HomeMy WebLinkAbout04072005 BSC Agenda Item 7 • •
Annette Arriaga
From: Dennis Mack
Sent: Monday, April 04, 2005 11:03 AM
To: Annette Arriaga; Josie Orosco; Pete Solis; Paul Wolf
Cc: Daniel Paripovich; Michael Ross; Ron Wicker; Neslihan Tesno
Subject: Temporary fencing
Annette and Jose please take all steps necessary to implement the following policy changes.
The changes are:
1) Prior to issuance of a demolition permit, permittee shall install temporary fencing separating all utility easements
from the remaining building site. This fencing shall remain in place during any excavation work using any type of
machinery.
2) Contractor shall provide proof to the city that they have complied with Texas One Call System.
1-800-245-4545.
Incoming mail is certified Virus Free.
Checked by AVG anti-virus system (http://www.grisoft.com).
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FI
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Ordinance No.
AN ORDINANCE RELATING TO FOUNDATIONS; AMENDING THE CODE OF
ORDINANCES OF THE CITY OF WEST UNIVERSITY PLACE, TEXAS; AND
CONTAINING FINDINGS AND PROVISIONS RELATING TO THE SUBJECT.
WHEREAS, the building official of the City has proposed certain amendments to
the Standard Codes Schedule (and standard codes that are incorporated into the Code
of Ordinances by that schedule); and
WHEREAS, such amendments were referred to the Building & Standards
Commission, which has recommended them for consideration and adoption by the City
Council;
NOW, THEREFORE,
BE IT ORDAINED BY THE CITY COUNCIL OF THE CITY OF WEST
UNIVERSITY PLACE:
Section 1. The Standard Codes Schedule of the Code of Ordinances of the City
of West University Place, Texas is hereby amended as set out in Appendix A, which is
attached to and made a part of this ordinance.
Section 2. All ordinances and parts of ordinances in conflict with this Ordinance
are repealed to the extent of the conflict only.
Section 3. If any word, phrase, clause, sentence, paragraph, section or other +
part of this Ordinance or the application thereof to any person or circumstance, shall
ever be held to be invalid or unconstitutional by any court of competent jurisdiction,
neither the remainder.of this Ordinance, nor the application of such word, phrase,
clause, sentence, paragraph, section or other part of this Ordinance to any other
persons or circumstances, shall be affected thereby.
Section 4. The City Council officially finds, determines and declares that a
sufficient written notice of the date, hour, place and subject of each meeting at which
this Ordinance was discussed, considered or acted upon was given in the manner
required by the Texas Open Meetings Act, as amended, and that each such meeting
has been open to the public as required by law at all times during such discussion,
consideration and action. The City Council ratifies, approves and confirms such notices
and the contents and posting thereof.
Section 5. This Ordinance takes effect on the tenth day following its publication,
as provided in the City Charter ("Effective Date").
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PASSED, APPROVED AND ADOPTED ON FIRST READING on
2005.
Councilmembers Voting Aye:
Councilmembers Voting No:
Councilmembers Absent:
PASSED, APPROVED AND ADOPTED ON SECOND READING, AND
SIGNED, on
Councilmembers Voting Aye:
Councilmembers Voting No:
Councilmembers Absent:
Attest: Signed:
City Secretary (Seal) Mayor
Recommended: Reviewed:
City Manager City Attorney
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Appendix A
Amendments to the
Standard Codes Schedule
regarding foundations
3-16-05a Note: Base draft includes the proposed new Section 3 as of 11-29-04;additional
revisions after that date are marked in the text.
Delete the existing paragraph 3 under "International Building Code"and insert
the following:
3. The foundation for each new building(and each new addition to a building) All
fuundations iicw buildings containing habitable space(as defined in the IBC)for
• h
must meet the criteria in this section, as applicable. In this section:
"A2LA Lab"means a laboratory accredited by the American Association for
Laboratory Accreditation on the basis of ISO/IEC 17025:1999 ("general
requirements for the competence of testing and calibration laboratories").
"RLPE"means a licensed or registered professional engineer of the State of Texas
who is:
(1) listed with the State Board of Professional Engineers in either the
civil or structural branch of engineering(but, from and after May 1,
2006, listing in the structural branch is required);
(2) employed by a registered engineering firm of the State of Texas;
and
(3) (unless waived by the BSC as provided in"f"below)covered by
professional errors and omissions insurance that: (i) has limits of
at least$250,000 per claim(and at least$500,000 per year,
aggregate) and(ii)has effective dates—including any retroactive
coverage date—that include the entire period when the person
provides services or takes actions regulated by this section.
"RLGE"means a person who is:
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(1) either: (a) a registered professional geoscientist of the State of
Texas, or(b) a licensed or registered professional engineer who is
listed with the State Board of Professional Engineers in a relevant
branch of engineering(civil, structural or geological)and
employed by a registered engineering firm of the State of Texas;
and
(2) ., - . , .-, : .- . . ••. . . . •• covered by
professional errors and omissions insurance that: (i) has limits of
at least$250,000 per claim(and at least$500,000 per year,
aggregate)and(ii) has effective dates—including any retroactive
coverage date—that include the entire period when the person
provides services or takes actions regulated by this section.
a. Engineering. Foundations must be constructed in accordance with complete plans
and specifications prepared, signed and sealed(with a manually-imp'esscd scat
and manual-signataie) by a RLPE. The plans and specifications must be prepared
specifically for the site of the work, and they must meet criteria as to scope,
content and form specified by the building official. If there are existing trees
(either to remain or to be removed)within 20 feet of a foundation,that could
affect a foundation,the RLPE must acknowledge, in writing,t,Lrtify that the trees
have been taken into account in the preparation of the plans and specifications.
b. Basic Standards. Each foundation must be an approved basic type listed in the
following chart. In addition,the design of each foundation must be supported by a
geotechnical report and special engineering certification,to the extent indicated in
the following chart.
[Note: chart is new]
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Approved Basic Types. See Note 1. Geotechnical Report. Special Engineering
See Notes 2 and 3. Certification. See Note 4.
Structural slab with void space and deep foundations Limited Not required
Structural floor with crawl space and deep foundations Limited Not required
Stiffened structural slab with deep foundations Full Required
Stiffened non-structural slab with deep foundations Full Required
Mixed-depth system for all new building construction Full Required
Mixed-depth system for building additions with deep foundations Full Required
Another type approved by special exception issued by the BSC. As specified in the As specified in the special
See "f,"below. special exception exception
Note 1. Approved Basic Types. Types of foundations are defined and described in"Foundation Design Options For Residential and Other Low-
Rise Buildings on Expansive Soils"published by the Structural Committee of the Foundation Performance Association,Houston,Texas
(Document#FPA-SC-01-0,Rev#0,30 Jun 04,marked"For Website Publishing"),a copy of which is on file in the City Secretary's office
("FDO").
Note 2. Geotechnical Report,Standards. The plans and specifications for each foundation must be based on a written geotechnical report
prepared,signed and sealed by a RLGE. The report must cover all testing and site evaluation,and all must meet all applicable criteria
in"Recommended Practice for Geotechnical Explorations and Reports"published by the Structural Committee of the Foundation
Performance Association,Houston,Texas(Document#FPA-SC-04-0,Rev#0,11 April 2001,issued for website publishing),a copy of
which is on file in the City Secretary's office. The minimum depth of borings is 20 feet in all cases. All tests and other laboratory work
must be performed by an A2LA Lab.
Note 3. Geotechnical Report,Scope. "Limited"indicates that the geotechnical testing,evaluation and report may be limited to a determination
of the appropriate depth for the deep foundations(but the deep foundation components must meet the other criteria applicable to them).
"Full"indicates that the geotechnical testing,evaluation and report must cover all foundation components.
Note 4. Special Engineering Certification. Where indicated as"required,"for a particular type of foundation,the RLPE must certify that the
plans and specifications were prepared to achieve a soil-caused foundation movement potential of one inch or less,and that the RLPE
used the estimated depth of the active zone and at least two of the following methods to prepare the plans and specifications:
(1)Potential vertical rise(PVR)determined in accordance with Test Method Tex-124-E,Rev.January 1,1978/December 1982,Texas
State Department of Highways and Public Transportation,Materials and Test Division,"Method for Determining the Potential Vertical
Rise,PVR"(a copy of which is on file in the office of the City Secretary).For this purpose,the"dry"moisture condition(from which
little shrinkage is experienced,but where volumetric swell potential is greatest)shall be used for each sample and test.
(2)Swell tests performed in accordance with ASTM D4546-03,"Standard Test Methods for One-Dimensional Swell or Settlement
Potential of Cohesive Soils"as last revised prior to June 1,2004.
(3)Suction and hydrometer swell tests performed in accordance with ASTM D5298-03"Standard Test Method for Measurement of Soil
Potential(Suction)Using Filter Paper"and ASTM D6836-02"Standard Test Methods for Determination of the Soil Water Characteristic
Curve for Desorption Using a Hanging Column,Pressure Extractor,Chilled Minor Hygrometer,and/or Centrifuge,"as such methods were
last revised prior to June 1,2004.
• "a - - a
-•
i -: . i t • t • i - •• » •.t - • 1 , • - -. • • • •
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foundation Performance Association, Honstern, Texas (Document#IPA-SC-04-0, Rev #0, 11
• .. - - . • - - .^-PUP
office.
Partial exception: If the Ifftsie type of foundation is "structural slab with
foundations, but they the deep foundation components must meet the other
:.. i. • i JUR PS.J►�1i:1.a�1�.�w1�1�i.1�1k:1�I
The minimum depth of borings is 20 feet in all cases. All tests and other
laboratory-work must be perfornrcel by an A2L. .
c. Foundation Performance Standard. For each foundation, the RLPE must certify
•
• • - :
plans and specifications:
•• : .:
of Highways and Public Transportation, Materials and Test Division, qq
•• - : - : : - : • woes•» - - - - - -:, ..
•• . - - - ••- ow - • • -- - • .- .-- : • -• - -• .and test.
• : :: •• = . . " :.•TV
. ••
(3) Suction and hydrometer swell tests performed in accordance with ASTM
D5298-03 "Standard Test Method for Measurement of Soil Potential
(Suction)-1 sing Filter-Paper"and ASTM D6836-02 "Stan-dard Test
Methods for Deteiminathin of the Soil Water Charactc
Dcsofption- Tsiitg i-+-Luigiiig COlUiiui, Pie . - • : , • : • :
Ilygiomcterand/or Centrifuge," as such method were last revised piioi to
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June 1, 2004.
9;
,, cc •
» _• _ • • • • ••-•suction or hydrometer testis required.)
d. Foundations, Basic Types. Each foundation must be of an approved basic type.
.. : • : .i ..-- i - - -• . : • . . - •.-- : I. :• : - . -
• - a -
• •-- ,, • - -
is oh file in the City Sectetary's office("FDO").
(1) Structural slab with void space and deep foundations.
(2) Structural floor with crawl-space and deep foundations.
(3) Stiffened stt actutal slab with deep foundations.
(4) Stiffened non-structural slab with deep foundations.
(5) Grade-supported stiffened-structural slab.
(6) Grade-supported stiffened non-structural slab.
(7) Grade-supported non-stiffened slab of uniform thickness (approved for
one-story buildings—or-additions to buildings--containing only gatage-hr fl
(6) Mixed-depth system for all new building construction.
(7) Mixed-depth systenrur building additions with-deep foundations.
(8) Another type approved by special exception issued by the BSC. Sce"h,"
below.
e-c.. Foundations, Deep Support Components. Deep support components must be of
an approved type. Approved types are listed below. In this list, types of deep
support components are defined and described in FDO.
(1) Drilled and underreamed concrete piers.
(2) Drilled straight-shaft concrete piers.
(3) Auger-cast concrete piles.
(4) Another type approved by special exception issued by the BSC. See"h,"
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t
below.
d. FOuridulien,S, Reinforcement. Reinforcement for each foundation must be of an
approved type. Approved types are listed below. In this list,types of
reinforcement are defined and described in FDO.
(1) Deformed bar reinforcing.
(2) .. , - - - - , _ • .. : • : : - . • _ --.•
': - : ..• :' -- : • • : • le : : - V. , :
habitable space).
(3) Another type approved by special exception issued by the BSC. See"h,"
below.
g. e. Foundations, Observation & Certification. Each foundation must be
professionally observed and must be certified by an RLPE,as more fully
described below:
(1) Observations must:
(i) be performed either by the certifying RLPE or by one or more
persons under that RLPE's direct supervision and control whose
professional qualifications are approved by the RLPE(any such
person may be an RLGE,with respect to geophysical matters),
(ii) include actual measurement of piers, fill, compaction,
reinforcement, forms, materials,dimensions, structural elements,
, . , attachments, etc. before the work is
covered or concrete is placed(Note: dimensions of an underground
element may be measured or estimated from the forms,boring or
cavity for the element,before pouring or filling),
(iii) be performed continuously during placement of concrete and-any
_ :. . •. -, and
(iv) be documented in a form and manner approved by the building
official (which may include photographs).
(2) Certifications must:
(i) refer to and be based upon the professional observations required
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by this section,
(ii) state that the work complies with the plans and specifications last
approved by the building official (with any field changes that are
ordered by the RLPE and reported to the building official and that
comply with applicable regulations),
(iii) .• -.. . • _ „ - • -,
(iv) comply with criteria as to form and content as may be specified by
the building official,
(iv) be signed and sealed by the certifying RLPE,and
(vi) be filed with the building official.
(3) Certifications may:
(i) rely in part upon an attached certification by a RLGE, as to
geophysical matters,and
(ii) rely in part upon an attached certification by an A2LA Lab, as to
materials testing.
Before framing or other work commences atop a foundation(and before the
foundation is otherwise covered), the permittee must obtain written
acknowledgment from the building official that the certification for the foundation
was duly filed as required above. Certifications,plans, specifications and related p
items may be kept on file by the City, for public inspection, for an indefinite
period of time.
it f. Special Exceptions. The BSC may issue a special exception from any requirement
in subsection"a"through"g,"above, but only upon a showing that:
(1) the requirement will not affect life safety or the performance of a structure
' . . ; or•
(2) an alternate requirement to be imposed by the special exception will
provide equal or better protection for life safety and long-term structural
performance.
However: (i)unless the basic type of foundation is"structural slab with void space
and deep foundations"or"structural floor with crawl space and deep
foundations,"as described in this section,the BSC may not issue a special
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exce.tion waivin• an re.uirement for an RLPE vi RLGE to have .rofessional
errors and omissions insurance in whole or in .art• and ii the BSC ma not
waive any requirement for an RLGE to have such insurance. In connection with
any such-special exception, the BSC may require that the applicant provide
supporting engineering data and opinion, and the BSC may impose conditions to
carry out the purpose and intent of applicable regulations.
Amend paragraph 4 under "International Building Code"as follows:
4. All concrete piers, footings and foundations must be cured for at least 72 hours before any
significant load is placed on them.
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Draft amendment of the
Standard Codes Schedule
regarding structural framing
and similar elements
revised 3-16-05
Standard Codes Schedule
Adoption. Subject to the amendments and deletions indicated beneath each code, each of the following codes,
including all of its published appendices and attachments, is adopted, ordained and made a part of the Code of
Ordinances of the City and of each chapter where it is referenced, except as otherwise expressly provided.
Procedure for amendments,etc. The procedure for adopting new codes, updated codes, local amendments and
provisions for administration and enforcement of these codes is as follows: (1)proposal by the building official
or other appropriate City official, (2)referral to the Building&Standards Commission, (3)consideration by the
City Council, after giving required meeting notices, and(4)adoption and publication, as required by Article II of
the City Charter.
International Building Code,2000 Ed.,International Code Council,Inc..
5. The structural elements for the following must meet the criteria in this section, as
applicable:
(i) each new building(and each addition to an existing building)containing
habitable space and having a floor higher than four feet, or having a gross
floor area of 485 square feet or more; and
(ii) each accessible deck,balcony,walkway and similar structure having a
floor higher than seven feet.
This section does not apply to foundation elements observed and certified under another
section.
In this section:
"A2LA Lab"means a laboratory accredited by the American Association for
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Laboratory Accreditation on the basis of ISO/IEC 17025:1999 ("general
requirements for the competence of testing and calibration laboratories").
"RLPE"means a licensed or registered professional engineer of the State of Texas
who is:
(1) listed with the State Board of Professional Engineers in either the
civil or structural branch of engineering(but, from and after May 1,
2006, listing in the structural branch is required);
(2) employed by a registered engineering firm of the State of Texas;
and
(3) covered by professional errors and omissions insurance that: (i)
has limits of at least$250,000 per claim(and at least$500,000 per
year, aggregate)and (ii)has effective dates—including any
retroactive coverage date—that include the entire period when the
person provides services or takes actions regulated by this section.
a. Engineering. Structural elements must be constructed in accordance with
complete plans and specifications prepared, signed and sealed by a RLPE. The
plans and specifications must be prepared specifically for the structure in
question, and they must meet criteria as to scope, content and form specified by
the building official.
b. Fire Protection. Any part of a structural element within five feet of a property
line must be composed or, or fully protected by,materials with a"one-hour"fire
rating, or better, determined as provided in of the
Code.
c. Observation & Certification. Structural elements must be professionally observed
and must be certified by an RLPE, as more fully described below:
(1) Observations must:
(i) be performed either by the certifying RLPE or by one or more
persons under that RLPE's direct supervision and control whose
professional qualifications are approved by the RLPE,
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(ii) include actual observations of each beam, joist,rafter and similar
element: (i) after all required plumbing, electrical and mechanical
"rough-in"inspections have been passed ,"
.: ' • - • :- .- - :: , and(ii)before it is
covered, and
(iii) be documented in a form and manner approved by the building
official (which may include photographs).
(2) Certifications must:
(i) refer to and be based upon the professional observations required
by this section,
(ii) state that the work complies with the plans and specifications last
approved by the building official (with any field changes that are
ordered by the RLPE and reported to the building official and that
comply with applicable regulations),
(iii) comply with criteria as to form and content as may be specified by
the building official,
(iv) be signed and sealed by the certifying RLPE,and
(v) be filed with the building official.
(3) Certifications may rely in part upon an attached certification by an A2LA
Lab, as to materials testing(if applicable).
Before an a-beam 'oist rafter or similar element is covered: i all re uired cit
ins.ections relating to that element must be passed, and(ii the permittee must '
obtain written acknowledgment from the building official that the certification for -
that element was duly filed as required above. For any given building, there may
be more than one certification filed.
After a beam,joist,rafter or similar element has been observed and certified, as
provided above, it may not be notched, bored or structurally altered without: (i) a
new or amended permit, if required, and(ii) a new observation and certification,
in accordance with this section. gn
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Certifications,plans, specifications and related items may be kept on file by the
City, for public inspection, for an indefinite period of time.
d. Special Exceptions. The BSC may issue a special exception from any requirement
in subsection"a"through"c,"above, but only upon a showing that:
(1) the requirement will not affect life safety or the performance of a structure
(for its estimated useful life); or
(2) an alternate requirement to be imposed by the special exception will
provide equal or better protection for life safety and long-term structural
performance.
In connection with any such special exception,the BSC may require that the
applicant provide supporting engineering data and opinion, and the BSC may
impose conditions to carry out the purpose and intent of applicable regulations.
Pit ed