steel structures In addition to being simple tofabricate welded connection considerably reduce the size of the joint and the additional fixtures and plates However there is still a demand for structural members to be bolted arising from a requirement to avoid welding because of the service conditions of the member under consideration
8MM Hollo Bolt 5 16 quot HG Lindapter Lindapter Hollo Bolt Expansion Bolt for Structural Steel LHBM08 1 HG Options Hot Dip Galvanized 2 quot 5 16 quot Bolt The store will not work correctly in the case when cookies are disabled
Linear thermal expansion coefficients of metals including aluminum steel bronze iron brass copper gold silver invar magnesium nickel titanium and zinc are given in the following thermal expansion coefficients chart These linear thermal expansion coefficients are room temperature values of metals
5 part High Clamping Force HCF version for higher strength structural connections HOLLO BOLT amp HOLLO BOLT HCF A typical connection is made by inserting the Hollo Bolt into the pre drilled holes of the fixture and hollow section As the bolt head is tightened the cone is pulled up the bolt thread causing the legs of the sleeve to expand until
for attachments to hollow structural section steel and other structural steel framing where access is restricted to one side only In this connection solution a hole is drilled into both steel parts the parts are mated together and the bolt is inserted into the hole and tightened from one side As the bolt core is tightened it expands a sleeve fixing the
Properties of Structural Bolts MINIMUM ASTM DESIGNATION BOLT DIAMETER in MINIMUM TENSILE STRENGTH YIELD STRENGTH ksi ksi 0 2 OFFSET A307 lA307 low carb tlbon steel 1 4 t 41 4 to 4 60 High strength Structural bolts A325 medium carbon steel 1 2 to 1 1 1 8 t 1 1 2 120 105 92 81 A490 alloy steel 1 8 to 1 1 2 to 1 1 2 150 130
2 The Hollo Bolt can be used on a wide variety of steel hollow sections safe working loads shown are based on use in A36 Structural Tube The safe working loads in both tension and shear are appllicable to the Hollo Bolt only Failure of the section particularly on those with thin walls and a wide chord face could occur at a lower figure
THE ORIGINAL EXPANSION BOLT FOR STRUCTURAL STEEL HIGH CLAMPING FORCE € INTERNATIONAL RECOGNITION The British Constructional Steelwork Association BCSA and Steel Construction Institute SCI include the Hollo Bolt as a structural connection in the design guide Joints in Steel Construction a For more information please see pages 22 amp 23
The Research Council on Structural Connections RCSC prepares specifications and documents related to structuralconnections RCSC s Specification for Structural Joints Using ASTM A325 or A490 Bolts 2000 is a widely used specification which discusses joints fasteners limit states installation and inspections Structural Bolting 3
tion of roof expansion joints Where steel framing structural steel or decking change direction Where separate wings of L U and T shaped buildings or similar configura tions exist Where the type of decking changes for example where a precast concrete deck and a steel deck abut Where additions are connected to existing buildings
THE ORIGINAL EXPANSION BOLT FOR STRUCTURAL STEEL As with any structural bolt immediately after installation the bolt relaxes until a typical clamping force is reached The typical clamping force of the Hollo Bolt HCF is over three times higher than the same sized product without the HCF mechanism
ACCEPTANCE CRITERIA FOR EXPANSION BOLTS IN STRUCTURAL STEEL CONNECTIONS BLIND BOLTS AC437 1 0 INTRODUCTION 1 1 Purpose The purpose of this acceptance criteria is to establish requirements for expansion bolts for structural steel connections KHrLQ rIHrrG tR Ds blind bolts to be recognized in an ICC Evaluation Service
1 8 2014 nbsp 0183 32 Assembly of Structural Joints Using High Tensile Steel Bolts was published in January 1951 Since that time the Council has published seventeen successive editions Each was developed through the deliberations and approval of the full Council membership and based upon past successful usage advances in the state of knowledge and changes in
1 Structural steel primer 2 Expansion bolts 3 Headed studs D Mill test reports for each type of structural steel E Mill test reports for high strength bolts nuts and washers including chemical analysis tensile strength tests and hardness tests F Welder Qualifications Submit evidence that welders employed in the work of
Eurocodes Design of steel buildings with worked examples Brussels 16 17 October 2014 EN 1993 Part 1 8 Chapter 1 –Introduction Chapter 2 –Basis of design Chapter 3 –Connections made with bolts rivets or pins Chapter 4 –Welded connections Chapter 5
Lindapter Hollo Bolts are perfectly suited for use in hollow sections tubes and places where access is available from one side only They were awarded the Design Council s Millennium Product status for innovation in 2000 which has made
1 1 1993 nbsp 0183 32 According to EN1991 1 3 167 3 2 6 for calculating the structural effects of unequal temperatures in composite concrete steel structures to EN 1994 the coefficient of linear thermal expansion may be taken as α 10 215 10 6 176 K 1 i e the same as the coefficient of thermal expansion of concrete
An expansion bolt connecting steel structural sections BoxBolt 174 is a steel connection used to bolt 2 steel beams together or other steel structures when access is restricted to one side It is an easy to install and safe solution Go to BoxBolt 174 technical specifications
Structural tube to structural tube sections being connected with an angle bracket Structural tube with drilled end plate being connected to vertical structural tube The core bolt down the center of the BoxBolt connector can be replaced with
Expansion Blind Bolt For Structural Steel Tube BQ2G08 BEISHUO Products Made In China China Manufacturer Expansion Blind Bolt For Structural Steel Tube Our Beishuo expansion bolt for structural steel tube is suitable for use with rectangular square and circular steelwork sections or other types of metalwork where access is restricted to one side only
Browse the list Expansion Bolt Specification Size M12 by 140 x 100mm KAC 790 by 160 x 80mm KAC 800 by 160 x 100mm KAC 810 Tag Expansion Bolt Category SCREWS BOLTS NUTS amp FASTENERS
Made from Class 8 8 high tensile steel to AS1252 standard these bolt assemblies and components are hot dipped galvanised for the ultimate in corrosion protection and come in a huge range of dimension combinations M12 – x 30 to 100mm
14 3 2018 nbsp 0183 32 Multiply the temperature change by 7 2 x 10 6 which is the expansion coefficient for steel Continuing the example you would multiply 0 0000072 by 5 to get 0 000036 Multiply the product of the expansion coefficient and the temperature increase by the original length of
A corollary to this rule is that a highly experienced engineer or structural steel draughtsman will typically be able to draw a final structure and assign quite expansion joints and full sets of roof amp vertical plus 1 for Grade 8 8 bolts and 0 5 for Grade 4 8 bolts
The corrosion of structural steel is an electrochemical process that requires the simultaneous presence of moisture and oxygen Essentially the iron in the steel is oxidised to produce rust which occupies approximately six times the volume of the original material The rate at which the corrosion process progresses depends on a number of
9 5 2012 nbsp 0183 32 Double and Single Expansion Anchor – single expansion anchor is used in harder denser base material and the double expansion anchor is used in softer more suspect type base materials both come in six diameters of 1 4 5 16 3 8 1 2 5 8 and 3 4 special setting tool is not required the bolt when inserted and turned clockwise expands the anchor via the
Box Bolts Expansion Bolt for Structural Steel Size 1 Hot Dip Galvanized The BoxBolt is an expansion anchor for steel that can be used to make connections to structural tube sections BoxBolt is suitable for use with rectangular square and circular sections or other types of steelwork where access is restricted to one side only
6 EXPANSION MECHANISM The Hollo Bolt is available in two versions the original 3 part design for general hollow section connections and the larger sized 5 part High Clamping Force HCF version for higher strength structural connections HOLLO BOLT amp HOLLO BOLT HCF A typical connection is made by inserting the Hollo Bolt into the pre drilled holes of the fixture