1037 results about "Joint (building)" patented technology

The invention discloses an I-shaped column-full dry type connection RC beam column joint and a connection method, and belongs to the technical field of building structure engineering. The joint comprises a prefabricated I-shaped column, a stepped beam, a shear connector and a U-shaped connecting steel plate. A long bracket and a short bracket are respectively arranged at the top and the bottom of the I-shaped column; the end part of the step-shaped beam is in an inverted step shape and is provided with an extending section; the shear connector is a long-strip-shaped steel member provided with a screw rod; and the U-shaped steel plate is provided with screw holes which are respectively matched with the shear connector and the beam end screw. During connection, rapid assembly is achieved in the mode that the brackets of the upper column and the lower column are in lap joint, shear key grooves are interlocked, the shear connectors penetrate into the square holes, the beam bodies are supported on the combined brackets, and finally the U-shaped steel plates are used for anchoring. According to the joint, complete dry type operation is achieved, cast-in-place concrete and steel bar welding are not needed, the construction efficiency is remarkably improved, wet operation is reduced, loads can be borne after installation, the overall performance is reliable, and the development requirement of fabricated buildings is met.

The invention relates to a method, a system and equipment for predicting creep stress at a joint of a concrete structure and a medium. The method comprises the following steps: testing a concrete structure material and a concrete structure joint filling material, and constructing a joint material performance database based on test data; constructing a multi-scale mechanical model comprising a macrostructure model and a microcosmic interface model based on the seam material performance database; constructing an interface constitutive relationship based on the seam material performance database and the multi-scale mechanical model; and predicting the creep stress at the joint of the concrete structure based on the material performance database at the joint, the multi-scale mechanical model and the interface constitutive relationship. The method can fully consider the sudden change of the performance of the material at the joint and the interface effect, provides reliable technical support for the safety evaluation and maintenance of the concrete structure, and is particularly suitable for engineering application of large-span and high-rise buildings and the like with higher requirements on the long-term performance of the structure.

The utility model relates to the technical field of constructional engineering, and discloses structural gap grouting equipment for constructional engineering construction, which comprises a base, a grouting mechanism is arranged at the top of the base, the grouting mechanism comprises a box body and a pump machine, the box body and the pump machine are both fixedly connected with the base, the input end of the pump machine is communicated with the base, and the output end of the pump machine is communicated with the base. The output end of the pump machine communicates with a grouting pipe through a hose, and a moving mechanism is arranged in an inner cavity of the base. By arranging the grouting mechanism, slurry condensation can be avoided, a grouting pipe can be conveniently used for grouting by opening a pump, the device is convenient to move by arranging the moving mechanism, a user can conveniently push the device by pushing a handle, the grouting pipe can be fixed by arranging the adjusting mechanism, and the grouting pipe can be driven to rotate by opening a third motor. The grouting direction can be adjusted conveniently, the height of the grouting pipe can be adjusted by starting the first motor, grouting can be conducted on ceilings, floors and vertical joints, and use is convenient.

The invention belongs to the technical field of added elevators, and discloses a fast-assembly type added elevator steel structure main body and a preparation and assembly method thereof, and the fast-assembly type added elevator steel structure main body comprises a hoistway, a door frame and a corridor. The hoistway is composed of four vertical stand columns and a plurality of transverse beams, the ends of the beams are connected with the connecting faces of the stand columns through connecting pieces, each connecting piece comprises a pair of triangular pieces formed by three steel plates perpendicular to one another, a first plate is connected with the stand columns, a second plate is connected with the beams, and a third plate is an inclined strut reinforcing rib. The door frame comprises door head steel beams between the front stand columns, sill steel beams and landing door stand columns between the sill steel beams, the corridor is connected with the outer sides of the sill steel beams, and through holes in the ends of the edge beams are matched with kidney-shaped holes of the mounting bases to adjust the position. The square pipe joints of the front stand column and the rear stand column are staggered in position. The device is fast to install, stable in structure, convenient to adjust, convenient to overhaul and maintain and suitable for the elevator adding project of the existing building.

The utility model discloses a two-way tensioning connecting piece, a connecting assembly and a tool, which relate to the technical field of fabricated buildings and comprise a connecting structure of a double-end connecting rod and a connecting module and a connecting structure of the double-end connecting rod and a female joint in the connecting module. Two ends of the double-end connecting rod are respectively provided with external threads with opposite screwing directions, and the two ends of the double-end connecting rod are respectively connected with the female joints in the connecting module; a rotating part is arranged in the middle of the double-end connecting rod, the double-end connecting rod can rotate around a shaft through a tool capable of driving the rotating part, the length of threads, screwed into female joints, at the two ends of the double-end connecting rod can be increased, the female joints connected with the two ends of the double-end connecting rod are tensioned and fixed, and therefore the gap distance between the female joints at the two ends is reduced; and the connecting module connected with the female joint is tightly mounted in a seamless fit manner.

The invention belongs to the technical field of earthquake toughness improvement of old buildings and earthquake response rapid calculation based on an artificial intelligence technology, and discloses a node for a BRB reinforced old reinforced concrete frame structure, a design method and an earthquake toughness improvement rapid evaluation method of the BRB reinforced old reinforced concrete frame structure. The joint comprises a frame structure beam column joint composed of a reinforced concrete beam component, a column component and a plate component, a buckling restrained brace, a high-strength bolt, a connecting plate, a cladding plate, a bottom plate and stiffening ribs. According to the connection node structure provided by the invention, the damage to the opening positions of the plate components is easier to control through the structure design compared with the damage to the opening positions of the beam and column components in the conventional connection node structure, and the integrity and the bearing capacity of the beam and column components serving as main bearing components of the structure are better protected. According to the probability-based earthquake toughness improvement evaluation method, the structural vulnerability is adopted as a comparison parameter, and the reinforcing effect of the buckling restrained brace on the structure is displayed more visually and more comprehensively through vulnerability control rate analysis.

A fire-blocking gasket includes a profile having a plurality of legs and defines an interior space. The interior space including a fire-blocking material and / or an intumescent material for providing fire, smoke and / or sound protection across a deflection gap in a building joint. The gasket can be installed within the building joint by direct attachment with a track member within the deflection gap.

The invention relates to the technical field of building construction, in particular to a prefabricated section steel column bracket and steel reinforced concrete beam joint which comprises a mounting sleeve, the mounting sleeve is arranged on a rod body of a steel column bracket in a sleeving mode, the steel column bracket is mounted on a column body of a steel column, edge grooves are formed in the two sides of the mounting sleeve correspondingly, steel bars for steel reinforced concrete beams are inserted into the edge grooves, and the steel bars for the steel reinforced concrete beams are inserted into the edge grooves. One end of the steel bar for the steel reinforced concrete beam is inserted into a column body of the steel column, a limiting frame is inserted into one end of the mounting sleeve, a hoop piece is integrally formed on the surface of the limiting frame, and a rubber clamping piece is arranged between the hoop piece and the steel bar for the steel reinforced concrete beam; the prefabricated steel bar frame has the advantages that the prefabricated technical scheme is adopted, the steel column bracket is directly sleeved with the mounting sleeve provided with the steel bars for the steel reinforced concrete beam, and compared with the mode that a steel bar frame is directly bound on site in the prior art, the workload and time of site construction are greatly reduced.

The invention relates to the technical field of building structures, in particular to an assembly type reinforcing joint of a large-span I-shaped rod piece truss, a construction method and a building system.The assembly type reinforcing joint of the large-span I-shaped rod piece truss comprises a first I-shaped piece, a second I-shaped piece and an I-shaped sliding pipe; an I-shaped groove is formed in the I-shaped sliding pipe; a first connecting hole and a second connecting hole are respectively formed in the end parts of the first I-shaped piece and the second I-shaped piece; third connecting holes are formed in the positions, corresponding to the first connecting holes and the second connecting holes, of the I-shaped sliding pipe. The end portion of the first I-shaped piece and the end portion of the second I-shaped piece are arranged in the I-shaped sliding pipe in a sleeved mode. Fastening pieces penetrate through the first connecting holes and the third connecting holes to connect the first I-shaped piece with the I-shaped sliding pipe; fasteners penetrate through the second connecting holes and the third connecting holes to connect the second I-shaped piece with the I-shaped sliding pipe.

The invention provides a BIM-based fabricated building structural mechanical property optimization method and system, and relates to the technical field of model simulation, and the method comprises the steps: when a user carries out structural mechanical property optimization on a fabricated building based on a BIM model, capturing a user operation sequence in real time, and deconstructing an optimization decision path of the user; based on the optimization decision path, comparing with a preset optimization knowledge base, and identifying and positioning an optimization blind area possibly neglected by the user; wherein the optimized blind area at least comprises a coupling relation between thermal insulation material performance and structural node mechanical behaviors; and based on the optimization blind area, carrying out implicit heuristic intervention on the user, specifically, revealing the optimization potential in the optimization blind area through parameterized fine tuning, and feeding back a self-adaptive intervention process according to user cognition until the user is guided to autonomously complete optimization. The optimization precision of the mechanical property of the fabricated building structure is improved, the design efficiency and the user experience are remarkably improved, and meanwhile the safety and the energy-saving effect of the building are guaranteed.

The utility model provides a prefabricated assembly type notch plate connecting joint based on a concrete modular integrated building. The prefabricated assembly type notch plate connecting joint comprises a first prefabricated floor slab and a second prefabricated floor slab which are both provided with notches. A transverse main reinforcement of the first prefabricated floor extends out of the left side face towards the left end to form a first connection reinforcement. The stirrups at the notches form connection reinforcing steel bars II; the cross section of the prefabricated floor slab II is L-shaped; the right end of a transverse main reinforcement of the second prefabricated floor extends out of the right side face to form a third connection reinforcement, and a reserved L-shaped notch is formed in the splicing position of the first prefabricated floor and the second prefabricated floor; and through post-pouring of the L-shaped notches, mutual consolidation of the first prefabricated floor slab and the second prefabricated floor slab is achieved, so that the structure has good integrity and anti-seismic performance. According to the MIC box body structure, the L-shaped notches are reserved between the prefabricated floor slabs of the box body, and the connecting steel bars are in lap joint at the notches, so that reliable connection is formed between the two prefabricated floor slabs and the MIC box body through post-pouring concrete at the notches, and the structure has good integrity and excellent anti-seismic performance.

The invention relates to the technical field of pier buildings, in particular to a composite concrete filled steel tube combination column and a mounting method thereof. Comprising a plurality of steel pipes sequentially arranged in the axial direction, and the cross section areas of the steel pipes are the same. An internal connection mechanism is arranged at the internal connection position between every two adjacent steel pipes, and an external connection mechanism is arranged at the external connection position between every two adjacent steel pipes. Built-in profile steel penetrates through the interiors of the steel pipes, and the interiors of the steel pipes are filled with concrete. The anti-bending bearing capacity and the anti-seismic property of the joint are improved, the engineering construction progress is accelerated, and the time efficiency is improved.

The invention discloses a deformation joint structure based on active guide drainage and long-acting sealing and a construction method thereof, and belongs to the technical field of building construction. The structure comprises a bottom active guiding and discharging assembly and a top sealing assembly. The bottom active guide and drainage assembly comprises flexible waterproof adhesive tapes which are fixedly adhered to the side walls of the building structures on the two sides of the deformation joint through adhesive layers, and the flexible waterproof adhesive tapes are bent downwards to form drainage channels; the top sealing assembly comprises waterproof reverse ridges arranged on the top faces of the building structures on the two sides and a top cover plate stretching across the deformation joint. According to the invention, a first defense line is formed through the top cover plate and the side waterproof reverse ridges by taking'changing blockage into dredging 'as a core, so that an external water source is effectively blocked; and a second defense line is formed through the flexible waterproof adhesive tape at the bottom, permeated water flow is actively collected and discharged, the water leakage problem caused by aging of traditional sealant is avoided, and long-acting sealing and water prevention of the deformation joint are achieved.

The utility model belongs to the technical field of building construction steel frame welding, and discloses a building construction steel frame welding butt joint device which comprises a fixing seat, a rotary knob is rotationally arranged on a base of the fixing seat, a connecting shaft is fixedly arranged on one side of the rotary knob, and main gears are fixedly arranged on the outer sides of the upper end and the lower end of the connecting shaft. Two sides of the main gear are connected with auxiliary gears in a meshed mode, a long shaft is fixedly arranged in each auxiliary gear, the other auxiliary gear is fixedly arranged on the other side of each long shaft, a take-up wheel is fixedly arranged on the outer side of each long shaft, and a rope is arranged on the outer side of each take-up wheel in a winding mode. The welding type butt-joint device can conduct welding type butt-joint work on connecting square pipes in the vertical direction or the horizontal direction of the steel frame, butt-joint work can be conducted at any angle, then welding is conducted, and the working efficiency is greatly improved.

The application discloses a super-large swimming pool deformation joint construction structure and a construction method thereof, and relates to the technical field of building construction, comprising a concrete bottom plate, the inner side of the concrete bottom plate is provided with a deformation joint body, the inner side of the deformation joint body is provided with a self-adhesive waterproof coiled material at an upper end position; the adjusting assembly is arranged, the spacing between the two bases can be adaptively adjusted by operating the adjusting assembly, and then the spacing between the two bases meets the width between different deformation joint bodies, and the applicability is improved; the self-adhesive waterproof coiled material and the rubber waterstop are designed into a U shape and filled with an elastic silicone structural adhesive, so that the self-adhesive waterproof coiled material has a certain stretching space, the waterproof effect is ensured when the deformation joint body deforms, the telescopic assembly is arranged, and the waterproof assembly can be telescoped to effectively avoid the problems of arching or cracking of the mosaic when cracking deformation and other problems caused by temperature and the like.

The utility model relates to the technical field of house construction, and discloses a house construction steel bar connecting structure which comprises a first mounting seat and a second connecting seat which are arranged at the joint of two groups of steel bar main bodies, v-shaped grooves are formed in the sides, close to each other, of the first mounting base and the second connecting base. The house building steel bar connecting structure comprises a first mounting base and a second connecting base, multiple sets of butt joint grooves arranged at equal intervals are formed in the sides, close to each other, of the first mounting base and the second connecting base, the butt joint grooves formed in the first mounting base and the second connecting base are designed to be of a staggered structure, a solid part is formed between every two adjacent butt joint grooves, and the solid parts are matched with the butt joint grooves. The steel bar connecting structure can adapt to connection of steel bars with different diameters, the application range and flexibility of the connecting structure are greatly improved, the situation that connecting pieces need to be replaced due to different diameters of the steel bars is reduced, the using effect of the connecting structure is improved, and the actual using requirement is met.

The application discloses a kind of frame structures for the beam-column reticular layout of large-span building, belong to building structure design technical field;Including corner column, adjacent corner column, one corner beam, two corner beams, corner beam, edge perimeter beam, two perimeter beams and inner perimeter beam;Outer edge rectangular frame structure, right triangle frame structure, one corner beam, middle rectangular frame structure, two corner beams and inner edge frame structure are jointly constituted beam-column reticular frame structure;Perpendicular to one corner beam is equipped with corner beam for supporting lap one corner beam, the intersection of corner beam and edge perimeter beam is equipped with adjacent corner column, one corner column, two adjacent corner columns, corner beam and edge perimeter beam jointly constitute right triangle frame structure;It is connected with one two corner beams along the linear direction of one corner beam and extends inward, and two corner beams are connected by inner perimeter beam to form inner edge frame structure.The frame structure of the application can continuously arrange and connect steel beam in limited height, form large-span beam-slab structure, reduce beam height while reducing the negative bending moment of beam at beam-column joint.

The utility model discloses a pouring formwork at a beam-column joint in an assembly type building support-free system in the technical field of building construction, which is characterized in that a reinforcing beam support and a supporting plate are mounted on a stand column through embedded bolts, and then a left formwork and a right formwork are supported and locked through the reinforcing beam support and the supporting plate; the main beam component and the secondary beam component can be positioned and supported more accurately, so that the mounting precision of the beam-slab integrated component is high, and the operation difficulty is effectively reduced; besides, outside a beam column core area, a penetrating type locking structure is not used, beam column joint point formworks are effectively supported through the supporting plates and the reinforcing beam supports, a triangular stress system is formed, the effect of effective and stable supporting is achieved, meanwhile, the overall structural strength of the cast-in-place stand column is not affected, the detachable reinforcing beam supports serve as the supporting structure, and the structure is simple and convenient. After the building component is poured, the reinforcing beam support can be integrally dismantled and recycled, the standard formwork is adopted for construction, splicing is more accurate and compact, and the quality problems such as slurry leakage and slab staggering are effectively avoided.

The utility model relates to the technical field of building construction, and particularly discloses a steel-reinforced concrete joint restraining device. The steel-reinforced concrete joint restraining device comprises joint steel plate hoops, the joint steel plate hoops are parallel to the transverse steel members, the joint steel plate hoops are welded between the transverse steel members at the same section steel member joint, and the welded joint steel plate hoops form a hoop-shaped structure. The node steel plate hoop is made of a strip-shaped steel plate, and the node steel plate hoop and the profile steel component are machined together in a factory. According to the utility model, the defects of difficulty in mounting the constraint steel bars, large field manufacturing and welding workload and substandard protection layer caused by node steel bar deviation in the traditional steel reinforced concrete construction are effectively overcome.

The utility model discloses a box-type steel structure building foundation connecting node in the field of steel structure buildings, which comprises a box-type module, connecting boxes are arranged at corners of the box-type module, positioning holes and connecting holes are arranged on outer end faces of the connecting boxes, foundation connecting plates and long screws are arranged between the connecting boxes of the box-type module and a concrete ground foundation, and the long screws are connected with the box-type module. Positioning cones are arranged on the upper surface of the foundation connecting plate corresponding to the positioning holes, fixing cones are arranged on the lower surface of the foundation connecting plate, through holes are formed in the foundation connecting plate corresponding to the connecting holes, the lower ends of the long screws are pre-buried in the concrete ground foundation, and the upper ends of the long screws penetrate through the through holes and the connecting holes to be connected with the connecting box; the interval D1 between the top face of the concrete ground foundation and the bottom face of the foundation connecting plate is not smaller than 50 mm, and a grouting layer is arranged between the concrete ground foundation and the foundation connecting plate. The box type steel structure building foundation connecting joint has the advantages of being stable in connection, convenient and fast to construct and the like.

The invention relates to the technical field of building construction, and discloses a welding seam treatment device for steel structure joint reinforcement, which comprises a fixing mechanism, a first steel pipe, a second steel pipe arranged on the side wall of the first steel pipe, a connecting block slidably connected to the top of the second steel pipe, and a fixing assembly arranged at the bottom of the connecting block, the connecting lug is welded on the side wall of the fixing assembly; the operating mechanism comprises a telescopic assembly arranged on the side wall of the connecting lug and an anti-skid groove formed in the side wall of the telescopic assembly. The fixing assembly is matched with the connecting block, steel structure joints of different sizes can be adapted, the rotating rod and the driving gear are used for driving the driven gear set and the threaded rod to achieve rapid locking, operation is easy and convenient, and fixing is reliable; through transmission of the lead screw and the telescopic sleeve, the working position can be flexibly adjusted, stability is enhanced in cooperation with the limiting cavity and the connecting rod, the fixing assembly is matched with the telescopic assembly and the connecting rod to adapt to welding and fixing of workpieces with different included angles, and the application range of the device is widened.

The invention discloses a structure and method for preventing leakage and cracking at a top construction joint of a frame structure building infilled wall, the structure comprises a connecting piece, the connecting piece comprises a connecting plate and a leveling part, the connecting plate shields the construction joint between a frame and the infilled wall, and the connecting plate comprises a fixing part fixed on the frame and a shielding connecting part for the construction joint; the connecting part is coated with a first non-curing waterproof glue layer to achieve flexible connection between the plaster layers so as to prevent cracking, and the height of the portion, protruding out of the wall face, of the leveling part is not larger than the thickness of the plaster layers of the wall face so that the screeding function can be achieved. According to the scheme, the connecting plate on the connecting piece is fixed to the frame, so that the plastering layer is coated on the connecting plate, the procedure of plastering mortar into the construction joint is not needed any more, and the sealing waterproof performance of the construction joint is achieved by adhering the strip-shaped sealing waterproof glue layer to the construction joint; and meanwhile, flexible connection of the plaster layer at the connecting piece is achieved through the first non-curing waterproof glue layer, and cracking of the plaster layer is effectively prevented.

The invention discloses a material mixing system for building construction, the material mixing system comprises a material mixing device and a first feeding device, the material mixing device can stir construction materials and is provided with a first feeding port, the first feeding device comprises a first conveying device, a first butt joint device and a first cutting device, the first butt joint device forms a first butt joint channel, and the first cutting device is provided with a second butt joint channel; the lower end of the first butt-joint channel is communicated with the first feeding port, the upper end of the first butt-joint channel can bear packaging pieces of construction materials, the first cutting device is arranged on the first butt-joint device, during operation, the first conveying device conveys the packaging pieces to the first butt-joint channel, and then the first cutting device cuts openings in the packaging pieces. According to the automatic feeding system for the construction materials, the construction materials automatically fall into the material mixing equipment, automatic feeding of the construction materials with packaging pieces can be achieved through the system, the construction efficiency is effectively improved, and the safety of operators is guaranteed.

The utility model discloses a cover and excavation top-down side wall construction joint waterproof structure, and relates to the technical field of side wall construction joint waterproofing, the cover and excavation top-down side wall construction joint waterproof structure comprises a first side wall and a second side wall, the first side wall is located above the second side wall, and a construction joint is arranged at the joint of the first side wall and the second side wall. A first pre-buried plate is pre-buried in the first side wall, a second pre-buried plate is pre-buried in the second side wall, a water stop steel plate is arranged between the first pre-buried plate and the second pre-buried plate, the upper side and the lower side of the water stop steel plate are located in the first pre-buried plate and the second pre-buried plate, and splicing plates are fixedly arranged at the two ends of the water stop steel plate. By means of the water-swelling water-stopping glue, when water seepage occurs to the construction joint, the water-swelling water-stopping glue swells when encountering water, the first splicing groove and the second splicing groove are sealed, meanwhile, the water-stopping steel plate blocks the infiltrated water, and therefore it is avoided that gaps exist in the water-stopping steel plate, water is prevented from infiltrating into a building from the construction joint, and the waterproof effect is improved.

The utility model discloses a kind of steel mortise connecting nodes, belong to prefabricated building technical field, including two matching joint connections first embedded part and second embedded part;First embedded part, be configured with first vertical plate and first horizontal plate in inverted T shape connection;Second embedded part, be configured with second vertical plate and second horizontal plate that second vertical plate bottom end is outwardly stretched and fixedly connected in several type notches, several outwardly stretched dowels are provided on the two sides of second vertical plate side surface;First vertical plate matching insertion and fixedly connected in the several type notches of second vertical plate, and first horizontal plate and second horizontal plate are overlap fixedly connected between.Between the steel mortise connecting node provided by the utility model, node structure whole stability is good, compact structure, assembly is convenient and good safety.

The utility model provides a dewatering well plugging structure, which relates to the technical field of building construction and comprises a double-layer reinforcement cage sleeved in a dewatering well, the double-layer reinforcement cage comprises a reinforcement cage body and a rectangular support frame, the upper end of the reinforcement cage body is connected with the rectangular support frame, a first steel pipe is sleeved on the inner side of the reinforcement cage body, and a second steel pipe is sleeved on the inner side of the first steel pipe. An outer water stop ring is welded to the outer side of the rectangular supporting frame to form a first sealing structure; the partition plate is welded to the inner side of the rectangular supporting frame and covers the first steel pipe to form a second sealing structure, the rectangular supporting frame is filled with a second water stop strip, so that a third sealing structure is formed at the joint, and the multiple sealing structures can ensure the plugging and waterproof closing effects of the joint of the dewatering well and the foundation bottom plate in the later period.

The invention relates to the technical field of building construction, in particular to a kitchen flue hole-lifting-free integrated construction method which comprises the following steps: S1, optimizing a flue hole; s2, the flue formwork is reinforced; s3, concrete pouring; s4, a flue is installed; s5, node sealing treatment is carried out; and S6, performing a closed water test. According to the method, the size of the reserved flue hole is optimized to be matched with the inner overall size of the finished flue, the finished flue can be directly placed on a building structure floor when being installed, and compared with traditional hole hanging method construction, the construction step of filling the fit clearance between the finished flue and the reserved flue hole with concrete is omitted, the construction efficiency is improved, and the construction cost is reduced. Therefore, the forming quality of concrete at the butt joint part of the reserved flue hole and the finished flue is higher, and the risk of leakage of a building floor is reduced.

The utility model relates to the field of building construction, and particularly discloses a connecting joint of a steel beam and a stand column in a steel structure building, which comprises a connecting plate, the connecting plate is simultaneously fixed on a steel beam web and a bracket web through bolts so as to connect the steel beam web and the bracket web, and one end of the connecting plate is hinged to the steel beam web. The connecting plate does not need to be held by hands and adjusted in position, and construction efficiency is greatly improved. The device has the advantages of being stable in structure and convenient to implement.

The application discloses a house building main body wall joint width measuring device and a use method, relates to the wall joint width measuring technical field, and aims to solve the technical problem that the traditional tool can only measure the wall joint surface width, and comprises a plug-in rod, a detection mechanism and an auxiliary mechanism. The conical head of the plug-in rod can guide the device to smoothly extend into a narrow or deep wall joint, the detection rod in the detection mechanism can be expanded along the limiting rod under the drive of the auxiliary mechanism, directly contacts the inner wall of the wall joint, and not only adheres to the surface. According to the direct contact measurement of the detection rod and the inner wall, the reading system composed of the gear, the rack, the pointer and the scale is combined, the staff can directly read the real width of the inner wall, does not need to rely on the surface data inference, avoids the measurement deviation caused by the inconsistent inner and outer sizes, accurately obtains the real width data of the inner wall, provides a reliable basis for the wall joint quality judgment, and solves the problem that the traditional tool can only measure the wall joint surface width.

To provide a quantitative sealant evaluation method for selecting an optimum primer that can ensure long-term reliability of waterproofing of joints on the exterior walls of buildings. [Solution] The evaluation method for sealant 10 includes the following steps: a first step of evaluating the adhesion between adherend 11 and primer 12, and the adhesion between primer 12 and sealant 10, for each temperature condition using a movement test on test specimen 1; a second step of determining the tensile stress as a mechanical property of sealant 10 using a static tensile test and determining the complex modulus of tensile deformation of sealant 10 using a dynamic viscoelasticity test; a third step of determining a relationship diagram between the tensile stress of sealant 10 determined in step 2 and the complex modulus of tensile deformation of sealant 10; and a fourth step of judging the suitability of primer 12 using the relationship diagram determined in step 3, based on the adhesive peel strength of primer 12 assuming the usage environment obtained from steps 1 and 2.