CN113565214A - Rapid Assembly's emergent engineering is with string cable membrane steel construction building system - Google Patents
Rapid Assembly's emergent engineering is with string cable membrane steel construction building system Download PDFInfo
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- CN113565214A CN113565214A CN202111126130.6A CN202111126130A CN113565214A CN 113565214 A CN113565214 A CN 113565214A CN 202111126130 A CN202111126130 A CN 202111126130A CN 113565214 A CN113565214 A CN 113565214A
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/342—Structures covering a large free area, whether open-sided or not, e.g. hangars, halls
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/19—Three-dimensional framework structures
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/343—Structures characterised by movable, separable, or collapsible parts, e.g. for transport
- E04B1/34315—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts
- E04B1/34331—Structures characterised by movable, separable, or collapsible parts, e.g. for transport characterised by separable parts mainly constituted by three-dimensional elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04G—SCAFFOLDING; FORMS; SHUTTERING; BUILDING IMPLEMENTS OR AIDS, OR THEIR USE; HANDLING BUILDING MATERIALS ON THE SITE; REPAIRING, BREAKING-UP OR OTHER WORK ON EXISTING BUILDINGS
- E04G21/00—Preparing, conveying, or working-up building materials or building elements in situ; Other devices or measures for constructional work
- E04G21/14—Conveying or assembling building elements
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- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/18—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons
- E04B1/24—Structures comprising elongated load-supporting parts, e.g. columns, girders, skeletons the supporting parts consisting of metal
- E04B1/2403—Connection details of the elongated load-supporting parts
- E04B2001/2406—Connection nodes
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Abstract
The invention discloses a quickly-assembled tension string membrane steel structure building system for emergency engineering, which consists of a prefabricated steel truss, a prefabricated inhaul cable and prefabricated maintenance membrane cloth, wherein the prefabricated steel truss adopts a modular structure and can be quickly disassembled and quickly assembled; the prefabricated inhaul cable is connected with two ends of the truss girder; the prefabricated maintenance membrane cloth adopts an integral membrane at the ridge of the prefabricated steel truss, and a split membrane is arranged at the eave of the prefabricated steel truss; the membrane cloth is connected at the column base of the prefabricated steel truss in a quick-release and quick-assembly mode through the joint of the bottom membrane. The invention combines the characteristics of a steel truss structure, a cable structure and a membrane structure, the prestressed string structure solves the problem that a large-span structure is stressed, and the membrane structure is used for integral maintenance of a vertical face and a roof, has the performance of assembling and quick disassembling and assembling, is light in integral structure, meets the requirement of large-span emergency engineering, is prefabricated in advance for each material, is convenient to transport and hoist, does not need large-scale mechanical equipment, is reliable in connection and has high construction efficiency.
Description
Technical Field
The invention relates to the field of assembled steel structures, in particular to a quickly-assembled string cable membrane steel structure building system for emergency engineering, which can be used for outdoor emergency management and refuge.
Background
At present, steel structures in China occupy a very large proportion in building construction, and are also the mainstream direction in later construction. The development of a large-span string cable structure and a membrane structure at a rapid speed has a perfect combination in an engineering example. In recent years, the nation has vigorously advocated an assembly structure for saving resources, reducing construction pollution, improving labor productivity and quality safety level, facilitating deep integration of building industry and informatization industry, promoting industry upgrading, digesting excess capacity. Fusion of multiple technologies is required according to the current form.
At present, domestic buildings are mostly constructed by traditional construction, and the requirements of rapidness, flexibility, strong adaptability, light weight and the like required by dealing with sudden disasters cannot be met. The existing emergency tent has low strength and cannot meet the requirement of large space.
Therefore, a novel structural system which is fully prefabricated, convenient to transport, rapid to install on site, convenient to disassemble, reusable and relatively low in cost is urgently needed to meet the requirements of actual engineering, particularly emergency engineering.
Disclosure of Invention
In order to solve the problems, the invention aims to provide a quickly-assembled string cable membrane steel structure building system for emergency engineering, which combines various characteristics of an assembled steel structure, a pre-stressed string structure, a membrane structure, repeated disassembly, assembly and reuse and the like, is used for quick construction of an outdoor emergency management project, and meets the requirements of large span space and strong maneuverability.
In order to achieve the above purpose, the invention is realized as follows:
the invention firstly provides a quickly-assembled tension string membrane steel structure building system for emergency engineering, which is composed of a prefabricated steel truss, a prefabricated inhaul cable and prefabricated maintenance membrane cloth, wherein:
the prefabricated steel truss adopts a modular structure and consists of truss columns and truss girders; the column foot of the truss column is connected with the foundation bolt pre-embedded in the concrete foundation in a quick-release and quick-assembly manner; the two ends of the truss girder are quickly disassembled and assembled with the top end of the truss column;
the prefabricated inhaul cable adopts a modular structure, two ends of the inhaul cable are connected with two ends of the truss girder, and the middle part of the inhaul cable is connected with the middle part of the truss girder through a stay bar to form a single-truss prestress string-stretching truss; two adjacent trusses are connected in the longitudinal direction through a connecting beam to form a prefabricated steel truss;
the prefabricated maintenance membrane cloth adopts a modular structure: the membrane cloth is arranged at the ridge of the prefabricated steel truss and adopts an integral membrane, and the integral membrane is connected at the ridge through a top membrane node in a quick-release and quick-assembly manner; the film cloth is a split film at the eave of the prefabricated steel truss, and the split films are connected at the eave in a quick-release and quick-assembly manner through edge film nodes; the membrane cloth is arranged at the column base of the prefabricated steel truss and is connected through the joint of the bottom membrane in a quick-detachable and quick-assembling manner.
In one embodiment, the apical membrane node is: the main membrane covers the ridge of the prefabricated steel truss integrally to form a top membrane, two sides of the top membrane are connected with a single welding connection membrane respectively, one end of the single welding connection membrane is welded with the inner surface of the top membrane, and the other end of the single welding connection membrane is connected with a ridge rod piece through a binding rope.
In one embodiment, a reinforcing membrane is arranged between the inner surface of the top membrane and the ridge rod, the shape of the reinforcing membrane is consistent with that of the top membrane, and the reinforcing membrane is connected with the inner surface of the top membrane in a welding mode.
In one embodiment, the edge membrane node is: the owner membrane is in eave department components of a whole that can function independently of prefabricated steel truss is limit portion diaphragm and side diaphragm, limit portion diaphragm and side diaphragm adopt the ligature rope to be connected in the eave member outside, and limit portion diaphragm is connected diaphragm and eave member through a single welding and is connected, single welding is connected diaphragm upper end and limit portion diaphragm internal surface welding, the lower extreme is connected with the eave member through the ligature rope, the side diaphragm is connected diaphragm and eave member through a single welding and is connected, single welding is connected diaphragm upper end and is connected with the eave member through the ligature rope, lower extreme and side diaphragm internal surface welding.
In one embodiment, the eave of the prefabricated steel truss is covered with a waterproof membrane, the upper end of the waterproof membrane is welded with the outer surface of the edge membrane, and the lower end of the waterproof membrane is bonded with the outer surface of the side membrane.
In one embodiment, the truss girder is a segmented and assembled structure and at least comprises a top girder section and a left side girder section and a right side girder section, connecting flanges are reserved at the top girder section, two ends of the side girder section and the top of the truss column, and the top girder section is connected with the left side girder section and the right side girder section through the flanges, and the truss girder is connected with the truss column through the flanges.
In one embodiment, the sizes of the top diaphragm and the top beam section and the sizes of the side diaphragm and the side beam section are matched, the top diaphragm and the side diaphragm are connected at the connecting node of the top beam section and the side beam section through a membrane separation node in a quick-release and quick-assembly mode, and the connecting mode of the membrane separation node and the side membrane node is the same.
In one embodiment, the base film node is: and the side membrane is connected with the connecting beam at the column foot of the prefabricated steel truss through a binding rope.
In one embodiment, the column foot of the prefabricated steel truss is covered with a waterproof membrane, the upper end of the waterproof membrane is welded with the outer surface of the side membrane, and the lower end of the waterproof membrane is fixed on a foundation.
The invention relates to a construction process of a string cable membrane steel structure building system, which comprises the following steps:
firstly, constructing a concrete foundation and embedding foundation bolts;
secondly, connecting the truss column with foundation bolts to fix the truss column;
thirdly, the truss beam sections are spliced by the flanges;
(2) the left end and the right end of the truss girder are connected with truss columns on two sides through flanges;
(3) the truss girder and the truss column are connected with the armpit rod;
fourthly, cable heads at two ends of the prefabricated inhaul cable are connected with a connecting plate on the truss girder;
fifthly, (1) mounting a connecting beam between two adjacent trusses;
(2) the front two trusses at the two ends of the structure are connected by a prefabricated inhaul cable;
(3) finishing the construction of the prefabricated steel truss;
sixthly, mounting a top diaphragm:
(1) manufacturing a top diaphragm in a factory, welding a reinforcing diaphragm at the ridge on the inner surface of the top diaphragm, and welding two single welding connection diaphragms at two sides of the ridge;
(2) covering the top diaphragm at the ridge of the prefabricated steel truss, and connecting the two single-welding connecting diaphragms with a ridge rod piece by using binding ropes;
step seven, installing edge diaphragms:
(1) manufacturing edge membranes in a factory, and welding a single-welding connection membrane on the upper edge and the lower edge of the inner surface of each edge membrane;
(2) covering the edge diaphragm on the roof of the prefabricated steel truss, connecting the edge diaphragm and the top diaphragm outside the roof rod piece by using a binding rope, and connecting the single-welded connection diaphragm on the upper edge of the edge diaphragm with the roof rod piece by using the binding rope;
(3) covering a waterproof membrane on the roof of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the top membrane, and bonding the lower end of the waterproof membrane with the outer surface of the side membrane;
eighth, installing a side diaphragm:
(1) manufacturing a side diaphragm in a factory, and welding a single welding connection diaphragm on the upper edge of the inner surface of the side diaphragm;
(2) covering the side diaphragm on the side surface of the prefabricated steel truss, connecting the side diaphragm with the edge diaphragm at the outer side of the eave rod piece by adopting a binding rope, and connecting the single-welded connecting diaphragm at the upper edge of the side diaphragm with the eave rod piece by using the binding rope;
(3) covering a waterproof membrane at the eave of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the edge membrane, and bonding the lower end of the waterproof membrane with the outer surface of the side membrane;
(4) connecting the side diaphragm with the connecting beam at the column foot of the prefabricated steel truss through a binding rope;
(5) covering a waterproof membrane at the column foot of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the side membrane, and fixing the lower end of the waterproof membrane on a foundation through a self-tapping screw and angle steel;
and finishing construction.
Compared with the prior art, the invention has the beneficial effects that: the invention provides an assembled type string cable membrane steel structure, which is light in dead weight and quick in construction, solves the problem of large-span structure stress, meets the requirement of repeated quick disassembly and assembly when a membrane structure is used for integral maintenance of a vertical face and a roof, is used for outdoor temporary buildings, and is convenient to assemble, quick and efficient in construction, strong in adaptability, high in bearing capacity and light in weight. Specifically, at least the following practical effects are obtained:
(1) the prefabricated steel truss, unified modulus designs according to the standardization of module combination, and convenient prefabrication, hoist and mount, transportation can greatly improve the efficiency of construction of assembling and dismouting on-spot.
(2) The prestressed inhaul cable is prefabricated, the integral span of the building is greatly increased by applying prestress, the quality of the integral structure is greatly reduced according to the application of the inhaul cable in the structure, and the installation and the disassembly are convenient.
(3) The prefabricated maintenance membrane cloth has small self weight, high strength and good self-cleaning performance and can be used for multiple times.
(4) The whole installation does not need to be fired, and the requirements on hydroelectric facilities and machinery are low.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so that those skilled in the art can understand and read the present invention, and do not limit the conditions for implementing the present invention, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the functions and purposes of the present invention, shall fall within the scope covered by the technical contents disclosed in the present invention.
FIG. 1 is a schematic overall cross-sectional structure of one embodiment of the present invention;
FIG. 2 is a schematic perspective view of a prefabricated steel truss according to an embodiment of the present invention;
FIG. 3 is a schematic view of a connection node of a truss column and a truss beam according to one embodiment of the invention;
FIG. 4 is a schematic view of a truss column and concrete foundation connection according to one embodiment of the invention;
FIG. 5 is a schematic view of a truss girder and a prefabricated cable according to an embodiment of the present invention;
FIG. 6 is a schematic view of a stable cable connection between truss columns (beams) according to an embodiment of the present invention;
FIG. 7 is a schematic view of a apical membrane node according to an embodiment of the present invention;
FIG. 8 is a schematic view of a truss member connection according to one embodiment of the invention;
FIG. 9 is a schematic view of an edge film node according to an embodiment of the present invention;
FIG. 10 is a schematic diagram of a membrane separation node according to an embodiment of the present invention;
fig. 11 is a schematic view of a base film node according to an embodiment of the present invention;
FIG. 12 is a schematic view of the construction effect of a cast-in-place concrete foundation;
FIG. 13 is a schematic view of the construction effect of the prefabricated truss column;
FIG. 14 is a schematic view of the construction effect of the prefabricated truss girder;
FIG. 15 is a schematic view of the connection between the truss column and the truss beam;
FIG. 16 is a schematic view of the construction effect of the prefabricated steel truss and the prefabricated stay cable;
FIG. 17 is a schematic view showing the construction effect of the connecting beam and the stabilizing cable between adjacent trusses;
FIG. 18 is a schematic view of the completion effect of the construction of the prefabricated steel truss;
FIG. 19 is a schematic view of the top diaphragm construction effect;
FIG. 20 is a schematic view of the effect of edge diaphragm construction;
FIG. 21 is a schematic view of the construction effect of the side membrane;
FIG. 22 is a schematic view of the construction effect of the gable membrane.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the embodiments of the present invention are described in further detail below with reference to the embodiments and the accompanying drawings. The exemplary embodiments and descriptions of the present invention are provided to explain the present invention, but not to limit the present invention.
In the description of the present invention, it is to be understood that the terms "comprises/comprising," "consists of … …," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a product, apparatus, process, or method that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such product, apparatus, process, or method if desired. Without further limitation, an element defined by the phrases "comprising/including … …," "consisting of … …," or "comprising" does not exclude the presence of other like elements in a product, device, process, or method that comprises the element.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
It will be further understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like, refer to an orientation or positional relationship illustrated in the drawings for convenience in describing the present invention and to simplify description, and do not indicate or imply that the referenced device, component, or structure must have a particular orientation, be constructed in a particular orientation, or be operated in a particular manner, and should not be construed as limiting the present invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
The following describes the implementation of the present invention in detail with reference to preferred embodiments.
As shown in figures 1 and 2, the rapidly-assembled string cable membrane steel structure building system for the emergency engineering is composed of a prefabricated steel truss, a prefabricated inhaul cable and prefabricated maintenance membrane cloth.
The prefabricated steel truss is composed of a left truss column and a right truss column 2 and a truss beam 3 connected between the left truss column and the right truss column, and the truss columns and the truss beam are connected quickly by flange bolts, which is shown in figure 3; the truss column 2 is detachably mounted on the foundation 1, the foundation 1 adopts a cast-in-place concrete strip foundation, a connecting plate is welded at the column bottom of the truss column, 4 anchor bolts are arranged at the connecting positions of the strip foundation and the truss column, the distance between the anchor bolts is determined by the size of a column bottom plate, and the truss column connecting plate and the anchor bolts are connected by nuts, which is shown in figure 4; the truss columns 2 and the truss beams 3 are connected into a single truss, the armpit rods 14 are connected between the tops of the truss columns and the ends of the truss beams, the armpit rods 14 are connected with the truss beams and the truss columns through the ear plate bolts, and the modulus of each truss is the same.
At the lower part of a truss girder 3 of the same truss, two ends of the truss girder 3 are transversely connected through a prefabricated inhaul cable 4, a connection lug plate is reserved on the truss girder at the connection position of the truss girder and the inhaul cable, and a cable head of the prefabricated inhaul cable is connected with the lug plate, which is shown in figure 5; the middle part of the prefabricated inhaul cable is connected with the truss girder through a stay bar, one end of the stay bar is connected with the inhaul cable through a cable clamp, the other end of the stay bar is connected with the truss girder through an ear plate, the inhaul cable is tensioned after installation, and after the tension is in place, the installation of a single truss is completed. The lower guy cables 4 of each truss beam are the same.
Two adjacent trusses are connected longitudinally through connecting beams 6, and the connecting beams are connected with the truss columns 2 through lug plate pin shafts, so that a truss structure is integrally formed.
The gable truss column 2 is additionally arranged at two ends of the structure according to actual conditions and needs and is connected with the truss girder 3. The front two trusses at the two ends of the truss structure are additionally provided with stay cables 5 for stabilizing, the stay cables 5 penetrate through the stay cable plates, the end parts of the stay cables are fastened on truss columns through nuts, and the overall stability of the structure is improved, and the stay cables 5 are shown in fig. 6.
In the invention, the prefabricated maintenance membrane cloth 7 adopts a modular structure:
the membrane cloth 7 adopts an integral membrane at the ridge of the prefabricated steel truss, and the integral membrane is quickly detached and quickly assembled at the ridge through a top membrane node 71;
the membrane cloth 7 is a split membrane at the eave of the prefabricated steel truss, and the split membrane is connected at the eave in a quick-release and quick-assembly manner through an edge membrane node 72;
the membrane cloth 7 is connected at the column base of the prefabricated steel truss in a quick-release and quick-assembly mode through a bottom membrane node 73.
The assembled string cable membrane structure combines the characteristics of a steel truss structure, a cable structure and a membrane structure, the assembled prefabricated steel truss has light dead weight and high construction speed, the prestress string structure solves the stress of a large-span structure, the membrane structure is used for integral maintenance of a vertical face and a roof, the requirements of repeated quick disassembly and assembly are met, the characteristics of each structure are fully exerted, the integral structure is light, the requirement of large-span emergency engineering is met, each material is prefabricated in advance, the modulus of the prefabricated steel truss is unified, the modular design of membrane cloth is realized, the transportation and the hoisting are convenient, the manual on-site quick assembly and disassembly of connecting nodes among modules can be realized, large-scale mechanical equipment is not needed, the connection is reliable, and the construction efficiency is high.
Referring to fig. 7, as an embodiment of the present invention, the apical membrane node 71 is specifically: the main membrane covers the ridge of the prefabricated steel truss integrally to form a top membrane 710, the inner surfaces of two sides of the top membrane 710 are connected with a single welding connection membrane 8 respectively, one end of the single welding connection membrane 8 is welded with the inner surface of the top membrane 710, and the other end of the single welding connection membrane 8 is connected with a ridge rod 10 through a binding rope 9.
The integral membrane structure is adopted at the ridge, so that the integral pulling strength of the side membranes and the side membranes at the two sides of the ridge is improved, the wind resistance strength of the membrane structure at the ridge is enhanced, meanwhile, the integral membrane structure gives consideration to the water resistance at the ridge, and the additional arrangement of the water resistance structure is not needed.
According to the invention, the inner surface of the top diaphragm 710 is connected with the diaphragm 8 by adopting single welding and is welded with the top diaphragm 710, two films are tightly adhered together during welding, contact surface materials are melted by high-temperature heating of professional equipment, and the two films are firmly adhered together after cooling. Through addding singly weld and connect the diaphragm and be used for connecting fixed main membrane and truss structure, firstly can locally strengthen the intensity of roof ridge department main membrane, secondly avoided offering the connecting hole on the main membrane here, avoided the junction node to take place to leak.
As shown in fig. 8, a plurality of high-strength metal buckles 11 are uniformly distributed on the edge of the single-welded connection membrane 8, the binding ropes 9 penetrate through the high-strength metal buckles 11 of the single-welded connection membrane 8 on the two sides of the ridge, and the single-welded connection membrane 8 on the two sides is connected and fixed with the ridge rod 10, so that the top membrane 710 is firmly fixed at the ridge, and the binding ropes can be quickly detached and assembled, and the structure is simple and the cost is low. The single welded connection membrane 8 at the other nodes is connected in the same way as the truss members.
Referring again to fig. 7, the present invention selectively provides a reinforcing membrane 711 between the inner surface of the top membrane 710 and the ridge rod 10, the reinforcing membrane 711 having a shape corresponding to the shape of the top membrane 710, and the reinforcing membrane 711 is welded to the inner surface of the top membrane 710. Top diaphragm 710 and roof member 10 direct contact, and bear the holding power of roof member 10 under the stress, take place membrane cloth wearing and tearing destruction easily under the long-term atress, through set up one between top diaphragm 710 internal surface and roof member 10 and strengthen diaphragm 711, strengthen diaphragm 711 and roof member 10 direct contact, avoid or delayed the damage of main membrane.
With continued reference to fig. 9, as one embodiment of the present invention, the edge membrane node 72 is: the split body of eave department of main membrane at prefabricated steel truss is limit portion diaphragm 721 and side diaphragm 722, limit portion diaphragm 721 and side diaphragm 722 adopt the ligature rope to connect in eave member 12 outside, and limit portion diaphragm 721 connects diaphragm 8 through a single welding and is connected with eave member 12, the single welding connects diaphragm 8 upper end and limit portion diaphragm 721 internal surface welding, the lower extreme is connected with eave member 12 through ligature rope 9, side diaphragm 722 is connected diaphragm 8 through a single welding and is connected with eave member 12, the single welding is connected diaphragm 8 upper end and is connected with eave member 12 through ligature rope 9, the lower extreme and side diaphragm 722 internal surface welding.
Eave department owner membrane components of a whole that can function independently are limit portion membrane and side membrane, make things convenient for modularization preparation and mat formation. Similarly, the inner surface of the main membrane is connected with the truss structure through the single-welding connection membrane, so that the strength of the connection node is high, and the strength of the local main membrane at the connection node can be enhanced.
In the invention, a waterproof membrane 13 is further covered on the eave of the prefabricated steel truss, the upper end of the waterproof membrane 13 is welded with the outer surface of the edge membrane 721, and the lower end is bonded with the outer surface of the side membrane 722. Because the main membrane adopts the structural design of the modularized split membrane at the eave, the waterproof need is considered here, and aiming at the structural characteristics of the membrane cloth, the invention adopts the waterproof membrane 13 at the eave, and more importantly, the upper end of the waterproof membrane 13 is welded with the outer surface of the edge membrane 721, and the contact surface materials of the two membranes are melted at high temperature during welding and firmly bonded together, thereby playing a good waterproof effect and effectively preventing rainwater from flowing in through the node at the place. The problem that rainwater flows into the lower end of the waterproof membrane 13 does not exist, and the waterproof membrane and the outer surface of the side membrane 722 are connected through self-contained thread gluing in an adhesive mode, so that quick installation is achieved.
Referring to fig. 3 and 13 again, the truss girder 3 of the present invention adopts a segmented assembly structure, which is at least composed of a top girder segment 31 and two left and right side girder segments 32, and connecting flanges are left at the two ends of the top girder segment 31 and the side girder segments 32 and at the top of the truss column 2, and the top girder segment 31 is connected with the two left and right side girder segments 32, and the truss girder 3 is connected with the truss column 2 through flanges and bolts. The prefabricated truss combined prestressed inhaul cable structure is particularly suitable for large-span emergency engineering, when a large-span structure is constructed, the truss girder 3 is too long to facilitate hoisting construction, and the truss girder is designed into a segmented assembly type structure, and a flange structure is reserved at the end of a girder segment, so that the truss girder and the prestressed inhaul cable are quickly connected through flanges during assembly, and convenient hoisting and quick construction are realized.
Based on the segmented assembled truss girder structure, the sizes of the top diaphragm 710 and the top girder section 31 and the sizes of the side diaphragm 721 and the side girder section 32 are matched, so that when the truss girder and the membrane cloth are prefabricated in a factory, the girder section and the corresponding diaphragm can be manufactured in the same size, the diaphragm can be fixed on the corresponding girder section in advance in the factory manufacturing stage according to the situation, the girder section only needs to be butted during field assembly, and then the waterproof diaphragm is fixed, so that the process and the construction period of field assembly are saved.
As shown in figure 1, the top diaphragm 710 and the edge diaphragm 721 can be quickly detached and quickly connected at the connecting node of the top beam section 31 and the edge beam section 32 through the membrane dividing node 74, the connecting mode of the membrane dividing node 74 and the edge diaphragm node 72 is the same, as shown in figure 10, the top diaphragm 710 and the edge diaphragm 721 are connected outside the roof rod member 17 through the binding rope 9, the top diaphragm 710 is connected with the roof rod member 17 through the single-welding connecting diaphragm 8, the upper end of the single-welding connecting diaphragm 8 is welded with the inner surface of the top diaphragm 710, the lower end of the single-welding connecting diaphragm 8 is connected with the roof rod member 17 through the binding rope 9, the edge diaphragm 721 is connected with the roof rod member 17 through the single-welding connecting diaphragm 8, the upper end of the single-welding connecting diaphragm 8 is connected with the roof rod member 17 through the binding rope 9, and the lower end of the single-welding connecting diaphragm is welded with the inner surface of the edge diaphragm 721.
Similarly, the invention covers a waterproof membrane 13 on the roof of the prefabricated steel truss, the upper end of the waterproof membrane 13 is welded with the outer surface of the top membrane 710, and the lower end is bonded with the outer surface of the side membrane 721, and the specific effect is similar to the design of the side membrane node 72.
With continued reference to fig. 11, base film node 73 is, as one embodiment of the present invention: the side membrane 722 is connected to the tie beam 6 at the foot of the truss column 2 by a binding rope 9.
Preferably, the column base is covered with a waterproof membrane 13, the upper end of the waterproof membrane 13 is welded with the outer surface of the side membrane 722, a good waterproof effect can be achieved, the lower end of the waterproof membrane is fixed on the foundation 1 through a self-tapping screw 15, an angle steel 16 can be arranged on the foundation 1 during actual construction, one side of the angle steel is fixed on the foundation 1 through the self-tapping screw 15, the other side of the angle steel is used for fixing the waterproof membrane 13 through the self-tapping screw 15, the angle steel 16 serves as a fixing measure for connecting the waterproof membrane 13 on one hand, and plays a waterproof role in the foundation part on the other hand, and rainwater is prevented from entering the building structure from the position.
The membrane cloth 7 of the invention is made of the same material as the single welding connection membrane 8 and the waterproof membrane 13, and adopts PVC or PTFE membrane material.
The construction process of the string cable film steel structure building system comprises the following steps:
firstly, constructing a concrete foundation 1 and embedding anchor bolts in advance, as shown in figure 12;
secondly, as shown in fig. 13, constructing a truss column 2, and connecting and fixing the truss column 2 and the foundation 1;
thirdly, as shown in fig. 14, constructing the truss girder 3, wherein the truss girder is divided into three sections, and the three sections of truss girders are quickly connected through flanges;
fourthly, as shown in fig. 15, assembling a single truss, quickly connecting the left end and the right end of the truss beam with truss columns on two sides through flanges, and installing an armpit rod 14;
fifthly, as shown in fig. 16, constructing a prefabricated inhaul cable 4, wherein two ends of the inhaul cable are connected with connecting plates on two sides of the truss girder;
and sixthly, constructing the connecting beam between the adjacent trusses and the inhaul cable between the trusses as shown in figure 17.
And seventhly, as shown in fig. 18, constructing the gable walls at two ends of the structure and prefabricating the steel truss.
Eighth, as shown in fig. 19, the top membrane is installed:
(1) manufacturing a top diaphragm in a factory, welding a reinforcing diaphragm at the ridge on the inner surface of the top diaphragm, and welding two single welding connection diaphragms at two sides of the ridge;
(2) covering the top diaphragm at the ridge of the prefabricated steel truss, and connecting the two single-welding connecting diaphragms with a ridge rod piece by using binding ropes;
ninth, as shown in fig. 20, the side membrane is installed:
(1) welding a single welding connection membrane on the upper edge and the lower edge of the inner surface of the edge membrane respectively;
(2) covering the edge diaphragm on the roof of the prefabricated steel truss, connecting the edge diaphragm and the top diaphragm outside the roof rod piece by using a binding rope, and connecting the single-welded connection diaphragm on the upper edge of the edge diaphragm with the roof rod piece by using the binding rope;
(3) covering a waterproof membrane on the roof of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the top membrane, and bonding the lower end of the waterproof membrane with the outer surface of the side membrane;
tenth, as shown in fig. 21, the side membrane is installed:
(1) welding a single welding connection membrane on the upper edge of the inner surface of the side membrane;
(2) covering the side diaphragm on the side surface of the prefabricated steel truss, connecting the side diaphragm with the edge diaphragm at the outer side of the eave rod piece by adopting a binding rope, and connecting the single-welded connecting diaphragm at the upper edge of the side diaphragm with the eave rod piece by using the binding rope;
(3) covering a waterproof membrane at the eave of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the edge membrane, and bonding the lower end of the waterproof membrane with the outer surface of the side membrane;
(4) connecting the side diaphragm with the connecting beam at the column foot of the prefabricated steel truss through a binding rope;
(5) covering a waterproof membrane at the column foot of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the side membrane, and fixing the lower end of the waterproof membrane on a foundation through a self-tapping screw;
as shown in fig. 22, the gable membranes at the two ends of the structure are installed according to specific conditions and requirements, and the construction is completed.
The invention provides an assembled string cable membrane structure system for emergency engineering, which is used for quickly building a temporary placing room for earthquake relief, quickly building a soil environment restoration greenhouse, quickly building a greenhouse in a cultural relic excavation site, combining the characteristics of a prefabricated steel truss structure, a prestressed cable structure and a membrane structure, and has the advantages of flexible span, modular membrane cloth design, special design of connection nodes, rope binding connection, convenience and quickness, welded connection of node membranes, high strength, sealing and rain prevention, and manual quick disassembly and quick assembly can be realized, so that the use requirements of special occasions and special engineering are met.
It will be readily appreciated by those skilled in the art that the above-described preferred embodiments may be freely combined, superimposed, without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the invention, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a rapid Assembly's emergent engineering is with a string cable membrane steel construction building system which characterized in that is maintained the membrane cloth by prefabricated steel truss, prefabricated cable and prefabrication and constitutes, wherein:
the prefabricated steel truss adopts a modular structure and consists of truss columns and truss girders; the column foot of the truss column is connected with the foundation bolt pre-embedded in the concrete foundation in a quick-release and quick-assembly manner; the two ends of the truss girder are quickly disassembled and assembled with the top end of the truss column;
the prefabricated inhaul cable adopts a modular structure, two ends of the inhaul cable are connected with two ends of the truss girder, and the middle part of the inhaul cable is connected with the middle part of the truss girder through a stay bar to form a single-truss prestress string-stretching truss; two adjacent trusses are connected in the longitudinal direction through a connecting beam to form a prefabricated steel truss;
the prefabricated maintenance membrane cloth adopts a modular structure: the membrane cloth is arranged at the ridge of the prefabricated steel truss and adopts an integral membrane, and the integral membrane is connected at the ridge through a top membrane node in a quick-release and quick-assembly manner; the film cloth is a split film at the eave of the prefabricated steel truss, and the split films are connected at the eave in a quick-release and quick-assembly manner through edge film nodes; the membrane cloth is arranged at the column base of the prefabricated steel truss and is connected through the joint of the bottom membrane in a quick-detachable and quick-assembling manner.
2. The string cable membrane steel structure building system of claim 1, wherein:
the apical membrane node is: the main membrane covers the ridge of the prefabricated steel truss integrally to form a top membrane, two sides of the top membrane are connected with a single welding connection membrane respectively, one end of the single welding connection membrane is welded with the inner surface of the top membrane, and the other end of the single welding connection membrane is connected with a ridge rod piece through a binding rope.
3. The string cable membrane steel structure building system of claim 2, wherein:
and a reinforcing membrane is arranged between the inner surface of the top membrane and the ridge rod piece, the shape of the reinforcing membrane is consistent with that of the top membrane, and the reinforcing membrane is welded with the inner surface of the top membrane.
4. The string cable membrane steel structure building system of claim 2, wherein:
the edge membrane node is as follows: the owner membrane is in eave department components of a whole that can function independently of prefabricated steel truss is limit portion diaphragm and side diaphragm, limit portion diaphragm and side diaphragm adopt the ligature rope to be connected in the eave member outside, and limit portion diaphragm is connected diaphragm and eave member through a single welding and is connected, single welding is connected diaphragm upper end and limit portion diaphragm internal surface welding, the lower extreme is connected with the eave member through the ligature rope, the side diaphragm is connected diaphragm and eave member through a single welding and is connected, single welding is connected diaphragm upper end and is connected with the eave member through the ligature rope, lower extreme and side diaphragm internal surface welding.
5. The string cable membrane steel structure building system of claim 4, wherein:
the eave of prefabricated steel truss covers a waterproof membrane, and waterproof membrane upper end and the surface welding of limit portion diaphragm, the lower extreme bonds with the surface of side diaphragm.
6. The string cable membrane steel structure building system of claim 4, wherein:
the truss girder is of a segmented assembly type structure and at least comprises a top girder section and a left side girder section and a right side girder section, connecting flanges are reserved at two ends of the top girder section, the two ends of the side girder section and the top of the truss column, and the top girder section is connected with the left side girder section, the right side girder section, the truss girder and the truss column through the flanges.
7. The string cable membrane steel structure building system of claim 6, wherein:
the sizes of the top diaphragm and the top beam section, the sizes of the side diaphragm and the side beam section are matched, the top diaphragm and the side diaphragm are connected at the connecting node of the top beam section and the side beam section in a quick-release and quick-assembly mode through a membrane separation node, and the connecting modes of the membrane separation node and the side membrane node are the same.
8. The string cable membrane steel structure building system of claim 4, wherein:
the basement membrane node is: and the side membrane is connected with the connecting beam at the column foot of the prefabricated steel truss through a binding rope.
9. The string cable membrane steel structure building system of claim 8, wherein:
the column foot of prefabricated steel truss covers a waterproof membrane, and waterproof membrane upper end and the surface welding of side diaphragm, the lower extreme is fixed in on the basis.
10. A construction process of the string cable membrane steel structure building system according to any one of the claims 1 to 9, characterized by comprising the following steps:
firstly, constructing a concrete foundation and embedding foundation bolts;
secondly, connecting the truss column with foundation bolts to fix the truss column;
thirdly, the truss beam sections are spliced by the flanges;
(2) the left end and the right end of the truss girder are connected with truss columns on two sides through flanges;
(3) the truss girder and the truss column are connected with the armpit rod;
fourthly, cable heads at two ends of the prefabricated inhaul cable are connected with a connecting plate on the truss girder;
fifthly, (1) mounting a connecting beam between two adjacent trusses;
(2) the front two trusses at the two ends of the structure are connected by a prefabricated inhaul cable;
(3) finishing the construction of the prefabricated steel truss;
sixthly, mounting a top diaphragm:
(1) manufacturing a top diaphragm in a factory, welding a reinforcing diaphragm at the ridge on the inner surface of the top diaphragm, and welding two single welding connection diaphragms at two sides of the ridge;
(2) covering the top diaphragm at the ridge of the prefabricated steel truss, and connecting the two single-welding connecting diaphragms with a ridge rod piece by using binding ropes;
step seven, installing edge diaphragms:
(1) manufacturing edge membranes in a factory, and welding a single-welding connection membrane on the upper edge and the lower edge of the inner surface of each edge membrane;
(2) covering the edge diaphragm on the roof of the prefabricated steel truss, connecting the edge diaphragm and the top diaphragm outside the roof rod piece by using a binding rope, and connecting the single-welded connection diaphragm on the upper edge of the edge diaphragm with the roof rod piece by using the binding rope;
(3) covering a waterproof membrane on the roof of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the top membrane, and bonding the lower end of the waterproof membrane with the outer surface of the side membrane;
eighth, installing a side diaphragm:
(1) manufacturing a side diaphragm in a factory, and welding a single welding connection diaphragm on the upper edge of the inner surface of the side diaphragm;
(2) covering the side diaphragm on the side surface of the prefabricated steel truss, connecting the side diaphragm with the edge diaphragm at the outer side of the eave rod piece by adopting a binding rope, and connecting the single-welded connecting diaphragm at the upper edge of the side diaphragm with the eave rod piece by using the binding rope;
(3) covering a waterproof membrane at the eave of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the edge membrane, and bonding the lower end of the waterproof membrane with the outer surface of the side membrane;
(4) connecting the side diaphragm with the connecting beam at the column foot of the prefabricated steel truss through a binding rope;
(5) covering a waterproof membrane at the column foot of the prefabricated steel truss, welding the upper end of the waterproof membrane with the outer surface of the side membrane, and fixing the lower end of the waterproof membrane on a foundation through a self-tapping screw and angle steel;
and finishing construction.
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