阅读说明：本技术 采用轻质高强度钢材的演示屏固定结构及搭建方法 (Demonstration screen fixing structure adopting light high-strength steel and construction method ) 是由 周予启 任耀辉 谢飞飞 范昕 向绪君 车庭枢 曹雨奇 刘军 于 2021-09-27 设计创作，主要内容包括：本发明涉及轻质高强度钢铁材料技术领域,具体为一种采用轻质高强度钢材的演示屏固定结构,固定结构的架体包括二道屏架；所述二道屏架的底部设置有通道钢结构,且通道钢结构采用组合式结构体系构成,所述通道钢结构内侧设有供车辆通行的通道,所述通道处采用单层钢结构框架结构,架体上搭设盘扣架体的跨越障碍组合式演示屏结构；所述二道屏架分别由若干单元体连接而成,本发明通过架体中部结构底部预留大通道,方便道具车辆和演出人员从后台通过底部通道进入舞台,架体在底部预留大通道,方便车辆和人员通行；南北两侧屏幕结构要适应紧凑的场地,设计成不规则结构形式,适应复杂场地形状和地基承载力要求。(The invention relates to the technical field of light high-strength steel materials, in particular to a demonstration screen fixing structure adopting light high-strength steel, wherein a frame body of the fixing structure comprises two screen frames; the bottom of the two screen frames is provided with a channel steel structure, the channel steel structure is formed by adopting a combined structure system, the inner side of the channel steel structure is provided with a channel for vehicles to pass through, the channel adopts a single-layer steel structure frame structure, and a crossing obstacle combined type demonstration screen structure of a disc buckle frame body is erected on the frame body; the two screen frames are respectively formed by connecting a plurality of unit bodies, a large channel is reserved at the bottom of the middle structure of the frame body, so that prop vehicles and performance personnel can conveniently enter a stage from a background through the bottom channel, and the large channel is reserved at the bottom of the frame body, so that the vehicles and the personnel can conveniently pass through the large channel; the screen structures on the north and south sides are designed to be suitable for compact sites and are designed into irregular structural forms, so that the requirements of complex site shapes and foundation bearing capacity are met.)

1. The utility model provides an adopt demonstration screen fixed knot of light high strength steel to construct which characterized in that: the frame body of the fixed structure comprises two screen frames;

the bottom of the two screen frames is provided with a channel steel structure, the channel steel structure is formed by adopting a combined structure system, the inner side of the channel steel structure is provided with a channel for vehicles to pass through, the channel adopts a single-layer steel structure frame structure, and a crossing obstacle combined type demonstration screen structure of a disc buckle frame body is erected on the frame body;

the two screen frames are respectively formed by connecting a plurality of unit bodies, and the frame bodies of the unit bodies are erected by adopting socket type disc buckle type steel pipe frames.

2. A demonstration screen fixing structure using a light weight high strength steel material according to claim 1, characterized in that: an operation carriageway is arranged on the second screen frame body, and a body-protecting railing is arranged on the side wall of the operation carriageway.

3. A demonstration screen fixing structure using a light weight high strength steel material according to claim 1, characterized in that: the screen is fixedly arranged on the side surface of the frame body.

4. A demonstration screen fixing structure using a light weight high strength steel material according to claim 1, characterized in that: further comprises a platform which is arranged on the top of the frame body.

5. A demonstration screen fixing structure using a light weight high strength steel material according to claim 1, characterized in that: and a steel base plate is arranged at the bottom of the second screen frame.

6. A demonstration screen fixing structure using a light weight high strength steel material according to claim 1, characterized in that: the fixing structure is provided with a square-shaped regional floor bearing plate, a fertilizer groove is arranged below one side of the square-shaped regional floor bearing plate, a bottom plate is arranged at the top of the square-shaped regional floor bearing plate, and a bidirectional steel beam is arranged on the upper side of the bottom plate.

7. A demonstration screen fixing structure using a light weight high strength steel material according to claim 1, characterized in that: and a steel base plate is arranged at the bottom of the second screen frame.

8. A demonstration screen fixing structure using a light weight high strength steel material according to claim 1, characterized in that: the one end of fixed support body is equipped with the large screen, be equipped with back the regional floor loading board of shape in the fixed knot structure, it is equipped with fertile groove to return regional floor loading board one side below of shape, the top of returning the regional floor loading board of shape is equipped with the bottom plate, the upside of bottom plate is equipped with two-way girder steel.

9. A construction method of a demonstration screen fixing structure adopting light high-strength steel is characterized in that: the method specifically comprises the following steps of,

s1: the cambered surface of the main screen frame is formed by connecting module frame bodies, lateral inclined rods are fully distributed, 2 channels are arranged on each module of the forward inclined rods, steel pipes are adopted for drawing, a mannequin channel is arranged in the middle of the main screen frame body, a structural measure that vertical cross braces are additionally arranged on the side faces of the middle part of the main screen frame body is adopted, three steps and two spans are arranged on each cross brace, and each span is additionally arranged;

s2: the cambered surfaces of the two screen frames are formed by connecting module frame bodies, a channel steel structure is formed at the bottom of the module frame by adopting a combined structure system, namely a single-layer steel structure frame system is adopted at a cross channel at the bottom, a disc buckling frame system is adopted at the upper part and a non-channel part of the module frame system, the lateral inclined rods are fully distributed, 4 modules are arranged on each forward inclined rod, steel pipes are adopted for drawing and knotting, 4.5m horizontal cross braces are adopted, and a pedestrian crossing is arranged on the frame body;

s3: the stand frame body sets up the operation packway, adopts the steel pipe to carry out the drawknot between every module support body, and the frame body is indulged transverse spacing 0.9m under the chairman platform, and step 1.5m, the pole setting top sets up the U and holds in the palm, and the joist adopts 1 channel-section steel, lays along long limit, and adjacent channel-section steel junction reaches and holds in the palm the contact surface spot welding with the U to at the bottom of the below square steel pipe that lays along the channel-section steel of channel-section steel, draw the channel-section steel into a whole.

Technical Field

The invention relates to the technical field of light high-strength steel materials, in particular to a demonstration screen fixing structure adopting light high-strength steel and a construction method thereof.

Background

When a great event is held in a limited place, a channel with the width of not less than 6m needs to be reserved at the bottom of the frame body for vehicle passing, a fertilizer groove, a sand pit, a municipal pipe well cover and the like are spanned at the bottom, and a hole with the width cannot be reserved in the frame body by adopting the plate buckle, so that the requirement is met by a structure.

Disclosure of Invention

The invention aims to provide a demonstration screen fixing structure adopting light high-strength steel, wherein a frame body of the fixing structure comprises two screen frames;

the bottom of the two screen frames is provided with a channel steel structure, the channel steel structure is formed by adopting a combined structure system, the inner side of the channel steel structure is provided with a channel for vehicles to pass through, the channel adopts a single-layer steel structure frame structure, and a crossing obstacle combined type demonstration screen structure of a disc buckle frame body is erected on the frame body;

the second screen frame is formed by connecting a first unit body, a second unit body, a third unit body, a fourth unit body, a fifth unit body, a sixth unit body and a seventh unit body respectively, and frame bodies of the unit bodies are erected by adopting socket type disc buckle type steel pipe frames.

Optionally, an operation walkway is arranged on the second screen frame body, and a body-protecting railing is arranged on the side wall of the operation walkway.

Optionally, the rack further comprises a screen, and the screen is fixedly arranged on the side surface of the rack body.

Optionally, the rack further comprises a platform, and the platform is arranged at the top of the rack body.

Optionally, a steel base plate is arranged at the bottom of the second screen frame.

Optionally, be equipped with back the regional floor loading board of shape in the fixed knot structure, it is equipped with fertile groove to return regional floor loading board one side below of shape, the top of returning the regional floor loading board of shape is equipped with the bottom plate, the upside of bottom plate is equipped with two-way girder steel.

Optionally, a steel base plate is arranged at the bottom of the second screen frame.

Optionally, one end of the fixing frame body is provided with a large screen, a square-shaped region floor slab bearing plate is arranged in the fixing structure, a fertilizer groove is arranged below one side of the square-shaped region floor slab bearing plate, a bottom plate is arranged at the top of the square-shaped region floor slab bearing plate, and a bidirectional steel beam is arranged on the upper side of the bottom plate.

A method for constructing a fixed structure of a demonstration screen made of light high-strength steel comprises the following steps,

s1: the cambered surface of the main screen frame is formed by connecting module frame bodies, lateral inclined rods are fully distributed, 2 channels are arranged on each module of the forward inclined rods, steel pipes are adopted for drawing, a mannequin channel is arranged in the middle of the main screen frame body, a structural measure that vertical cross braces are additionally arranged on the side faces of the middle part of the main screen frame body is adopted, three steps and two spans are arranged on each cross brace, and each span is additionally arranged;

s2: the cambered surfaces of the two screen frames are formed by connecting module frame bodies, a channel steel structure is formed at the bottom of the module frame by adopting a combined structure system, namely a single-layer steel structure frame system is adopted at a cross channel at the bottom, a disc buckling frame system is adopted at the upper part and a non-channel part of the module frame system, the lateral inclined rods are fully distributed, 4 modules are arranged on each forward inclined rod, steel pipes are adopted for drawing and knotting, 4.5m horizontal cross braces are adopted, and a pedestrian crossing is arranged on the frame body;

s3: the stand frame body sets up the operation packway, adopts the steel pipe to carry out the drawknot between every module support body, and the frame body is indulged transverse spacing 0.9m under the chairman platform, and step 1.5m, the pole setting top sets up the U and holds in the palm, and the joist adopts 1 channel-section steel, lays along long limit, and adjacent channel-section steel junction reaches and holds in the palm the contact surface spot welding with the U to at the bottom of the below square steel pipe that lays along the channel-section steel of channel-section steel, draw the channel-section steel into a whole.

Compared with the prior art, the invention has the beneficial effects that:

1. according to the invention, the large channel is reserved at the bottom of the middle structure of the frame body, so that prop vehicles and performance personnel can conveniently enter the stage from the background through the bottom channel.

2. When the invention is used, the screen structures at the north and south sides block the entrance and exit passage of the stadium, and a large passage needs to be reserved at the bottom, thus facilitating the passing of vehicles and personnel; the screen structures on the north and south sides are designed to be suitable for compact sites and are designed into irregular structural forms, so that the requirements of complex site shapes and foundation bearing capacity are met.

Drawings

FIG. 1 is a schematic plan view of the present invention;

FIG. 2 is a schematic elevational view of the present invention;

FIG. 3 is a cross-sectional view of a first unit body according to the present invention;

FIG. 4 is a cross-sectional view of a third unit body according to the present invention;

FIG. 5 is a schematic view of the structure of the fertilizer trough of the present invention;

FIG. 6 is a schematic view of the bottom node structure of the fertilizer-crossing tank frame body of the present invention;

FIG. 7 is an elevation view of the axis A of FIG. 4 in accordance with the present invention;

FIG. 8 is an elevation view of the axis B of FIG. 4 in accordance with the present invention;

FIG. 9 is an elevational view of the axis C-G of FIG. 4 in accordance with the present invention;

FIG. 10 is a plan view of the channel steel structure of the present invention;

FIG. 11 is a schematic view of the structure of a channel steel structure node according to the present invention.

The objects, features, and advantages of the present invention will be further explained with reference to the accompanying drawings.

The reference numbers illustrate:

101. a first unit body; 102. a second unit body, 103, a third unit body; 104. a fourth unit body; 105; a fifth unit body; 106. a sixth unit cell; 107. a seventh unit cell; 2. a channel steel structure; 3. operating a riding track; 4. a vertical diagonal rod; 5. a channel; 6. a steel backing plate; 7. a person-loading platform; 8. a body guard rail; 9. a large screen; 10. fertilizing a trough; 11. a square-shaped region floor slab bearing plate; 12. a base plate; 13. a bidirectional steel beam.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1, 2 and 11, the present invention provides a fixing structure of a demonstration screen made of light high-strength steel, wherein the frame body of the fixing structure comprises two screen frames;

the bottom of the two screen frames is provided with a channel steel structure, the channel steel structure is formed by adopting a combined structure system, the inner side of the channel steel structure is provided with a channel for vehicles to pass through, the channel adopts a single-layer steel structure frame structure, and a crossing obstacle combined type demonstration screen structure of a disc buckle frame body is erected on the frame body;

the second screen frame is formed by connecting a first unit body, a second unit body, a third unit body, a fourth unit body, a fifth unit body, a sixth unit body and a seventh unit body respectively, and frame bodies of a plurality of unit bodies are erected by adopting socket type disc buckle type steel pipe frames;

two screen frames, constant load: 1. the screen is 65m long, the maximum height is 12m, the minimum height is 7m, the weight is 0.35 kN/square meter, the screen is uniformly arranged at the foremost end of one side of the screen, all upright posts in the foremost row bear vertical force, the vertical force is more than 2 and 2.5 meters, a layer of steel springboard is laid close to the screen at every step of a span frame body, and the weight of the springboard is 0.35 kN/square meter. Live load: 1. the load per floor is 2kN per square meter, the wind load is 2, 0.3kN per square meter, the floor roughness is B type, and the basic period is 2.28 s.

Referring to fig. 2, 5, 6, 7, 8 and 9, an operation walkway is arranged on the frame body of the two screen frames, a body guard rail is arranged on the side wall of the operation walkway, and the safety protection can be achieved when personnel operate on the operation walkway by the arrangement of the body guard rail, and the screen is further included and is fixedly arranged on the side surface of the frame body; the platform is arranged at the top of the frame body and is used for enabling an actor to stand on the frame body during performance; and a steel base plate is arranged at the bottom of the second screen frame, and the steel base plate can be used for supporting the second screen frame.

Referring to fig. 1, 2 and 3, a square-shaped region floor slab bearing plate is arranged in the fixing structure, a fertilizer tank is arranged below one side of the square-shaped region floor slab bearing plate, a bottom plate is arranged at the top of the square-shaped region floor slab bearing plate, and a bidirectional steel beam is arranged on the upper side of the bottom plate.

In some embodiments, the materials in the present application are all made of light high-strength steel, and the chemical components by mass fraction are as follows: c: 1.0-1.2%, Mn: 15-23 wt%, Al: 14 to 16 percent of Nb, 0.01 to 0.2 percent of Nb, less than or equal to 0.03 percent of S, less than or equal to 0.03 percent of P, and the balance of Fe. Tests show that the density of the steel is less than 6.5g/cm3, the yield strength is 1000-1200 MPa, the tensile strength is 1100-1300 MPa, and the elongation is more than 20%.

Furthermore, 3-5% of Cr is added into the light high-strength steel, so that the corrosion resistance of the steel is improved, the structure of the steel is a full-austenite structure, and nano-scale K carbides which are uniformly dispersed and distributed exist in austenite grains.

A method for constructing a fixed structure of a demonstration screen specifically comprises the following steps,

s1: the cambered surface of the main screen frame is formed by connecting module frame bodies, the lateral inclined rods are fully distributed, 2 channels are arranged on each module of the forward inclined rods, steel pipes are adopted for drawing, 3 pedestrian crossing channels are arranged in the middle of the main screen frame, in order to further enhance the overall stability of the frame body, a structural measure that vertical cross braces are additionally arranged on the side face is adopted in the middle of the frame body, three steps and two spans of the cross braces are arranged, and each span is additionally arranged;

s2: the cambered surfaces of the two screen frames are formed by connecting module frame bodies, a combined structure system is adopted at the bottom of the cambered surfaces to form a channel steel structure, namely a single-layer steel structure frame system is adopted at a bottom cross channel, a disc buckling frame system mode is adopted at the upper part and a non-channel part of the cambered surfaces, the lateral inclined rods are fully distributed, 4 channels are arranged on each module of the forward inclined rods, steel pipes are adopted for drawing, 4.5m horizontal cross braces are arranged, a mannequin channel is arranged on the frame bodies, channel steel structures are arranged at the bottom of the two screen frames, and the channel steel structures form a channel for vehicles to pass through;

s3: the stand frame body sets up the operation packway, adopts the steel pipe to carry out the drawknot between every module support body, and the frame body is indulged transverse spacing 0.9m under the chairman platform, and step 1.5m, the pole setting top sets up the U and holds in the palm, and the joist adopts 1 channel-section steel, lays along long limit, and adjacent channel-section steel junction reaches and holds in the palm the contact surface spot welding with the U to at the bottom of the below square steel pipe that lays along the channel-section steel of channel-section steel, draw the channel-section steel into a whole.

Example one

The length of the second screen frame body is 66m, the width is 7.5m, the highest point is 26m, and the lowest point is 9.5 m. The vertical rod is made of a phi 48 steel pipe with the wall thickness of 3.2mm and Q355B. The cross bar is made of a phi 48 steel pipe with the wall thickness of 2.5mm and Q235B. The vertical inclined rod 4 adopts a phi 33 steel pipe with the wall thickness of 2.5mm and Q195B. The transverse spacing of the plate buckle frame is 0.9m, the longitudinal spacing is 1.5m, and the step pitch is 1.5 m. The cambered surface is formed by connecting module frame bodies, the size of each module is 9m long multiplied by 7.5m wide, the lateral inclined rods are fully distributed, 4 channels are arranged on each module of the forward inclined rods, the distance between the foremost rows of the modules is 505mm, and steel pipes are adopted for knotting. And 4.5m of horizontal cross braces are adopted. The support body sets up 3 and gets on the people's horse way. Every span rear side counter weight 5t, front side counter weight 3t, the counter weight chooses for use the counter weight to be the concrete piece. The lamp rack has the length of 24m, the width of 24m and the highest point of 34.5 m. The vertical rod is made of a phi 48 steel pipe with the wall thickness of 3.2mm and Q355B. The cross bar is made of a phi 48 steel pipe with the wall thickness of 2.5mm and Q235B. The vertical inclined rod 4 adopts a phi 33 steel pipe with the wall thickness of 2.5mm and Q195B. The two-step vertical inclined rod 4 with the height of less than 44 meters adopts a phi 42 steel pipe, Q195B. The rest adopt phi 33 diagonal draw bars. The transverse spacing of the plate buckle frame is 1.2m, the longitudinal spacing is 1.2m, and the step pitch is 1.5 m. And 6m of horizontal cross braces. The support body sets up 1 and goes up people's packway. The length of the light projection frame is 10.8m, the width is 24.6m, and the highest point is 35.5 m. The vertical rod is made of a phi 48 steel pipe with the wall thickness of 3.2mm and Q355B. The cross bar is made of a phi 48 steel pipe with the wall thickness of 2.5mm and Q235B. The vertical inclined rod 4 adopts a phi 33 steel pipe with the wall thickness of 2.5mm and Q195B. The transverse spacing of the plate buckle frame is 1.8m, the longitudinal spacing is 1.8m, and the step pitch is 1.5 m. The horizontal cross brace is 6m4 steps. The support body sets up 1 and goes up people's packway. The length of the stand is 98.2m, the width is 27m, and the height of the chairman stand at the highest point of 40m from the ground is 12 m. The vertical rod is made of a phi 48 steel pipe with the wall thickness of 3.2mm and Q355B. The cross bar is made of a phi 48 steel pipe with the wall thickness of 2.5mm and Q235B. The vertical inclined rod 4 adopts a phi 33 steel pipe with the wall thickness of 2.5mm and Q195B. The transverse spacing of the plate buckling frame is 1.8m, the longitudinal spacing is 1.8m, the step pitch is 1.5m, and the step pitch of a local operation layer is 2 m. And 6m of horizontal cross braces. The frame body is provided with 4 horse ways. And steel pipes are adopted for drawknot among the module frame bodies.

The lower frame body of the chairman platform is indulged and is transversely spaced 0.9m, step pitch 1.5m, the pole setting top sets up the U and holds in the palm, and the joist adopts 10# channel-section steel, and interval 0.9m is laid along long limit, for increasing support body overall stability, adjacent channel-section steel junction reaches and holds in the palm the contact surface spot welding with the U to at the bottom of the below perpendicular direction and the channel-section steel that every 3.6m used 40 x 4 x 3's square steel pipe to lay along the channel-section steel at the channel-section steel, draw into a whole to the channel-section steel.

The main screen frame is a hanging screen with a longitudinal and transverse spacing of 1.8m, the first cross span is 0.9m, the step pitch is 1.5m, the step pitch of a local device operation layer is 2m, the horizontal cross brace is 4.5m, the second screen frame is a hanging screen with a transverse spacing of 0.9m, the longitudinal spacing is 1.5m, the step pitch is 1.5m, the horizontal cross brace is 4.5m, the light frame is 1.2m, the longitudinal spacing is 1.2m, the step pitch is 1.5m, the horizontal cross brace is 6m, the light projection frame is 1.8m, the longitudinal spacing is 1.8m, the step pitch is 1.5m, the horizontal cross brace is 6m, the stand is 1.8m, the longitudinal spacing is 1.8m, the step pitch is 1.5m, the step pitch of the local device operation layer is 2m, and the horizontal cross brace is 6 m. The longitudinal and transverse spacing of the chairman platform is 0.9m, and the step pitch is 1.5 m.

The screen frame body is super-long, blocks two gates of an entrance stadium, and in order to guarantee entrance and exit of nearly ten thousand actors and prop cars during activities, a channel with the width of not less than 6m needs to be reserved at the bottom of the frame body for vehicles to pass through, a combined structure system is adopted, namely a single-layer steel structure frame system is adopted at the position of a bottom cross channel, and a form of a disc buckling frame system is adopted at the position of the bottom cross channel and the non-channel position. In addition, the bottom of the pit is crossed over a fertilizer trough 10, a sand pit, a municipal pipe well cover and the like by adopting a steel structure underpinning system, all steel columns and steel beams are made of Q355B, and the section of the steel columns and the steel beams is HW200x200x8x 12;

the distance between the steel structure column and the beam is large, how to assemble and fix the 0.5m multiplied by 1m unit screen on the steel structure ensures the balanced stress of the ultra-long and ultra-high screen, and the screen is not crushed by the concentration of local stress to become a difficult point in the engineering. The invention discloses a U-shaped groove, a triangular support and an L-shaped component combined fixing device.

The large screen 9 is fixed by a combined fixing device of a U-shaped groove, a triangular support and an L-shaped member, wherein the U-shaped groove is fixed on a steel beam by bolts, the L-shaped member is fixed on the U-shaped groove by the triangular support, and finally the screen is fixed on the L-shaped member by the bolts.

While the invention has been described in further detail in connection with specific embodiments thereof, it will be understood that the invention is not limited thereto, and that various other modifications and substitutions may be made by those skilled in the art without departing from the spirit of the invention, which should be considered to be within the scope of the invention as defined by the appended claims.