CN212295023U - Passive steel structure straw assembly building system - Google Patents

Abstract

The utility model belongs to steel construction building house building component field, concretely relates to passive form steel construction straw assembly building system. Including prestressing force mechanism straw stand or crossbeam, prestressing force mechanism straw wallboard or floor, each node of stand and crossbeam and stand or crossbeam and each connection structure of prestressing force mechanism straw wallboard, monomer prestressing force mechanism straw stand or crossbeam A1 constitute the column inner chamber including the C shaped steel one and the C shaped steel two of cross-under, it indulges the perforation to be provided with along length direction at straw saw-dust tamp body, be provided with the cross bore hole along width direction, the prestressing force is indulged the lacing wire and is run through its both ends and fix through the prestressing force latch fitting respectively behind the indulging perforation of straw saw-dust tamp body, adjust each prestressing force latch fitting and make each prestressing force indulge the lacing wire and have the prestressing force. The utility model discloses a structure of prestressing force connecting piece and tensioning member can show the consumptive material cost and the man-hour cost that reduces each and construct, and the joining process is simple and easy and high-efficient moreover.

Description

Passive steel structure straw assembly building system

Technical Field

The utility model belongs to the technical field of steel construction building house building component, concretely relates to passive form steel construction straw assembly building system.

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 utility model people, it is found that the combined building member of the channel-shaped steel and the compressed core body of the wrapped straw adopted in the patent document still has the problem of not strong enough bearing strength when being used as a beam or a column, especially when the combined building member can not be directly applied to a large-span beam member system, the stand column design is required to be added according to the acceptance strength, or the design of auxiliary members is required 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 utility model discloses the people further improves this technique through on above technical scheme basis to the realization is applied to in the building system with cold-formed thin wall shaped steel structure and straw saw-dust compacted body effectively combining.

SUMMERY OF THE UTILITY MODEL

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-bending thin-walled steel structure with the straw compression core body, the utility model provides a passive steel structure straw assembly building system, which makes full use of the strong compression resistance of the straw wood chip compact body and combines the tensile resistance and the fixing action of C-shaped steel with bilateral symmetry, 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 utility model provides a scheme that its technical problem adopted is: a passive steel structure straw assembly building system comprises prestressed steel structure straw upright posts or beams, prestressed steel structure straw wall boards or floor slabs, all nodes of the upright posts and the beams and all connecting structures of the upright posts or the beams and the prestressed steel structure straw wall boards, a single prestressed steel structure straw upright posts or beams A1 comprises C-shaped steel I and C-shaped steel II which are buckled to form a columnar inner cavity, columnar straw sawdust compacts are matched and sleeved in the inner cavity, two side edges of the C-shaped steel I and the C-shaped steel II and the straw sawdust compacts are fixed together through section steel rivets to form a beam straw building component or upright post straw building component assembly, longitudinal through holes are formed in the straw sawdust compacts along the length direction, transverse through holes are formed in the width direction, and two ends of each prestressed longitudinal tie bar are fixed through prestressed locking pieces respectively after penetrating through the longitudinal through holes of the straw sawdust compacts, adjusting each prestress locking piece to enable each prestress longitudinal tie bar to have prestress; the prestressed transverse lacing wires penetrate through transverse through holes of the straw sawdust compacted body and then penetrate through corresponding profile steel through holes on the two sides of the C-shaped steel I and the C-shaped steel respectively, two ends of the prestressed transverse lacing wires are fixed through prestressed locking pieces respectively, and each prestressed locking piece is adjusted to enable each prestressed transverse lacing wire to have prestress.

The nodes include a right angle node B21, a T-shaped node B22, a three-way vertical node-B31; a second three-dimensional vertical node B32, a two-dimensional cross node B41, a cross node B42, a three-dimensional cross node B43, a wall-to-column abutting structure C1, a wall-to-beam abutting structure C2, a wallboard structure D1 and a wallboard containing window structure D2.

The right-angle node B21 and the T-shaped node B22 are respectively arranged at the butt joint position of a beam straw building component and an upright post straw building component, an end transverse node is sleeved at the end part of the beam straw building component, an end vertical node is sleeved at the end part of the upright post straw building component, the end transverse node and the end vertical node are vertically and fixedly connected, the prestressed longitudinal tie bars led out from the two ends of the beam straw building component penetrate through corresponding connecting holes arranged on the two opposite side walls of the vertical node, the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each prestressed longitudinal tie bar to have prestress.

The first three-way vertical node B31 and the second three-way vertical node B32 respectively comprise a cross beam straw building component, a longitudinal beam straw building component and an upright post straw building component which are perpendicular to each other, the cross beam straw building component and the longitudinal beam straw building component are sleeved with end transverse nodes at the mutually perpendicular butt joint positions, the end part of the upright post straw building component is sleeved with end vertical nodes, the three nodes are perpendicular to each other and fixedly connected, longitudinal prestressed tendons led out from the ends of the cross beam straw building component and the longitudinal beam straw building component respectively penetrate through corresponding connecting holes formed in two opposite side walls of the vertical nodes, the outer ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

The two-dimensional cross node B41, the cross vertical node B42 and the three-dimensional cross node B43 respectively comprise two cross beam straw building components or longitudinal beam straw building components which are respectively and vertically fixed on two sides of a vertical column straw building component, the two cross beam straw building components or the longitudinal beam straw building components are on the same straight line, the longitudinal prestressed lacing wires in the two cross beam straw building components or the longitudinal beam straw building components are connected together through threads, and prestress is applied to the connected combined longitudinal prestressed lacing wires.

The wall and upright post butt joint structure C1 is characterized in that each prestress transverse tie bar on the left side and the right side of the wallboard structure and each corresponding prestress transverse tie bar of the upright post are fixed through a locking piece and apply prestress on one side or the middle part of the upright post; the wall and beam butt joint structure C2 is formed by fixing each longitudinal prestressed tendon and each corresponding transverse prestressed tendon of the transverse beam on the upper and lower sides of the wallboard structure through a locking piece and applying prestress on one side or the middle part of the transverse beam.

The prestressed structure straw wallboard structure D1 is formed by sequentially stacking multiple layers of straw building components from top to bottom, adding prestressed transverse tie bars through vertical penetration, enabling the straw building components on each layer to be connected in series by the prestressed transverse tie bars, and extruding the multiple layers of straw building components together to form a wallboard after adding transverse prestress to the prestressed transverse tie bars; each layer of straw building component or at least the uppermost layer and the lowermost layer of component comprises a C-shaped steel I and a C-shaped steel II which are buckled with each other and straw wood chip compacted bodies of which the inner sides are matched and sleeved with each other, two side edges of the C-shaped steel I and the C-shaped steel II are fixed with the straw wood chip compacted bodies through section steel rivets to form a combined body, two ends of the combined body are sleeved with end transverse nodes, or two ends of a single upright post or a single cross beam are sleeved with outer end plates; 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, the two ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces respectively, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

The structure is characterized by further comprising a window-containing wallboard structure D2, wherein on the basis of the prestressed steel structure straw wallboard structure, C-shaped steel is sleeved on the edge of the straw building member at the window position, corresponding prestressed transverse connections led out from the C-shaped steel are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each prestressed transverse tie bar to have prestress.

Each node further comprises a first three-upright-column vertical node B51 and a second three-upright-column vertical node B52, the two nodes comprise a main upright column and an auxiliary upright column, the main upright column and the auxiliary upright column are arranged in parallel and share a uniform prestressed transverse lacing wire, two ends of the cross beam are supported at the upper end of the auxiliary upright column and share a uniform prestressed vertical lacing wire with the auxiliary upright column, and each lacing wire applies prestress respectively.

The wall and double-column butt-joint structure C3 comprises more than two columns which are parallel, each column is fixedly connected and applies transverse prestress through a common transverse prestressed tendon, each transverse prestressed tendon at the left side and the right side of the wallboard structure which is adjacent to and in butt joint with the more than two columns is respectively fixed with each corresponding transverse prestressed tendon of the more than two columns through a locking piece, and the locking piece is positioned at one side or the middle part of any column and applies prestress.

Also includes double combined upright post or beam A2: two groups of single prestressed steel structure straw upright columns or beams A1 are juxtaposed, and adjacent single prestressed steel structure straw upright columns or beams A1 share a uniform prestressed transverse lacing wire or a prestressed longitudinal lacing wire, namely the shared prestressed transverse lacing wire applies transverse prestress or longitudinal prestress in the two groups of single prestressed steel structure straw upright columns or beams A1 at the same time.

Still include three combination posts: the prestressed transverse tie bar is formed by combining three groups of single prestressed steel structure straw upright columns or beams A1, and at least two single upright columns or beams share a uniform prestressed transverse tie bar, namely, the prestressed transverse tie bar applies transverse prestress and longitudinal prestress in the adjacent single upright columns or beams simultaneously.

The utility model also comprises a three-combined upright post A31: three groups of single columns or beams are arranged in parallel to form an L shape, and at least two single columns or beams share a uniform transverse prestressed lacing wire, namely the transverse prestressed lacing wire applies transverse prestress and longitudinal prestress in the adjacent single columns or beams simultaneously.

The three-combined upright post II A32 is also included; three groups of single columns or cross beams are arranged in parallel to form a triangle, and at least two single columns or cross beams share a uniform transverse prestressed lacing wire, namely the transverse prestressed lacing wire applies transverse prestress in the adjacent single columns or cross beams.

Also comprises four combined upright posts A4; four groups of single columns or beams are arranged in parallel to form a quadrangular prism shape and share a uniform transverse prestressed lacing wire, namely the transverse prestressed lacing wire applies transverse prestress in the adjacent single columns or beams.

Also comprises five combined upright posts A5; five groups of single columns or cross beams are arranged in parallel to form a cross shape and share a uniform transverse prestressed lacing wire, namely, the transverse prestressed lacing wire applies transverse prestress and longitudinal prestress in each single column or cross beam which is adjacent in parallel.

Also included is a beam or column straight line node B1: the end parts of the two single columns or the end parts of the two single beams are butted, the prestressed longitudinal tie bars are connected together through threads, and prestress is applied to the connected combined prestressed longitudinal tie bars.

Wherein, crossbeam straw building element and stand straw building element's butt joint position department, the mode that tip horizontal node and tip vertical node fixed connection are: 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 the prestressed steel structure straw wallboard structure, end transverse nodes are sleeved at two ends of a combination formed by C-shaped steel I, C-shaped steel II and straw sawdust compacted bodies, or outer end plates are sleeved at two ends of a single upright post or a single cross beam; 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, the two ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces respectively, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

The straw sawdust compacting body is internally provided with a tendon hole end used 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 pulling bolt in a threaded mode, the prestressed pulling 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 pulling bolt is located outside the end plate through hole.

In addition, the adopted locking part comprises a prestress damping connector which is positioned at the transverse connection or vertical connection part of two adjacent straw building components and comprises a sleeve, a front connecting seat is arranged at the inner end of the sleeve, a rear connecting seat is arranged at the outer end of the sleeve, the thread section of a prestress longitudinal tie bar led out from two ends of each straw building component is connected into a thread hole in the center of the front connecting seat, a through hole is arranged in the center of the rear connecting seat, a screwing push-pull rod is sleeved in the through hole, a sliding block is fixed at the inner end of the screwing push-pull rod and is sleeved in the sleeve in a matching way, a sliding groove is arranged on the inner side of the sleeve, a convex edge is arranged on one side or two sides of the sliding block, the convex edge and the sliding groove are matched and sleeved with a stroke which can only axially slide but cannot rotate, a spring is sleeved in a spring cavity formed between the sliding block, and adjusting each adjusting knob to enable each pre-stressed longitudinal tie bar to have pre-stress.

The utility model has the advantages that: through the utility model discloses each prestressing force combination component can realize that each independent prestressing force component is nimble to be docked and ensure that the assembly after the butt joint also can apply prestressing force, and each building element combination forms the passive form steel construction straw assembly building system of multiple shape. The utility model discloses make full use of straw saw-dust compact's powerful compressive property, combine the tensile property and the fixed action of the C shaped steel of bilateral symmetry, and through indulge the lacing wire to the prestressing force and exert the prestressing force back of moderate degree, combine the compressive property of straw saw-dust compact and the tensile property of the C shaped steel of bilateral symmetry, make building element have sufficient tractive prestressing force, thereby can show the support performance who improves this building element, especially when being applied to the roof beam system with this building element, the dynamics of shearing that constructs the roof beam for current only filled type large-span steel is showing and is improving.

The utility model discloses add the horizontal lacing wire of prestressing force simultaneously at the building element of each butt joint for transversely compress tightly and provide prestressing force along transversely with the C shaped steel of bilateral symmetry and straw saw-dust compact, be used for resisting along fore-and-aft longitudinal prestressing force, thereby make longitudinal prestressing force and horizontal prestressing force combine in order to improve building element's intensity.

The utility model discloses the connection building element that tip through connection corresponds can be followed to the vertical prestressing tendons of the tip that is arranged in each building element of butt joint, and outside the horizontal prestressing tendons in its middle part can improve each building element self intensity and horizontal prestressing force, can also be as an organic whole with adjacent each layer building element connection and applys horizontal prestressing force simultaneously, utilizes vertical prestressing force and horizontal prestressing force to combine to realize each building element prestressing force relation of connection.

The utility model discloses well whole coefficient of heat conductivity of each building element is little. The utility model discloses a straw saw-dust compact is that straw compact or saw-dust compact or straw and saw-dust mix compact, has lower coefficient of heat conductivity. 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 utility model discloses an assembled, procedure in the frame, easy transportation, field assembly. The utility model discloses the form standard and the singleness of realization, the equipment is connected very easily, can show improvement efficiency of construction, need not the cutting welding moreover and punches, reduces work load and to environmental pollution. The utility model discloses each assembly pattern picture is understood easily, and the position of prestressing force bolt and connection structure spare is confirmed according to the BIM structure picture to the taut and corresponding tip retaining member of each prestressing force. Because the utility model discloses adopted the prestressing force structure in building element respectively to the prestressing force is as the important part of building element's load, and the material characteristic that can be used for the compression of support to its inside to carry requires not highly, can be with the straw or the compression moulding such as saw-dust of depositing multiple pattern. The utility model discloses a prestressing force connecting piece and tensioning member's structure has replaced the relation of connection that adopts the node box among the current patent, can show the consumptive material cost and the man-hour cost that reduce each and construct, and the connection is simple and easy and high-efficient moreover. The utility model discloses a preferred form in passive form house. 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 diagram of the steel structure straw assembly building system model of the utility model.

Fig. 2 is a schematic structural view of the single column of fig. 1.

Fig. 3 is a schematic perspective view of fig. 2.

Fig. 4 is one of the schematic structural diagrams of the section a-a in fig. 3.

Fig. 5 is a schematic view of the cross-sectional structure B-B in fig. 3.

FIG. 6 is a second schematic view of the cross-sectional structure A-A in FIG. 3.

Fig. 7 is a schematic structural diagram of the double-combined prestressed steel structure straw upright column or beam in fig. 1.

Fig. 8 is a schematic perspective view of fig. 7.

Fig. 9 is a schematic view of the cross-sectional structure C-C of fig. 8.

Fig. 10 is an enlarged view of the portion D in fig. 9.

Fig. 11-14 are schematic structural diagrams of different nodes of the present invention.

Fig. 15-29 are schematic views of different linking structures of the beam and the column of the present invention.

Figure 30 is a schematic view of the connection structure of the beam or column and the wall panel of the present invention.

Fig. 31 is an enlarged schematic view of the portion G in fig. 30.

Fig. 32 is an enlarged view of part H of fig. 31.

Fig. 33 is a second enlarged schematic view of the portion H in fig. 31.

Fig. 34 and 35 are schematic structural views of two forms of the steel-structured straw wall panel.

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, 209 is a double-C straight flanging section steel, 210 is a straight flanging, 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 thread section, 402 is a tie bar hole, 403 is an end nut groove, 5 is a prestress transverse tie bar, 7 is an extension screw sleeve, 701 is an extension screw, 801 is a connecting nut, 802 is a forward prestress tie bolt, 802a reverse prestress tie bolt, 804 is a prestress lock nut, 8a is a prestressed inner lock nut, 8b is a prestressed outer lock nut, 805 is a reverse prestressed tensioning lock nut, 11 is a base plate, 13 is a plane connecting plate, 14 is a right-angle connecting plate, and 16 is a fixing screw nut.

A1: prestressed steel structure straw upright columns or beams; a2: double-combined prestressed steel structure straw upright columns or beams; a31: a first three-combined prestressed steel structure straw upright column; a32: a third combined prestressed steel structure straw upright post; a4: a four-combination upright post; a5: five groups of prestressed steel structure straw upright columns; b1: prestressed steel structure straw upright column or beam node; b21: prestressed steel structure straw upright post or crossbeam right-angle node; b22: prestressed steel structure straw upright column or crossbeam T-shaped node; b31: a three-direction vertical node I; b32: a third vertical node B; b41: a two-dimensional cross node; b42: a cross-shaped vertical node; b43: a three-dimensional cross node; b51: a vertical node I of the three upright posts; b52: a vertical node II of the three upright posts; c1: the wall and the upright post are in butt joint; c2: a wall and beam butt joint structure; c3: the wall and the double-upright-column are in butt joint structure; d1: a prestressed steel structure straw wallboard structure; d2: contain window prestressing force steel construction straw wallboard structure.

Detailed Description

The present invention will be further explained with reference to the drawings and examples.

Example 1: the passive steel structure straw assembly building system adopts the combined cold-formed thin-wall section steel and straw wood chip compacted body and applies prestress to form each reinforced building component, such as a building system model shown in figure 1, each building component at least comprises a prestressed steel structure straw upright post or cross beam, a prestressed steel structure straw wallboard or floor slab, each node of the upright post and the cross beam, each connecting structure of the upright post or the cross beam and the prestressed steel structure straw wallboard, and the like, and each prestress tensioning and corresponding end locking piece determines the positions of a prestress bolt and a connecting structural part according to a BIM structure diagram.

As shown in fig. 2-5, the single prestressed steel structure straw upright column or beam a1 includes a cylindrical inner cavity formed by buckled first C-shaped steel and second C-shaped steel, and the cylindrical straw wood chip compact is sleeved in the inner cavity in a matching manner. Wherein, the edges of two sides of the C-shaped steel I and the C-shaped steel II are fixed with the straw wood chip compact by profile steel rivets to form a beam straw building component or a column straw building component assembly. And longitudinal through holes are formed in the straw sawdust compacted body along the length direction, the two ends of the prestressed longitudinal tie bars are fixed through prestressed locking pieces after the prestressed longitudinal tie bars penetrate through the longitudinal through holes of the straw sawdust compacted body, and each prestressed locking piece is adjusted to enable each prestressed longitudinal tie bar to have prestress. And transverse through holes are formed in the width direction, the prestressed transverse tie bars penetrate through the transverse through holes of the straw wood chip compacted body and then respectively penetrate through the corresponding profile 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 tie bars are respectively fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each prestressed transverse tie bar longitudinal tie bar to have prestress.

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 utility model discloses a straw saw-dust compact is that straw compact or saw-dust compact or straw and saw-dust mix compact, has lower coefficient of heat conductivity. 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.

The double combination post or beam a2 as shown in fig. 7-9: two groups of single prestressed steel structure straw upright columns or beams A1 are juxtaposed, and adjacent single prestressed steel structure straw upright columns or beams A1 share a uniform prestressed transverse lacing wire or a prestressed longitudinal lacing wire, namely the shared prestressed transverse lacing wire applies transverse prestress or longitudinal prestress in the two groups of single prestressed steel structure straw upright columns or beams A1 at the same time.

Three-combination post one a31 as shown in fig. 11: three groups of single columns or beams are arranged in parallel to form an L shape, and at least two single columns or beams share a uniform transverse prestressed lacing wire, namely the transverse prestressed lacing wire applies transverse prestress and longitudinal prestress in the adjacent single columns or beams simultaneously.

Three-combination post two a32 as shown in fig. 12; three groups of single columns or cross beams are arranged in parallel to form a triangle, and at least two single columns or cross beams share a uniform transverse prestressed lacing wire, namely the transverse prestressed lacing wire applies transverse prestress in the adjacent single columns or cross beams.

Four-part pillar a4 as shown in fig. 13; four groups of single columns or beams are arranged in parallel to form a quadrangular prism shape and share a uniform transverse prestressed lacing wire, namely the transverse prestressed lacing wire applies transverse prestress in the adjacent single columns or beams.

As shown in fig. 14, five combination posts a 5; five groups of single columns or cross beams are arranged in parallel to form a cross shape and share a uniform transverse prestressed lacing wire, namely, the transverse prestressed lacing wire applies transverse prestress and longitudinal prestress in each single column or cross beam which is adjacent in parallel.

The locking member for installation may be in the form of a locking nut installed at each of both ends of the prestressed tension member as shown in fig. 2 to 3, or may be in the form of a prestressed locking member structure as shown in fig. 10. After the prestressed longitudinal tie bar 4 or the prestressed transverse tie bar 5 is matched and penetrates through a 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 803 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. Where pre-stress is applied, the pre-stressed pull stud 802 may be a fixed load twist shear bolt.

The nodes of the building system are shown in fig. 15-29.

Fig. 15 is a beam or column straight line node B1: the end parts of the two beam straw building components (or single column straw building components) are butted, the prestress longitudinal tie bars are connected together through threads, and prestress is applied to the connected combined prestress longitudinal tie bars. Specifically, the prestressed locking structure shown in fig. 10 is adopted at each beam end, and after the adjacent beams are butted, the prestressed longitudinal tie bars are fixedly connected together through the end nut grooves 403, and are prestressed by rotation.

Fig. 16 is a right angle node B21: the end transverse nodes are sleeved on the end parts of the transverse beam straw building components respectively at the butt joint positions of the transverse beam straw building components and the upright post straw building components, the end vertical nodes are sleeved on the end parts of the upright post straw building components, the end transverse nodes and the end vertical nodes are vertically and fixedly connected, the longitudinal prestressed tendons led out from the two ends of the transverse beam straw building components penetrate through the corresponding connecting holes formed in the two opposite side walls of the vertical nodes, the outer ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress. The design aims to facilitate the prestressed longitudinal tie bar between a beam end and the upright column, namely, the tension of the original prestressed longitudinal tie bar is transmitted to the outer side surface of the upright column through the extension screw sleeve and the extension screw rod under the condition that the tension of the original prestressed longitudinal tie bar of the beam is kept unchanged. Or by adopting the prestressed locking structure shown in fig. 10, after the adjacent beams are butted, the prestressed longitudinal tie bars are respectively and fixedly connected together through the end nut grooves 403, and prestressed is applied by rotation.

T-type node B22 as shown in fig. 18 and 19: the end transverse nodes are respectively sleeved at the end parts of the beam straw building components at the butt joint positions of the beam straw building components and the upright post straw building components, 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 vertically and fixedly connected, the end transverse nodes comprise a contact square sleeve, an inner base plate and an outer end plate, the inner base plate is fixed at the inner side of the contact square sleeve, the outer end plate is fixed at the outer side of the connection square sleeve, the inner base plate and the outer end plate are respectively provided with end plate through holes corresponding in position and are used for penetrating through prestressed longitudinal pull bars arranged in each longitudinal through hole of the beam straw building components, prestressed inner lock nuts are arranged on thread sections at two ends of each prestressed longitudinal pull bar, each prestressed inner lock nut is supported on the side surface of the inner base plate, the thread section at the end part of each prestressed longitudinal pull bar is positioned in the contact square sleeve, the other end of the extension screw sleeve is in threaded connection with an extension screw rod or is fixedly connected with the extension screw rod, the extension screw rod penetrates through the square sleeve of the end vertical node of the upright post straw building component and penetrates out of a corresponding sleeve plate connecting hole arranged on the outer side wall of the end vertical node, 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 the extension screw rod to have prestress.

The three vertical node B31 and the three vertical node B32 approximations as shown in fig. 20 and 21 apply to the middle and end of the building system, respectively: the device comprises a cross beam straw building component, a longitudinal beam straw building component and a stand column straw building component which are perpendicular to each other, wherein end transverse nodes are sleeved at the joint positions of the cross beam straw building component and the longitudinal beam straw building component which are perpendicular to each other, end vertical nodes are sleeved at the end parts of the stand column straw building component and are perpendicular to each other and fixedly connected with each other, longitudinal prestressed tendons led out from the end parts of the cross beam straw building component and the longitudinal beam straw building component respectively penetrate through corresponding connecting holes formed in two opposite side walls of each vertical node, the outer ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

The end transverse nodes are sleeved on the end parts of the transverse beam straw building components respectively at the butt joint positions of the transverse beam straw building components and the upright post straw building components, the end vertical nodes are sleeved on the end parts of the upright post straw building components, the end transverse nodes and the end vertical nodes are vertically and fixedly connected, the longitudinal prestressed tendons led out from the two ends of the transverse beam straw building components penetrate through the corresponding connecting holes formed in the two opposite side walls of the vertical nodes, the outer ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

Meanwhile, a damping damper is arranged on a threaded section at the end part of a prestress longitudinal tie bar of the first straw building component at the butt joint position of the beam straw building component and the upright post straw building component. When the shock absorbing damper as shown in figures 22 and 23 including the sleeve is applied to the coupling structure of figure 21, the inner end of the sleeve is provided with a front connecting seat, the outer end of the sleeve is provided with a rear connecting seat, the thread section of the prestress longitudinal lacing bar led out from two ends of the straw building component is connected in the thread hole at the center of the front connecting seat, a through hole is arranged at the center of the rear connecting seat, a screwing push-pull rod is sleeved in the through hole, a sliding block is fixed at the inner end of the screwing push-pull rod and is sleeved in the sleeve in a matching way, a sliding groove is arranged at the inner side of the sleeve, one side or two sides of the sliding block are provided with convex edges, the convex edges and the sliding grooves are matched and sleeved in a way that the stroke can only axially slide but can not rotate, meanwhile, a spring is sleeved in a spring cavity formed between the sliding block and the rear connecting seat, the screwing push-pull rod penetrates through the outer side of the end vertical node and is fixedly provided with adjusting knobs, and each adjusting knob is adjusted to enable each prestressed longitudinal tie bar to have prestress.

The structure of the two-dimensional cross node B41, the cross node B42, and the three-dimensional cross node B43 are similar, and two-dimensional cross nodes B41 constitute a three-dimensional cross node B43, as shown in fig. 24. Each node comprises two transverse beam straw building components or longitudinal beam straw building components which are respectively and vertically fixed on two sides of the vertical column straw building component, the two transverse beam straw building components or the longitudinal beam straw building components are on the same straight line, the prestressed longitudinal tie bars in the two transverse beam straw building components or the longitudinal beam straw building components are connected together through threads, and prestress is applied to the connected combined prestressed longitudinal tie bars. Fig. 25 and 26 show two embodiments of the section F-F in fig. 24, respectively, and fig. 25 shows an embodiment using an extension nut, similar to that of fig. 17, and not described in detail. Fig. 26 shows an embodiment in which a nut groove is used and a nut is installed, similar to fig. 15, and will not be described in detail.

Fig. 27-29 illustrate a composite node, where fig. 27 is a three-post vertical node B51, fig. 28 is a three-post vertical node B52, and fig. 29 is a five-combination vertical node. The common characteristics are that the device comprises a main upright post and an auxiliary upright post which are arranged together in parallel and share a uniform prestressed transverse lacing wire, two ends of a cross beam are supported at the upper end of the auxiliary upright post and share a uniform prestressed vertical lacing wire with the auxiliary upright post, and each lacing wire applies prestress respectively.

As shown in fig. 34, a prestressed structure straw wallboard structure D1 is formed by sequentially stacking multiple layers of straw building members from top to bottom, adding prestressed transverse tie bars in a vertical penetration manner, so that the straw building members of each layer are connected in series by the prestressed transverse tie bars, and extruding the multiple layers of straw building members together to form a wallboard after adding transverse prestress to the prestressed transverse tie bars; each layer of straw building component or at least the uppermost layer and the lowermost layer of component comprises a C-shaped steel I and a C-shaped steel II which are buckled with each other and straw wood chip compacted bodies of which the inner sides are matched and sleeved with each other, two side edges of the C-shaped steel I and the C-shaped steel II are fixed with the straw wood chip compacted bodies through section steel rivets to form a combined body, two ends of the combined body are sleeved with end transverse nodes, or two ends of a single upright post or a single cross beam are sleeved with outer end plates; 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, the two ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces respectively, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

The wallboard structure is through to multilayer superimposed straw building element vertical run through increase prestressing force horizontal lacing wire (the direction is vertical), makes each layer straw building element concatenate by prestressing force horizontal lacing wire to make multilayer straw building element extrude together and form the wallboard after increasing horizontal prestressing force to each prestressing force horizontal lacing wire.

As shown in fig. 35, a wall structure D2 with a window is based on a prestressed straw wallboard structure, a C-shaped steel is sleeved on the edge of a straw building member at a window position, a corresponding prestressed transverse connection led out from the C-shaped steel is fixed by prestressed locking pieces, and each prestressed locking piece is adjusted to enable each prestressed transverse tie bar to have prestress.

In each node, the prestressed longitudinal tie bars 4 which are added at first can provide prestressed tension, and form repulsion with the C-shaped steel and straw sawdust compacted bodies 203 on two sides, namely, reaction force is formed between the tension of the prestressed longitudinal tie bars 4 and the C-shaped steel and straw sawdust compacted bodies 203 on two 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.

Wall panel to column interface structure C1 as shown in fig. 30-33: the prestressed transverse tie bars on the left and right sides of the wall plate structure and the corresponding prestressed transverse tie bars of the upright posts are fixed by the locking pieces and prestress is applied to one side or the middle part of the upright posts. Wall-to-beam interface C2: the longitudinal prestressed reinforcing bars on the upper and lower sides of the wall plate structure and the transverse prestressed reinforcing bars on the transverse beam are fixed by locking parts and prestressed. In addition, a wall and double-column butt joint structure C3 can be provided: the wall panel structure comprises more than two parallel upright posts, wherein each upright post is fixedly connected with and applies transverse prestress through a common transverse prestressed tendon, each transverse prestressed tendon at the left side and the right side of the wall panel structure adjacent to and butted with the two or more upright posts is respectively fixed with each corresponding transverse prestressed tendon of the two or more upright posts through a locking piece, and the locking piece is positioned at one side or the middle part of any upright post and applies prestress.

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 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.

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.

Example 2: on the basis of embodiment 1, the butt joint position of the beam straw building component and the upright post straw building component has the following fixed connection mode of the end transverse node and the end vertical node: 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: in the prestressed steel structure straw wall structure based on embodiment 1, end transverse nodes are sleeved at two ends of a combination formed by a first C-shaped steel, a second C-shaped steel and straw sawdust compacted bodies, or outer end plates are sleeved at two ends of a single upright post or a cross beam. 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, the two ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces respectively, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

Example 3: 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, the prestress lacing bolt is connected to the rear side of the connecting nut in a threaded mode and is also sleeved in the end plate penetrating hole of the outer end plate, and the cap end of the prestress lacing bolt is located outside the end plate penetrating hole.

Example 4: on the basis of the implementation 1, further beam straw building components and upright post straw building components. One of the connection forms of the butt joint positions of the two is that end transverse nodes are sleeved at the end parts of the beam straw building components respectively, 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. 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.

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 5: on the basis of the embodiment 4, the prestressed longitudinal tie without adding 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 6: on the basis of embodiment 1 or embodiment 4, 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 7: the other steel structure column and wallboard connecting structure is based on a column, and steel structure column systems are connected to two sides of a 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 8: on the basis of the embodiment 7, 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 9: the method is characterized by further comprising a beam straw building component and a column straw building component on the basis of the embodiment 8, as shown in fig. 4-7, the butt joint positions of the beam straw building component and the column straw building component are respectively sleeved with an end transverse node at the end part of the beam straw building component, an end vertical node at the end part 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 cylindrical inner cavity formed by buckling a first C-shaped steel and a second C-shaped steel, the inner cavity is matched and sleeved with a cylindrical straw chip pressing body, two side edges of the first C-shaped steel and the second C-shaped steel and the straw chip pressing body are fixed together through a section steel rivet to form a combined body, the straw chip pressing body is provided with longitudinal through holes along the length direction, transverse through holes are arranged along the width direction, and a prestress longitudinal, 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 10: on the basis of embodiment 8, as shown in fig. 4 to 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 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, 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.

The utility model can adopt wood, bamboo, grass (including straw) artificial boards and composite materials thereof. The utility model is suitable for the component building material products of the fabricated building; low cost wall materials and wall components; photovoltaic building integration parts part. Besides being used in the field of assembly type buildings, the novel grain storage bin can also be used as a novel grain storage bin of farmers to replace the existing color tile plate combined bin, steel skeleton rectangular bin, steel mesh type drying bin and hot-dip galvanized steel plate bin.

The utility model is suitable for a building antidetonation shock-absorbing structure system and product research and development and popularization, steel construction house integrated system and technical research and development and popularization, the research and development and the popularization of skill building, green building, assembly type building technique, product. Building Information Model (BIM) related technology development and application. The development and engineering application of the existing house building earthquake-resistant reinforcement technology.

The utility model discloses the straw heat transfer coefficient is little, and good insulation material can get rid of structure cold bridge, heat bridge effect, satisfies passive house basic requirement, and is energy-concerving and environment-protective, in order to live in. The compression-resistant tensile, the shock-proof and the flame-retardant sound insulation adopt the cross connection and the staggered connection, and the overall rigidity and the stability are improved by matching the prestress system and the damping setting.

The utility model discloses a high-strength straw changes and covers silver-colored sub-assembly with stainless steel construction gold, forms the composite column of multiple combination, can be used to the little high-rise building of multilayer or be less than 80 m's private residence building. The bidirectional prestress system adapts to the stability of the whole structure, and the load resistance is improved. Each single component can reach about 10m, and basically, an interface of each three layers forms a combination body, thereby greatly expanding the application range of the structure. The single upright post or the Japanese-shaped composite upright post is below the layer height of six layers, the article-shaped composite upright post, the single upright post or the Japanese-shaped composite upright post is below the layer height of 60m, the article-shaped composite upright post, the field-shaped composite upright post (30 m replacement), the Japanese-shaped composite upright post and the single upright post are below the layer height of 80 m.

The utility model discloses the prestressing force system net of whole system is the strongest protection net of structure. The novel stainless steel structure is adopted as the metal shell, so that the working procedures of rust prevention and corrosion prevention can be avoided, and the harm of moisture decoration can be avoided. Twist shear bolting may be employed throughout. And a new application range and a new practical space are created for the thin-wall gold-silver-coated assembly structure. In addition, on the basis of the above embodiments, the edge of the C-shaped steel may further include a straight flange 210, and the straight flange is embedded into the corresponding caulking 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 (10)

1. A passive steel structure straw assembly building system is characterized by comprising prestressed steel structure straw upright columns or beams, prestressed steel structure straw wall plates or floor plates, joints of the upright columns and the beams and connecting structures of the upright columns or the beams and the prestressed steel structure straw wall plates, a single prestressed steel structure straw upright column or beam (A1) comprises a first C-shaped steel and a second C-shaped steel 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, two side edges of the first C-shaped steel and the second C-shaped steel and the straw sawdust pressing bodies are fixed together through section steel rivets to form a crossbeam straw building component or an upright column straw building component assembly, longitudinal through holes are formed in the straw sawdust pressing bodies 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 pressing bodies, and then the two ends of the prestressed steel structure straw sawdust pressing, adjusting each prestress locking piece to enable each prestress 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 section steel through holes on the two sides of the C-shaped steel I and the C-shaped steel I, two ends of the prestressed transverse lacing wires are respectively fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each prestressed transverse lacing wire longitudinal lacing wire to have prestress; the nodes include a right angle node (B21), a T-shaped node (B22), a three-way vertical node one (B31); a three-dimensional vertical node II (B32), a two-dimensional cross node (B41), a cross node (B42), a three-dimensional cross node (B43), a wall and column butt joint structure (C1), a wall and beam butt joint structure (C2), a wall surface structure (D1) and a window-containing wall structure (D2); the right-angle node (B21) and the T-shaped node (B22) are respectively sleeved with end transverse nodes at the end parts of the beam straw building components and the upright post straw building components at the butt joint positions of the beam straw building components and the upright post straw building components, the end transverse nodes are sleeved with end vertical nodes at the end parts of the upright post straw building components, the end transverse nodes are vertically and fixedly connected with the end vertical nodes, the prestressed longitudinal tie bars led out from the two ends of the beam straw building components penetrate through corresponding connecting holes formed in the two opposite side walls of the vertical nodes, the outer ends of the prestressed longitudinal tie bars are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each prestressed longitudinal tie bar to have prestress; the three-way vertical node I (B31) and the three-way vertical node II (B32) comprise a cross beam straw building component, a longitudinal beam straw building component and an upright post straw building component which are vertical to each other, end transverse nodes are sleeved at the butt joint positions of the cross beam straw building component and the longitudinal beam straw building component which are vertical to each other, end vertical nodes are sleeved at the end parts of the upright post straw building component, the three nodes are vertical to each other and fixedly connected, longitudinal prestressed tendons led out from the end parts of the cross beam straw building component and the longitudinal beam straw building component penetrate through corresponding connecting holes formed in two opposite side walls of the vertical nodes respectively, the outer ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress; the two-dimensional cross node (B41), the cross vertical node (B42) and the three-dimensional cross node (B43) comprise two cross beam straw building components or longitudinal beam straw building components which are respectively and vertically fixed at two sides of a vertical column straw building component, the two cross beam straw building components or the longitudinal beam straw building components are on the same straight line, the longitudinal prestressed lacing wires in the two cross beam straw building components or the longitudinal beam straw building components are connected together through threads, and prestress is applied to the connected combined longitudinal prestressed lacing wires; the wall and upright post butt joint structure (C1) is characterized in that each prestress transverse tie bar on the left side and the right side of the wall structure and each corresponding prestress transverse tie bar of the upright post are fixed through a locking piece and prestress is applied to one side or the middle part of the upright post; the wall and beam butt joint structure (C2) is characterized in that each longitudinal prestressed tendon and each corresponding transverse prestressed tendon of the cross beam are arranged on the upper side edge and the lower side edge of the wall structure, are fixed through a locking piece and exert prestress on one side or the middle part of the cross beam; the prestressed structure straw wall surface structure (D1) is formed by sequentially stacking a plurality of layers of straw building components from top to bottom, adding prestressed transverse tie bars through vertical penetration to enable the straw building components on each layer to be connected in series by the prestressed transverse tie bars, and extruding the plurality of layers of straw building components together to form a wall plate after adding transverse prestress to the prestressed transverse tie bars; each layer of straw building component or at least the superiors and the lowest floor component include the C shaped steel of butt joint and the straw saw-dust of the matching suit in C shaped steel two and its inboard solid of impressing, the both sides edge of C shaped steel one and C shaped steel two is in the same place through shaped steel fix with rivet between the solid of impressing of straw saw-dust, form the assembly, be provided with at the solid of impressing of straw saw-dust along length direction and indulge the perforation, be provided with the cross-perforation along width direction, the prestressing force is indulged the lacing wire and is run through behind the indulging perforation of the solid of impressing of straw saw-dust, it is fixed through the prestressing force latch fitting respectively to the both ends of the prestressing force indulge.

2. The passive steel structure straw assembly building system according to claim 1, further comprising a window-containing wall structure (D2), wherein the window-containing wall structure is characterized in that a C-shaped steel is sleeved on the edge of the straw building member at the window position on the basis of the prestressed steel structure straw wall structure, a corresponding prestressed transverse connection led out from the C-shaped steel is fixed through prestressed locking pieces, and each prestressed locking piece is adjusted to enable each prestressed transverse tie bar to have prestress.

3. The passive steel structure straw assembly building system of claim 1, wherein each node further comprises a first three-column vertical node (B51) and a second three-column vertical node (B52), the two nodes both comprise a main column and an auxiliary column, the main column and the auxiliary column are arranged in parallel and share a uniform prestressed transverse tie bar, two ends of the cross beam are supported at the upper end of the auxiliary column and share a uniform prestressed vertical tie bar with the auxiliary column, and each tie bar applies prestress respectively.

4. The passive steel structure straw assembly building system according to claim 1, wherein the wall and double column butt joint structure (C3) comprises more than two columns arranged side by side, each column is fixedly connected and transversely prestressed through a common transverse prestressed tendon, each transverse prestressed tendon at the left and right sides of the wall structure adjacent to and butt-jointed with the two or more columns is respectively fixed with each corresponding transverse prestressed tendon of the two or more columns through a locking piece, and the locking piece is positioned at one side or the middle part of any column and applies prestress.

5. The passive steel structure straw assembly building system according to claim 1, further comprising double combination columns or beams (a 2): two groups of single prestressed steel structure straw upright columns or beams (A1) are juxtaposed, and adjacent single prestressed steel structure straw upright columns or beams (A1) share a uniform prestressed transverse lacing wire or a prestressed longitudinal lacing wire, namely the shared prestressed transverse lacing wire simultaneously applies transverse prestress or longitudinal prestress in the two groups of single prestressed steel structure straw upright columns or beams (A1); still include three combination posts: the straw stalk transverse bracing structure is formed by combining three groups of single prestressed steel structure straw upright columns or beams (A1), and at least two single upright columns or beams share a uniform prestressed transverse bracing rib, namely, the prestressed transverse bracing rib applies transverse prestress and longitudinal prestress in the adjacent single upright columns or beams simultaneously.

6. The passive steel structural straw assembly building system of claim 1, further comprising a beam or column straight node (B1): the end parts of the two single columns or the end parts of the two single beams are butted, the prestressed longitudinal tie bars are connected together through threads, and prestress is applied to the connected combined prestressed longitudinal tie bars.

7. The passive steel structure straw assembly building system of claim 1, wherein at the butt joint position of the beam straw building element and the column straw building element, the end transverse joint and the end vertical joint 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 passive steel structure straw assembly building system according to claim 1, wherein in the prestressed steel structure straw wall structure, end transverse nodes are sleeved at two ends of a combination formed by the first C-shaped steel, the second C-shaped steel and straw sawdust pressing bodies, or outer end plates are sleeved at two ends of a single upright post or a single cross beam; 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, the two ends of the longitudinal prestressed tendons are fixed through prestressed locking pieces respectively, and each prestressed locking piece is adjusted to enable each longitudinal prestressed tendon to have prestress.

9. The passive steel structure straw assembly building system according to claim 1, wherein a tendon hole end for sleeving the prestressed longitudinal tendon or the prestressed transverse tendon is arranged in the straw wood chip compacting body, an end nut groove with a diameter larger than that of the tendon hole is arranged and matched with and sleeved with a connecting nut, 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 the outer end plate, and the cap end of the prestressed pull bolt is located outside the end plate through hole.

10. The passive steel structure straw assembly building system according to claim 1, wherein the locking part comprises a pre-stressed damping connector located at the transverse connection or vertical connection of two adjacent straw building components, and comprising a sleeve, a front connecting seat is arranged at the inner end of the sleeve, a rear connecting seat is arranged at the outer end of the sleeve, a threaded section of a pre-stressed longitudinal tie bar led out from two ends of each straw building component is connected in a threaded hole in the center of the front connecting seat, a through hole is arranged in the center of the rear connecting seat, a screwing push-pull rod is sleeved in the through hole, a sliding block is fixed at the inner end of the screwing push-pull rod and is sleeved in the sleeve in a matching manner, a sliding groove is arranged at the inner side of the sleeve, a convex edge is arranged at one side or two sides of the sliding block, the matching stroke of the convex edge and the sliding groove can only axially slide but can not rotate, and, the screwing push-pull rod penetrates through the outer side of the end vertical node and is fixedly provided with adjusting knobs, and each adjusting knob is adjusted to enable each pre-stressed longitudinal tie bar to have pre-stress.

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