3994 results about "Floor slab" patented technology

A high-rise building with a large scale dot-matrix display device is disclosed. The glass panels arranged in rows and columns form a curtain wall structured transparent outer wall 12 extending over an exterior of a building 10. Each panel is installed apart from end portions of floor slabs to form a void space therebetween. A plurality of louver structured modules 22 are arranged within the void space in rows and columns to form a large scale display area. Each module 22 has a louver-like structure formed of a plurality of posts 24 arranged in substantially parallel relationship and a plurality of parallel, uniformly spaced beams 26 connecting said adjacent posts 24. A plurality of LED combination lamps 28 are mounted on each beam 26 at uniform pitches as those between the adjacent beams 26. The LEDs are driven by drive circuits disposed in each beam 26. The vertical guide members 44 are fixed to the end portions of the floor slabs 20. The guide members 44 are arranged substantially in parallel relationship so that the modules 22 are supported between the adjacent guides 44 at the both lateral sides thereof. A plurality of vertical mullion members 48 fixed to the vertical guide members 44 as spaced apart from each of the vertical guides 44, so that the glass panels 12 are supported therebetween.

A member for in-situ casting the reinforced concrete is composed of two halves, which are fastened together to form a hollow thin-wall member used for in-situ casting hollow floor slab, roof, wall, etc. Said member is made up by die pressing. Its advantages are high strength, low cost, and convenient transportation.

The invention relates to the field of assembled concrete structures, in particular to an assembly connecting structure and an assembly connecting method of an assembled concrete frame and shear wall combination. A cast-in-place strip is disposed between precast columns and precast shear walls to connect column-wall embedded rebars. Vertical through holes are reserved in a precast node-precast beam integrated component to achieve communicated connection of vertical rebars for the upper and lower columns and the upper and lower shear walls. Embedded steel sleeves at the lower ends of the precast columns and the precast shear walls are mutually embedded with projecting rebar segments extending up out of the lower columns and the lower walls, and are integrated with the lower columns and the lower walls through cast mortar. The projecting straight rebars at the upper ends of the precast columns and the precast walls penetrate through the through holes reserved in the precast node-precast beam integrated component and protrude a floor slab, and the precast columns and the precast nodes are firmly integrated with the precast shear walls precast beams by cast mortar. Wet operations such as in-place casting of concrete are reduced to the maximum extent, building quality is improved, construction period is shortened, and energy conservation and emission reduction are achieved.

A novel method for rapidly assembling a low-cost energy-saving house with precast columns, beams and slabs comprises the steps of preparing house columns, beam molds and built-in reinforcing steel bars or profiled steel bars, pouring concrete grout into the molds, high-speed rotating in a centrifuge, curing, and demolding to obtain precast reinforced concrete columns and beam components; and inserting the precast columns on a cup foundation element, passing the precast beams through the preformed pores on the precast column, lapping precast floor slabs on the precast beams, and embedding wall slabs inside the embedding grooves of the precast beams, so as to form the major structure of the rapidly assembled low-cost energy-saving house. The inventive method has the advantages of application to industrial production, no air holes in components, high density, high strength, long service life, standardized production, low production cost, low time and raw materials consumption, rapid house construction speed, and high quality; and is a novel energy-saving house construction method in the construction field.

The invention provides a construction method for a reinforced concrete prefabricated house. The method comprises the following steps of constructing a foundation; mounting prefabricated wallboards; casting in situ T-shaped, L-shaped and inline vertical heel posts; pouring micro-expansion mortar into vertical steel tie preformed holes in the upper and lower ends of the prefabricated wallboards; mounting reinforced concrete prefabricated superimposed beams; mounting reinforced concrete prefabricated stairs and flat stepping plates; mounting prefabricated superimposed floor slabs on the prefabricated superimposed beams; welding and binding corresponding reinforcements exposed from the prefabricated superimposed floor slabs, the upper ends of the prefabricated superimposed beams and the prefabricated wallboards into a whole, and inserting vertical anchor bars for fixing the upper and lower end parts of the prefabricated superimposed beams and the wallboards, and casting self-compacting concrete on the upper parts of the prefabricated superimposed floor slabs. A 100m-high building can be constructed in an 8 earthquake fortification region such as Beijing by sequential and cyclic construction to a design top layer from bottom to top. According to the method, a technical index of building energy efficiency of 75 percent can be achieved, and the development of a prefabricated house construction technology can be accelerated.

The interlocking curtain wall insulation system comprises a frame connected to a building structure having at least first and second parallel transoms, at least first and second parallel mullions, the at least first and second parallel transoms operably engaging the at least first and second parallel mullions. The device further comprises an insulation including a safing insulation extending between a floor slab and the backer bar and compressively fit therein, an upper curtain wall insulation depending from an upper insulation hanger and compressing the safing insulation, and a lower curtain wall insulation depending from a lower insulation hanger.

A light steel framing construction technique for light gauge load bearing wall type buildings uses specialized brackets to suspend poured slab floors. Multiple stories of the building can be erected without waiting for individual concrete slab floors to be poured and set at each story. During construction, a building is protected from torsional warping, such as may be occur under wind loads, by a series of lateral and diagonal bracing structures at each level affixed in a plane perpendicular to the load bearing elements. Multiple concrete floor slabs can be poured sequentially or simultaneously, as desired, during the construction process.

The invention discloses a clamp for of a longitudinal beam of a rear floor slab of an automobile, comprising support legs and a support table fixed on the support legs, wherein a sliding and clamping device and a plurality of positioning and clamping devices are arranged on the support table, wherein the sliding and clamping device is used for fixing parts to be welded on the longitudinal beam of the rear floor slab; the positioning and clamping devices are used for fixing the longitudinal beam of the rear floor slab and the parts to be welded on the longitudinal beam of the rear floor slab; each positioning and clamping device comprises a first angle seat, a fist template fixedly connected with the first angle seat and a clamping arm which is rotationally matched with the first template; first positioning pins which are matched with mounting hole sites on the longitudinal beam of the rear floor slab are arranged on the at least one first angle seat in the positioning and clamping device; the sliding and clamping device comprises a second angle seat and a second template which is fixedly connected with the second angle seat; and second positioning pins matched with the mounting hole sites of the parts to be welded on the longitudinal beam of the rear floor slab are arranged on the second template. According to the clamp, clamping and welding the longitudinal beam of the rear floor slab of the automobile can be realized, the positioning and welding the longitudinal beam of the rear floor slab of the automobile are effectively solved and the welded consistency is ensured.

The invention relates to an integrally fabricated box-shaped multi-ribbed composite floor, and belongs to a prefabricated concrete structural component. The integrally fabricated box-shaped multi-ribbed composite floor is characterized in that the composite floor mainly comprises bottom transverse reinforcement bars, bottom linkage reinforcement bars, lower ribbed beam longitudinal ribs, ribbed beam stirrups, bottom longitudinal reinforcement bars, shutterings, truss ribs, flanges, top transverse reinforcement bars, wedge-shaped grooves and a concrete layer, wherein the bottom linkage reinforcement bars, the bottom transverse reinforcement bars, the lower ribbed beam longitudinal ribs, the bottom longitudinal reinforcement bars, the ribbed beam stirrups, the top transverse reinforcement bars and the truss ribs form a steel reinforcement framework of the composite floor; the concrete layer is poured with a conventional concrete pouring method, the flanges are arranged at the bottoms of the front side and the rear side of a concrete slab body, the connecting position of two composite floors forms a U-shaped groove by the flanges, and crack pouring of post-poured concrete is facilitated; and the wedge-shaped grooves are formed in the front side part and the rear side part of the concrete slab body at intervals respectively, the wedge-shaped grooves between every two adjacent composite floors form shear keys, and the shearing resistance between the composite floors is increased.

The invention relates to the technical field of fabricated concrete frame structures, and discloses a pre-stressing-force fabricated concrete-frame-joint connecting structure and a construction method thereof. The pre-stressing-force fabricated concrete-frame-joint connecting structure comprises a prefabricated concrete column, a prefabricated concrete superposed beam, a composite floor slab, a post-tensioned pre-stressing tendon, an anti-bending and energy-consuming reinforcing steel bar and a shear-resistant and high-strength reinforcing steel bar, wherein the post-tensioned pre-stressing tendon, the anti-bending and energy-consuming reinforcing steel bar and the shear-resistant and high-strength reinforcing steel bar are connected with the prefabricated concrete column and the prefabricated concrete superposed beam. A beam post-pour layer of the prefabricated concrete superposed beam and a slab post-pour layer of the composite floor slab are poured integrally, the inner portion of a beam column seam between the prefabricated concrete superposed beam and the prefabricated concrete column is filled with high-strength crack-pouring binding materials, the anti-bending and energy-consuming reinforcing steel bar and the shear-resistant and high-strength reinforcing steel bar are laid in the beam post-pour layer of the upper portion of the prefabricated concrete superposed beam, and the anti-bending and energy-consuming reinforcing steel bar is located above the shear-resistant and high-strength reinforcing steel bar. According to the pre-stressing-force fabricated concrete-frame-joint connecting structure and the construction method thereof, efficient construction can be achieved, the anti-seismic property and the progressive-collapse-resistant capability are good, and post-earthquake repairing is facilitated.

A construction and a method for fireproof sealing between the outer edges of a floor and the exterior wall structure of a building which includes the placement of an insulation support member between the safing insulation positioned immediately around the floor edge, and the spandrel insulation extending between the vertical studs inside of the outer cladding. Safing insulation is normally compressed prior to placement, and this compression is maintained by positioning the insulation support member in abutment therewith. Also, by positioning the insulation support member between the safing insulation and the spandrel insulation, the support member itself is protected which enhances maintenance of the effective seal of the slot between the floor and the outer cladding. Also during installation, the insulation support member can be used to achieve a desired compression of the safing insulation by positioning it after initial positioning of the insulation member such that it is compressed during final installation of the insulation member.

The invention discloses a mixed steel-concrete composite frame structure, belonging to the technical field of engineering structure. The frame structure comprises a composite column of reinforced special shaped steep pipe concrete, a composite beam of concrete-steel pipe partially filled lightweight aggregate concrete and a reinforced concrete floor; wherein, the composite column of reinforced special shaped steep pipe concrete comprises a steel pipe of a special shaped column, a longitudinal bar of the column, stirrup of the column, concrete outside the steel pipe of the column and core concrete inside the steel pipe of the column; the composite beam of concrete-steel pipe partially filled lightweight aggregate concrete comprises a steel pipe of the beam, an inner separator, a longitudinal bar of the beam, stirrup of the beam and concrete outside the steel pipe of the beam; the space formed by the steel pipes of the beam, which are positioned on the lower part of the steel pipe at the end of the beam and on the upper part of the steel pipe on the midspan of beam, and the inner separator is filled with the core lightweight aggregate concrete in the steel pipe of the beam. The frame structure of the invention has excellent fire and shock resistance and relatively light dead load, can be used in building structures such as residence and is convenient for effective use of building space.

The invention discloses a compound type connection shear wall structure and an assembling method thereof. The compound type connection shear wall structure comprises N shear wall components of the same structure, wherein every two adjacent shear wall components are connected through a compound shear key and a key groove so that a compound type connection shear wall can be formed. Due to the mutual guide-in effect of the compound shear keys and the key grooves, the construction precision is improved, and eccentric compression generated by inaccurate assembling is avoided. Because the shear key on each shear wall component below can bear the weight of the corresponding shear wall component above when the next layer is assembled, assembling of a wall body of a previous layer can be instantly conducted after floor pouring is completed without waiting till floor concrete reaches the strength, and the assembling cycle of floors can be greatly shortened. The shear keys of the shear wall components below are embedded in the key grooves of the shear wall components above, the shear keys can bear transverse shearing force, the shear resistance of the structure is enhanced, and reliability of the structure is enhanced.

The fully prefabricated assembled steel-steel concrete structure includes two kinds of assembling forms. The first one is fully prefabricated assembled steel column-steel concrete structure, and its prefabricated steel column consists of H-shaped steel column, reinforcing concrete ribs, supporting steel plate and prestress-shearing force friction nodes with shear resisting strips. The second one is fully prefabricated assembled prefabricated steel pipe-concrete column-steel concrete structure, and the prefabricated steel pipe-concrete column consists of steel pipe with square cross section, micro expanding high strength concrete cast inside the steel pipe and shear resisting strips attached to the outer wall of the steel pipe to form preshearing force-friction type nodes. The present invention has raised antiseismic performance, area utilization, construction efficiency, fireproof performance, low cost and small member size, and is suitable for various buildings.

The invention discloses a column-through assembled prestressed concrete frame system and a construction method thereof. The system comprises a foundation, a prefabricated reinforced concrete column, a prefabricated reinforced concrete beam, a superimposed floor slab and an external hung prefabricated wallboard, wherein a column prestressed duct is formed in the prefabricated reinforced concrete column; a beam prestressed duct is formed in the prefabricated reinforced concrete beam; post-tensioned unbonded prestressed tendons are penetrated into the beam prestressed duct and the column prestressed duct; energy-dissipation steel bars are anchored between the prefabricated reinforced concrete column and the superimposed floor slab. The structure provided by the invention has a good seismic performance; the lower part of a beam-column joint is subjected to unreinforced connection so that the structure is simple; the post-tensioned unbonded prestressed tendons and a replaceable column base energy dissipater are used so that the structure is less damaged and easy to be repaired in the earthquake; a construction manner of using the prefabricated superimposed floor slab and prestressed assembly makes site construction convenient and rapid and saves a lot of supports compared with a traditional prefabricated assembly structure; the column-through assembled prestressed concrete frame system provided by the invention is used in combination with lateral supports, shear walls and other lateral force resisting members, and is applicable to most high-rise public buildings.

The invention discloses a quick construction method for high-rise buildings, which includes: hoisting an integral lifting device; positioning all pneumatic pouring mould opening and closing devices; assembling single cradle units integrally to form an integrated mould cradle assembly while fixedly mounting the pneumatic pouring mould opening and closing devices below the integrated mould cradle assembly; starting all four-screw lifters to jack the integrated mould cradle assembly; hoisting reinforcement cages of walls and beams of a floor; falling the integrated mould cradle assembly, driving the pneumatic pouring mould opening and closing devices to close the moulds horizontally; pouring concrete and then opening the moulds after concrete is solidified; lifting the integrated mould cradle assembly upwards; hoisting floor slabs, prefabricated boards for superposed parts of balconies, prefabricated stairs and prefabricated bay windows; laying cast-in-situ reinforcing meshes of the superposed floor slabs and casting concrete on the superposed floor slabs; repeating the above steps until completing building of all floors; and finally removing the integrated mould cradle assembly and a lifting support. The quick construction method for the high-rise buildings has the advantages of quick construction, high construction quality, safety and reliability in construction and low construction cost.

The invention discloses a unilateral formwork erecting system of a cast-in-site concrete arc outer wall body and a construction method thereof. The construction method comprises the following construction steps: 1. setting an embedded part on a concrete floor slab below an arc wall body which is not cast; 2. pre-splicing an arc wall body formwork; 3. pre-splicing and mounting a unilateral support frame on site and fastening the unilateral support frame and the embedded part; 4. connecting the unilateral support frame and the arc wall body formwork; 5. setting up a scaffold required by the unilateral support frame; 6. adjusting, reinforcing and checking various parts; 7. casting arc wall body concrete between the arc wall body formwork and an arc outer wall body of an adjacent building; and 8. detaching the formwork after the concrete strength meets the specification requirement. The invention has the advantages of greatly shortening the construction period, saving labor force, reducing the construction cost and meeting the requirement of structural construction quality and is particularly applicable for wall body construction of automobile ramps, stadiums and other large-scale public buildings with arc structures.

The invention discloses a steel bar concrete beam reinforcing structure with a partially restrained steel truss, comprising upper angle steel, lower angle steels, a web batten plate, a bottom steel plate, an anchored steel plate, a shear resistant anchor bolt and a bolt, wherein the upper angle steel, the lower angle steels, the web batten plate and the bottom steel plate are spliced to form an opened steel truss for tightly hooping a beam to be reinforced, the lower angle steels are respectively arranged at two lower corners of the beam to be reinforced and are connected with each other by the bottom steel plate, the upper angle steel is mounted between the beam to be reinforced and a slab, and is connected with the lower angle steels by the web batten plate, the anchored steel plate is arranged in the slab and is connected with the shear resistant anchor bolt arranged in the slab, and the shear resistant anchor bolt is connected with the upper angle steel by the bolt in a pre-fastening mode. The steel truss and the steel bar concrete beam form two load bearing protection lines, so the bearing capacity of the steel bar concrete beam meets the reinforcing design requirement, and the safety of a member and a structure can be ensured.

The invention relates to an industrialized assembled multi-story high-rise steel structure centrally-braced system, belonging to the field of buildings. The industrialized assembled multi-story high-rise steel structure centrally-braced system comprises steel structure main body slab racks, bracing members and columns. Wide beams, narrow beams and slabs are integrally fabricated in a factory. The wide beams and the narrow beams are welded in the factory by using channel steel. Pipelines pass through positions between the web channel steel of the wide beams and the web channel steel of the narrow beams to form base slat racks A, base slab racks B and base slab racks C. High-strength bolts and partial welding only in the factory are adopted for parts where the base slab racks are connected with column bases and the wide beams are connected with the narrow beams. The column bases are connected with the columns through high-strength bolts and flanges. The industrialized assembled multi-story high-rise steel structure centrally-braced system has the advantages that the construction speed is fast, the structure bearing capacity is high, the lateral movement resistance is good, the strength of materials can be fully exerted, the horizontal load is effectively resisted, the structure interlayer displacement is reduced, the environmental pollution caused by welding is reduced and the cost is saved.

Described herein is a construction system for a subway station, wherein the construction of guide walls is accomplished using a guide wall steel formwork system, the construction of support beams is accomplished using a support beam steel formwork system, the construction of sidewalls is accomplished using a sidewall trolley, and the construction of floor slabs is accomplished using a floor slab trolley.

The invention discloses a local prestress assembly type energy-dissipating beam column joint. The beam column joint comprises a precast concrete column, a precast concrete beam, replaceable energy-dissipating bars, prestress ribs and an anchor. Prestress rib porous channels and brackets are reserved in a joint area of the precast concrete column. The precast concrete beam is a pre-tensioned prestress beam, a prestress rib porous channel is formed in the middle of the section of the beam end, and a rabbet is formed in the lower part of the beam end. The precast concrete beam is placed on the brackets and is fixed through local post-tensioned prestress ribs in a pressure welding mode, and concrete is poured on the upper surface of the precast concrete beam in a cast-in-place mode at floor height. The replaceable energy-dissipating bars are installed on the upper surface and the lower surface of the precast concrete beam, and the number, the specification and action time of the replaceable energy-dissipating bars are designed according to different seismic levels. When located on the lower surface of the precast concrete beam, the replaceable energy-dissipating bars penetrate through reserved holes in the brackets, and exposed parts are wrapped with mortar. The local prestress assembly type energy-dissipating beam column joint improves restorability of a precast concrete framework under earthquakes, energy dissipation capacity is enhanced, hierarchical shock absorption and energy dissipation are achieved, and post-seismic reparation is facilitated.

A precast composite flooring system utilizes girders and floor panels having steel lower structures placed in tension and concrete upper structures places in compression. Openings through a stem wall allow ducts, pipes, and conduits to be run therethrough. The system provides reduced weight over conventional precast or pour in place systems, allowing further reduction in the weight and size of other building components. The floor deck does not use tensioning strands, allowing openings to be formed at nearly any stage of construction and with reduced concern over cutting steel reinforcement. The floor panels and girders bolt together and bolt to a steel column frame, allowing for more efficient assembly.

The invention relates to a standard steel frame formwork system for concrete floor slabs and a construction method thereof. The system comprises square steel girders, steel frames, saddle girders, vertical bars and cross bars, wherein the cross bars are tied and fixed with the adjacent vertical bars by fasteners; U supports are installed on the vertical bars; the square steel girders are installed on the U supports and serve as main keels; the saddle girders are placed on the main keels; the steel frames are placed on the saddle girders and serve as secondary keels; and formworks are paved onthe steel frames. The construction method comprises the following process flows: snapping floor slab formwork erecting elevation lines; placing cross position lines of the vertical bars; installing vertical bar crossers on the cross position lines; installing the vertical bars; installing the cross bars; installing the U supports; installing the square steel girders; installing the saddle girders; installing the standard steel frames; levelling lines; paving multi-layer slabs fully; adjusting, arching and reinforcing; cleaning; inspecting and accepting; and removing the formwork. The system and the construction method have the following beneficial effects: the system has the characteristics of factory processing and tool-typed installation; and the construction method has the advantages of good stability, safety, reliability, time and labor saving, high construction speed and high turnover rate, can save lots of wood and funds, and meets the requirements for energy saving, environmental protection and economic benefits.

The invention belongs to the field of foundation pit supporting and underground engineering, and provides a pile and wall integrated structure combining an outer wall of a basement body and a guard pile. According to the technical scheme, a narrow space is formed between the outer wall of a basement and the guard pile, in the space, a net-hanging guniting layer, a thermal insulation layer and a flexible waterproof layer are sequentially bonded to the side face of the outer wall of the basement, a force transmission plate strip is arranged on the outer side of the outer wall of the basement, the force transmission plate strip is horizontally arranged at the position of each floor of the basement, the force transmission plate strip is perpendicular to the outer wall of the basement and horizontally inserted into the surface of the net-hanging guniting layer, a foundation slab extends to the surface of the net-hanging guniting layer, the thermal insulation layer is broken at the position where the force transmission plate strip makes contact with the foundation slab, and the flexible waterproof layer continues at the position where the force transmission plate belt makes contact with the foundation slab. According to the pile and wall integrated structure, combined action of the guard pile and the outer wall of the basement at the permanent use stage is achieved, the thickness of the outer wall of the underground structure can be reduced after consideration is given to the rigidity of the guard pile, therefore, engineering investment is saved, and resources are used reasonably.

An interconnected double hull construction for the basement of a building. The double hull construction includes a plurality of interior wall boards attached to the interior face of the foundation walls in a manner adapted to provide communication between air passageways located behind the wall boards and the ambient air within the basement. A plurality of secondary floor slabs are placed over the primary floor slab. A plurality of spacer members located between the primary floor slab and the secondary floor slabs are adapted to provide a plurality of interconnecting passageways. An air exhaust system is adapted to draw ambient air from within the basement through the air passageways and/or through the plurality of interconnecting passageways and exhaust the air from the structure. Sump pump means are provided for gathering water from within the basement and exhausting the water from the building.

The invention relates to a blocking strip and a blocking net framework. The blocking strip comprises at least two strip sides, at least one of which is provided with convex teeth that are provided with breaches, the breaches are internally provided with agnails or barbs. The blocking net framework can be made by applying the blocking strip, and is formed by connecting keels, the blocking strip and a steel screen in a combining way. The keels are section steel parts and are arranged in parallel according to certain spacing; the blocking strips are vertical to the keels, arranged in parallel according to certain spacing and are fixed at one side or two sides of the keels to form a steel frame; the steel screen is distributed with a longitudinal convex rib as well as fish scales holes or meshes on the surface; the steel screen is attached to the outer surface of the steel frame, and is firmly and conveniently blocked and connected with the blocking strip. The invention solves the problems of composition and construction of a steel screen concrete member as well as the reinforcement of a steel screen concrete wall body. Meanwhile, the invention realizes large-scale and mechanized production, and is suitable for various building structural elements, especially for the structures of multilayer and high residential building wall bodies and floor slabs.

A retrievable combinational house comprising a main body to store following items, at least one motor to expand and retrieve the combination, at least one floor part, at least one wall part and at least one roof part; when the combination expands, the motor expands the roof part, the wall part and the floor part in series to double the area, while retrieval, the motor retrieves the floor parts, the wall parts and the roof parts in reverse order into the main body.

A joist-and-deck floor construction system uses open-web steel joists (OWSJ) having continuous top-chord cap plates to facilitate continuous placement of corrugated steel deck over the OWSJs and to allow shear connectors to be field-applied to the cap plates, through the lower flutes of the deck, to achieve composite structural action between the OWSJ and a concrete floor slab poured over the deck. A composite steel stud wall construction system has a bottom track perforated to receive reinforcing dowels projecting from a concrete support element, such that infill concrete may be placed to a desired height within the stud assembly to give the lower ends of the studs a significant degree of structural fixity. The stud wall can also be constructed on top of steel floor deck, prior to placement of floor concrete.

The invention discloses a snap-in self-ornamental composite insulated building module used by a high-rise building and a building construction method for the same. The building module mainly comprises an external walling module, an internal walling module and a clamping piece. The building construction method comprises the following steps that: a). reinforcing steel bars of a ground ring beam, a shear wall and a constructional column are bound; b). the external walling module and the internal walling module form hollow walling through the clamping piece and a draw-in gear by means of clamping, and the shear wall and the constructional column are positioned inside the hollow walling; c). wires are bound on the reinforcing steel bars to form outlines of the shear wall and the constructional column; d). concrete placement is respectively performed to form the shear wall and the constructional column; e). fire-retardant foam particles and foam concrete are used for mixed placement of the hollow walling to complete filling of the walling; f). the superface of a floor is fixed by a floor module bracket, and the steps are repeated until the building construction is completed. The building construction method can complete external decoration, internal plastering, simultaneous filling of a shear wall moulding board, a masonry and a beam moulding board at a time without arrangement of outdoor safe scaffolding, thereby the building construction method is energy-saving, high-efficiency, safe and environment-friendly.

A dry hot water heating floor, belonging to the technical field of floor radioactive heating, comprises a floor decorative layer, an upper layer of metal heat conductive film, a heating pipe, a lower layer of metal heat conductive film, an insulated layer, a wood joist and a floor slab (or a ground). The heating pipe is adhered in an insulated material pipe groove, and is equipped with the metal heat conductive film extending around up and down so as to expand the heating surface thereof and make temperature of the floor surface uniform with reduced heat loss downwards; the wood joist has relative compact structure without hollow volume inside, so as to improve heat engineering mechanical property; the pipe diameter of the heating pipe is smaller than that of a heating pipe of an ordinary wet floor, but greater than that of a heating pipe of an integrated dry floor, so as to reduce thickness of construction layer and floor load, with low request of water quality, and low system resistance, and reduce cycle water bump power consumption. The floor structure can be pre-cast, or pre-cast partly, or assembled and paved in site, with simple construction, convenient maintenance, which is appropriate for new building heating, and building heat as well.