您好!欢迎光临冠县伟通交通设施有限公司,我们竭诚为您服务!
定制咨询热线18769562222
您的位置:主页 > 新闻动态 > 行业新闻 >

新闻动态

联系我们

波形护栏生产厂家-高速波形护栏多少钱一米-冠县波形护栏价格-冠县伟通交通设施有限公司

邮 箱:
手 机:18769562222
电 话:18769562222
地 址:聊城开发区

高速公路波形护栏的规格标准

发布时间:2020-09-07 15:43:48人气:
  高速护栏板的形式和尺寸应符合要求。采用钢板或钢带冷弯成型,一次冲孔完成。在波纹梁的搭接部分,可采用等截面或变截面。柱采用型钢制作,其形状和尺寸应符合要求。注:重型车辆占用率高,失控车辆过行车道会造成严重交通事故时,可采用直径140×4.5的圆柱。活动护栏的设置高度应与波形梁护栏的设置高度一致
 
  高速护栏板材料:
 
  1路侧及中央分隔带波形梁护栏所用各种材料应符合下列要求:
 
  (1)护栏板、立柱、隔板、端梁、连接螺栓所用钢材为普通碳素结构钢(Q235),其技术条件应符合《碳素结构钢技术条件》(GB700-88)的要求
 
  (2)护栏板拼接采用高强度螺栓,材质为20MnTiB。技术条件应符合《钢结构用扭剪型高强度螺栓连接副》(gb3632-3633-83)的规定
 
  (3)防堵块材料可采用型钢,其技术条件应符合《冷弯型钢技术条件》(gb6725-86)的规定
 
  (4)柱埋入混凝土时,混凝土等级不应低于15级。混凝土材料应符合现行交通行业标准《公路桥涵施工技术规范》(jtj041-89)的规定。
 
  2材料防腐功能要求:
 
  (1)波形梁护栏所有冷弯型钢件均应进行防腐处理。一般情况下,可采用热浸镀锌。热浸镀锌所用锌应为《锌锭》(gb470-83)中规定的0号或1号锌。波形梁护栏的锌转移量为600(g/m2),对于波形梁、端梁、隔板、立柱和钢块。螺栓、螺母、垫圈、锚固件应为3050(g/m2)。
 
  (2)热浸镀锌后,螺栓、螺母等紧固件必须清洗或离心分离。在条件允许的情况下,螺栓、螺母等紧固件也可采用粉末镀锌工艺
 
  (3)高速护栏板中活动护栏的防腐处理原则上与波形梁护栏相同。采用热浸镀锌时,要求镀锌量为600g/m2
 
  The form and size of high-speed guardrail board shall meet the requirements.It shall be formed by cold bending of steel plate or strip steel and completed by punching at one time.In the overlapping part of corrugated beam,equal section or variable section can be adopted.The column shall be made of section steel,and its shape and size shall meet the requirements.Note:when the occupancy rate of heavy vehicles is high,and the out of control vehicles will cause serious traffic accidents when they cross the travel lane,the circular column with diameter of 140×4.5 can be used.The setting height of movable guardrail should be consistent with that of corrugated beam guardrail
 
  For high speed guardrail board materials:
 
  1.Various materials used for corrugated beam guardrail of roadside and central divider shall meet the following requirements:
 
  (1)The steel used for guardrail board,column,diaphragm,end beam and connecting bolt is ordinary carbon structural steel(Q235),and its technical conditions shall meet the requirements of technical conditions for carbon structural steel(GB700-88)
 
  (2)High strength bolts shall be used for splicing guardrail plates,and the material can be 20MnTiB.The technical conditions shall comply with the provisions of"torsional shear type high strength bolt connection pairs for steel structures"(gb3632-3633-83)
 
  (3)The material of anti blocking block can be made of section steel,and its technical conditions shall conform to the technical conditions for cold formed steel(gb6725-86)
 
  (4)When the column is embedded in concrete,the concrete grade shall not be less than 15.The materials for concrete shall comply with the provisions of the current traffic industry standard"technical code for construction of highway bridges and culverts"(jtj041-89).
 
  2.Requirements for material anti-corrosion function:
 
  (1)All the cold-formed steel parts of corrugated beam guardrail shall be treated with anti-corrosion treatment.Generally,hot-dip galvanizing can be used.The zinc used for hot-dip galvanizing shall be No.0 or No.1 zinc specified in zinc ingot(gb470-83).The zinc transfer amount of corrugated beam guardrail shall be 600(g/m2)for corrugated beam,end beam,diaphragm,column and steel block.Bolts,nuts,washers,anchors shall be 3050(g/m2).
 
  (2)After hot-dip galvanizing,bolts,nuts and other fasteners must be cleaned or centrifugally separated.If conditions permit,powder zinc plating technology can also be used for bolts,nuts and other fasteners
 
  (3)The anti-corrosion treatment of movable guardrail in high-speed guardrail plate is the same as that of corrugated beam guardrail in principle.When hot-dip galvanizing method is adopted,the galvanized amount is required to be 600g/m2
18769562222