A kind of accommodation rail safety detection instrument
Technical field
The invention belongs to detecting instrument technical field, with Accurate Determining municipal administration bridge and civilian can be built more particularly to one kind
Build the detector of accommodation rail safety.
Background technique
Accommodation rail is a kind of important engineering protection class Accessory Members, is widely used in platform upper and stair side
Face ensures crowd's life security to prevent falling accident.Modern age individual building accommodation rail material is aggregate structure,
Modern architecture accommodation rail material is mostly cast iron or stainless steel, is individually wooden or plastic-aluminum.It is generallyd use between railing and handrail
Form is welded or is bolted to be attached.Accommodation rail bottom end generally using buried or bolt be anchored in platform or step it
It is interior, to play protective action.
But in practical projects, many factors may all influence the bearing capacity of accommodation rail.Firstly, no matter railing is helped
Hand getting is which kind of material, all there are endurance issues, accommodation rail is under moist or multigelation environmental condition, and railing root is all
It is possible that phenomena such as corroding, rotting.Secondly as railing belongs to Accessory Members, construction quality is usually ignored, railing bottom
Connecting portion is likely to Construction defect occur between portion and structural elements connecting portion and railing and handrail.In addition, railing
Handrail design selection is improper, insufficient rigidity, it is also possible to cause the deformation of accommodation rail top excessive.Above-mentioned factor all may cause
The forfeiture of its accommodation rail bearing capacity and safety assurance ability.
The degeneration or forfeiture of accommodation rail bearing capacity may directly result in the generation of falling accident, especially for the stream of people
The facilities such as the place of education such as biggish school, kindergarten or megastore and overline bridge are measured, such accident will lead to more
Serious consequence.Such as afternoon on July 10th, 2014, since balcony guardrail aging is broken, the 3 years old youngster in the Changsha International Residential Kai Tong one
Child's pendant is died.On July 18th, 2014, Wuhan steel continent garden district, when a Ms is faced upward by balcony iron railing, the railing fallen that becomes rusty is unexpected
It collapses, dies.When the June in 2018 of self-study at night break on the 20th, the new building Chinese ash school Zhong Jiao of foreign language and row in Zhengzhou
At three buildings vestibules of political affairs office building, because railing is broken suddenly, three boy students is caused to fall down from the building (Fig. 1).
Currently, country mainly has " civil buildings design general rule " for the building trade standard regulation of accommodation rail
GB50352-2005, " Code for design of dwelling houses " GB50096-1999, " middle and primary schools' design specification " GB50099-2011, " child
Garden, nursery code of building design " JGJ39-2016 etc..All to accommodation rail height-width size, height in these standard criterions
Degree and detail operating have carried out detailed requirement.In " loading code for design of building structures " GB50009-2012, also to railing load
Clear stipulaties have been carried out in the form of compulsive clause.
However, the parameter that accommodation rail bearing capacity is so important, can not also be obtained so far by engineering detecting means
Know, have no effectively calibrating accommodation rail bearing capacity method exist, also and there are no can accurately examine and determine accommodation rail carrying energy
The instrument and equipment of power.
Summary of the invention
For the above technical problems, in order to accurately examine and determine accommodation rail bearing capacity, and then judge railing
Handrail goes along with sb. to guard him performance.The present invention provides a kind of accommodation rail safety detection instrument, which can be with Accurate Determining accommodation rail
Bearing capacity and protective capacities, and principle is simple, cost of manufacture is cheap, portable easy to operate.
The purpose of the present invention is achieved through the following technical solutions:
A kind of accommodation rail safety detection instrument of the present invention, including detection host, pedestal, force application apparatus, the detection master
Machine is connected on pedestal, is detected host by force application apparatus and is connected accommodation rail to be measured;The force application apparatus includes push rod, connects
Extension bar and force application mechanism, the force application mechanism both ends are separately connected one end of push rod and connecting rod, the other end connection of connecting rod
Host is detected, the other end of push rod is contacted with railing to be measured, applies push rod to pull rod to be measured by force application mechanism force elongation
Thrust measures the endurance of railing to be measured.
Preferably, the push rod, connecting rod and force application mechanism connect in line, and the angle α between horizontal line is 45-
60°。
Preferably, the push rod end also has force pushing hands.
Preferably, the force pushing hands is the structure matched with the handrail of railing to be measured with railing contact jaw to be measured.
Preferably, the force pushing hands and railing contact jaw to be measured are arcuate structure.
Preferably, the force pushing hands includes multiple arc fork structures connected side by side.
Preferably, the force application mechanism is jack.
Preferably, the force application mechanism is hydraulic cylinder.
Preferably, the detection host includes angle measurement equipment, force snesor, computing module and display screen, the angle
Measuring appliance is that laser angle measuring appliance positioned at the host one end for connecting the connecting rod measures the force application angle of push rod;The power
Sensor is located at the end of push rod installation force pushing hands, and host measures the angle of per moment push rod simultaneously and the power of push rod end passes
The reaction force that sensor is passed back, is sent to computing module, and it is horizontal and vertical to complete per moment according to the calculation formula of computing module
The calculating of the power in direction;Detection host shows push rod force application angle, level and vertical reaction force numerical value by display screen simultaneously.
When detecting at the scene, pedestal and detection host are first set on stairway step;Then, using cutting equipment cut to
Railing is surveyed, the railing section to be measured after making cutting is by 1 they sup-port on stairway step;It is applied what is connected on the push rod that exerts a force
Hand is pushed to be placed on the handrail of railing section to be measured;The force application mechanism switch of connection push rod is opened, force application mechanism elongation pushes away
Bar movement is shown horizontal and two vertical under railing section destruction to be measured or extreme displacement state respectively by detection host display
Direction thrust component intended FxAnd Fy。
The invention has the benefit that
1. the present invention pushes push rod to make accommodation rail stress to be measured by force application apparatus, by measuring destruction or extreme displacement
Horizontal and vertical both direction thrust F under statexAnd Fy, judge the safety of accommodation rail, structure is simple, and controllability is strong, measures
Result precision it is high.
2. force application mechanism of the invention can use jack or hydraulic cylinder, easy to operate, easy to accomplish, power transmission effect
It is good.
3. present invention can ensure that can be convenient when being detected at the scene, be simple and direct and effectively to Building rail handrail
Bearing capacity is measured.The utility model principle is simple, cheap and convenient and practical.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention.
Fig. 2 is the structural block diagram that host is detected in Fig. 1.
In figure: 1. pedestals, 2. detection hosts, 3. connecting rods, 4. force application mechanisms, 5. push rods, 6. force pushing hands, 7. railings,
8. support rod, 9. steps, 10. bolts.
Specific embodiment
The present invention will be described in detail with reference to the accompanying drawings and examples.
Embodiment: as shown in Figure 1, a kind of accommodation rail safety detection instrument, including detection host 2, pedestal 1, force dress
It sets, the detection host 2 is connected on pedestal 1, is detected host 2 by force application apparatus and is connected accommodation rail to be measured;It is described to apply
Power device includes push rod 5, connecting rod 3 and force application mechanism 4, and 4 both ends of force application mechanism are separately connected push rod 5 and connecting rod 3
One end, the other end connecting detection host 2 of connecting rod 3, the other end of push rod 5 are contacted with railing 7 to be measured, pass through force application mechanism 6
Force elongation makes push rod 5 apply thrust to pull rod 7 to be measured, measures the endurance of railing 7 to be measured.
In line, the angle α between horizontal line is 45-60 ° for the push rod 5, connecting rod 3 and the connection of force application mechanism 4.
5 end of push rod also has force pushing hands 6.
The force pushing hands 6 is the structure matched with the handrail of railing 7 to be measured with 7 contact jaw of railing to be measured, specially
Arcuate structure.Force pushing hands 6 described in this example includes multiple arc fork structures connected side by side.
The force application mechanism 4 is jack.Hydraulic cylinder or machine driving elongated structure can also be used, such as lead screw silk
Parent structure.
As shown in Fig. 2, the detection host that the present invention uses includes angle measurement equipment, force snesor, computing module and display
Screen, the angle measurement equipment are laser angle measuring appliance, and positioned at the host one end for connecting the connecting rod 3, measurement push rod 5 is applied
Power angle;The force snesor is located at the end of the installation force pushing hands 6 of push rod 5, and host measures the angle of per moment push rod 5 simultaneously
And the reaction force that the force snesor of 5 end of push rod is passed back, it is sent to computing module, is completed according to the calculation formula of computing module
The calculating of per moment level and the power of vertical direction.Detection host by display screen simultaneously show push rod force application angle, level and
Vertical reaction force numerical value.The calculation formula of the power of the level and vertical direction of the computing module are as follows:
Fx=∫ F (t) cos α d α
Fy=∫ F (t) sin α d α
Including angle measurement equipment, force snesor and display screen described in wherein is existing structure.
When the present invention detects at the scene, pedestal 1 and detection host are first set on the corresponding stairway step 9 with survey railing 7
2,10 firm banking 1 of expansion bolt can be passed through;Then, railing 7 to be measured is cut using cutting equipment, the column to be measured after making cutting
Rod segment is supported on stairway step by 1 support rod 9;The force pushing hands 6 connected on push rod 5 is placed in railing section to be measured
On handrail;The force application mechanism 4 for opening connection push rod 5 switchs, and the elongation of force application mechanism 4 pushes push rod 5 to move, by detecting host 2
Display screen shows horizontal and vertical both direction thrust component intended F under railing section destruction to be measured or extreme displacement state respectivelyxAnd Fy。
The calculating publicity of two thrust component intendeds is as follows:
Fx=∫ F (t) cos α d α
Fy=∫ F (t) sin α d α
The safety of accommodation rail is judged according to the thrust measured.
It is provided according to 5.2.2 money in " loading code for design of building structures " GB50009-2012, house, dormitory, office building, trip
Shop, hospital, nursery, kindergarten, banister top horizontal loading are not less than 1.0kN/m;School, dining room, arenas, cinema, vehicle
It stands, auditorium, exhibition center or stadium, banister top horizontal loading is not less than 1.0kN/m, and vertical load is not less than 1.2kN/m.
When the banister through survey calculation is horizontal or vertical bearing capacity is unsatisfactory for code requirement limit value, it is believed that the stair
There are security risk, Ying Jinhang consolidation process for railing.