GB/T 31067-2014Technical code for protection of bridge against lightning (English PDF)

GB/T 31067-2014 is the English-translated version of 桥梁防雷技术规范.

GB/T 31067-2014 is the technical code for the protection of bridges against lightning. Clause 1 states that the standard specifies the content of bridge lightning protection design and construction, of the quality inspection and acceptance of lightning protection engineering works, and of maintenance and management.

The same clause applies it to the lightning protection design, construction, inspection and lightning protection devices of new, reconstructed and expanded girder bridges, arch bridges, rigid frame bridges and suspension bridges and of other steel or reinforced concrete structure bridges, with one further bridge type the draft prints as the bare word bridge, and to their maintenance and management; it states expressly that it does not apply to wooden or masonry bridges, overpasses, pedestrian bridges, viaducts or high-speed railway bridges, and adds that already-built bridges found by risk assessment to carry a lightning disaster risk may refer to the standard.

The contents list runs 1 Scope, 2 Normative references, 3 Terms and definitions, 4 lightning protection design, which the draft labels mine design, with subclauses on general provisions, air terminals, deflectors, ground, lightning equipotential bonding and electrical and electronic systems, 5 lightning protection construction with the same six headings plus 5.7 on safety regulations at the bridge construction site, 6 quality inspection and acceptance of the lightning protection engineering works with subclauses on general provisions, quality inspection items, the acceptance procedure and the quality inspection and acceptance criteria, and 7 Maintenance and management.

Eleven appendices follow, of which the page marks Appendix A on the materials, structures and minimum sections of bridge air terminals and deflectors and Appendix C on the calculation of lightning sideswipe bridge height as normative, and the rest informative, covering among other things tower lightning device setting, overall installations, ground resistance testing, pier foundation grounding devices, cable-stayed or main cable installation, auxiliary artificial ground plates at piers, bonding at expansion devices, reinforced concrete box devices, and an inspection record table.

Clause 3 adopts the definitions of GB J124, GB 50057 and GB/T 21714.3 and adds its own, beginning with girder bridge, a bridge whose main upper load-bearing elements are beams or joists, after which the draft breaks off.

Clause 2 cites GB/T 18365, GB 18802.1, GB/T 18802.12, GB/T 18802.21, GB/T 18802.22, GB/T 21431, GB/T 21714.3, GB/T 21714.4, GB 50057, GB 50300, GB 50303, GB 50343, GB 50601, CJJ 2, CJJ 99, GB J124 and JGJ 46.

The page records the standard as administered by the National Lightning Protection Standardization Technical Committee (SAC/TC258) and drafted by the Chongqing City Lightning Protection Center.

It has applied since 1 June 2015; the page gives two different issue dates, so none is stated here.

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This preview omits tables, figures, formulas and parts of the technical clauses. The complete document — 30 pages — is available in the English PDF.

GB/T 18365-2018|GB/T 36483-2018|GB/T 31438-2015|GB/T 17955-2009

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