CN111021551A

CN111021551A - Connecting structure of steel structure beam column and wallboard or floor slab

Info

Publication number: CN111021551A
Application number: CN201911366660.0A
Authority: CN
Inventors: 魏群; 熊登峪; 刘尚蔚; 魏鲁双; 李慧
Original assignee: Henan Oscar Parker Technology Co ltd
Current assignee: Henan Oscar Parker Technology Co ltd; Henan Auspic Technology Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2020-04-17

Abstract

The invention discloses a connecting structure of a steel structure beam and a wallboard or a floor slab, and belongs to the technical field of building components of steel structure buildings. The upper end or the lower end of the wallboard system is connected with a steel structure beam system, after the wallboard system is formed by sequentially stacking multiple layers of straw building components from top to bottom, the straw building components of each layer are connected in series by the prestressed transverse tie bars through increasing the prestressed transverse tie bars in a vertical penetrating manner, and the multiple layers of straw building components are extruded together to form the wallboard after the transverse prestress is added to the prestressed transverse tie bars; the straw building components on the uppermost layer and the lowermost layer of the straw building components on each layer at least comprise a C-shaped steel I and a C-shaped steel II which are buckled with each other and straw wood chip compacted bodies which are sleeved inside the C-shaped steel II in a matching mode. According to the invention, the compression resistance of the straw wood chip compacted body is combined with the tensile property of the C-shaped steel with symmetrical two sides, so that the building member has enough traction prestress, the supporting property of the building member can be obviously improved, and the shearing strength is obviously improved compared with that of the existing filling type large-span steel-structured beam.

Description

Connecting structure of steel structure beam column and wallboard or floor slab

Technical Field

The invention belongs to the technical field of steel structure building house building components, and particularly relates to a connecting structure of a steel structure beam column and a wallboard or a floor slab.

Background

The cold-formed thin-wall steel structure building system is characterized by light dead weight, good earthquake resistance, various connection forms, suitability for complex building modeling, less or no wet operation, suitability for factory optimization design and modular production, short construction period, flexible layout of house patterns, less construction waste, reusable components, near zero environmental pollution and the like, is more and more concerned by people and is listed as a preferred project in bottom-layer and medium-high-rise buildings. At present, the development and application of novel high-strength cold-bending section steel, especially thin-wall cold-bending section steel, have been popularized to a certain extent. However, the deep processing of the product components in the cold-bending thin-wall steel structure is insufficient in China, and the extensive part production and modular production are not achieved. The method is used to adopt a foreign forming technology, and the developed structure system with independent intellectual property rights is few and few, and is lack of independent brands. With the rapid development of new rural construction in recent years, the house demand of novel structures is continuously increased, the traditional concept is gradually changed, steel structure houses are gradually developed in rural areas, the existing steel structure house system structure is heavy, the construction period is long, the cost is high, and the popularization and the application are not facilitated. Especially, in recent years, after the environmental protection standard of engineering environment is improved, a lot of traditional steel structure building components combined with concrete are gradually reduced, after the traditional steel structure building components are built as frameworks, the components are generally poured with concrete, and spaces among the frameworks are filled in a building block or concrete filling mode to form wall bodies or floor support plates, and the filling materials have the advantages of self weight, low heat insulation performance, requirement of on-site pouring construction, setting time, low efficiency and poor construction environment and need to be improved. The construction speed and the construction efficiency are high due to the influence of environmental protection factors, and the construction method also becomes one of new construction requirements.

The inventor Weiqu et al proposed a "steel-wood type steel straw structural system" in 2016, 12, 30, and the patent application with publication No. CN106759905A is aimed at solving the problem of quick installation of the above patent, in which the structural form is formed by wrapping channel-shaped steel and straw compression core body, fixing by rivets and connecting by connecting holes. However, according to the practical process of the inventor, the combined building element of the channel-shaped steel and the straw-wrapped compressed core body adopted in the patent document still has the problem of insufficient bearing strength when used as a beam or a column, and particularly, when the combined building element cannot be directly applied to a large-span beam element system, the upright column design needs to be added according to the accepted strength of the combined building element, or the auxiliary element design needs to be added, so that in practical application, the patent document is not applied to a large-scale composite structure system, and the application range and the popularization value are greatly limited.

The straw sawdust compact is a well-known mature product, is prepared by adding an adhesive, a hydrophobic agent, a flame retardant, a preservative and the like in the preparation process and pressing the mixture by large-ton-level pressure, has good integrity, moisture resistance, flame retardance, holding force, heat preservation and corrosion resistance, is compared with the existing concrete structure only in terms of compression resistance, and has the advantages of equivalent compression strength to the existing concrete structure, but in the aspect of practical application, the straw sawdust compact has lower tensile property and poor shear resistance, and is not suitable for large-span members. Although the above patent document adopts the channel-shaped steel and the wrapped straw compression core (similar to the straw wood chip compact), the strength of the whole building member can be improved to a certain extent by means of the tensile property of the channel-shaped steel, the channel-shaped steel and the straw compression core described in the patent document are not tightly combined and transmitted to the common resistance along the whole rod member and are coordinated with deformation, that is, other direct combination constraint relationship is not existed between the channel-shaped steel and the straw compression core except for the combination by the rivet. Therefore, when the building member is used for the upright post, the building member cannot bear external load with enough strength, and tests prove that after the pressure is increased, the groove-shaped steel can expand towards two sides, so that the wrapping constraint on the straw compression core body is lost, the stress concentration part in the middle of the straw compression core body is locally cracked, and the whole upright post is collapsed due to the fact that the external load is continuously increased. Meanwhile, when the building component is used as a beam system, the small span is not obviously uncomfortable, but the large span (more than 3 meters) is added with solid load to cause the integral bending phenomenon, and the further increase of the load can cause the bending of the local stress concentration area of the groove-shaped steel, thereby causing the local fracture of the straw compression core body. In the early development of the above patent literature technology, the complexity of the edge of the channel-shaped steel is increased, for example, a special-shaped structure is additionally arranged on the edge of the channel-shaped steel and is fixed by a middle cross bracing plate, but the method only depends on increasing the special-shaped edge of the channel-shaped steel to improve the strength of the whole building component, and practice proves that the scheme cannot be completely practical. Therefore, the inventor further improves the technology on the basis of the technical scheme so as to effectively combine the cold-bending thin-wall steel structure and the straw wood chip compacted body to be applied to a building system.

Disclosure of Invention

Aiming at the problems that the traditional building member depending on the combination of the steel structure and the concrete has low on-site pouring construction efficiency and poor construction environment and often does not meet the requirement of environmental protection standard, and aiming at the problem that the application range is limited due to the strength difference in the existing process of combining the cold-formed thin-walled steel structure with the straw compression core, the invention provides a connecting structure of a steel structure beam column and a wallboard or a floor slab, which makes full use of the strong pressure resistance of the straw wood chip compact and combines the tensile property and the fixing effect of C-shaped steel with symmetrical two sides, after the prestress longitudinal tie bar is applied with proper prestress, the compression resistance of the straw wood chip compacted body is combined with the tensile property of the C-shaped steel with symmetrical two sides, so that the building member has enough traction prestress, therefore, the supporting performance of the building member can be obviously improved, and the shearing strength of the building member is obviously improved compared with that of the existing filling type large-span steel-structured beam.

The invention adopts the following scheme for solving the technical problems: a steel structure beam and wallboard or floor connection structure is characterized in that a steel structure beam system is connected to the upper end or the lower end of a wallboard system, after multiple layers of straw building components are sequentially stacked up and down, through increasing a prestressed transverse tie bar in a vertical penetration manner, the straw building components of each layer are connected in series by the prestressed transverse tie bar, and after adding a transverse prestress to each prestressed transverse tie bar, the straw building components of multiple layers are extruded together to form a wallboard; the straw building components of each layer at least comprise buckled C-shaped steel I and C-shaped steel II and straw wood chip compacted bodies matched and sleeved on the inner sides of the buckled C-shaped steel I and the buckled C-shaped steel II, the buckled C-shaped steel I and the buckled C-shaped steel II form a columnar inner cavity, the columnar straw wood chip compacted bodies are matched and sleeved in the inner cavity, the edges of two sides of the C-shaped steel I and the C-shaped steel II and the straw wood chip compacted bodies are fixed together through section steel rivets to form a combined body, and end transverse nodes are sleeved at two ends of the combined body, or outer end plates are sleeved at two ends of the combined body; the method comprises the following steps that longitudinal through holes are formed in a straw sawdust compacted body along the length direction, transverse through holes are formed in the width direction, prestressed longitudinal tie bars penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through corresponding end plate through holes in end transverse nodes or outer end plates respectively, two ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress; the prestressed transverse lacing wires penetrate through transverse through holes of the straw wood chip compacted body and then respectively penetrate through corresponding profile steel through holes on the two sides of the C-shaped steel and the C-shaped steel of each layer of straw building component, two ends of the prestressed transverse lacing wires are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the prestressed transverse lacing wires of the wallboard system penetrate through the transverse through holes of the straw wood chip compacted body and then respectively penetrate through the corresponding section steel through holes on the first side surface and the second side surface of the C-shaped steel of each steel structure beam system, the two ends of the prestressed transverse lacing wires are respectively fixed through the prestressed locking nuts, and each prestressed transverse lacing wire is enabled to have prestress by adjusting each prestressed locking nut.

The straw wood chip pressing body is provided with longitudinal through holes along the length direction and transverse through holes along the width direction, and the prestress longitudinal tie bars penetrate through the longitudinal through holes of the straw wood chip pressing body and then respectively penetrate through corresponding end plate through holes on the end transverse node or the outer end plate, two ends of the prestressed longitudinal tie bars are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress; the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

The end transverse node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end faces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating and installing the longitudinal; the prestressed internal locking nuts are respectively arranged on the thread sections at the two ends of the prestressed longitudinal tie bar of the beam straw building component and supported on the outer end plate or the inner wall of the vertical joint at the end part of the upright post straw building component or a gasket; meanwhile, the screw thread sections at two ends of the longitudinal prestressed tendons are connected with extension screw sleeves, the extension screw sleeves are positioned in end vertical nodes of the upright post straw building components, the outer end of each extension screw sleeve is in threaded connection with an extension screw rod or is fixedly connected with the extension screw rod, the extension screw rods penetrate through corresponding sleeve plate connecting holes arranged on the outer side wall of a square sleeve of the end vertical node, and the outer ends of the extension screw rods are provided with prestressed external locking nuts; and corresponding operation holes are formed in the side walls of the connecting square sleeve, the first C-shaped steel and the second C-shaped steel at the positions corresponding to the extension screw sleeves.

Node flange plates can be arranged on two side edges or four side walls of the outer end plate of the end transverse node, end plate through holes are formed in the node flange plates, and the node flange plates are fixedly connected to the upright post straw building component through node fixing bolts and node locking nuts or prestress is applied to the node fixing bolts through adjusting the node locking nuts.

In addition, the end transverse node can also comprise a contact square sleeve, an inner liner plate and an outer end plate, wherein the inner liner plate is fixed on the inner side of the contact square sleeve, the outer end plate is fixed on the outer side of the connection square sleeve, the inner liner plate and the outer end plate are respectively provided with an end plate through hole corresponding in position and used for penetrating a prestress longitudinal tie bar arranged in each longitudinal through hole of the transverse beam straw building component, the threaded sections at two ends of the prestress longitudinal tie bar are provided with prestress inner lock nuts, each prestress inner lock nut is supported on the side surface of the inner liner plate, the threaded section at the end part of the prestress longitudinal tie bar is arranged in the contact square sleeve, the threaded section in the contact square sleeve is connected with an extension screw sleeve, the other end of the extension screw sleeve is in threaded connection with the extension screw or fixedly connected with the extension screw, the extension screw penetrates through the square sleeve of the end vertical node of the upright column, the exposed end is provided with a prestressed external locking nut, and each prestressed external locking nut is adjusted to enable each prestressed longitudinal tie bar and each extension screw rod to have prestress.

The second scheme adopted by the invention for solving the technical problems is as follows: a steel structure column and wallboard connecting structure is characterized in that steel structure column systems are connected to two sides of a wallboard system, after multiple layers of straw building components are sequentially stacked up and down, through increasing a prestressed transverse tie bar in a vertical penetrating manner, the straw building components on each layer are connected in series by the prestressed transverse tie bar, and after adding a transverse prestress to each prestressed transverse tie bar, the straw building components on each layer are extruded together to form a wallboard; each layer of straw building component comprises a first buckled C-shaped steel, a second buckled C-shaped steel and straw wood chip compacts sleeved on the inner sides of the first buckled C-shaped steel and the second buckled C-shaped steel in a matching mode, the first buckled C-shaped steel and the second buckled C-shaped steel form a columnar inner cavity, the columnar straw wood chip compacts are sleeved in the inner cavity in a matching mode, two side edges of the first buckled C-shaped steel and the second buckled C-shaped steel and the straw wood chip compacts are fixed together through section steel rivets to form a combination body, end transverse nodes are sleeved at two ends of the combination body, or outer end plates are; the method comprises the following steps that longitudinal through holes are formed in a straw sawdust compacted body along the length direction, transverse through holes are formed in the width direction, prestressed longitudinal tie bars penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through corresponding end plate through holes in end transverse nodes or outer end plates respectively, two ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress; the prestressed transverse lacing wires penetrate through transverse through holes of the straw wood chip compacted body and then respectively penetrate through corresponding profile steel through holes on the two sides of the C-shaped steel and the C-shaped steel of each layer of straw building component, two ends of the prestressed transverse lacing wires are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; and end transverse nodes or outer end plates are sleeved at the end parts of the straw building components of each layer of the wallboard system, and end vertical nodes are sleeved at the end parts of the straw building components of the upright posts, and the end transverse nodes or the outer end plates are fixedly connected with the end vertical nodes.

Wherein, the mode that the tip horizontal node or outer end plate and the tip vertical node fixed connection of each layer straw building element is: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

In addition, the end transverse nodes are respectively sleeved at the end parts of the wall boards and the upright post straw building components at the two ends of the wall boards, the end vertical nodes are sleeved at the end parts of the upright post straw building components, the end transverse nodes and the end vertical nodes are fixedly connected, the wall boards and the upright post straw building components both comprise C-shaped steel I and C-shaped steel II which are buckled with each other to form a columnar inner cavity, columnar straw sawdust pressing bodies are matched and sleeved in the inner cavity, the two side edges of the C-shaped steel I and the C-shaped steel II are fixed with the straw sawdust pressing bodies through profile steel rivets to form a combined body, longitudinal through holes are arranged in the straw sawdust pressing bodies along the length direction, transverse through holes are arranged in the width direction, prestress longitudinal tie bars penetrate through the longitudinal through holes of the straw sawdust pressing bodies and then respectively penetrate through corresponding end plate through holes on the end transverse nodes or the outer end plate, and the two ends of the prestress longitudinal tie bars, adjusting each prestress lock nut to enable each prestress longitudinal tie bar to have prestress; the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

Further, the straw wood chip building block comprises a cross beam straw building component and a stand column straw building component, wherein end transverse nodes are sleeved at the end parts of the cross beam straw building component respectively, end vertical nodes are sleeved at the end parts of the stand column straw building component, the end transverse nodes and the end vertical nodes are fixedly connected, the cross beam straw building component and the stand column straw building component respectively comprise a C-shaped steel I and a C-shaped steel II which are buckled with each other to form a columnar inner cavity, columnar straw wood chip pressing bodies are matched and sleeved in the inner cavity, two side edges of the C-shaped steel I and the C-shaped steel II are fixed with the straw wood chip pressing bodies through section steel rivets to form a combined body, longitudinal through holes are formed in the straw wood chip pressing bodies along the length direction, transverse through holes are formed in the width direction, and longitudinal pull ribs of prestress penetrate through the longitudinal through holes of the straw wood chip pressing bodies and then penetrate through corresponding end plate through holes on the end, two ends of the prestressed longitudinal tie bars are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress; the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

The end transverse node comprises a connecting square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connecting square sleeve, the connecting square sleeve is sleeved on the inner sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating and installing the; the prestressed internal locking nuts are respectively arranged on the thread sections at the two ends of the prestressed longitudinal tie bar of the beam straw building component and supported on the outer end plate or the inner wall of the vertical joint at the end part of the upright post straw building component or a gasket; meanwhile, the screw thread sections at two ends of the longitudinal prestressed tendons are connected with extension screw sleeves, the extension screw sleeves are positioned in end vertical nodes of the upright post straw building components, the outer end of each extension screw sleeve is in threaded connection with an extension screw rod or is fixedly connected with the extension screw rod, the extension screw rods penetrate through corresponding sleeve plate connecting holes arranged on the outer side wall of a square sleeve of the end vertical node, and the outer ends of the extension screw rods are provided with prestressed external locking nuts; and corresponding operation holes are formed in the side walls of the connecting square sleeve, the first C-shaped steel and the second C-shaped steel at the positions corresponding to the extension screw sleeves. Or the end transverse node comprises a contact square sleeve, an inner liner plate and an outer end plate, wherein the inner liner plate is fixed on the inner side of the contact square sleeve, the outer end plate is fixed on the outer side of the connection square sleeve, the inner liner plate and the outer end plate are respectively provided with an end plate through hole corresponding to the position for penetrating a prestress longitudinal tie bar arranged in each longitudinal through hole of the cross beam straw building component, the thread sections at two ends of the prestress longitudinal tie bar are provided with prestress inner lock nuts, each prestress inner lock nut is supported on the side surface of the inner liner plate, the thread section at the end part of the prestress longitudinal tie bar is arranged in the contact square sleeve, the thread section in the contact square sleeve is connected with an extension screw sleeve, the other end of the extension screw sleeve is in threaded connection with the extension screw or fixedly connected with the extension screw, the extension screw penetrates through the square sleeve of the end vertical node of the upright column straw building component and, the exposed end is provided with a prestressed external locking nut, and each prestressed external locking nut is adjusted to enable each prestressed longitudinal tie bar and each extension screw rod to have prestress.

The straw sawdust compacting body is internally provided with a tendon hole end for sleeving a prestressed longitudinal tendon or a prestressed transverse tendon, an end nut groove with the diameter larger than that of the tendon hole is arranged, the tendon hole end is sleeved with a connecting nut in a matching mode, the connecting nut is sleeved with a tendon thread section at the tail end of the prestressed longitudinal tendon or the prestressed transverse tendon, the rear side of the connecting nut is connected with a prestressed pull bolt in a threaded mode, the prestressed pull bolt is also sleeved in an end plate through hole of an outer end plate at the same time, and the cap end of the prestressed pull bolt is located outside the end plate through hole.

The straw sawdust compacting body is internally provided with a tendon hole end which is used for sleeving a prestressed longitudinal tendon or a prestressed transverse tendon, a nut groove at the end part with the diameter larger than that of the tendon hole is arranged, a connecting nut is sleeved in a matching manner, the connecting nut is sleeved with a tendon thread section at the tail end of the prestressed longitudinal tendon or the prestressed transverse tendon, a prestressed pull bolt is connected to the rear side of the connecting nut in a threaded manner, when adjacent beams or columns are in butt joint, the spiral directions of the corresponding prestressed pull bolts are opposite, and the two corresponding prestressed pull bolts are simultaneously connected to the same reverse prestressed tensioning lock nut.

The invention has the beneficial effects that:

the invention fully utilizes the strong pressure resistance of the straw sawdust compact, combines the tensile property and the fixing effect of the C-shaped steel with symmetrical two sides, and combines the pressure resistance of the straw sawdust compact and the tensile property of the C-shaped steel with symmetrical two sides after applying moderate prestress to the prestress longitudinal tie bar, so that the building member has enough traction prestress, thereby obviously improving the supporting property of the building member, and particularly obviously improving the shearing strength of the building member when the building member is applied to a beam system compared with the existing filling type large-span steel structure beam.

The invention adds a prestressed transverse tie bar on each butted building member at the same time, which is used for transversely compacting C-shaped steel and straw wood chip compact bodies which are symmetrical at two sides and providing prestress for resisting longitudinal prestress along the longitudinal direction, thereby combining the longitudinal prestress and the transverse prestress to improve the strength of the building member.

The longitudinal prestressed lacing wire at the end part of each building component for butt joint can penetrate through the corresponding connecting building component from the end part, the transverse prestressed lacing wire at the middle part can improve the self strength and transverse prestress of each building component, the adjacent building components can be connected into a whole and simultaneously exert transverse prestress, and the prestress connection relationship of each building component is realized by combining the longitudinal prestress and the transverse prestress.

The whole heat conductivity coefficient of each building component is small. The invention adopts the straw and wood chip compacted body, which means the straw compacted body or the wood chip compacted body or the mixed compacted body of the straw and the wood chip, and has lower heat conductivity coefficient. The thermal conductivity coefficient refers to the heat quantity transferred by 1 square meter area in 1 hour through 1 square meter of material with the temperature difference of 1 degree (K, DEG C) on the two side surfaces under the condition of stable heat transfer, and is related to the building energy consumption, indoor environment and many other heat and humidity processes, the thermal conductivity coefficient is related to the factors of the composition structure, density, water content and temperature of the material, the material with low thermal conductivity coefficient is usually defined as the heat preservation material, for example, the thermal conductivity coefficient of the common clay brick is 0.7-0.8W/(m.K), the transverse thermal conductivity coefficient of the wood is 0.14W/(m.K), the longitudinal thermal conductivity coefficient of the wood is 0.38W/(m.K), the thermal conductivity of the steel is 36-54W/(m.K), the air heat conductivity coefficient is 0.023 w/(m.K), the heat conductivity coefficient of the straw is smaller than that of wood, and the heat conductivity coefficient of the straw sawdust compacted body is slightly larger than that of the wood and obviously smaller than that of a common clay brick through tests, so that the straw sawdust compacted body is a good heat-insulating material and is a material for passive housing.

Wherein the screw or the nut which is arranged at the outer end of the building component and used for increasing the prestress can respectively adopt a torsional shear bolt or a torsional shear nut so as to achieve the purpose of providing the rated prestress at a fast fixed limit.

The invention is assembled, processes in the frame, is easy to transport and assemble on site.

The invention has standard and single realization form, is very easy to assemble and connect, can obviously improve the construction efficiency, does not need to cut, weld and punch on site, and reduces the workload and the environmental pollution.

The assembly pattern drawings of the invention are easy to understand, and the prestress tensioning and corresponding end locking pieces determine the positions of the prestress bolt and the connecting structural member according to the BIM structure drawing.

Because the invention adopts the prestressed structure in the building member respectively, and takes the prestress as the important part of the bearing force of the building member, the requirement on the material property of the compression lifting for supporting the inner side of the building member is not high, namely, the building member can be pressed and formed by straw or wood chips and the like with various patterns.

The invention replaces the connection relation of the node boxes adopted in the prior patent by the structure of the prestressed connecting piece and the tensioning piece, can obviously reduce the material cost and the working hour cost of each construction, and has simple and easy and efficient connection process.

The invention is a preferred form of passive housing. Besides the compact straw brick, the straw brick can also be used for mixing straw particles with adhesive, gypsum powder, cement powder and geopolymer and filling.

Drawings

Fig. 1 is a schematic perspective view of the connection of a steel beam or wall panel and a column member according to the present invention.

Fig. 2 is a schematic front view of the structure of fig. 1.

Fig. 3 is an enlarged schematic view of a portion a of fig. 1.

Fig. 4 is one of the schematic views of the connection structure of the steel beam and the column.

Fig. 5 is an enlarged structural diagram of B-B in fig. 4.

Fig. 6 is a schematic view of the cross-sectional structure B-B in fig. 4.

Fig. 7 is an enlarged schematic view of fig. 6.

Fig. 8 is a second schematic view of the connection structure of the steel beam and the column.

Fig. 9 is one of the schematic cross-sectional structures of C-C in fig. 8.

FIG. 10 is a second schematic view of the cross-sectional structure C-C of FIG. 8.

Fig. 11 is a third schematic view of the connection structure of the steel beam and the column.

Fig. 12 is a schematic view of the cross-sectional structure D-D in fig. 11.

Reference numbers in the figures: 1 is a wallboard system, 2a is a beam straw building component, 2b is a column straw building component, 201 is a C-shaped steel I, 202 is a C-shaped steel II, 203 is a straw wood chip compact, 208 is a section steel rivet hole, 3a is an end transverse node, 3b is an end vertical node, 301 is a contact square sleeve, 302 is an inner backing plate, 303 is an outer end plate, 304 is an end plate through hole, 305 is a sleeve plate connecting hole, 306 is a node rivet hole, 307 is a node fixing bolt, 308 is a node flange plate, 309 is a node lock nut, 310 is an operation hole, 4 is a prestress longitudinal tie bar, 401 is a tie bar threaded section, 402 is a tie bar hole, an end nut groove, 5 is a prestress transverse tie bar, 7 is an extension screw sleeve, 701 is an extension screw rod, 801 is a connecting nut, 802 is a forward prestress tie bar, 802a reverse prestress tie bar, 804 is prestress lock nut, 8a is prestress inner lock nut, 8b is prestress outer lock nut, 805 is a reverse prestress tensioning lock nut, 11 is a backing plate, 13 is a plane connecting plate, 14 is a right-angle connecting plate, and 16 is a fixing screw nut.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Example 1: the building system is reinforced by combining cold-formed thin-wall steel and straw sawdust compacted bodies and applying prestress, and comprises a steel-structure beam and wallboard or floor slab connecting structure, a steel-structure column and wallboard connecting structure, a structure column and beam connecting structure, a beam and beam connecting structure and the like, wherein the positions of prestress bolts and connecting structural parts are determined by tensioning each prestress and corresponding end locking parts according to a BIM structure diagram.

The connecting structure of the steel beam (or column) and the wallboard is based on the beam in figure 1, and is connected with the upper end or the lower end of the wallboard system through a steel beam system. The wallboard system as shown in fig. 2 is formed by sequentially stacking multiple layers of straw building components from top to bottom.

The uppermost layer and the lowermost layer or any middle layer of straw building components: the straw wood chip pressing body is characterized by comprising a first buckled C-shaped steel, a second buckled C-shaped steel and a straw wood chip pressing body, wherein the inner sides of the first buckled C-shaped steel and the second buckled C-shaped steel are matched and sleeved with each other, the first buckled C-shaped steel and the second buckled C-shaped steel form a columnar inner cavity, the columnar straw wood chip pressing body is matched and sleeved in the inner cavity, two side edges of the first buckled C-shaped steel and the second buckled C-shaped steel are fixed with the straw wood chip pressing body through section steel rivets to form a combined body, end transverse nodes are sleeved at; the longitudinal through holes are formed in the straw sawdust compacted body along the length direction, the transverse through holes are formed in the width direction, the longitudinal prestressed tendons penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through the corresponding end plate through holes in the end transverse node or the outer end plate, two ends of each longitudinal prestressed tendon are fixed through the prestressed locking nuts respectively, and each longitudinal prestressed tendon is enabled to have prestress by adjusting each prestressed locking nut.

The straw sawdust compact is prepared by adding an adhesive, a hydrophobic agent, a flame retardant, a preservative and the like in the preparation process and pressing under the pressure of large tons, has good integrity, moisture resistance, flame retardance, holding force, heat preservation and corrosion resistance, is only compared with the compression resistance, and has the same compression strength as the existing concrete cast body. The invention adopts the straw and wood chip compacted body, which means the straw compacted body or the wood chip compacted body or the mixed compacted body of the straw and the wood chip, and has lower heat conductivity coefficient. The thermal conductivity coefficient refers to the heat quantity transferred by 1 square meter area in 1 hour through 1 square meter of material with the temperature difference of 1 degree (K, DEG C) on the two side surfaces under the condition of stable heat transfer, and is related to the building energy consumption, indoor environment and many other heat and humidity processes, the thermal conductivity coefficient is related to the factors of the composition structure, density, water content and temperature of the material, the material with low thermal conductivity coefficient is usually defined as the heat preservation material, for example, the thermal conductivity coefficient of the common clay brick is 0.7-0.8W/(m.K), the transverse thermal conductivity coefficient of the wood is 0.14W/(m.K), the longitudinal thermal conductivity coefficient of the wood is 0.38W/(m.K), the thermal conductivity of the steel is 36-54W/(m.K), the air heat conductivity coefficient is 0.023 w/(m.K), the heat conductivity coefficient of the straw is smaller than that of wood, and the heat conductivity coefficient of the straw sawdust compacted body is slightly larger than that of the wood and obviously smaller than that of a common clay brick through tests, so that the straw sawdust compacted body is a good heat-insulating material and is a material for passive housing.

In the above, the straw wood chip compacted body is a brick section which is formed by pressing in a die through a large-tonnage press, and a lacing wire hole for sleeving a prestress longitudinal lacing wire or a prestress transverse lacing wire is reserved in the brick section, or a corresponding abdicating hole is arranged at the end part of the brick section for installing a transverse joint at the end part or a connecting nut and other necessary components. And after the whole construction system or the part of the construction system is finished, filling compressed straw particles into the redundant space of the corresponding abdicating hole (the bearing structure is established, and the rest space is basically not bearing force) to cast the construction body or fill other foam ceramsite prefabricated materials, wherein the foam ceramsite prefabricated materials are used for completely sealing the construction system, and the performances of heat insulation, flame retardance, hydrophobicity, sound insulation and the like are improved while the self tensile and compression bending bearing performance of the construction body is improved.

The prestressed transverse tie bars (the direction is vertical) are added to the multilayer stacked straw building components in a vertical penetrating mode, so that the straw building components on each layer are connected in series by the prestressed transverse tie bars, and the multilayer straw building components are extruded together to form the wallboard after the transverse prestress is added to each prestressed transverse tie bar.

In this embodiment, the prestressed longitudinal tie bars 4 added at first can provide a prestressed pulling force, and form a repulsive force with the C-shaped steel and straw wood chip compacted bodies 203 on both sides, that is, a reaction force is formed between the pulling force of the prestressed longitudinal tie bars 4 and the C-shaped steel and straw wood chip compacted bodies 203 on both sides. In fact, the pulling force of the prestressed longitudinal tie bar 4 mainly acts on the straw wood chip compacted body 203 through the end transverse joints 3a at the two ends and then acts on the C-shaped steel. Therefore, the load-bearing performance of the building element is not completely dependent on the tensile strength of the C-shaped steel, but depends on the tensile strength of the combined stress, but from the aspect of the tensile strength of the building element, the prestressed longitudinal tie bars 4 can provide strong tensile performance because the prestressed tensile force is applied in advance, and the deformation of the building element and the straw wood chip compacted body 203 inside the building element can be eliminated by the longitudinal prestress before deformation.

On the basis, the prestressed transverse tie bars 5 penetrate through the transverse through holes 205 of the straw wood chip compacted body 203 and then respectively penetrate through the corresponding section steel through holes 206 on the side surfaces of the first C-section steel 201 and the second C-section steel 202, two ends of the prestressed transverse tie bars 5 are respectively fixed through the prestressed locking nuts 8, and the prestressed locking nuts 8 are adjusted to enable the prestressed transverse tie bars 5 to have prestress. Through addding horizontal lacing wire 5 of prestressing force and can not making both sides C shaped steel and the straw saw-dust compact 203 at middle part pass through pressure connection together, can ensure moreover that straw saw-dust compact 203 self has prestressing force along the horizontal for the vertical lacing wire 4 of countermeasures prestressing force can overcome the straw saw-dust compact 203 through horizontal prestressing force promptly and open, thereby prevent that the straw saw-dust compact 203 from warping (by horizontal prestressing force elimination this deformation possibility before warping). Thus, the shear resistance can be improved.

On the other hand, due to the prestress pressing and wrapping effect of the C-shaped steel on the two sides on the straw sawdust compacted body 203, the straw sawdust compacted body 203 can guarantee an even stress state, and the problem that the whole building component is collapsed due to damage caused by local stress concentration finally does not occur. Thus, the shear resistance can be improved. The transverse prestress tension on the C-shaped steel on both sides of the building element can be changed in distribution according to load distribution, for example, the transverse prestress tension is usually added in the middle of the building element to improve the shearing resistance of the middle of the building element.

As shown in fig. 1 and 5, the end transverse node 3a includes a contact square sleeve 301 and an outer end plate 303, wherein the outer end plate 303 is fixed outside the connection square sleeve, the contact square sleeve 301 is sleeved inside two ends of the first C-shaped steel 201 and the second C-shaped steel 202, the outer end plate 303 is located outside two ends of the first C-shaped steel 201 and the second C-shaped steel 202, the outer end plate 303 is butted with end faces of the first C-shaped steel 201 and the second C-shaped steel 202, and an end plate through hole 304 is provided on the outer end plate 303 for installing the longitudinal prestressed tendon 4 therethrough. And furthermore, sleeve plate connecting holes 305 and node rivet holes 306 are uniformly distributed on the side wall of the connecting square sleeve, and the section steel rivet holes 208 arranged on the side walls of the first C-section steel 201 and the second C-section steel 202 correspond to the node rivet holes 306 on the connecting square sleeve and are fixed together through node rivets. Corresponding sleeve plate connecting holes 305 are formed in two opposite side walls of the connecting square sleeve and used for penetrating through a node fixing bolt 307 and being fixed through a node locking nut 309 and used for connecting a cross member. The node fixing bolt 307 may be further prestressed by adjusting a node locking nut 309.

As shown in fig. 2, the prestressed transverse tie bars of the wallboard system penetrate through the transverse through holes of the straw wood chip compacted body and then respectively penetrate through the corresponding section steel through holes on the first side surface of the C-section steel and the second side surface of the C-section steel of each steel structure beam system, two ends of the prestressed transverse tie bars are respectively fixed by the prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse tie bar to have prestress.

The above method for fastening each tie bar and increasing the prestress further comprises that an end nut groove with a diameter larger than that of the tie bar hole is arranged at one end of the tie bar hole for sleeving the prestress longitudinal tie bar or the prestress transverse tie bar in the straw sawdust compacting body, and a connecting nut is sleeved in a matching manner, the connecting nut is sleeved with a tie bar thread section at the tail end of the prestress longitudinal tie bar or the prestress transverse tie bar, a prestress tie bolt is connected to the rear side of the connecting nut in a threaded manner, the prestress tie bolt is also sleeved in an end plate through hole of the outer end plate, and the cap end of the prestress tie bolt is positioned outside the end plate through hole. After the longitudinal prestressed lacing wire 4 or the transverse prestressed lacing wire 5 passes through the lacing wire hole of the straw sawdust pressing body 203 in a matched mode, one end of the longitudinal prestressed lacing wire 4 or the transverse prestressed lacing wire 5 is fixedly connected through a fixing cap or a prestressed locking nut, the other end of the longitudinal prestressed lacing wire 4 or the transverse prestressed lacing wire 5 is connected through a connecting nut located in a nut groove at the end portion, and prestress is not applied at the moment. And then the prestress tie bolt is fixedly connected with the connecting nut, the prestress tie bolt can be applied only by further rotating the prestress tie bolt, and at the moment, the prestress tie bolt pulls the connecting nut to further pull the prestress longitudinal tie bar or the prestress transverse tie bar to generate prestress.

Example 2: on the basis of the implementation 1, a beam straw building component and a column straw building component shown in figures 1 and 2 are further adopted. One of the connection forms at the butt joint position of the two is as shown in fig. 5, the end transverse node is sleeved at the end of the beam straw building component, the end vertical node is sleeved at the end of the column straw building component, and the end transverse node and the end vertical node are fixedly connected. The beam straw building component and the column straw building component both comprise a first C-shaped steel and a second C-shaped steel which are buckled with each other to form a cylindrical inner cavity, the inner cavity is internally matched with a cylindrical straw sawdust compact, and the edges of the two sides of the first C-shaped steel and the edges of the two sides of the second C-shaped steel are fixed with the straw sawdust compact through section steel rivets to form a combined body. The longitudinal through holes are formed in the straw sawdust compacted body along the length direction, the transverse through holes are formed in the width direction, the longitudinal prestressed tendons penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through the corresponding end plate through holes in the end transverse node or the outer end plate, two ends of each longitudinal prestressed tendon are fixed through the prestressed locking nuts respectively, and each longitudinal prestressed tendon is enabled to have prestress by adjusting each prestressed locking nut. Meanwhile, the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through the prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress.

As shown in fig. 5, the fixed connection of the end transverse nodes and the end vertical nodes is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

Example 3: on the basis of the embodiment 2, the prestressed longitudinal tie without the extension screw sleeve and the extension screw rod is shown in fig. 6 and 7, and the design aims to facilitate the prestressed longitudinal tie between the beam end and the upright post, namely, the tension of the prestressed longitudinal tie of the original beam can be kept unchanged, and the tension of the original prestressed longitudinal tie is transmitted to the outer side surface of the upright post through the extension screw sleeve and the extension screw rod. The end transverse node comprises a connecting square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connecting square sleeve, the connecting square sleeve is sleeved on the inner sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating and installing the longitudinal prestressed; the prestressed internal locking nuts are respectively arranged on the thread sections at the two ends of the prestressed longitudinal tie bar of the beam straw building component and supported on the outer end plate or the inner wall of the vertical joint at the end part of the upright post straw building component or a gasket; meanwhile, the screw thread sections at two ends of the longitudinal prestressed tendons are connected with extension screw sleeves, the extension screw sleeves are positioned in end vertical nodes of the upright post straw building components, the outer end of each extension screw sleeve is in threaded connection with an extension screw rod or is fixedly connected with the extension screw rod, the extension screw rods penetrate through corresponding sleeve plate connecting holes arranged on the outer side wall of a square sleeve of the end vertical node, and the outer ends of the extension screw rods are provided with prestressed external locking nuts; and corresponding operation holes are formed in the side walls of the connecting square sleeve, the first C-shaped steel and the second C-shaped steel at the positions corresponding to the extension screw sleeves.

Example 4: on the basis of embodiment 2 or embodiment 3, node flange plates may be further disposed on two side edges or four side walls of the outer end plate of the end transverse node, as shown in fig. 5 to 7, the node flange plates are provided with end plate through holes, and are fixed by node fixing bolts and node locking nuts for being connected to the upright post straw building component, or prestress is applied to the node fixing bolts by adjusting the node locking nuts.

Example 5: on the basis of embodiment 3, the end transverse node may further include a contact square sleeve, an inner liner plate and an outer end plate, wherein the inner liner plate is fixed inside the contact square sleeve, the outer end plate is fixed outside the connection square sleeve, the inner liner plate and the outer end plate are respectively provided with corresponding end plate through holes for penetrating a pre-stressed longitudinal tie bar installed in each longitudinal through hole of the beam straw building member, pre-stressed inner locking nuts are installed on threaded sections at both ends of the pre-stressed longitudinal tie bar, each pre-stressed inner locking nut is supported on a side surface of the inner liner plate, the threaded section at the end of the pre-stressed longitudinal tie bar is located in the contact square sleeve, an extension screw sleeve is connected to the threaded section in the contact square sleeve, the other end of the extension screw sleeve is connected with the extension screw rod or fixedly connected with the extension screw rod, the extension screw rod penetrates through the square sleeve of the end vertical node of the column straw building member and penetrates out from, the exposed end is provided with a prestressed external locking nut, and each prestressed external locking nut is adjusted to enable each prestressed longitudinal tie bar and each extension screw rod to have prestress.

Example 6: another kind of steel structure post and wallboard connection structure is based on the post in fig. 1, and steel structure post systems are connected with both sides of the wallboard system.

After the multilayer straw building components are sequentially stacked up and down, the prestressed transverse tie bars are vertically penetrated to increase the prestressed transverse tie bars, so that the straw building components on each layer are connected in series by the prestressed transverse tie bars, and the multilayer straw building components are extruded together to form the wallboard after the transverse prestress is added to the prestressed transverse tie bars.

Contain each layer straw building element in wallboard system, the straw saw-dust of suit including the C shaped steel one and the C shaped steel two of cross-under and the inboard thereof matches the entity of pressing, the cylindrical inner chamber is constituteed with C shaped steel two to the C shaped steel one of cross-under, match the cylindrical straw saw-dust entity of pressing of suit in the inner chamber, pass through shaped steel fix with rivet between the both sides edge of C shaped steel one and C shaped steel two and the straw saw-dust entity of pressing, form the assembly, the both ends cover of this assembly is equipped with the horizontal node of tip, perhaps the both ends cover at the assembly is equipped with outer end plate. The longitudinal through holes are formed in the straw sawdust compacted body along the length direction, the transverse through holes are formed in the width direction, the longitudinal prestressed tendons penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through the corresponding end plate through holes in the end transverse node or the outer end plate, two ends of each longitudinal prestressed tendon are fixed through the prestressed locking nuts respectively, and each longitudinal prestressed tendon is enabled to have prestress by adjusting each prestressed locking nut. The prestressed transverse lacing wires penetrate through transverse through holes of the straw wood chip compacted body and then respectively penetrate through corresponding profile steel through holes on the two sides of the C-shaped steel and the C-shaped steel of each layer of straw building component, two ends of the prestressed transverse lacing wires are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; and end transverse nodes or outer end plates are sleeved at the end parts of the straw building components of each layer of the wallboard system, and end vertical nodes are sleeved at the end parts of the straw building components of the upright posts, and the end transverse nodes or the outer end plates are fixedly connected with the end vertical nodes.

Wherein, the fixed connection mode of the end transverse node or the outer end plate of each layer of straw building component and the end vertical node is as shown in fig. 2: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

Example 7: on the basis of the embodiment 6, end transverse nodes are sleeved at the end parts of the wall boards respectively at the butt joint positions of the wall board system and the upright post straw building components at the two ends of the wall board system, end vertical nodes are sleeved at the end parts of the upright post straw building components respectively, and the end transverse nodes and the end vertical nodes are fixedly connected, as shown in fig. 2 and 5. The wallboard system and the upright post straw building component both comprise a first C-shaped steel and a second C-shaped steel which are buckled with each other to form a cylindrical inner cavity, a cylindrical straw wood chip compacted body is matched and sleeved in the inner cavity, two side edges of the first C-shaped steel and the second C-shaped steel are fixed with the straw wood chip compacted body through a profile steel rivet to form a combined body, a longitudinal through hole is formed in the straw wood chip compacted body along the length direction, a transverse through hole is formed in the width direction, a longitudinal prestressed lacing wire penetrates through the longitudinal through hole of the straw wood chip compacted body and then respectively penetrates through a corresponding end plate through hole on an end transverse node or an outer end plate, two ends of the longitudinal prestressed lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each longitudinal prestressed lacing wire to have prestress; the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

Example 8: the method is characterized by further comprising a beam straw building component and a column straw building component on the basis of the embodiment 7, as shown in fig. 4-7, wherein end transverse nodes are sleeved on the end parts of the beam straw building component and end vertical nodes are sleeved on the end parts of the column straw building component at the butt joint positions of the beam straw building component and the column straw building component respectively, the end transverse nodes and the end vertical nodes are fixedly connected, the beam straw building component and the column straw building component both comprise a columnar inner cavity formed by buckling C-shaped steel I and C-shaped steel II, columnar straw chip pressing bodies are matched and sleeved in the inner cavity, two side edges of the C-shaped steel I and the C-shaped steel II are fixed with the straw chip pressing bodies through section steel rivets to form a combined body, longitudinal through holes are formed in the straw chip pressing bodies along the length direction, transverse through holes are formed in the width direction, and pre-stress longitudinal tie bars penetrate through, and the two ends of the prestressed longitudinal tie bars are respectively fixed by prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress. The prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

Example 9: on the basis of embodiment 7, as shown in fig. 4-7, the end transverse node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed outside the connection square sleeve, the contact square sleeve is sleeved inside two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is positioned outside two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with end faces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for installing the longitudinal prestressed tie bar in a penetrating manner; the prestressed internal locking nuts are respectively arranged on the thread sections at the two ends of the prestressed longitudinal tie bar of the beam straw building component and supported on the outer end plate or the inner wall of the vertical joint at the end part of the upright post straw building component or a gasket; meanwhile, the screw thread sections at two ends of the longitudinal prestressed tendons are connected with extension screw sleeves, the extension screw sleeves are positioned in end vertical nodes of the upright post straw building components, the outer end of each extension screw sleeve is in threaded connection with an extension screw rod or is fixedly connected with the extension screw rod, the extension screw rods penetrate through corresponding sleeve plate connecting holes arranged on the outer side wall of a square sleeve of the end vertical node, and the outer ends of the extension screw rods are provided with prestressed external locking nuts; and corresponding operation holes are formed in the side walls of the connecting square sleeve, the first C-shaped steel and the second C-shaped steel at the positions corresponding to the extension screw sleeves.

Example 10: on the basis of example 9, as shown in fig. 4 and 9, the end transverse node comprises a contact square sleeve, an inner cushion plate and an outer end plate, wherein the inner cushion plate is fixed at the inner side of the contact square sleeve, the outer end plate is fixed at the outer side of the contact square sleeve, the inner cushion plate and the outer end plate are respectively provided with an end plate through hole corresponding in position and used for penetrating through a prestressed longitudinal tie bar installed in each longitudinal through hole of the beam straw building component, a prestressed inner lock nut is installed on a threaded section at both ends of the prestressed longitudinal tie bar and supported on the side surface of the inner cushion plate, a threaded section at the end of the prestressed longitudinal tie bar is positioned in the contact square sleeve, an extension screw sleeve is connected on a threaded section in the contact square sleeve, the other end of the extension screw sleeve is connected with an extension screw rod or fixedly connected with the extension screw rod, the extension screw rod penetrates through the square sleeve of the end vertical node of the column straw building component, and, the exposed end is provided with a prestressed external locking nut, and each prestressed external locking nut is adjusted to enable each prestressed longitudinal tie bar and each extension screw rod to have prestress.

Example 11: on the basis of embodiment 1, the end nut groove with the diameter larger than that of the lacing hole is arranged at one end of the lacing hole for sleeving the prestress longitudinal lacing wire or the prestress transverse lacing wire in the straw sawdust compacting body, the connecting nut is sleeved with the lacing wire threaded section at the tail end of the prestress longitudinal lacing wire or the prestress transverse lacing wire in a matching mode, the rear side of the connecting nut is connected with the prestress lacing bolt in a threaded mode, the prestress lacing bolt is also sleeved in the end plate penetrating hole of the outer end plate at the same time, and the cap end of the prestress transverse lacing wire or the prestress transverse lacing wire is located outside the end plate penetrating hole.

As shown in fig. 2 and 3, after the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is matched and passes through the tie bar hole of the straw wood chip compacted body 203, one end of the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is fixedly connected through a fixing cap or a prestressed locking nut 804, and the other end is connected through a connecting nut 801 located in an end nut groove 403, and no prestress is applied at this time. And then the prestress is applied by further rotating the prestress tie bolt 802 through the fixed connection of the prestress tie bolt 802 and the connecting nut 801, at this time, the prestress tie bolt 802 pulls the connecting nut 801 to further pull the prestress longitudinal tie bar 4 or the prestress transverse tie bar 5, and prestress is generated.

Example 12: on the basis of the embodiment 1, when the wall body is connected with a beam or a column, as shown in fig. 8 and 10, one end of a tendon hole for sleeving a prestressed longitudinal tendon or a prestressed transverse tendon is arranged in a straw sawdust compacting body, an end nut groove with a diameter larger than that of the tendon hole is arranged and is sleeved with a connecting nut in a matching manner, the connecting nut is sleeved with a tendon threaded section at the tail end of the prestressed longitudinal tendon or the prestressed transverse tendon, a prestressed pull bolt is connected to the rear side of the connecting nut in a threaded manner, the prestressed pull bolt is also sleeved in an end plate through hole of an outer end plate, and the cap end of the prestressed pull bolt is positioned outside the end plate through hole.

After the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is matched and penetrates through the tie bar hole of the straw wood chip compacting body 203, one end of the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is fixedly connected through a fixing cap or a prestressed locking nut 804, the other end of the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is connected through a connecting nut 801 located in an end nut groove 403, and prestress is not applied at the moment. And then the prestress is applied by further rotating the prestress tie bolt 802 through the fixed connection of the prestress tie bolt 802 and the connecting nut 801, at this time, the prestress tie bolt 802 pulls the connecting nut 801 to further pull the prestress longitudinal tie bar 4 or the prestress transverse tie bar 5, and prestress is generated.

Example 13: on the basis of the embodiment 1, one end of a tendon hole for sleeving a prestressed longitudinal tendon or a prestressed transverse tendon is arranged in a straw sawdust compacting body, an end nut groove with the diameter larger than that of the tendon hole is arranged, a connecting nut is sleeved in a matching manner, the connecting nut is sleeved with a tendon thread section at the tail end of the prestressed longitudinal tendon or the prestressed transverse tendon, a prestressed pull bolt is connected to the rear side of the connecting nut in a threaded manner, when adjacent beams or columns are in butt joint, the spiral directions of the corresponding prestressed pull bolts are opposite, and the two corresponding prestressed pull bolts are simultaneously connected with the same reverse prestressed tensioning lock nut.

As shown in fig. 11, after the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is matched with the tie bar hole penetrating through the straw wood chip compacted body 203, one end of the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is fixedly connected through a fixing cap or a prestressed locking nut 804, and the other end is connected through a connecting nut 801 located in an end nut groove 403, and at this time, no prestress is applied. The prestress is applied by fixedly connecting the prestress tie bolt 802 with the connecting nut 801 and further rotating the prestress tie bolt 802, and at this time, the prestress tie bolt 802 pulls the connecting nut 801 to further pull the prestress longitudinal tie bar 4 or the prestress transverse tie bar 5 to generate prestress. Wherein, the screw directions of the connecting nut 801 and the prestress pulling bolt 802 are both positive or both reverse. For example, in fig. 12, when the adjacent beam is connected with the beam or the adjacent column is butted with the column, the spiral directions of the corresponding prestressed pull bolts are opposite, and the two corresponding prestressed pull bolts are simultaneously connected with the same reverse prestressed tension lock nut.

Embodiment 14 on the basis of the above embodiments, the edge of the C-shaped steel can also comprise a straight flanging, and the straight flanging is embedded into the corresponding embedded groove on the side surface of the straw wood chip compacting body. The straw wood chip compacted body can also be used for mixing straw particles with adhesives, gypsum powder, cement powder and geopolymer and filling materials.

Claims

1. A steel structure beam and wallboard or floor connection structure is characterized in that a steel structure beam system is connected to the upper end or the lower end of a wallboard system, after multiple layers of straw building components are sequentially stacked up and down in the wallboard system, a prestressed transverse tie bar is added through vertical penetration, so that the straw building components of each layer are connected in series by the prestressed transverse tie bar, and after transverse prestress is added to each prestressed transverse tie bar, the multiple layers of straw building components are extruded together to form a wallboard; the straw building components of each layer at least comprise buckled C-shaped steel I and C-shaped steel II and straw wood chip compacted bodies matched and sleeved on the inner sides of the buckled C-shaped steel I and the buckled C-shaped steel II, the buckled C-shaped steel I and the buckled C-shaped steel II form a columnar inner cavity, the columnar straw wood chip compacted bodies are matched and sleeved in the inner cavity, the edges of two sides of the C-shaped steel I and the C-shaped steel II and the straw wood chip compacted bodies are fixed together through section steel rivets to form a combined body, and end transverse nodes are sleeved at two ends of the combined body, or outer end plates are sleeved at two ends of the combined body; the method comprises the following steps that longitudinal through holes are formed in a straw sawdust compacted body along the length direction, transverse through holes are formed in the width direction, prestressed longitudinal tie bars penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through corresponding end plate through holes in end transverse nodes or outer end plates respectively, two ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress; the prestressed transverse lacing wires penetrate through transverse through holes of the straw wood chip compacted body and then respectively penetrate through corresponding profile steel through holes on the two sides of the C-shaped steel and the C-shaped steel of each layer of straw building component, two ends of the prestressed transverse lacing wires are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the prestressed transverse lacing wires of the wallboard system penetrate through the transverse through holes of the straw wood chip compacted body and then respectively penetrate through the corresponding section steel through holes on the first side surface and the second side surface of the C-shaped steel of each steel structure beam system, the two ends of the prestressed transverse lacing wires are respectively fixed through the prestressed locking nuts, and each prestressed transverse lacing wire is enabled to have prestress by adjusting each prestressed locking nut.

2. The steel structure beam and wallboard or floor connection structure of claim 1, further comprising a beam straw building member and a column straw building member, wherein the butt joint position of the beam straw building member and the column straw building member is respectively sleeved with a transverse node at the end of the beam straw building member, and a vertical node at the end of the column straw building member, and the transverse node and the vertical node at the end are fixedly connected, the beam straw building member and the column straw building member both comprise a column-shaped inner cavity formed by buckled C-type steel I and C-type steel II, the inner cavity is matched and sleeved with a column-shaped straw sawdust pressing body, two side edges of the C-type steel I and the C-type steel II are fixed together with the straw sawdust pressing body through a steel rivet to form a combined body, the straw sawdust pressing body is provided with a longitudinal through hole along the length direction, a transverse through hole along the width direction, and a prestress longitudinal tie bar penetrates through the longitudinal through hole of the straw sawdust pressing, and respectively penetrate through corresponding end plate through holes on the end transverse node or the outer end plate; the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

3. The steel structure beam and wallboard or floor connection structure of claim 2, wherein the end transverse node comprises a connection square sleeve and an outer end plate, wherein the outer end plate is fixed outside the connection square sleeve, the connection square sleeve is sleeved inside two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is located outside two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is in butt joint with end faces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating and installing the prestress longitudinal tie bar; the prestressed internal locking nuts are respectively arranged on the thread sections at the two ends of the prestressed longitudinal tie bar of the beam straw building component and supported on the outer end plate or the inner wall of the vertical joint at the end part of the upright post straw building component or a gasket; meanwhile, the screw thread sections at two ends of the longitudinal prestressed tendons are connected with extension screw sleeves, the extension screw sleeves are positioned in end vertical nodes of the upright post straw building components, the outer end of each extension screw sleeve is in threaded connection with an extension screw rod or is fixedly connected with the extension screw rod, the extension screw rods penetrate through corresponding sleeve plate connecting holes arranged on the outer side wall of a square sleeve of the end vertical node, and the outer ends of the extension screw rods are provided with prestressed external locking nuts; and corresponding operation holes are formed in the side walls of the connecting square sleeve, the first C-shaped steel and the second C-shaped steel at the positions corresponding to the extension screw sleeves.

4. The steel structure beam and wall panel or floor connection structure of claim 2, wherein node flange plates are provided at both sides or four side walls of the outer end plate of the end cross node, the node flange plates are provided with end plate through holes, and the node fixing bolts and the node locking nuts are fixed for connection to the pillar straw building elements, or prestress is applied to the node fixing bolts by adjusting the node locking nuts.

5. The steel structure beam and wallboard or floor connection structure of claim 2, wherein the end horizontal node comprises a contact square sleeve, an inner liner plate and an outer end plate, wherein the inner liner plate is fixed inside the contact square sleeve, the outer end plate is fixed outside the connection square sleeve, the inner liner plate and the outer end plate are respectively provided with an end plate through hole corresponding in position for passing through a prestress longitudinal tie bar installed in each longitudinal through hole of the beam straw building component, a prestress inner lock nut is installed on the threaded section at both ends of the prestress longitudinal tie bar, each prestress inner lock nut is supported on the side surface of the inner liner plate, the threaded section at the end of the prestress longitudinal tie bar is located in the contact square sleeve, an extension screw sleeve is connected to the threaded section in the contact square sleeve, the other end of the extension screw sleeve is connected with an extension screw rod or a fixedly connected extension screw rod, the extension screw rod passes through the square sleeve of the vertical node at the end of the column straw, and corresponding sleeve plate connecting holes are arranged on the outer side wall of the end vertical joint and penetrate out, a prestress outer locking nut is arranged at the exposed end, and each prestress outer locking nut is adjusted to enable each prestress longitudinal tie bar and each extension screw to have prestress.

6. A steel structure column and wallboard connecting structure is characterized in that steel structure column systems are connected to two sides of a wallboard system, after multiple layers of straw building components are sequentially stacked up and down, through increasing a prestressed transverse tie bar in a vertical penetrating mode, the straw building components on each layer are connected in series by the prestressed transverse tie bar, and after the transverse prestress is added to each prestressed transverse tie bar, the straw building components on each layer are extruded together to form a wallboard; each layer of straw building component comprises a first buckled C-shaped steel, a second buckled C-shaped steel and straw wood chip compacts sleeved on the inner sides of the first buckled C-shaped steel and the second buckled C-shaped steel in a matching mode, the first buckled C-shaped steel and the second buckled C-shaped steel form a columnar inner cavity, the columnar straw wood chip compacts are sleeved in the inner cavity in a matching mode, two side edges of the first buckled C-shaped steel and the second buckled C-shaped steel and the straw wood chip compacts are fixed together through section steel rivets to form a combination body, end transverse nodes are sleeved at two ends of the combination body, or outer end plates are; the method comprises the following steps that longitudinal through holes are formed in a straw sawdust compacted body along the length direction, transverse through holes are formed in the width direction, prestressed longitudinal tie bars penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through corresponding end plate through holes in end transverse nodes or outer end plates respectively, two ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress; the prestressed transverse lacing wires penetrate through transverse through holes of the straw wood chip compacted body and then respectively penetrate through corresponding profile steel through holes on the two sides of the C-shaped steel and the C-shaped steel of each layer of straw building component, two ends of the prestressed transverse lacing wires are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; and end transverse nodes or outer end plates are sleeved at the end parts of the straw building components of each layer of the wallboard system, and end vertical nodes are sleeved at the end parts of the straw building components of the upright posts, and the end transverse nodes or the outer end plates are fixedly connected with the end vertical nodes.

7. The steel structure column and wall plate connecting structure as claimed in claim 6, wherein the end transverse node or the outer end plate and the end vertical node of each layer of straw building member are fixedly connected in the following manner: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

8. The steel structure column and wall panel connection structure of claim 6, wherein end transverse nodes are respectively sleeved on the end parts of the wall panels at the butt joint positions of the wall panels and the vertical column straw building members at the two ends of the wall panels, the end part vertical node is sleeved on the end part of the upright post straw building component, the end part horizontal node and the end part vertical node are fixedly connected, the wall plate and the upright post straw building component both comprise C-shaped steel I and C-shaped steel II which are buckled with each other to form a columnar inner cavity, the columnar straw wood chip compacted bodies are matched and sleeved in the inner cavity, the two side edges of the C-shaped steel I and the C-shaped steel II and the straw wood chip compacted bodies are fixed together through the profile steel rivet to form a combined body, the longitudinal through holes are formed in the straw sawdust compacted body along the length direction, the transverse through holes are formed in the width direction, and the prestress longitudinal tie bars penetrate through the longitudinal through holes of the straw sawdust compacted body and then penetrate through corresponding end plate through holes in end transverse joints or outer end plates respectively; the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

9. The steel structure column and wallboard connecting structure of claim 6, further comprising a beam straw building member and a column straw building member, wherein the butt joint position of the beam straw building member and the column straw building member is respectively sleeved with an end transverse node at the end of the beam straw building member, an end vertical node is sleeved at the end of the column straw building member, and the end transverse node and the end vertical node are fixedly connected, the beam straw building member and the column straw building member both comprise a cylindrical inner cavity formed by buckling C-shaped steel I and C-shaped steel II, the inner cavity is matched and sleeved with a cylindrical straw sawdust pressing body, two side edges of the C-shaped steel I and the C-shaped steel II are fixed together with the straw sawdust pressing body through a steel rivet to form a combined body, the straw sawdust pressing body is provided with longitudinal through holes along the length direction and transverse through holes along the width direction, and the prestress longitudinal tie bar penetrates through the longitudinal through holes of the straw sawdust pressing body, and respectively penetrate through corresponding end plate through holes on the end transverse node or the outer end plate; the prestressed transverse lacing wire penetrates through the transverse through holes of the straw wood chip compacted body and then respectively penetrates through the corresponding section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, the two ends of the prestressed transverse lacing wire are respectively fixed through prestressed locking nuts, and each prestressed locking nut is adjusted to enable each prestressed transverse lacing wire to have prestress; the fixed connection mode of the end transverse node and the end vertical node is as follows: the end vertical node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed on the outer side of the connection square sleeve, the contact square sleeve is sleeved on the inner sides of two ends of a first C-shaped steel and a second C-shaped steel of the upright post straw building component, the outer end plate is positioned on the outer sides of two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with the end surfaces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating; the side walls of the connecting square sleeves are uniformly provided with sleeve plate connecting holes and node rivet holes, and the profile steel rivet holes arranged on the side walls of the C-shaped steel I and the C-shaped steel II of the upright post straw building component correspond to the node rivet holes on the connecting square sleeves and are fixed together through the node rivets; after the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through the corresponding sleeve plate connecting holes formed in the two opposite side walls of the square sleeve, the two ends of the prestressed longitudinal tie bars at the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking nuts respectively, and each prestressed locking nut is adjusted to enable each prestressed longitudinal tie bar to have prestress.

10. The steel structure column and wallboard connecting structure of claim 8, wherein the end transverse node comprises a contact square sleeve and an outer end plate, wherein the outer end plate is fixed outside the connection square sleeve, the contact square sleeve is sleeved inside two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is positioned outside two ends of the first C-shaped steel and the second C-shaped steel, the outer end plate is butted with end faces of the first C-shaped steel and the second C-shaped steel, and an end plate through hole is formed in the outer end plate and used for penetrating and installing the prestress longitudinal tie bar; the prestressed internal locking nuts are respectively arranged on the thread sections at the two ends of the prestressed longitudinal tie bar of the beam straw building component and supported on the outer end plate or the inner wall of the vertical joint at the end part of the upright post straw building component or a gasket; meanwhile, the screw thread sections at two ends of the longitudinal prestressed tendons are connected with extension screw sleeves, the extension screw sleeves are positioned in end vertical nodes of the upright post straw building components, the outer end of each extension screw sleeve is in threaded connection with an extension screw rod or is fixedly connected with the extension screw rod, the extension screw rods penetrate through corresponding sleeve plate connecting holes arranged on the outer side wall of a square sleeve of the end vertical node, and the outer ends of the extension screw rods are provided with prestressed external locking nuts; and corresponding operation holes are formed in the side walls of the connecting square sleeve, the first C-shaped steel and the second C-shaped steel at the positions corresponding to the extension screw sleeves.