GB2454207A - A flood resistant building foundation - Google Patents
A flood resistant building foundation Download PDFInfo
- Publication number
- GB2454207A GB2454207A GB0721366A GB0721366A GB2454207A GB 2454207 A GB2454207 A GB 2454207A GB 0721366 A GB0721366 A GB 0721366A GB 0721366 A GB0721366 A GB 0721366A GB 2454207 A GB2454207 A GB 2454207A
- Authority
- GB
- United Kingdom
- Prior art keywords
- flood
- foundation
- sub base
- cast
- sub
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000463 material Substances 0.000 claims abstract description 21
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000008878 coupling Effects 0.000 claims abstract description 3
- 238000010168 coupling process Methods 0.000 claims abstract description 3
- 238000005859 coupling reaction Methods 0.000 claims abstract description 3
- 230000014759 maintenance of location Effects 0.000 claims abstract description 3
- 239000004567 concrete Substances 0.000 claims description 10
- 230000002787 reinforcement Effects 0.000 claims description 10
- 238000009408 flooring Methods 0.000 claims description 6
- 230000003466 anti-cipated effect Effects 0.000 claims description 4
- 230000007797 corrosion Effects 0.000 claims description 3
- 238000005260 corrosion Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims description 3
- 239000003351 stiffener Substances 0.000 claims description 3
- 238000010792 warming Methods 0.000 claims description 3
- 238000005266 casting Methods 0.000 claims description 2
- 238000000034 method Methods 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 238000009424 underpinning Methods 0.000 claims description 2
- 238000009749 continuous casting Methods 0.000 claims 1
- 230000003628 erosive effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 239000004568 cement Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000010276 construction Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 241001465754 Metazoa Species 0.000 description 1
- 208000016113 North Carolina macular dystrophy Diseases 0.000 description 1
- 241000283984 Rodentia Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000005056 compaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000007596 consolidation process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000011440 grout Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 230000008961 swelling Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
- E02D27/32—Foundations for special purposes
- E02D27/34—Foundations for sinking or earthquake territories
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02D—FOUNDATIONS; EXCAVATIONS; EMBANKMENTS; UNDERGROUND OR UNDERWATER STRUCTURES
- E02D27/00—Foundations as substructures
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04H—BUILDINGS OR LIKE STRUCTURES FOR PARTICULAR PURPOSES; SWIMMING OR SPLASH BATHS OR POOLS; MASTS; FENCING; TENTS OR CANOPIES, IN GENERAL
- E04H9/00—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate
- E04H9/14—Buildings, groups of buildings or shelters adapted to withstand or provide protection against abnormal external influences, e.g. war-like action, earthquake or extreme climate against other dangerous influences, e.g. tornadoes, floods
Landscapes
- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Civil Engineering (AREA)
- Mining & Mineral Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Paleontology (AREA)
- General Engineering & Computer Science (AREA)
- Emergency Management (AREA)
- Business, Economics & Management (AREA)
- Foundations (AREA)
Abstract
This invention relates to a flood resistant building foundation in which a sub base 14 is used to resist the flood water pressure by coupling together the combined weights of the building, the foundation, sub base 14 and infill material (28 figure 3). The sub base 14 may also provide increased strength by having increased depth. The sub base 14 may be secured to the foundation beams 7 which have a cast in slot and threaded insert. The sub base 14 may be cast in place and connected to the foundation beams 7. In other cases such as plinths for bungalows or lightweight buildings, the sub base (29 figure 4) may be in the form of pre cast sections (31 figure 4) which may include cast in or added stiffening ribs (32 figure 4) for increased strength which may also form pockets (33 figure 4) for the retention of infill material (35 figure 4).
Description
A flood resistant building foundation With global warming, increased flood levels and the need to build on flood prone land.
This invention relates to a flood resistant building foundation in which particular designed sub bases are used to resist the flood water pressure by coupling together the combined weights of the building, the foundation, sub base and infill material also in some cases tensile anchorage.
The sub base also provides increased strength by increased foundation depth.
The sub base may be secured to foundation beams, plinths, floors, pre cast sections walls or wall footings, by cast in slots, pockets, penetrations, threaded inserts, corrosion resistant bolts, designed fastenings, concrete reinforcement or a combination thereof.
When used with foundation beams the sub base may be a cast in place flat sub base connected to the foundation beams In other cases such as plinths for bungalows or lightweight buildings the sub base can be in the form of pre cast sections which may include cast in or added stiffening ribs for increased strength also forming pockets for the retention of infihl material.
Connection to the other parts of the structure can be by the described methods.
The sub base may provide the means of opposing permeating flood water, gaining flood resistant height, under pinning for jacked up buildings, opposing scour from flowing flood water or for gaining economy or height in non flood areas.
In light weight panel building at a high flood risk, the sub base may have continuous cast flood height walls cast onto the sub base.
In some cases tensile anchors may also be used to resist the flood force Buildings can be flooded by the differential head of water compared to the internal atmospheric pressure inside the building which causes pressurized permeation water to flow under the foundation and flooring.
If the flood water both internally and externally is at the same level then there is little differential pressure, however if the building is protected against internal flooding then the differential pressure can be considerable.
Flood water can also cause under floor swelling leading to flood water break through, in such situations repeat flooding can have an accumulative effect.
Well known are traditional buildings with under floor soil base or floated concrete.
Also well known are modern building and economic house designs with light weight panel walls concrete or steel foundation beams, composite flooring and earth only within the foundation.
Such earth only foundations can also be susceptible to animal or rodent boring.
In the past some buildings have experienced under floor flooding, up lift and damage of flooring leading to internal flooding.
In the past most floor designs have only taken into account the vertical downloading on the flooring systems.
With global warming, increasing flood levels and the need to build on flood prone land, it is the intention of this invention to provide a more flood resistant foundation in which a flood resistant sub base uses the combined weight of the building, the foundation, the sub floor and infill material to resist the upward forces of permeated flood water.
In buildings with substantial existing weight and foundation beams the sub floor is supported by the foundation beams as described.
The site is prepared by leveling, followed by consolidation, leveling piles which may also have tensile and compressive ability are driven at the appropriate points, precast foundation beams with slots and inserts are installed along the foundation lines and sealed at the joining points The consolidated ground is checked for level and covered with a plastic membrane.
Bearer brackets are bolted into new designed pre cast slots in the foundation beams.
A concrete reinforcement mesh is placed on the bearer brackets.
The concrete sub base is floated in and vibrated to ensure a complete fill of the slots.
After setting the sub floor is covered with infihl material which can be site material, cement / material mix, or imported material.
In normal building the under floor space is vented to just above the external ground level, however in flood prone areas it is necessary to have no under floor ventilation or to vent above the anticipated flood level.
In buildings with a large floor area but little building weight such as bungalows or light weight industrial buildings the sub base may be in the form of pre cast side panels, stiffening beams, which are assembled on site, then followed with an on site floating in of a concrete ground panel. When set the sub base is then filled with infil material..
In the above case site construction may include site leveling and compaction, setting piles driven and caped, to allow the placement of pre cast foundation beams, also the sub base components to touch the consolidated ground.
Holes in the precast base allow the supporting ground to be grouted to a consistent level.
In the case of buildings that require a below ground compartment or cellar then the sub base will need to resist higher flood water pressure and be designed accordingly.
A further application of the said sub base could be as an under base for jacked up houses.
It is not the intention of this invention to provide flood protection above the designed floor level.
A typical example of this invention will now be described by means off drawings.
Figure 1 Shows. The levels required for design consideration and a side view of a typical construction.
The anticipated flood level 1 building floor level 2 finished external ground level 3 site cleared level 4 setting piles 5 pile caps 6 foundation beams 7 with cast in slot and threaded sleeves. Building inner wall 8 building outer wall 9 compacted ground 10 casting membrane 11 reinforcement support brackets 12 concrete reinforcement mesh 13 concrete sub floor 14 small inset service drainage suinp. 15 infihl material comprised of site material, cement / material mix, or imported material 16 under floor ventilation duct to above anticipated flood level.17.
Figure 2 Shows. A foundation beam 7 with cast in slot to take both the tensile and compressive forces of the flood resistant sub base. 14 A support bracket 12 for reinforcement mesh 13 an additional reinforcement rod 18 A cut out 19 can take an additional reinforcement rod.
The support bracket 12 is retained by bolts 20 and cast in threaded sleeves 21 Figure 3 Shows. A sub base in which side panels, stiffener beams and pre cast items form an onsite sub base assembly.
A side panel 22 with rib 23 fits into a pre cast foundation beam 7 and is held in place by corrosion resistant bolts 24 stiffening beams 25 are secured against tensile and compressive forces by connection to the side panels. A reinforcement mesh 26 is concreted to form a base panel 27 then infihl material 28 above.
Figure 4 Shows. A sub base as may be applied to bungalows and light weight buildings.
A sub base 29 is secured to setting piles 30 which can act in tension or compression.
The sub base 29 is in pre cast sections 31 with stiffener ribs 32 which form pockets 33 to retain infill material 34 and have grout holes 35 The pockets 33have infill material 34 such as compacted cement material mix.
The sub base is topped with a plinth 36 and chosen flooring.
The wall footings 37 may be part of the plinth 36 as pre cast footing beams or be cast on as wall footings..
Claims (19)
- SClaims With global warming, increased flood levels and the need to build on flood prone land.This invention relates to a flood resistant building foundation in which particular designed sub bases are used to resist the flood water pressure by coupling together the combined weights of the building, the foundation, sub base and infihl material also in some cases tensile anchorage.The sub base also provides increased strength by increased foundation depth.The sub base may be secured to foundation beams, plinths, floors, pre cast sections walls or wall footings, by cast in slots, pockets, penetrations, threaded inserts, corrosion resistant bolts, designed fastenings, concrete reinforcement or a combination thereof.When used with foundation beams the sub base may be a cast in place flat sub base connected to the foundation beams In other cases such as plinths for bungalows or lightweight buildings the sub base can be in the form of pre cast sections which may include cast in or added stiffening ribs for increased strength also forming pockets for the retention of infihl material.Connection to the other parts of the structure can be by the described methods.The sub base may provide the means of opposing permeating flood water, gaining flood resistant height, under pinning for jacked up buildings, opposing scour from flowing flood water or for gaining economy or height in non flood areas.In lightweight panel building at a high flood risk, the sub base may have continuous cast flood height walls cast onto the sub base.In some cases tensile anchors may also be used to resist the flood force
- 2 A flood resistant foundation as claimed in claim 1 where in a precast foundation beam has a longitudinal cast in slot to take the upward forces of floodwater permeation and the downward forces of added weight.
- 3 A flood resistant foundation as claimed in claim 1 or claim 2 wherein a precast foundation beani has east in threaded inserts.
- 4 A flood resistant foundation as claimed in claim 1 or claim 2 wherein support brackets are fitted in the precast foundation beam slot to support the sub floor reinforcement and allow concrete casting to extend into the beam slot.
- A flood resistant foundation as claimed in claim! or claim 2 or claim 3or claim 4 wherein the combined forces are secured together by the projection of the sub floor into the recess in the foundation beam.
- 6 A flood resistant foundation as claimed in claim! or any preceding claim wherein the sub base holds infill material.
- 7 A flood resistant foundation as claimed in claim I or any preceding claim wherein the under floor is vented above the anticipated flood level.
- 8 A flood resistant foundation as claimed in claim 1 or any preceding claim wherein the sub base is combined with the flooring system.
- 9 A flood resistant foundation as claimed in claim I or any preceding claim wherein a sub base is in a precast form with cast in stiffeners beams.
- A flood resistant foundation as claimed in claim 1 or any preceding c!aim wherein a sub base is precast in sections.
- 11 A flood resistant foundation as claimed in claim I or any preceding claim wherein the sub base has holes in for grouting.
- 12 A flood resistant foundation as claimed in claim 1 or any preceding claim wherein the sub base is extended upwards by continuous casting.
- 13 A flood resistant foundation as claimed in claim 1 or any preceding claim wherein the sub base is also used to prevent water erosion of the foundation.
- 14 A flood resistant foundation as claimed in claim 1 or any preceding claim wherein the sub base is also used to gain height to reduce the flood potential.
- A flood resistant foundation as claimed in claim I or any preceding claim wherein the sub base is used to under pin a jacked up building.
- 16 A flood resistant foundation as claimed in claim 1 or any preceding claim wherein the sub base is applied to a metal foundation beam.
- 17 A flood resistant foundation as claimed in claim 1 or any preceding claim wherein the sub base is consiructed in the form of a frame and impervious membrane.
- 18 A flood resistant foundation as claimed in claim 1 or any preceding claim wherein the wall footings are in precast form.
- 19 A flood resistant foundation substantially as claimed in claim I or any preceding claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0721366A GB2454207A (en) | 2007-10-30 | 2007-10-30 | A flood resistant building foundation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB0721366A GB2454207A (en) | 2007-10-30 | 2007-10-30 | A flood resistant building foundation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| GB0721366D0 GB0721366D0 (en) | 2007-12-12 |
| GB2454207A true GB2454207A (en) | 2009-05-06 |
Family
ID=38834592
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB0721366A Withdrawn GB2454207A (en) | 2007-10-30 | 2007-10-30 | A flood resistant building foundation |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB2454207A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114541465B (en) * | 2022-03-28 | 2023-08-04 | 中建三局集团有限公司 | Prefabricated assembled steel construction tower crane foundation that can have enough to meet need |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006138079A (en) * | 2004-11-10 | 2006-06-01 | Ito Kensetsu:Kk | Foundation reinforcing equipment and construction method for foundation |
-
2007
- 2007-10-30 GB GB0721366A patent/GB2454207A/en not_active Withdrawn
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006138079A (en) * | 2004-11-10 | 2006-06-01 | Ito Kensetsu:Kk | Foundation reinforcing equipment and construction method for foundation |
Also Published As
| Publication number | Publication date |
|---|---|
| GB0721366D0 (en) | 2007-12-12 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |