BS 10

Flanges

to BS 4504 Part 1:1969

SABS 1123:1977

BS 10:1962

Table

BoltPCDMassDbd3fNo.d1sizekg

BS45046/380,012,040,02,0411,0M1055,00,35

10/395,014,045,02,0414,0M1265,00,59

16/395,014,045,02,0414,0M1265,00,59

25/395,016,045,02,0414,0M1265,00,6940/395,016,045,02,0414,0M1265,00,69

SABS1123600/380,010,040,02,0411,0M1055,00,29

1000/395,010,045,02,0414,0M1255,00,42

1600/395,010,045,02,0414,0M1265,00,42

2500/395,014,045,02,0414,0M1265,00,604000/395,014,045,02,0414,0M1265,00,60

BS 10 T/D95,34,8--414,312,766,70,67

T/E95,36,3--414,312,766,70,67T/F95,39,5--414,312,766,70,67

ANSI B 16,5150lb88,911,134,91,6415,912,760,30,89

E. & O.E.Steel Flanges

15 mm Nominal Bore. Pipe OD 21,3

FlangeRaised FaceHoles

TableBoltPCDMassDbd3fNo.d1sizekg

BS45046/390,014,050,02,0411,0M1065,00,53

10/3105,016,058,02,0414,0M1275,00,85

16/3105,016,058,02,0414,0M1275,00,85

磁致伸缩导波在桥梁索体结构检测中的应用研究

摘 要：缆索桥梁因具有跨越能力强、结构轻盈、造型美观等优点而被城市桥梁广泛采用，缆索系统是桥梁结构的主要承重构件也是结构的薄弱点，缆索系统的健康检测对维持桥梁有效运营具有重大作用。磁致伸缩导波无损检测技术拥有远距离检测、不会破坏构件、不受构件尺寸限制等优点，已经广泛应用于拉（吊）索桥梁锚固区的无损检测中。本文主要介绍磁致伸缩导波检测原理、检测设备以及实际工程应用，列举了大佛寺长江大桥、桃夭门大桥以及金塘大桥采用磁致伸缩导波检测桥梁索体结构的应用效果。

关键词：磁致伸缩导波；桥梁索体；无损检测；

1 引言

21世纪以来，缆索桥梁因具有跨越能力强、结构轻盈、造型美观等优点而被城市桥梁广泛采用，如斜拉桥、悬索桥等。缆索系统作为缆索桥梁的主要承重构件，是桥梁结构中的薄弱处，容易在外界环境的侵蚀下破坏损伤，进而影响桥梁结构性能及耐久性[1]。所以要求桥梁管养部门加强对缆索桥梁的日常养护和检测，提前发现缆索系统的安全隐患，保证缆索系统处于安全健康的状态[2]。

拉（吊）索桥梁锚固区由于其构造的限制，很少能够检测到，成为桥梁检测的薄弱部位；磁致伸缩导波技术是桥梁缆索无损检测技术的一种，将其应用于桥梁缆索扫描，可以快速得到桥梁损伤情况。实现现代城市桥梁无盲区检测。磁致伸缩导波无损检测技术拥有远距离检测、不会破坏构件、不受构件尺寸限制等优点，故将其应用于拉（吊）索桥梁锚固区的无损检测中。本文介绍磁致伸缩导波的桥梁拉索锚固系统无损检测技术原理、设备与重庆大佛寺长江大桥、桃夭门大桥、金塘大桥拉索锚固系统无损检测应用，为今后相关研究应用提供参考。 2 磁致伸缩导波检测原理

磁致伸缩导波检测原理的基础是磁致伸缩(或Joule)效应及其逆(或Villari)效应[3]。磁致伸缩效应是指由外部施加的磁场引起的铁磁材料物理尺寸的微小变化(在碳钢中约为百万分之几)。对于磁致伸缩导波检测，它依赖于逆磁致伸缩(Villari)效应，指由机械应力(或应变)引起的铁磁材料磁感应的变化。

大智慧双线BS主图指标公式

R1:=MA(CLOSE,1);

R2:=MA(CLOSE,3);

R3:=(MA(R2,1)*1);

R4:=(MA(R2,3)*1);

DRAWTEXT(CROSS(R3,R4),(LOW-0.1),'B'),colorBDB76B;

X1:=(C+L+H)/3;

A51:=3*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1)-2*SMA((C-LLV(L,55))/(HHV(H,55)-LLV(L,55))*100,5,1);

LC:=REF(CLOSE,1);

RSI:=((SMA(MAX((CLOSE - LC),0),3,1) / SMA(ABS((CLOSE -

LC)),3,1)) * 100);

FF:=EMA(CLOSE,3);

MA15:=EMA(CLOSE,21);

DRAWTEXT(CROSS(88,RSI),(HIGH * 1.02),'S'),colorGREEN;

双线持币:HHV(MA(HIGH,(3)),2),LINETHICK2,color00FF00;

单线持股:LLV(MA(HIGH,(3)),1),LINETHICK2,color0000FF;

{以下大笔出货标识}

VARE:=MA(100*(CLOSE-LLV(CLOSE,34))/(HHV(HIGH,34)-LLV(LOW,34)),5)-20;

VAR12:=(HIGH+LOW+CLOSE)/3;

VAR13:=(VAR12-MA(VAR12,14))/(0.015*AVEDEV(VAR12,14));

VAR14:=(VAR12-MA(VAR12,70))/(0.015*AVEDEV(VAR12,70));

VAR15:=IF(VAR13>=150 AND VAR13<200 AND

VAR14>=150 AND VAR14<200,10,0);

STAINLESS STEEL FLANGES

BS 4504 Flanges

~NP = Nominal Pressure 6, 10, 16, 25, 40Nominal pressure 6 bar (1 bar = 105 N/m2)DescriptionNom.PipeFlangeRaised faceDrillingNeckBoss

Size

O.DBoltingSpigotd1Dbh1d4fNo.d2kd3h2rd9d3b1h1017.27512122028352M10411502664-251521.38012122030402M10411553064-302026.99014142432502M10411653864-402533.710014142435602M10411754264-503242.412014162635702M12414905566-60

4048.313014162638803M124141006276-705060.314014162838903M124141107486-806576.1160141632381103M124141308896551008088.9190161834421283M1641815010210870110100114.3210161840451483M1641817013010890130

125139.7240182044481783M16818200155108115160150168.3265182044482023M168182251841210140185200219.1320202244552583M168182802361510190-250273.0375222444603123M1612183352901512237-300323.9440222444623654M2012223953421512285-

350355.64902226-624154M2012224453851512332-400406.45402228-654654M2016224954381512380-450457.25952430-655204M2016225504921512428-500508.06452430-685704M2020226005381512475-600609.67552432-706705M2420267056401612--