摘要:
A modular beam structure consisting of one or more collapsible, lockable and interconnectable support structure modules, and any transition module to change longitudinal direction of the structure. In addition, it is possible to attach onto one or more support structure modules a collapsible platform and/or wall or fence. The structure is at an upstream end or start end attachable, via a module end element, onto an attachment device, e.g. a wall or attachment block, via a support frame which is fixedly attached to the attachment device.
摘要:
There is provided an H-section steel in which a number density of oxide particles having an equivalent circle diameter of 0.005µm to 2.0 µm per unit area is 100 pieces/mm 2 to 5000 pieces/mm 2 , the oxide particles includes Ca, Al, and O as a composition, the amount of Ca is 5% or more, the amount of Al is 5% or more, and a total amount of Ca and Al is 50% or more by mass ratio excluding O in the oxide particles, a thickness of the flange is 100 mm to 150 mm, a bainite fraction in a metallographic structure of the flange is 80% or more at a strength evaluation position, and an average prior austenite grain size in the metallographic structure of the flange is 200 µm or less at a toughness evaluation position.
摘要:
A truss system for roofing a building; a truss of said truss system including at least one truss segment; each said truss segment comprising a first elongate element and a second elongate element; said first and second elongate elements interconnected at intervals by a series of fish-plate assemblies; said fish-plate assemblies arranged in sliding engagement with respective extruded fish-plate channels of said first and second elongate elements.
摘要:
The present invention is predicated upon the provision of systems and methods for reinforcement of a structural member. More particularly, the present invention is predicated upon unique carrier configurations and application of reinforcing material thereto. In one configuration, the application of reinforcing material is achieved without the use of fasteners, adhesives, or both, for placement, locating and restrictive movement of the reinforcing material onto the carrier.
摘要:
A structural member, e.g. a truss for erection of temporary structures, comprises a number of elongate elements (10-13) disposed in spaced generally parallel relationship to one another with transversely extending elements (14-23) therebetween, and an element extending longitudinally of the structural member has a formation (30) extending lengthwise of it for engagement by an attachment member which is to be retained to the longitudinally extending element at any of a range of positions therealong. The attachment member may provide for connection of a safety element to the structural member, and be freely movable therealong in use.
摘要:
The present invention relates to an aluminium chassis (100) having heat insulating foam (120) filled in an opening portion (100a), its process and apparatus. There is provided a method for forming heat insulating foam (120) in the opening portion (100a) of the aluminium chassis (100) comprising: applying adhesives to the opening portion (100a) while the aluminium chassis (100) is moved at a regular speed by an ordinary control unit; closing partially an upper part of an opening portion (100a) of the aluminium chassis (100) applied with the adhesives; filling preliminary granular foam (110) into the opening portion (100a); supplying dry vapor directly to the preliminary granular foam (110); heating indirectly the aluminium chassis (100) while it is transferred; discharging the aluminium chassis (100); and cooling the aluminium chassis (100). According to the present invention, the heat insulating foam (120) is filled in the opening portion (100a) in accordance with the present invention, whereby enhancing soundproof capability and heat insulating capability. Furthermore, productivity and working efficiency is enlarged as the process for forming the heat insulating foam (120) is carried out successively.
摘要:
Grate (1) for use as a shelf for pallet racks or heavy duty racks having two longitudinal sides (2a, 2b) and cross members (3a-3j) arranged between the longitudinal sides, wherein the longitudinal sides are in the form of a profile in cross section, wherein the profile comprises at least one first leg (L1) and a second leg (L2) arranged substantially at right angles to the first leg, wherein at least two of the cross members have an open - in particular U- or V- or L-shaped - profile in cross section, the open side of said profile being oriented towards the underside (U) of the grate, wherein each of these cross members has at least two punch holes at each end, wherein the first leg of the profile is arranged in each punch hole and is connected firmly thereto via a connecting method, characterized in that the connecting method is a form- and/or force-fitting connecting method and in that the first leg of the profile has at least one deformation.
摘要:
An H-section steel has a predetermined chemical composition, in which a Mg-containing oxide having an equivalent circle diameter of 0.005 µm to 0.5 µm is contained at a total number density of 100 pieces/mm 2 to 5000 pieces/mm 2 , a thickness of a flange is 100 mm to 150 mm, at a strength evaluation portion which is at a 1/6 position from a surface of the flange in a length direction and at a 1/4 position from the surface in a thickness direction, a fraction of bainite in a steel structure is 80% or more, and the average prior austenite grain size is 70 µm or more, and at a toughness evaluation portion which is at a 1/2 position from the surfaces of the flange in the length direction and at a 3/4 position from the surface of the flange in the thickness direction, the average prior austenite grain size in a steel structure is 200 µm or less.