CN204571129U - A kind of stair - Google Patents
A kind of stair Download PDFInfo
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- CN204571129U CN204571129U CN201520033686.4U CN201520033686U CN204571129U CN 204571129 U CN204571129 U CN 204571129U CN 201520033686 U CN201520033686 U CN 201520033686U CN 204571129 U CN204571129 U CN 204571129U
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- 238000010586 diagram Methods 0.000 description 23
- 238000009408 flooring Methods 0.000 description 14
- 238000005553 drilling Methods 0.000 description 7
- 238000010079 rubber tapping Methods 0.000 description 7
- 238000010276 construction Methods 0.000 description 4
- 241000209094 Oryza Species 0.000 description 2
- 235000007164 Oryza sativa Nutrition 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 235000009566 rice Nutrition 0.000 description 2
- 238000010008 shearing Methods 0.000 description 2
- 238000000205 computational method Methods 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
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Abstract
The utility model provides a kind of stair, described stair comprise the first bench, the first tie-beam, the body of described first tie-beam is fixedly connected with described first bench, the first end of described first tie-beam is fixedly connected with floor/ground, and the second end of described first tie-beam is fixedly connected with connecting platform/floor; The first end of described first bench is fixedly connected with floor/ground, and the second end of described first bench is fixedly connected with connecting platform/floor.Stair provided by the utility model, its structure is simple, and stair step both sides, without the need to arranging structural wall, can ensure the globality of stair, the stressed of stair can be made again effectively to transmit, add stability and safety.
Description
Technical field
The utility model relates to house technical field, particularly relates to a kind of stair.
Background technology
At present, integrated house with its short construction period, safe and reliable, environmental pollution is little, the advantage such as handsome in appearance is widely used.So in order to ensure the security and stability of integrated house better, not only the frame requirements of its entirety has good soundness and stability, and each component also requirement to have good stability and connectivity.Such as, stair.Stair are as the friendship standard member between building interbed, and it is by closely linking together between layers in house.Particularly in the house of low layer, such as integrated house, it is the main vehicles.
In integrated house, being most widely used of the integrated house of steel work.In the integrated house of steel work, so how provide the annexation between the body of wall in the stair of stability and safety and stair and house, floor and floor, be the technical problem being badly in need of at present solving.
Utility model content
For the problems referred to above, the purpose of this utility model is to provide a kind of stair solving any one problem above.
The utility model provides a kind of stair.Described stair are steel structure stairway, described stair comprise the first bench, the first tie-beam, the body of described first tie-beam is fixedly connected with described first bench, the first end of described first tie-beam is fixedly connected with floor/ground, and the second end of described first tie-beam is fixedly connected with connecting platform/floor; The first end of described first bench is fixedly connected with floor/ground, and the second end of described first bench is fixedly connected with connecting platform/floor;
Wherein, described first bench comprises N number of marking time, wherein, N is positive integer, each marking time comprises the first support, the second support and the first pedal, the height of described first support is greater than the height of described second support, and first edge of a wing of described first support and first edge of a wing of described second support are positioned at same plane, and first edge of a wing on first edge of a wing and described second support that described first pedal connects described first support is formed marks time;
Described N number of mark time in each marking time to be fixedly connected with the body of described first tie-beam.
Wherein, described first support is the first C-type steel keel and described second support is the second C-type steel keel; The height of described first C-type steel keel is greater than described second C-type steel keel; First edge of a wing of described first C-type steel keel and first edge of a wing of described second C-type steel keel are positioned in same level, described first pedal is fixedly connected with first edge of a wing of described second C-type steel keel with first edge of a wing of described first C-type steel keel, and formation is marked time; The first end of described first C-type steel keel is fixedly connected with the body of described first tie-beam,
Wherein, the web of i-th the first C-type steel keel of marking time is fixedly connected with the web of the i-th-1 the second C-type steel keel of marking time, the web of described i-th the second C-type steel keel of marking time is fixedly connected with the i-th+1 the first C-type steel keel of marking time, wherein, 1 < i < N; 1st first C-type steel keel second edge of a wing of marking time is fixedly connected with floor/ground, and the web of the 1st the second C-type steel keel of marking time is fixedly connected with the web of the 2nd the first C-type steel keel of marking time; The web of N number of first C-type steel keel of marking time is fixedly connected with the web of N-1 the second C-type steel keel of marking time, and the web of described N number of second C-type steel keel of marking time is fixedly connected with connecting platform/floor.
Wherein, described first tie-beam is buckled together by C-type steel keel and a U-shaped steel joist and is formed, and wherein, the web of the C-type steel keel of described first tie-beam is fixedly connected with by the first connector with the first end of each first C-type steel keel of marking time; The first end of the web of the C-type steel keel of described first tie-beam is connected with floor/ground by the second connector; Second end of the web of the C-type steel keel of described first tie-beam is fixedly connected with connecting platform/floor by the 3rd connector.
Wherein, described first connector is " ┗ " type connector, and described first connector comprises the first plate for being fixedly connected with each first support of marking time and the second plate for being fixedly connected with the body of described first tie-beam; Described first plate is rectangular plate-like structure, on described first plate along its length on connecting through hole is set; Described second plate is rectangular plate-like structure, on described second plate along its length on connecting hole is set.
Wherein, described second connector is " ┗ " type connector, comprise the first plate of the first end for connecting described first tie-beam and the second plate for being fixedly connected with floor/ground, described first plate is rectangular plate-like structure, described first plate arranges two exhausting holes along its length, often arrange three, described second plate is rectangular plate-like structure, described second plate is arranged along its length two connecting holes.
Wherein, described 3rd connector comprises the first plate, the second plate, the 3rd plate, the 4th plate and the 5th plate, wherein, described first plate, described second plate are connected successively with described 3rd plate, described 4th plate and described 5th plate are divided into the both sides of described second plate, and with the setting at a right angle of described second plate; Described first plate and the setting at a right angle of the second plate, the angle between described second plate and described 3rd plate be the angle between described first tie-beam and connecting platform add 90 degree and.
Wherein, described stair also comprise the second tie-beam, described second tie-beam is buckled together by C-type steel keel and a U-shaped steel joist and is formed, wherein, the web of the C-type steel keel of described second tie-beam is fixedly connected with by described first connector with the second end of each first C-type steel keel of marking time; The first end of the web of the C-type steel keel of described second tie-beam is connected with floor/ground by described second connector; Second end of the web of the C-type steel keel of described second tie-beam is fixedly connected with connecting platform/floor by described 3rd connector.
Wherein, adjacent two mark time between height be difference in height between first edge of a wing of previous second C-type steel keel of marking time and first edge of a wing of rear first C-type steel keel of marking time.
Wherein, the angle between the first bench of described stair and floor/ground is 25 ~ 30 degree.
Wherein, the angle between the first bench of described stair and floor/ground is 29 degree.
Stair provided by the utility model, are made up of C-type steel keel, and are fixedly connected with body of wall, floor and floor by corresponding connector.Its structure is simple, and stair step both sides, without the need to arranging structural wall, can ensure the globality of stair, the stressed of stair can be made again effectively to transmit, add stability and safety.Meanwhile, when constructing at the scene, owing to adopting C type or U-shaped steel joist, easy construction, the cycle is short, and cost is also low.
Accompanying drawing explanation
To be incorporated in manual and the accompanying drawing forming a part for manual shows embodiment of the present utility model, and together with the description for explaining principle of the present utility model.In the drawings, similar Reference numeral is used for key element like representation class.Accompanying drawing in the following describes is embodiments more of the present utility model, instead of whole embodiment.For those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can be obtained according to these accompanying drawings.
Fig. 1 illustrates the structural representation of stair provided by the utility model;
Fig. 2 illustrates the structural representation of marking time of the first bench of stair provided by the utility model;
Fig. 3 illustrates the sectional view of the first connector of stair provided by the utility model;
Fig. 4 illustrates the schematic diagram of the first plate of the first connector of stair provided by the utility model;
The schematic diagram that the first end that Fig. 5 illustrates the web of the C-type steel keel of the first tie-beam of stair provided by the utility model is connected with ground/flooring;
Fig. 6 illustrates the sectional view of the second connector of stair provided by the utility model;
Fig. 7 illustrates the schematic diagram of the first plate of the second connector of stair provided by the utility model;
Fig. 8 illustrates the schematic diagram of the second plate of the second connector of stair provided by the utility model;
Fig. 9 illustrates the opening part first shrouding sectional view of the first end of the first tie-beam of stair provided by the utility model;
The first side plate schematic diagram of the first shrouding of the opening part of the first end of the first tie-beam of stair provided by the utility model is illustrated in Figure 10;
The schematic diagram that the second end that Figure 11 illustrates the first tie-beam of stair provided by the utility model is connected with connecting platform;
Figure 12 illustrates the structural representation of the 3rd connector of stair provided by the utility model;
Figure 13 illustrates the top view of the 3rd connector of stair provided by the utility model;
Figure 14 illustrates the left view of the 3rd connector of stair provided by the utility model;
Figure 15 a illustrates the schematic diagram of the connecting platform be connected with stair provided by the utility model;
Figure 15 b illustrates the connection diagram of the second step with stair provided by the utility model and connecting platform;
The second shrouding sectional view that the opening part that Figure 16 illustrates one end be fixedly connected with connecting platform of the 3rd tie-beam of stair provided by the utility model is arranged;
The schematic diagram of the first side plate of the second shrouding that the opening part that Figure 17 illustrates one end be fixedly connected with connecting platform of the 3rd tie-beam of stair provided by the utility model is arranged;
Figure 18 illustrates the sectional view of the 4th connector of stair provided by the utility model;
Figure 19 illustrates the schematic diagram in the first plate face of the 4th connector of stair provided by the utility model;
Figure 20 illustrates the schematic diagram in the second plate face of the 4th connector of stair provided by the utility model;
Figure 21 illustrates the sectional view of the 5th connector of stair provided by the utility model;
Figure 22 illustrates the top view of the 5th connector of stair provided by the utility model;
Figure 23 illustrates the left view of the 5th connector of stair provided by the utility model;
Detailed description of the invention
For making the object of the utility model embodiment, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.It should be noted that, when not conflicting, the embodiment in the application and the feature in embodiment can be combined mutually.
Basic thought of the present utility model is, provides a kind of stair, and stair comprise bench and tie-beam.Stair are formed by C-type steel keel and/or U lightgage steel joist.Namely the bench of stair, tie-beam and connecting platform are formed by C-type steel keel and/or U lightgage steel joist.Bench comprises marks time, and marks time and comprises two supports and pedal.Pedal connects two supports formation and marks time.Two supports are C-type steel keel.Two supports are fixedly connected with to the corresponding support in adjacent marking time respectively.The two ends of the bench of stair are fixedly connected with floor/ground with connecting platform respectively.Tie-beam is fixedly connected with each the marking time in the bench of stair, and two ends are fixedly connected with floor/ground with connecting platform.Stair provided by the utility model, structure is simple, and the design feature that make use of C-type steel keel and U lightgage steel joist defines bench and bench and floor, ground and the annexation linking platform.The globality of stair can be ensured, the stressed of stair can be made again effectively to transmit, add stability and safety.Stair provided by the utility model can be applied in any house being suitable for using, such as steel house and cold bending thin wall light steel structure house.
Be described in detail according to provided stair of the present utility model below in conjunction with accompanying drawing.
As shown in Figure 1, Fig. 1 illustrates the structural representation of stair provided by the utility model.Stair provided by the utility model can be arranged on not to be had in the house passage of middle walls, and stair 1 comprise the first bench 10 and the first tie-beam 20.As shown in Figure 1, stair 1 can also comprise connecting platform 30.Wherein, the first bench 10 is fixedly connected with the body 201 of the first tie-beam 20.The first end 202 of the first tie-beam 20 is fixedly connected with floor/ground 2.Second end 204 of the first tie-beam 20 is fixedly connected with the side 301 of connecting platform 30.The opposite side 302 of connecting platform 30 is fixedly connected with the body of wall in house.
First bench 10 comprises N number of marking time, and wherein, N is positive integer.In FIG, the first bench 10 comprises 10 and marks time.This does not become the restriction to the number of marking time that the first bench 10 can comprise.The number that the setting parameters such as the length on the ground that the story height that can cover according to bench, bench cover are marked time.
Each marking time includes the first support, the second support and a pedal.Pedal connects two supports and forms one and mark time.The height of the first support is greater than the height of the second support, and first edge of a wing of the first support and the edge of a wing of the second support are positioned in same level, and first edge of a wing of pedal and the first support and first edge of a wing of the second support are fixedly connected to form marks time.Two supports are C-type steel keel or U-shaped steel joist.
Below for two supports for C-type steel keel are described in detail.Each marking time includes the first C-type steel keel, the second C-type steel keel and the first pedal.Wherein, the height of the first C-type steel keel is greater than the height of the second C-type steel keel, and namely the height of the web of the first C-type steel keel is greater than the height of the web of the second C-type steel keel.In the application process of reality, first edge of a wing of the first C-type steel keel and first edge of a wing of the second C-type steel keel are positioned in same level, like this, the first pedal is fixedly connected with first edge of a wing of the second C-type steel keel with first edge of a wing of the first C-type steel keel respectively, forms one and marks time.Adjacent two mark time between the web of corresponding first C-type steel keel be fixedly connected with the web of the second C-type steel keel.That is, the web of previous second C-type steel keel of marking time is fixedly connected with the web of next first C-type steel keel of marking time.Adjacent two mark time between height can by adjust adjacent two mark time between the connection width of the web of corresponding first C-type steel keel and the web of the second C-type steel keel realize.Such as, if need adjacent two mark time between height higher, then can reduce adjacent two mark time between connection width between the web of corresponding first C-type steel keel and the web of the second C-type steel keel.As shown in Figure 2, in Fig. 2,1st 11 and the 2nd height of marking time between 12 of marking time, can by adjust the 1st mark time 11 the web 1112 of the second C-type steel keel 111 and the 2nd mark time 12 the connection width of web 1201 of the first C-type steel keel 120 realize.If need the height of marking time high, then the 1st mark time 11 the web 1112 of the second C-type steel keel 111 and the 2nd mark time 12 the connection width of web 1201 of the first C-type steel keel 120 smaller.If need the height of marking time not high, then the 1st mark time 11 the web 1112 of the second C-type steel keel 111 and the 2nd mark time 12 the connection width of web 1201 of the first C-type steel keel 120 can be wider.Like this, adjacent two height of marking time be the 1st mark time 11 first edge of a wing 1111 of the second C-type steel keel 111 and the 2nd mark time 12 the first C-type steel keel 120 first edge of a wing between difference in height.
Specifically, during the first bench 10 N number of marks time, what be fixedly connected with floor/ground 2 marks time, and can be called the 1st and mark time 11, also can be referred to as the first end of the first bench 10.Mark time for 1st and 11 comprise the first C-type steel keel 110, second C-type steel keel 111 and the first pedal 112.The height of the first C-type steel keel 110 is greater than the height of the second C-type steel keel 111, and namely the height of the web of the first C-type steel keel 110 is greater than the height of the web of the second C-type steel keel 111.Such as, the height of the web of the first C-type steel keel 110 can be 235 millimeters, and the height of the web 1112 of the second C-type steel keel can be 90 millimeters.In actual applications, first edge of a wing 1101 of the first C-type steel keel 110 and first edge of a wing 1111 of the second C-type steel keel 111 are in same level, like this, first pedal 112 is fixedly connected with first edge of a wing 1111 of the second C-type steel keel 111 with first edge of a wing 1101 of the first C-type steel keel 110 respectively, forms the 1st and marks time.1st mark time 11 the second C-type steel keel 111 web 1112 with the 2nd mark time 12 the web 1201 of the first C-type steel keel 120 be fixedly connected with.As shown in Figure 1, the 1st mark time 11 the web 1112 of the second C-type steel keel 111 and the 2nd mark time 12 the web 1201 of the first C-type steel keel 120 fit tightly and be fixed together, be namely fixedly connected with in back-to-back mode.Connected mode can adopt any applicable mode, and such as, self tapping self-drilling screw connects or adopts the mode of bolt to be fixedly connected with.1st mark time 11 second edge of a wing 1102 of the first C-type steel keel 110 be fixedly connected with floor/ground 2.
In order to can provide the 1st mark time and the 2nd mark time between suitable height, can adjust the 1st mark time 11 the second C-type steel keel 111 web 1112 with the 2nd mark time 12 the width be fixedly connected with of web 1201 of the first C-type steel keel 120, such as can make the 1st mark time 11 the second C-type steel keel 111 second edge of a wing 1113 with the 2nd mark time 12 second edge of a wing 1203 of the first C-type steel keel 120 stagger or align.
In like manner, mark time for i-th and also comprise the first C-type steel keel, the second C-type steel keel and the first pedal, wherein, 1 < i < N.The height of the first C-type steel keel is greater than the height of the second C-type steel keel, and namely the height of the web of the first C-type steel keel is greater than the height of the web of the second C-type steel keel.Such as, the height of the web of the first C-type steel keel can be 235 millimeters, and the height of the second C-type steel keel can be 90 millimeters.First edge of a wing of the first C-type steel keel and first edge of a wing of the second C-type steel keel are in same level, and like this, the first pedal is fixedly connected with first edge of a wing of the second C-type steel keel with first edge of a wing of the first C-type steel keel respectively, forms i-th and marks time.The web of i-th the first C-type steel keel of marking time fits tightly with the web of the i-th-1 the second C-type steel keel of marking time and is fixedly connected with.The web of i-th the second C-type steel keel of marking time fits tightly with the web of the i-th+1 the first C-type steel keel of marking time and is fixedly connected with.Connected mode can adopt any applicable mode, and such as, welding or the mode adopting screw bolt and nut to coordinate are fixedly connected with.
In order to can provide i-th mark time and the i-th+1 mark time between suitable height, the width that the web that can adjust the second C-type steel keel that i-th is marked time is fixedly connected with the web of the i-th+1 the first C-type steel keel of marking time, staggers with second edge of a wing of the i-th+1 the first C-type steel keel of marking time or aligns in second edge of a wing of the second C-type steel keel that i-th such as can be made to mark time.
What be fixedly connected with connecting platform 30 marks time, and can be called and N number ofly mark time 91, also can be referred to as the second end of the first bench 10.N number of marking time 91 comprises the first C-type steel keel 910, the second C-type steel keel 911 and the first pedal 912.The height of the first C-type steel keel 910 is greater than the height of the second C-type steel keel 911, and namely the height of the web of the first C-type steel keel 910 is greater than the height of the web of the second C-type steel keel 911.Such as, the height of the web of the first C-type steel keel 910 can be 235 millimeters, and the height of the second C-type steel keel 911 can be 90 millimeters.In actual applications, first edge of a wing 9101 of the first C-type steel keel 910 and first edge of a wing 9111 of the second C-type steel keel 911 are in same level, like this, first pedal 912 is fixedly connected with first edge of a wing 9111 of the second C-type steel keel 911 with first edge of a wing 9101 of the first C-type steel keel 910 respectively, forms the and N number ofly to mark time.The web 9102 of N the first C-type steel keel of marking time fits tightly with the web of N-1 the second C-type steel keel of marking time and is fixedly connected with.N number of mark time 91 the web 9112 of the second C-type steel keel 911 be fixedly connected with connecting platform 30.Connected mode can adopt any applicable mode, and such as, self tapping self-drilling screw connects or adopts the mode of screw bolt and nut cooperation to be fixedly connected with.
In order to can provide the N number of mark time and N-1 mark time between suitable height, the width that the N number of web 9102 of the first C-type steel keel 910 of marking time 91 is fixedly connected with the web of N-1 the second C-type steel keel of marking time can be adjusted, such as can make the N number of mark time 91 second edge of a wing 9103 of the first C-type steel keel 910 stagger with second edge of a wing of the individual second C-type steel keel of marking time of N-1 or align.
As Fig. 1 describes, between the first bench 10 and ground/flooring 2, there is certain angle α.The size of α can set according to actual needs, such as, can be set as 25 degree ~ 30 degree.Specifically, can set that to there is certain angle α between the first bench 10 and ground/flooring 2 be 29 degree.
As shown in Figure 1, the first tie-beam 20 is buckled together by C-type steel keel and a U-shaped steel joist and is formed.U-shaped steel joist fastens C-type steel keel and forms the first tie-beam 20.The web of C-type steel keel and U-shaped steel joist forms the body 201 of described first tie-beam.Connected mode can adopt any applicable mode, and such as, self tapping self-drilling screw connects or adopts the mode of screw bolt and nut cooperation to be fixedly connected with.The side of the first bench 10 and the wall connecting in house, opposite side is fixedly connected with the first tie-beam 20.Meanwhile, one end 202 of the first tie-beam 20 is fixedly connected with ground/flooring 2, and the other end 204 is fixedly connected with connecting platform 30.First tie-beam 20 can be marked time with each of the first bench 10 by the C-type steel keel of formation first tie-beam 20 or the web of U-shaped steel joist, connecting platform 30 is fixedly connected with ground/flooring 2.Below to form the web of the C-type steel keel of the first tie-beam 20 and each of the first bench 10 marks time, connecting platform 30 and ground/flooring 2 are fixedly connected as example and are described.
The web forming the C-type steel keel of the first tie-beam 20 is fixedly connected with each the marking time of the first bench 10.As shown in Figure 2, the 2nd mark time 12 and first connection diagram of web 2011 of C-type steel keel of tie-beam 20 is illustrated to Fig. 2 exemplary type in the first bench 10.Wherein, the 2nd mark time 12 the web 1201 of the first C-type steel keel 120 by the web 2011 of the C-type steel keel of the first connector 1202 and the first tie-beam 20.
Fig. 3 illustrates the sectional view of the first connector 1202.As shown in Figure 3, the first connector 1202 is " ┗ " type connector.First connector 1202 comprises the first plate 1202a and the second plate 1202b.First plate 1202a and the second plate 1202b setting at a right angle.
The schematic diagram of the first plate 1202a is illustrated in Fig. 4.Wherein, the first plate 1202a is rectangular plate-like structure, and its length is 100 millimeters, and wide is 35 millimeters, and thickness is 1.6 millimeters.Wherein, the first plate 1202a arranges three connecting through holes.Three connecting through holes arrange setting along the length direction one of the first plate 1202a.Three pitchs of holes are 30 millimeters.The aperture of three connecting through holes is 4 millimeters.First plate be used for the 2nd mark time 12 the web 1201 of the first C-type steel keel 120 be fixedly connected with.
Second plate 1202b (not shown) is identical with the structure of the first plate 1202a, and namely the second plate 1202b is rectangular plate-like structure, and its length is 100 millimeters, and wide is 35 millimeters, and thickness is 1.6 millimeters.Second plate 1202b is arranged three connecting through holes.Three connecting through holes arrange setting along the length direction one of the second plate 1202b.Three pitchs of holes are 30 millimeters.The aperture of three connecting through holes is 4 millimeters.Second plate 1202b is used for being fixedly connected with the web 2011 of the C-type steel keel of the first tie-beam 20.
The first limit L1 of the first plate 1202a and first limit of the second plate 1202b are fixed together, and make the first plate 1202a and the second plate 1202b setting at a right angle.First plate 1202a and the second plate 1202b can be integrally formed, and also can be formed in other any suitable modes.The distance T1 of three connecting through holes on the first plate 1202a and its first limit L1 is 20 millimeters.Three connecting through holes on second plate 1202b and the distance on its first limit are 20 millimeters.First limit L1 is the long limit of the first plate 1202a, and length is 100 millimeters.First limit is the long limit of the second plate 1202b, and length is 100 millimeters.The first limit L1 of the first plate 1202a is fixed together in the mode of aliging with first limit of the second plate 1202b.
The 2nd mark time 12 the first C-type steel keel 120 web 1201 on be provided with three connecting holes corresponding to three connecting through holes on the first plate 1202a.The web 2011 of the C-type steel keel of the first tie-beam 20 is provided with for the connecting hole with three connecting through holes on the second plate 1202b.By the first connector, the 2nd the mark time web 1201 of the first C-type steel keel 120 of 12 and the web 2011 of the C-type steel keel of the first tie-beam 20 are fixed together, thus make the 2nd to mark time to be fixedly connected with the first tie-beam 20.
In the foregoing description, in two plates on the first connector 1202, be provided with three connecting through holes respectively, to connect the 2nd mark time 12 and first tie-beam 20.This is exemplary description, does not become the restriction of the first connector 1202 in the utility model.In actual application, number and the set-up mode of connecting through hole can be selected as required.Two plates on first connector 1202 can be integrally formed, and also can be fixedly connected with in any suitable manner.
In like manner, in the first bench 10, each marking time all can adopt aforesaid way to be fixedly connected with the first tie-beam 20.
The first end forming the web of the U-shaped steel joist of the first tie-beam 20 is fixedly connected with ground/flooring 2.As shown in Figure 5, the schematic diagram that the first end that Fig. 5 illustrates the web of the U-shaped steel joist of formation first tie-beam 20 is connected with ground/flooring 2.Wherein, the first end forming the web of the U-shaped steel joist of the first tie-beam 20 is fixedly connected with ground/flooring 2 by the second connector 2021.
Fig. 6 illustrates the sectional view of the second connector 2021, and as shown in Figure 6, the second connector 2021 is " ┗ " type connector.Second connector 2021 comprises the first plate 2021a and the second plate 2021b.First plate 2021a and the second plate 2021b setting at a right angle.
The schematic diagram of the first plate 2021a of the second connector 2021 is illustrated in Fig. 7.Wherein, the first plate 2021a is rectangular plate-like structure, and length is 118 millimeters, and wide is 100 millimeters, and thickness is 1.6 millimeters.The schematic diagram of the second plate 2021b of the second connector 2021 is illustrated in Fig. 8.Wherein, the second plate 2021b is rectangular plate-like structure, and length is 100 millimeters, and wide is 61.6 millimeters, and thickness is 1.6 millimeters.Wherein, the first limit b1 of the first limit a1 of the first plate 2021a of the second connector 2021 and the second plate 2021b of the second connector 2021 is fixed together, and the first plate 2021a of the second connector 2021 is connected with the second plate 2021b of the second connector 2021 is at a right angle.First limit a1 is the broadside of the first plate 2021a, and length is 100 millimeters.First limit b1 is the long limit of the second plate 2021b, and length is 100 millimeters.The first limit a1 of the first plate 2021a is fixed together in the mode of aliging with the first limit b1 of the second plate 2021b.
As shown in Figure 7, the first plate 2021a of the second connector 2021 arranges six connecting through holes.Six connecting through holes arrange setting along the length direction two of the first plate 2021a, often arrange three through holes.Often arrange three through holes to be in line setting, and three pitch of holes c1 are 25 millimeters.Distance c2 often between row is 50 millimeters.Wherein, the distance c3 of two through holes distance first limit a1 of close first limit a1 is 48 millimeters.The aperture of six connecting through holes is 4 millimeters.
When connecting the first tie-beam 20 and ground/floor 2 to make the second connector 2021, do not mark time with the 1st 11 second edge of a wing 1102 of the first C-type steel keel 110 produce and conflict, first plate 2021a of the second connector 2021 is used for being fixedly connected with the first end of the web of the U-shaped steel joist of formation first tie-beam 20, and the first tie-beam 20 is fixedly connected with ground/floor 2.
As shown in Figure 8, Fig. 8 illustrates the schematic diagram of the second plate 2021b of the second connector 2021.Second plate 2021b is arranged two connecting through holes.Two connecting through holes are arranged along the length direction of the second plate 2021b.Two pitchs of holes are 40 millimeters.The aperture of two connecting through holes is 12.5 millimeters.Second plate 2021b is used for being fixedly connected with ground/floor 2.
First plate 2021a can by with the coordinating of screw bolt and nut, be fixedly connected with the first end of the web of the U-shaped steel joist of formation first tie-beam 20.Second plate 2021b is fixedly connected with ground/floor 2 by such as expansion bolt.The diameter of expansion bolt can elect 12 millimeters as.Like this, by the second connector 2021, first tie-beam 20 is fixed together with ground/floor 2.
In the foregoing description, the number of the connecting hole arranged in two plates on the second connector 2021, just exemplary description, does not become the restriction of the second connector 2021 in the utility model.In actual application, number and the set-up mode of connecting through hole can be selected as required.
In addition, because the first tie-beam 20 is buckled together by C-type steel keel and a U-shaped steel joist to be formed, in order to close the opening at the first tie-beam 20 two ends, the utility model provides the first shrouding 203.For the opening of the first end 202 of closed first tie-beam 20, the opening that the first end namely forming the first end of the web of the C-type steel keel of the first tie-beam and the web of U-shaped steel joist is formed is that example is described.As shown in Figure 5, the first tie-beam 20 first end 202 opening part is provided with the first shrouding 203.
The sectional view of the first shrouding 203 is illustrated in Fig. 9.As shown in Figure 9, the first shrouding 203 is U-shaped structures, comprises base plate 2030, first side plate 2031 and the second side plate 2032.Wherein, the length of base plate is 138 millimeters, and width is 57.2 millimeters, and thickness is 1.6 millimeters.The first side plate 2031 schematic diagram is illustrated in Figure 10.Be rectangular plate-like structure at the first side plate 2031, length is 138 millimeters, and wide is 35 millimeters, and thickness is 1.6 millimeters.First side plate 2031 is provided with four connecting holes, and four connecting holes arrange setting along the length direction one of the first side plate 2031, and the pitch of holes of four connecting holes is 30 millimeters.Aperture is 4 millimeters.The structure of the second side plate 2032 is the same with the structure of the first side plate 2031, and be rectangular plate-like structure, length is 138 millimeters, and wide is 35 millimeters, and thickness is 1.6 millimeters.Second side plate 2032 is provided with four connecting holes, and four connecting holes arrange setting along the length direction one of the second side plate 2032, and the pitch of holes of four connecting holes is 30 millimeters.Aperture is 4 millimeters.
In actual application, the opening that the first end that first side plate 2031 of the first shrouding 203 and the second side plate 2032 insert the first end of the web of the C-type steel keel of the first tie-beam 20 and the web of U-shaped steel joist is formed, and be fixedly connected with the first end of the first end of the web of the C-type steel keel of the first tie-beam 20 or the web of U-shaped steel joist.Specifically, first side plate 2031 of the first shrouding 203 can be fixedly connected with the first end of the web of the C-type steel keel of the first tie-beam 20, and so the second side plate 2032 of the first shrouding 203 is fixedly connected with the first end of the web of the U-shaped steel joist of the first tie-beam 20.Certainly, the first side plate 2031 of shrouding 203 also can be fixedly connected with the first end of the web of the U-shaped steel joist of the first tie-beam 20, and so the second side plate 2032 of the first shrouding 203 is fixedly connected with the first end of the web of the C-type steel keel of the first tie-beam 20.
Second end 204 of the first tie-beam 20 is fixedly connected with connecting platform 30.As shown in figure 11, the schematic diagram that the second end 204 that Figure 11 illustrates the first tie-beam 20 is connected with connecting platform 30.Wherein, the first tie-beam 20 second end 204 is fixedly connected with connecting platform 30 by the 3rd connector 205.
Figure 12 illustrates the structural representation of the 3rd connector 205.Wherein the 3rd connector 205 comprises the first plate 2051, second plate 2052, the 3rd parts 2053, the 4th parts 2054 and the 5th parts (not shown).First plate 2051, second plate 2052 is connected successively with the 3rd parts 2053, and the 4th parts 2054 and the 5th parts 2055 are divided into the second plate 2052 both sides, and with the setting at a right angle of the second plate 2052.
First plate 2051 is for being fixedly connected with the landing 3011 of connecting platform 30.Second plate 2052 is for being fixedly connected with landing beam 3012.3rd parts 2053 are fixedly connected with first edge of a wing of C-type steel keel for first edge of a wing of the U-shaped steel joist with formation first tie-beam 20.4th parts 2054 are fixedly connected with for the web of the U-shaped steel joist with formation first tie-beam 20.5th parts 2055 are fixedly connected with for the web of the C-type steel keel with formation first tie-beam 20.First plate 2051 and the setting at a right angle of the second plate 2052.Angle between second plate 2052 and the 3rd parts 2053 is relevant with the angle on floor/ground 2 with the first tie-beam 20.Such as, if the first tie-beam 20 is 29 degree with the angle on floor/ground 2, the angle so between the second plate 2052 and the 3rd parts 2053 is (29+90)=119 degree.4th parts 2054 and the 5th parts 2055 are divided into the both sides of the second plate 2052, and setting at a right angle.
Figure 13 illustrates the top view of the 3rd connector 205.As shown in Figure 13, the first plate 2051 is rectangular plate-like structure, and length is 58.6 millimeters, and wide is 40 millimeters, and thickness is 1.6 millimeters.First component 2051 is provided with four through holes, point two rows are arranged, and often arrange two.The spacing of upper two through holes arranged is 30 millimeters along its length, and the spacing of upper two through holes arranged is 20 millimeters in the width direction.
Figure 14 illustrates the left view of the 3rd connector 205.As shown in Figure 14, the second plate 2052 is rectangular plate-like structure, and length is 270 millimeters, and wide is 58.6 millimeters, and thickness is 1.6 millimeters.Second plate 2052 is provided with 16 connecting holes, two rows are arranged along its length, often arrange 8, and the spacing in often arranging between every two connecting holes is 30 millimeters, and the spacing between two rows is 20 millimeters.
Known shown in composition graphs 11-14, the 3rd parts 2053 are rectangular plate-like structure, and length is 210 millimeters, and wide is 54 millimeters, and thickness is 1.6 millimeters.3rd parts 2053 are provided with 12 through holes, two rows are arranged along its length, often arrange 6, and the distance in often arranging between every two through holes is 30 millimeters, and the spacing between two rows is 20 millimeters.
As shown in Figure 12, the 4th parts 2054 are rectangular plate-like structure, and length is 240 millimeters, and width is 45 millimeters, and thickness is 1.6 millimeters.First limit d1 of the 4th parts 2054 is fixedly connected with the first limit d2 of the second plate 2052, and setting at a right angle.4th parts 2054 are provided with 7 connecting holes, and along the length direction setting in a row of the 4th parts 2054, and the spacing between every two connecting holes is 30 millimeters.5th parts are identical with the 4th modular construction, and be rectangular plate-like structure, length is 240 millimeters, and width is 45 millimeters, and thickness is 1.6 millimeters.First limit of the 5th parts is fixedly connected with the Second Edge of the second plate 2052, and setting at a right angle.5th parts are provided with 7 connecting holes, and along the length direction setting in a row of the 5th parts, and the spacing between every two connecting holes is 30 millimeters.
As described above, be fixed together with connecting platform 30 by the 3rd connector 205, first tie-beam 20.Specifically, the first plate 2051 of the 3rd connector 205, by self tapping self-drilling screw, is fixedly connected with the landing 3011 of connecting platform 30.Second plate 2052 of the 3rd connector 205, by the cooperation of self tapping self-drilling screw, is fixedly connected with landing beam 3012.Meanwhile, the 3rd parts 2053 of the 3rd connector 205 are fixedly connected with first edge of a wing of C-type steel keel with first edge of a wing of U-shaped steel joist forming the first tie-beam 20.3rd parts 2053, while playing fixation, play the effect of lifting to the first tie-beam 20 again, add the stability of the connection between the first tie-beam 20 and connecting platform 30.4th parts 2054 are fixedly connected with the both sides of the first tie-beam 20 with the 5th parts simultaneously, further increase again the stability of the connection between the first tie-beam 20 and connecting platform 30.
As described above, stair 1 provided by the utility model also comprise connecting platform 30.As shown in Figure 15 a, Figure 15 a illustrates the schematic diagram of connecting platform 30.Connecting platform 30 comprises landing 3011, landing beam 3012, crossbeam 3013 and at least one column 3014.One end of at least one column 3014 is fixedly connected with floor/ground 2, and the other end is fixedly connected with crossbeam 3013.The number of column can according to the needs of the stability of connecting platform and other relevant needs, the number of setting column, such as 2.Crossbeam 3013 is fixedly connected with landing beam 3012.Landing beam 3012 is fixedly connected with landing 3011.
Wherein, the first tie-beam 20 is also fixedly connected with landing beam 3012 by the second plate 2052 of the 3rd connector 205, thus the first tie-beam 20 is fixedly connected with the landing beam 3012 of connecting platform.
As shown in Figure 1, the angle α between the first bench 10 and floor/ground 2.The size of α can set according to actual needs, such as, can be set as 25 degree ~ 30 degree.Specifically, can set that to there is certain angle α between the first bench 10 and ground/flooring be 29 degree.So this is not as the restriction of the angle α in the utility model between the first bench 10 and floor/ground 2, and it can set the size of angle α as required.
If stair provided by the utility model are arranged in the house passage without any body of wall, stair so provided by the utility model can also comprise the second tie-beam.The structure of the second tie-beam and identical with the first tie-beam 20 with annexation between the first bench 10, ground/flooring 2, connecting platform 30, is not just described in detail here.
Stair 1 provided by the utility model also comprise the second step 40.See Fig. 1 and Figure 15 b, one end of the second step 40 is fixedly connected with connecting platform 30, and the other end is fixedly connected with floor 3.The second step 40 comprises M and marks time, and wherein, M is positive integer.Each structure of marking time and annexation identical with the structure of the first bench 10.Here be not just described in detail.The 1st of the second step 40 mark time 41 the web of the first C-type steel keel 410 be fixedly connected with connecting platform 30, specifically, the 1st of the second step 40 mark time 41 the first C-type steel keel 410 web be fixedly connected with connecting platform 30.The web of M the second C-type steel keel of marking time of the second step 40 is fixedly connected with floor 3.
Do not have in the house passage of middle walls if stair provided by the utility model are arranged on, stair so provided by the utility model can also comprise the 3rd tie-beam 50.The structure of the 3rd tie-beam 50 and the annexation with the second step, with the structure of the first tie-beam and identical with the annexation of the first bench, be not just described in detail here.
One end of 3rd tie-beam 50 is fixedly connected with connecting platform 30, and the other end is fixedly connected with floor 3.As described above, the 3rd tie-beam 50 is identical with the structure of the first tie-beam 20, and namely the 3rd tie-beam 50 is buckled together by C-type steel keel and a U-shaped steel joist to be formed, and there is opening at two ends.When 3rd tie-beam 50 is fixedly connected with connecting platform 30, in order to close the opening of the 3rd this one end of tie-beam 50, the utility model provides the second shrouding 501, for closed 3rd tie-beam 50 opening.
As illustrated in fig. 15b, at the 3rd tie-beam 50, second shrouding 501 is set with one end be fixedly connected with of connecting platform 30.Illustrate the sectional view of the second shrouding 501 in Figure 16, as shown in Figure 16, the second shrouding 501 is U-shaped structures, comprises base plate 5011, first side plate 5012 and the second side plate 5013.Wherein, the length of base plate is 115 millimeters, and width is 57.2 millimeters, and thickness is 1.6 millimeters.The first side plate 5012 schematic diagram is illustrated in Figure 17.Be rectangular plate-like structure at the first side plate 5012, length is 115 millimeters, and wide is 35 millimeters, and thickness is 1.6 millimeters.First side plate 5012 is provided with three connecting holes, and three connecting holes arrange setting along the length direction one of the first side plate 5012, and the pitch of holes of three connecting holes is 30 millimeters.Aperture is 4 millimeters.The structure of the second side plate 5013 is the same with the structure of the first side plate 5012, and be rectangular plate-like structure, length is 115 millimeters, and wide is 35 millimeters, and thickness is 1.6 millimeters.Second side plate 5013 is provided with three connecting holes, and three connecting holes arrange setting along the length direction one of the second side plate 5013, and the pitch of holes of three connecting holes is 30 millimeters.Aperture is 4 millimeters.
In actual application, the first side plate 5012 of the second shrouding 501 and the second side plate 5013 insert the opening of the 3rd tie-beam 50, and are fixedly connected with the web of the C-type steel keel of the 3rd tie-beam 50 or the web of U-shaped steel joist.Specifically, the first side plate 5012 of the second shrouding 501 can be fixedly connected with the web of the C-type steel keel of the 3rd tie-beam 50, and so the second side plate 5012 of the second shrouding 501 is fixedly connected with the web of the U-shaped steel joist of the 3rd tie-beam 50.Certainly, the first side plate 5012 of the second shrouding 501 also can be fixedly connected with the web of the U-shaped steel joist of the 3rd tie-beam 50, and so the second side plate 5013 of the second shrouding 501 is fixedly connected with the web of the C-type steel keel of the first tie-beam 50.
As described above, one end of the 3rd tie-beam 50 is fixedly connected with connecting platform 30, and the other end is fixedly connected with floor 3.3rd tie-beam 50 is fixedly connected with connecting platform 30 by the 4th connector 502.3rd tie-beam 50 is fixedly connected with floor 3 by the 3rd connector 205.
Figure 18 illustrates the sectional view of the 4th connector 502.As shown in Figure 18, the 4th connector 502 is " ┗ " type connector, comprises the first panel 5021 and the second panel 5022.Figure 19 illustrates the schematic diagram of the first panel, and wherein, the first panel 5021 is rectangular plate-like structure, and length is 116.6 millimeters, and wide is 40 millimeters, and thick is 1.6 millimeters.First panel 5021 is provided with four through holes, and four through holes arrange setting along the length direction one of the first panel 5021, and its spacing is 20 millimeters, and the diameter of through hole is 4 millimeters.First panel 5021 is for being fixedly connected with the 3rd tie-beam 50.
Figure 20 illustrates the schematic diagram of the second panel 5022 of the 4th connector 502.Wherein, the second panel 5022 is rectangular plate-like structure, and length is 61.6 millimeters, and wide is 40 millimeters, and thick is 1.6 millimeters.Second panel 5022 is provided with a through hole, and the diameter of through hole is 12.5 millimeters.Second panel 5022 is for being fixedly connected with the landing 3011 of connecting platform 30.
The other end of the 3rd tie-beam 50 is fixedly connected with floor 3 by the 3rd connector 205.Specifically, first plate 2051 is for being fixedly connected with the flooring 31 of floor 3, second plate 2052 is for being fixedly connected with the side 32 of floor 3, and the 3rd parts 2053 are for being fixedly connected with first edge of a wing of C-type steel keel with first edge of a wing of U-shaped steel joist of formation the 3rd tie-beam 50.4th parts 2054 are fixedly connected with for the web of the U-shaped steel joist with formation the 3rd tie-beam 50.5th parts 2055 are fixedly connected with for the web of the C-type steel keel with formation the 3rd tie-beam 50.3rd parts 2053, while playing fixation, play the effect of lifting to the 3rd tie-beam 50 again, add the stability of the connection between the 3rd tie-beam 50 and floor 3.4th parts 2054 are fixedly connected with the both sides of the 3rd tie-beam 50 with the 5th parts 2055 simultaneously, further increase again the stability of the connection between the 3rd tie-beam 50 and floor 3.
If floor 3 is provided with independent lintel 35, as shown in Figure 1, the other end of the 3rd tie-beam 50 is fixedly connected with floor 3 by the 5th connector 503.
Figure 21 illustrates the structural representation of the 5th connector 503.Wherein, the 5th connector 503 comprises the first plate 5031, second plate 5032, the 3rd plate 5033 and the 4th plate 5034.Wherein, the first plate 5031 is fixedly connected with and setting at a right angle with the second plate 5032.3rd plate 5033 and the 4th plate 5034 are divided into the second plate 5032 both sides, and with the setting at a right angle of the second plate 5032.
First plate 5031 is for being fixedly connected with flooring 31.Second plate 5032 is for being fixedly connected with independent lintel 35.3rd plate 5033 is fixedly connected with for the web of the U-shaped steel joist with formation the 3rd tie-beam 50.4th plate is used for being fixedly connected with the web of the C-type steel keel of formation the 3rd tie-beam 50.
Figure 22 illustrates the top view of the 5th connector 503.As shown in Figure 22, the first plate 5031 is rectangular plate-like structure, and length is 58.6 millimeters, and wide is 40 millimeters, and thickness is 1.6 millimeters.First plate 5031 is provided with four through holes, point two rows are arranged, and often arrange two.The spacing of upper two through holes arranged is 30 millimeters along its length, and the spacing of upper two through holes arranged is 20 millimeters in the width direction.
Figure 23 illustrates the left view of the 5th connector 503.As shown in Figure 23, the second plate 5032 is rectangular plate-like structure, and length is 475 millimeters, and wide is 58.6 millimeters, and thickness is 1.6 millimeters.Second plate 5032 being provided with 28 connecting holes divides two parts to arrange, and near arranging Part I with the first plate 5031 place, Part I totally 14, divides two rows to arrange.Often arrange 7 connecting holes.Wherein, in often arranging, the spacing of adjacent two connecting holes is 30 millimeters.And be 25 millimeters near two connecting holes of first end of the second plate 5032 be connected with the first plate 5031 and the distance of the first end 5032a of the second plate 5032.Close, Part II is set with the second end 5032b place of the second plate 5032.Part II totally 14, point two rows are arranged, and often arrange 7 connecting holes.Wherein, in often arranging, the spacing of adjacent two connecting holes is 30 millimeters.And near being 30 millimeters with the distance of two connecting holes of the second end 5032b of the second plate 5032 and the second end 5032 of the second plate 5032.All in all, arrange 28 connecting holes in the second plate 5032, two rows are arranged along its length, often arrange 14.
As shown in Figure 21, the 3rd plate 5033 is rectangular plate-like structure, and length is 210 millimeters, and width is 45 millimeters, and thickness is 1.6 millimeters.First limit f1 of the 3rd plate is fixedly connected with the first limit f2 of the second plate 5032, and setting at a right angle.3rd plate 5033 is provided with 6 connecting holes, and along the length direction setting in a row of the 3rd plate 5033, and the spacing between every two connecting holes is 30 millimeters.4th plate 5034 is identical with the 3rd plate structure, and be rectangular plate-like structure, length is 240 millimeters, and width is 45 millimeters, and thickness is 1.6 millimeters.4th plate 5034 is fixedly connected with the second plate 5032, and setting at a right angle.4th plate 5034 is provided with 6 connecting holes, and along the length direction setting in a row of the 4th plate 5034, and the spacing between every two connecting holes is 30 millimeters.
As described above, be fixed together with floor 3 by the 5th connector the 503, three tie-beam 50.Specifically, the first plate 5031 of the 5th connector 503, by self tapping self-drilling screw, is fixedly connected with flooring 31.Second plate 5032 is by self tapping self-drilling screw, and independent lintel 35 is fixedly connected with.Meanwhile, the 3rd plate 5033 is fixedly connected with the both sides of the 3rd tie-beam 50 with the 4th plate 5034 simultaneously, is stably connected with between floor 3 to make the 3rd tie-beam 50.
Stair provided by the utility model can be applied to any be suitable for install house in, such as steel house and cold bending thin wall light steel structure house.
The utility model provide forms stair by C type or U-shaped steel joist, its easy construction, simple, and the cycle is short.Meanwhile, utilize the feature of C type or U-shaped steel joist, and be fixedly connected with body of wall, floor and floor by corresponding connector, bench both sides are without the need to arranging structural wall, the globality of stair can be ensured, the stressed of stair can be made again effectively to transmit, add stability and safety.
Support, pedal and tie-beam that the C type of stair provided by the utility model or U-shaped steel joist are formed all meet the force request in steel house related specifications.Below for pedal force, be described in detail.
As follows about a kind of typical application size of the concrete size of marking time: the length l of pedal is 988 millimeters, and width d is 265 millimeters.For the support that C-type steel keel are formed, its size is described, the height h of its median ventral plate is 235 millimeters, and the width b on the edge of a wing is 50 millimeters, and the width of crimping a is 20 millimeters, and the thickness t of C-type steel keel is 1.6 millimeters.In the characteristic of the steel of C-type steel keel, yield strength fy is 205 Ns of every square millimeter of (N/mm
2), shear strength fv is 120N/mm
2.
The setting permanent load Pd that the middle pedal as beam of marking time need bear that marks time is 1.43 thousand Ns of every square metre of (KN/m
2), load assignment span d is 265mm, and corresponding linear load q1=Pd*d is 0.38 thousand N every meter (KN/m).The disposal load Pl that pedal need bear is 2.5 thousand Ns of every square metre of (KN/m
2), load assignment span d is 265mm, and corresponding linear load q2=P1*d is 0.66 thousand N every meter (KN/m).Calculate the value q=1.2*q1+1.4*q2=1.38KN/m of Load Combination, the moment of flexure of unit of marking time
it is 170 Ns ● rice (Nm), the shearing of unit of marking time
v is 682N.
To marking time, beam carries out supporting capacity checking computations:
Calculate the intensity of beam of marking time
ox every square millimeter (N/mm
2), income value is much smaller than the 205N/mm2 in steel house related specifications.Wherein, M represents the moment of flexure of beam of marking time, W
enxrepresent the useful cross section modulus of x-axis.
Calculate the shear stress of beam of marking time
income value is much smaller than the 120N/mm2 in steel house related specifications.Wherein, V represents the shearing of beam of marking time, and S represents that the above gross cross-sectional in shear stress place is to the area moment of natural axis; I represents the gross cross-sectional moment of inertia of beam of marking time; T represents the thickness of C-type steel keel.
To marking time, unit carries out Stability Checking:
Calculate integral stability factor φ
bvalue be 19.4617, when this value is greater than 0.7, according to
φ ' is obtained after modifying
bvalue be 1.07692>1.0, by φ '
bvalue be taken as 1.Calculate
income value is much smaller than the 205N/mm in steel house related specifications
2.
To marking time, beam carries out deformation analysis:
δ=5ql
4/ 384EI=0.01 millimeter, is less than the l/250 rice i.e. requirement of 4 millimeters in steel house related specifications.Wherein, q represents the value of Load Combination, and l is the length of mainboard of marking time, and E represents the steel modulus of elasticity of marking time, and I represents the gross cross-sectional moment of inertia of marking time.
According to above-mentioned checking computations, this staircase structure is stablized and safety.The computational methods of each parameter are used all to come from the relevant design specification in the steel house such as Technical code for design of coldformed thin wall steel structures, Code for design of steel structures field in above-mentioned checking computations.
Concrete dimensional values involved in the utility model is exemplary description, is not formed restriction of the present utility model, can carry out corresponding concrete setting in actual applications according to stressed needs to the numerical value of each size.
Above-described content can combine enforcement individually or in every way, and these variant are all within protection domain of the present utility model.
It should be noted that, in this article, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the article of a series of key element or equipment not only comprises those key elements, but also comprise other key elements clearly do not listed, or also comprise by this article or the intrinsic key element of equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within the article or equipment comprising described key element and also there is other identical element.
Above embodiment only in order to the technical solution of the utility model and unrestricted to be described, has only been described in detail the utility model with reference to preferred embodiment.Those of ordinary skill in the art should be appreciated that and can modify to the technical solution of the utility model or equivalent replacement, and does not depart from the spirit and scope of technical solutions of the utility model, all should be encompassed in the middle of right of the present utility model.
Claims (10)
1. stair, it is characterized in that, described stair are steel structure stairway, described stair comprise the first bench, the first tie-beam, the body of described first tie-beam is fixedly connected with described first bench, the first end of described first tie-beam is fixedly connected with floor/ground, and the second end of described first tie-beam is fixedly connected with connecting platform/floor; The first end of described first bench is fixedly connected with floor/ground, and the second end of described first bench is fixedly connected with connecting platform/floor;
Wherein, described first bench comprises N number of marking time, wherein, N is positive integer, each marking time comprises the first support, the second support and the first pedal, the height of described first support is greater than the height of described second support, and first edge of a wing of described first support and first edge of a wing of described second support are positioned at same plane, and first edge of a wing on first edge of a wing and described second support that described first pedal connects described first support is formed marks time;
Described N number of mark time in each marking time to be fixedly connected with the body of described first tie-beam.
2. stair as claimed in claim 1, it is characterized in that, described first support is the first C-type steel keel and described second support is the second C-type steel keel; The height of described first C-type steel keel is greater than described second C-type steel keel; First edge of a wing of described first C-type steel keel and first edge of a wing of described second C-type steel keel are positioned in same level, described first pedal is fixedly connected with first edge of a wing of described second C-type steel keel with first edge of a wing of described first C-type steel keel, and formation is marked time; The first end of described first C-type steel keel is fixedly connected with the body of described first tie-beam,
Wherein, the web of i-th the first C-type steel keel of marking time is fixedly connected with the web of the i-th-1 the second C-type steel keel of marking time, the web of described i-th the second C-type steel keel of marking time is fixedly connected with the i-th+1 the first C-type steel keel of marking time, wherein, 1 < i < N; 1st first C-type steel keel second edge of a wing of marking time is fixedly connected with floor/ground, and the web of the 1st the second C-type steel keel of marking time is fixedly connected with the web of the 2nd the first C-type steel keel of marking time; The web of N number of first C-type steel keel of marking time is fixedly connected with the web of N-1 the second C-type steel keel of marking time, and the web of described N number of second C-type steel keel of marking time is fixedly connected with connecting platform/floor.
3. stair as claimed in claim 2, it is characterized in that, described first tie-beam is buckled together by C-type steel keel and a U-shaped steel joist and is formed, wherein, the web of the C-type steel keel of described first tie-beam is fixedly connected with by the first connector with the first end of each first C-type steel keel of marking time; The first end of the web of the C-type steel keel of described first tie-beam is connected with floor/ground by the second connector; Second end of the web of the C-type steel keel of described first tie-beam is fixedly connected with connecting platform/floor by the 3rd connector.
4. stair as claimed in claim 3, it is characterized in that, described first connector is " ┗ " type connector, and described first connector comprises the first plate for being fixedly connected with each first support of marking time and the second plate for being fixedly connected with the body of described first tie-beam; Described first plate is rectangular plate-like structure, on described first plate along its length on connecting through hole is set; Described second plate is rectangular plate-like structure, on described second plate along its length on connecting hole is set.
5. stair as claimed in claim 3, it is characterized in that, described second connector is " ┗ " type connector, comprise the first plate of the first end for connecting described first tie-beam and the second plate for being fixedly connected with floor/ground, described first plate is rectangular plate-like structure, and described first plate arranges two exhausting holes along its length, often arranges three, described second plate is rectangular plate-like structure, described second plate is arranged along its length two connecting holes.
6. stair as claimed in claim 3, it is characterized in that, described 3rd connector comprises the first plate, the second plate, the 3rd plate, the 4th plate and the 5th plate, wherein, described first plate, described second plate are connected successively with described 3rd plate, described 4th plate and described 5th plate are divided into the both sides of described second plate, and with the setting at a right angle of described second plate; Described first plate and the setting at a right angle of the second plate, the angle between described second plate and described 3rd plate be the angle between described first tie-beam and connecting platform add 90 degree and.
7. stair as claimed in claim 3, it is characterized in that, described stair also comprise the second tie-beam, described second tie-beam is buckled together by C-type steel keel and a U-shaped steel joist and is formed, wherein, the web of the C-type steel keel of described second tie-beam is fixedly connected with by described first connector with the second end of each first C-type steel keel of marking time; The first end of the web of the C-type steel keel of described second tie-beam is connected with floor/ground by described second connector; Second end of the web of the C-type steel keel of described second tie-beam is fixedly connected with connecting platform/floor by described 3rd connector.
8. stair as claimed in claim 2, is characterized in that, adjacent two mark time between height be difference in height between first edge of a wing of previous second C-type steel keel of marking time and first edge of a wing of rear first C-type steel keel of marking time.
9. stair as claimed in claim 1, it is characterized in that, the angle between the first bench of described stair and floor/ground is 25 ~ 30 degree.
10. stair as claimed in claim 9, it is characterized in that, the angle between the first bench of described stair and floor/ground is 29 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520033686.4U CN204571129U (en) | 2015-01-16 | 2015-01-16 | A kind of stair |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520033686.4U CN204571129U (en) | 2015-01-16 | 2015-01-16 | A kind of stair |
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| Publication Number | Publication Date |
|---|---|
| CN204571129U true CN204571129U (en) | 2015-08-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520033686.4U Expired - Fee Related CN204571129U (en) | 2015-01-16 | 2015-01-16 | A kind of stair |
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| Country | Link |
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| CN (1) | CN204571129U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963467A (en) * | 2015-01-16 | 2015-10-07 | 北新集团建材股份有限公司 | Stairway |
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2015
- 2015-01-16 CN CN201520033686.4U patent/CN204571129U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104963467A (en) * | 2015-01-16 | 2015-10-07 | 北新集团建材股份有限公司 | Stairway |
| CN104963467B (en) * | 2015-01-16 | 2017-11-24 | 北新集团建材股份有限公司 | A kind of stair |
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