novadidacta.com.brnovadidacta.com.br/datasheets/str15.pdf · Curved Bars and Davits For students to...

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Page 1 of 2PE/db 0417

S T R 1 4

C u r v e d B a r s a n d D av i t sFor students to investigate two common curved structures and two common

davit structures

s t r u c t u r e s

• High-quality structures teaching module for students of mechanical, civil and structural engineering

• Allows safe and practical experiments into curved bars and davits

• Realistic and verifi able experiment results

• Optional TecQuipment’s Structures Software package for extra, ‘virtual’ experiments, that simulate and confi rm

the results from your hardware and allow extended experiments

• Optional STR2000 unit with TecQuipment’s Structures Software package for automatic data acquisition and

virtual experiments

• One of many interchangeable experiment modules from TecQuipment’s modern, fl exible and cost-eff ective

structures teaching system

• Ideal for classroom demonstrations, or students working in pairs or small groups

S c r e e n s h o t o f t h e o p t i o n a l S t r u c t u r e s S o f t wa r e



S T R 1 4

C u r v e d B a r s a n d D av i t s

D e s c r i p t i o nThe experiment hardware fi ts onto a Structures Test Frame

(STR1, available separately). Included are four diff erent

structures. Students attach one of the structures in front

of the hardware module, directly onto the test frame.

They then apply loads to the structure using masses on

hangers.

Two digital defl ection indicators, set at 90 degrees to

each other on the backboard, contact the structure and

so measure horizontal and vertical defl ection. The digital

defl ection indicators are on a magnetic base so students

can move them to anywhere on the backboard.

As students load a structure they note the horizontal

and vertical defl ections, thus investigating the structure

behaviour. They then compare this behaviour with

theoretical predictions.

The lecturer guide provides details of the equipment

including sample experiment results. The student guide

describes how to use the equipment and gives experiment

procedures.

For extra ‘virtual’ experiments, TecQuipment can supply

the optional TecQuipment Structures Software (STRS),

for use on a suitable computer. The virtual experiments

simulate the tests you can perform with the hardware.

They also extend the choice of tests beyond that available

using only the hardware, for example: higher loads,

uniform loads or diff erent test specimens. This extends the

student’s learning experience.

For automatic data acquisition of your experiment results,

TecQuipment can supply the optional Automatic Data

Acquisition Unit (STR2000). Supplied as standard with

the STR2000 is TecQuipment’s Structures Software that

displays and logs your experiment results and gives the

extra virtual experiments.

S ta n d a r d F e at u r e s• Supplied with Lecturer Guide and Student Guide

• Five-year warranty

• Made in accordance with the latest European Union

directives

L e a r n i n g O u t c o m e sInvestigation of the relationship between load, horizontal

defl ection and vertical defl ection for:

• a curved davit

• an angled davit

• a semicircle structure

• a quarter-circle structure

E s s e n t i a l B a s e U n i t• Structures Test Frame (STR1)

R e c o m m e n d e d A n c i l l a r y• Automatic Data Acquisition Unit (STR2000) for

automatic data acquisition and virtual experiments

O p e r at i n g C o n d i t i o n sO p e r at i n g e n v i r o n m e n t:Laboratory

S t o r a g e t e m p e r at u r e r a n g e :–25°C to +55°C (when packed for transport)

O p e r at i n g t e m p e r at u r e r a n g e :+5°C to +40°C

O p e r at i n g r e l at i v e h u m i d i t y r a n g e :80% at temperatures < 31°C decreasing linearly to 50% at

40°C

S p e c i f i c at i o n sN e t t d i m e n s i o n s a n d w e i g h t:540 x 200 x 70 mm and 3.5 kg

Pa c k e d d i m e n s i o n s a n d w e i g h t:Approximately 0.12 m3 and 5.5 kg

T e s t s t r u c t u r e s : Curved davit, angled davit, semicircle, quarter-circle

T e s t s t r u c t u r e s m at e r i a l :Aluminium alloy

L o a d a p p l i c at i o n : Five weight hangers and 150 x 10 g masses

A c c e s s o r i e s : Vernier

• TecQuipment Ltd, Bonsall Street, Long Eaton, Nottingham NG10 2AN, UK

• T +44 115 972 2611 • F +44 115 973 1520 • E [email protected] • W www.tecquipment.com

• An ISO 9001 certified company

STR15 Plastic Bending of Beams

Page 1 of 2

STRUCTURES

Introduces students to plastictheory and limit state design


• Allows safe and practical experiments into plastic bending of beams

• Realistic and verifiable experiment results

• Optional TecQuipment’s Structures Software package for extra, ‘virtual’ experiments, that simulateand confirm the results from your hardware and allow extended experiments

• Optional STR2000 unit with TecQuipment’s Structures Software package for automatic dataacquisition and virtual experiments

• One of many interchangeable experiment modules from TecQuipment’s modern, flexible and cost-effective structures teaching system


PE/db/0213

Screenshot of the optionalTecQuipment Structures Software




STR15 Plastic Bending of Beams

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STRUCTURES

DescriptionThe experiment hardware fits onto a Structures Test Frame(STR1, available separately). Students fix a specimen beamin chucks at both ends of a backboard. The chucks caneither clamp the beam (encastré fixing), or hold it on aknife-edge. The students then load the beam using a screwmechanism and electronic load cell.

The load cell connects to a Digital Force Display (STR1a,available separately) which displays the load as the beamdeforms. A long-travel digital deflection indicator on thebackboard measures specimen deformation. Tocompensate for the specimen shortening as it deforms,one of the chucks moves along the backboard, relative tothe deformation.

Students continue to apply a load until the specimen beamis in the fully plastic condition, that is, the beam hasundergone plastic collapse. They then compare the beambehaviour with theoretical predictions based on traditionalyield stress theory.

The lecturer guide provides details of the equipmentincluding sample experiment results. The student guidedescribes how to use the equipment and gives experimentprocedures.

For extra ‘virtual’ experiments, TecQuipment can supplythe optional TecQuipment Structures Software (STRS), foruse on a suitable computer. The virtual experimentssimulate the tests you can perform with the hardware.They also extend the choice of tests beyond that availableusing only the hardware, for example: higher loads,uniform loads or different test specimens. This extends thestudent’s learning experience.

For automatic data acquisition of your experiment results,TecQuipment can supply the optional Automatic DataAcquisition Unit (STR2000). Supplied as standard with theSTR2000 is TecQuipment’s Structures Software thatdisplays and logs your experiment results and gives theextra virtual experiments.

Standard Features• Supplied with Lecturer Guide and Student Guide

• Two-year warranty

• Made in accordance with the latest European Uniondirectives

Experiments• Relationship between load and deflection for beams

loaded to the plastic condition

• Introduction to form factor

• Introduction to limit state design

• Relationship between maximum loading and plastichinge formation for a simply supported beam, apropped cantilever and a fixed beam

Essential Base Unit• Structures Test Frame (STR1)

Essential Ancillary• Digital Force Display (STR1a)

Recommended Ancillaries• Specimen Beams Pack (STR15A)

• Automatic Data Acquisition Unit (STR2000) forautomatic data acquisition and virtual experiments

Operating Conditions

Operating environment:Laboratory environment

Storage temperature range:–25ºC to +55ºC (when packed for transport)

Operating temperature range:+5ºC to +40ºC

Operating relative humidity range:80% at temperatures < 31ºC decreasing linearly to 50% at40ºC

Specifications

Nett dimensions and weight:880 mm x 190 mm x 70 mm and 9.5 kg

Packed dimensions and weight:Approximately 0.12 m3 and 11.5 kg

Specimen beams: Three (8 mm x 8 mm x 860 mm)

Specimen beam material: Fully annealed mild steel

Load application: 500 N electronic ring load cell

Accessories: Vernier, rule, lead to connect to a Digital Force Display



S T R 1 6

P l a s t i c B e n d i n g o f P o r ta l sFor studying plastic theory and limit state design in portal frames

s t r u c t u r e s


• Allows safe and practical experiments into plastic bending of portals

• Realistic and verifi able experiment results

• Optional TecQuipment’s Structures Software package for extra, ‘virtual’ experiments, that simulate and confi rm

the results from your hardware and allow extended experiments

• Optional STR2000 unit with TecQuipment’s Structures Software package for automatic data acquisition and

virtual experiments

• One of many interchangeable experiment modules from TecQuipment’s modern, fl exible and cost-eff ective

structures teaching system


S c r e e n s h o t o f t h e o p t i o n a l S t r u c t u r e s S o f t wa r e



S T R 1 6

P l a s t i c B e n d i n g o f P o r ta l s

D e s c r i p t i o nThe experiment hardware fi ts onto a Structures Test Frame

(STR1, available separately). Students fi x a specimen

portal frame (two uprights with a cross-beam at the top)

to the bottom cross-piece of a test frame. The test frame

also holds horizontal and vertical screw mechanisms with

electronic load cells for loading the portal frame.

Students set the portal frame load conditions by arranging

the load cell screw mechanisms to provide either single

or combined loads. They then load the portal frame

manually by adjusting the screw mechanisms. The

electronic load cells connect to a Digital Force Display

(STR1a, available separately) that shows the horizontal

and vertical loads as the portal frame deforms. Two

long-travel digital defl ection indicators measure the portal

frame deformation.

Students continue to load the portal frame until it is in

the fully plastic condition, that is, it has undergone plastic

collapse. They monitor the collapse load, deformations,

and note where plastic hinges formed during collapse.

Packs containing 12 extra specimen portal frames are

available separately (STR16a).

Ideally, students should use the Plastic Bending of Beams

experiment (STR15) before progressing to Plastic Bending

of Portals. The Plastic Bending of Beams experiment

provides a basic understanding of underlying principles,

such as plastic deformation and form factor.

The lecturer guide provides details of the equipment

including sample experiment results. The student guide

describes how to use the equipment and gives experiment

procedures.

For extra ‘virtual’ experiments, TecQuipment can supply

the optional TecQuipment Structures Software (STRS),

for use on a suitable computer. The virtual experiments

simulate the tests you can perform with the hardware.

They also extend the choice of tests beyond that available

using only the hardware, for example: higher loads,

uniform loads or diff erent test specimens. This extends the

student’s learning experience.

For automatic data acquisition of your experiment results,

TecQuipment can supply the optional Automatic Data

Acquisition Unit (STR2000). Supplied as standard with

the STR2000 is TecQuipment’s Structures Software that

displays and logs your experiment results and gives the

extra virtual experiments.

S ta n d a r d F e at u r e s• Supplied with Lecturer Guide and Student Guide

• Five-year warranty

• Made in accordance with the latest European Union

directives

L e a r n i n g O u t c o m e s• Relationship between load and defl ection for portal

frames loaded to the plastic condition

• Introduction to limit state design

• Relationship between maximum loading and plastic

hinge formation in portal frames loaded vertically from

the centre, horizontally from one corner, and equally

from both positions

• Interaction between horizontal and vertical loading in

terms of plastic hinge position and mode of collapse

E s s e n t i a l B a s e U n i t• Structures Test Frame (STR1)

E s s e n t i a l A n c i l l a r y• Digital Force Display (STR1a)

R e c o m m e n d e d A n c i l l a r i e s• Specimen Portal Frame Pack (STR16a)

• Automatic Data Acquisition Unit (STR2000) for


O p e r at i n g C o n d i t i o n sO p e r at i n g e n v i r o n m e n t:Laboratory

S t o r a g e t e m p e r at u r e r a n g e :–25°C to +55°C (when packed for transport)

O p e r at i n g t e m p e r at u r e r a n g e :+5°C to +40°C

O p e r at i n g r e l at i v e h u m i d i t y r a n g e :80% at temperatures < 31°C decreasing linearly to 50% at

40°C

S p e c i f i c at i o n sN e t t d i m e n s i o n s a n d w e i g h t:880 x 450 x 70 mm and 6 kg

Pa c k e d d i m e n s i o n s a n d w e i g h t:Approximately 0.12 m3 and 8 kg

S p e c i m e n p o r ta l s : Three (nominally 200 mm x 300 mm, cross-section

12.5 mm x 3 mm)

S p e c i m e n b e a m m at e r i a l : Fully annealed mild steel

L o a d a p p l i c at i o n : Two 500 N electronic load cells

A c c e s s o r i e s : Vernier, rule, two leads to connect to a Digital Force

Display




STR17 Redundant Truss

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STRUCTURES

For studying determinate andindeterminate structures


• Allows safe and practical experiments into determinate and indeterminate structures






PE/db/0213

A screenshot of the optionalTecQuipment Structures Software




STR17 Redundant Truss

Page 2 of 2

STRUCTURES

DescriptionThe experiment hardware fits onto a Structures Test Frame(STR1, available separately). Two supports hold the topand base of one side of a structure. The top support allowspivoting, the base support allows pivoting and rolling.Initially, one of the members is missing from the structure,making it determinate. To make the structureindeterminate, students refit the missing member.

Students manually apply a load to one end of thedeterminate framework using a screw-thread andelectronic load cell. The load cell connects to a DigitalForce Display (STR1a, available separately) which showsthe applied load.

Each member of the structure has strain gauges attached.These each connect to a digital strain bridge which showsthe member strains. Students use the strains to help themcalculate the forces in the structure. A digital deflectionindicator measures displacement in the structure.

Students note applied load, strains and deflection in adeterminate framework. They then repeat the experimentwith the frame made indeterminate, and analyse andcompare their results.




Standard Features• Supplied with lecturer guide and student guide



ExperimentsStudy of strains, stresses, forces and deflections in:

• a statically determinate structure

• a statically indeterminate structure



Recommended Ancillaries• Automatic Data Acquisition Unit (STR2000) for







SpecificationsNett dimensions and weight:680 x 450 x 100 mm and 6.5 kg

Packed dimensions and weight:Approximately 0.12 m3 and 8.5 kg

Load application: 500 N electronic Load Cell

Strain measurement: 16-way Digital Strain Bridge

Deflection measurement: Digital Deflection Indicator

Accessories: Cable to connect to a Digital Force Display




STR18 Frame Deflections and Reactions

Page 1 of 2

STRUCTURES

For studying rectangular portalssubjected to vertical loads


• Allows safe and practical experiments into frame deflections and reactions






PE/db/0213

A screenshot of the optionalTecQuipment Structures Software




STR18 Frame Deflections and Reactions

Page 2 of 2

STRUCTURES

DescriptionThe experiment hardware fits onto a Structures Test Frame(STR1, available separately). The hardware includes tworectangular portal frames with the same dimensions.However, one of the frames has a constant secondmoment of area, while the other has one leg with asmaller second moment of area.

Students clamp each leg of one of the portal frames tosupports attached to the test frame. They then load thetop of the portal frame using masses on a hanger. Loadcells on the supports connect to a Digital Force Display(STR1a, available separately). These measure the momentat one end of the portal frame and the horizontal reactionat the other. A digital deflection indicator measures sway atthe top of the portal frame.

Students use the results of moments and reactions to plotbending moment diagrams. They compare the bendingmoment diagrams, the direction of sway (and its causes)to theoretical calculations. They then repeat theexperiment using the other portal frame.




Standard Features• Supplied with lecturer guide and student guide



ExperimentsStudy and comparison of load, horizontal reactions, fixingmoments, sway and shear forces in a:

• rectangular portal with a uniform section; and

• rectangular portal with a non-uniform section



Recommended Ancillary• Automatic Data Acquisition Unit (STR2000) for







Specifications

Nett dimensions and weight:700 x 610 x 60 mm and 4 kg

Packed dimensions and weight:Approximately 0.12 m3 and 6 kg

Portal frames: Two, of aluminium alloy, nominally 250 mm x 500 mm,one with a uniform section, one with a non-uniformsection

Load application: Five weight hangers and 150 x 10 g masses

Accessories: • Cable to connect to a Digital Force Display

• Vernier

• Rule

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