaining wall components; - roof components; - floor components; - linear components (beams and piers). b) Non-structural elements: - non-loadbearing wall components (partition walls); - cladding components (without fixtures) intended to be used for external facades of buildings; - small box culverts used to form channels for the enclosure of services; - components for noise barriers. Depending on the type and intended use of elements for which the components are utilized, the components can be applied - in addition to their loadbearing and encasing function - for purposes of fire resistance, sound insulation and thermal insulation indicated in the relevant clauses of this European Standard. Components covered by this standard are only intended to be subjected to predominantly non-dynamic actions, unless special measures are introduced in the relevant clauses of this European Standard. The term "reinforced" relates to reinforcement used for both structural and non-structural purposes. This European Standard does not cover: - rules for the application of these components in structures; - joints (except their strength and integrity E of resistance to fire); - fixtures; - finishes for external components, such as tiling. NOTE AAC components may be used in noise barriers if they are designed to fulfil also the requirements of EN 14388.
This European Standard give common requirements for execution of concrete structures, it applies to both in-situ works and construction using prefabricated concrete elements.This standardexpects the execution specification to state all the specific requiements relevant to the particular structure.
This European standard establishes general principles for the construction of special geotechnical works involving soil nailing. Soil nailing is a construction technique used to enhance/maintain the stability of a soil mass by the installation of passive inclusions (soil nails).
This part of ISO 17660 is applicable to the welding ofweldable reinforcing steel and stainless reinforcing steel of load-bearing joints, in workshops or on site. It specifies requirements for materials, design and execution of welded joints, welding personnel, quality requirements, examination and testing.This part of ISO 17660 also covers welded joints between reinforcing steel bars and other steel components, such as connection devices and insert anchors, including prefabricated assemblies. Non load-bearing joints are covered by ISO 17660-2.This part of ISO 17660 is not applicable to factory production of welding fabric and lattice girders using multiple spot welding machines or multiple projection welding machines.The requirements of this part of ISO 17660 are only applicable to static loaded structures.NOTE For fatigue-loaded structures, depending on type of joint and welding process, it is recommended that an appropriate reduction be taken into account on the fatigue strength of the reinforcing steel.
This part of ISO 17660 is applicable to the welding of weldable reinforcing steel and stainless reinforcing steel of non load-bearing welded joints, in workshops or on site. It specifies requirements for materials, design and execution of welded joints, welding personnel, quality requirements, examination and testing.Load-bearing welded joints are covered by ISO 17660-1.
1 This European Prestandard specifies requirements for the chemical composition and the mechanical and geometrical properties of weldable ribbed reinforcing steel in Grade B500, categories A and B (designated as steels B500A and B500B, see table 1) used for the reinforcement of concrete structures in the form ofn- bars and coils or as elements for the manufacture of welded fabric,n- sheets of factory-made machine-welded fabric in the diameter ranges given in table 1.n2 This European Prestandard does not apply ton- non-weldable reinforcing steel;n- plain round or indented reinforcing steel;n- lattice girders;n- prestressing steels (see EN 10138).
This Singapore Standard specifies requirements for ribbed weldable reinforcing steel used for the reinforcement of concrete structures.
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